Oct. 10, 1967
<;_ E, VALENTE
3,345,933
COIN OPERATED AUTOMATIC VENDING MACHINE, TO BREW AND
DISTRIBUTE HOT COFFEE IN CUPS
Filed April 8, 1964
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3,345,933
COIN OPERATED AUTOMATIC VENDING MACHINE, TO BREW AND
DISTRIBUTE HO'T COFFEE IN CUPS
Filed April 8,
1964
'
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Oct. 10, 1967
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com OPERATED AUTOMATIC VENDING MACHINE, TO BREW AND
DISTRIBUTE HOT COFFEE IN CUPS
Filed April 8, 1964
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Oct. 10, 1967
c. E. VALENTE
3,345,933
COIN OPERATED AUTOMATIC VENDING MACHINE, TO BREW AND
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Filed April 8, 1964
DISTRIBUTE HOT COFFEE IN CUPS
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COIN OPERATED AUTOMATIC VENDING MACHINE, TO BREW AND
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COIN OPERATED AUTOMATIC VENDING MACHINE, TO BREW AND
DISTRIBUTE HOT COFFEE IN CUPS
Filed April 8, 1964
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Oct. 10, ‘1967
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COIN OPERATED AUTOMATIC VENDING MACHINE , TO BREW AND
Filed April 8, 1964
DISTRIBUTE HOT COFFEE IN CUPS
'7 Sheets-Sheet 7
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United States Patent 0 ” ice
1
2
3,345,933
all ofrthe hydraulic servomotor cylinders needed and co
ordinated by the different functions of device, a further
hydraulic circuit adapted to receive drinking water, and
COIN OPERATED AUTOMATIC VENDING MA
CHINE, TO BREW AND DISTRIBUTE 'HOT ,
COFFEE
1N
CUPS
'
' -
Carlo Ernesto Valente, Via G. Ventura 5, Milan, Italy
’
Filed Apr. 8, 1964, Ser. No. 358,169
Claims priority, application Italy, Dec. 4, 1963,
'
3,345,933
Patented Oct. -10, 1967
motor, said second pump being arranged to furnish water
at a given pressure to a receiving tank adapted to receive
and heat water for the brewing of coffee, and to provide
water for the ?ushing out of strainers after each use there
of through a duct and valve (usually shut), a ?rst valve
33,938/ 63
13 Claims. (Cl. 99-283)
Tin's invention concerns coin operated vending ma
chines, particularly for the vending of coffee.
I controlled by a second pump also actuated by said electric
i
.
10 group inserted in a closed circuit of the ?rst pump, a lever
stressed by return spring action adapted normally to main
tain 'said valves in discharge position in said hydraulic
The object of the present invention is to provide a
reliable automatic machine adapted particularly to the
cylinders, hook means associated with said lever and
adapted, with said return force or pressure, at the position
preparation and vending of hot coffee.
I
15 of the closing of an electric switch in an electric circuit
There are many machines which have been developed
of said motor and with valves set in working position for
and tested for the above purpose but hitherto it was not
said cylinders of hydraulic servomotors and a group of
possible to guarantee consistent operation and the pro
valves also inserted in said closed circuit for the water
duction of consistently good coffee.
.
for the servomotors, a lever under the stress of a return
A ‘further object of the invention,'therefore, is to pro 20 spring adapted normally to maintain a further valve shut
vide a machine which will ful?ll the rigid demands for
on the out?ow stage period and opens the one on the in
safety, accuracy of operation and endurance.
?ow, a hook device adapted to contact a further lever
According to the present invention a coin operated
biased to position the in?ow valve shut and the out?ow
vending machine for dispensing hot co?ee is charac
valve open, a hydraulic cylinder in which slides a piston
terized in that there is provided an intermittently rotatable 25 of which cylinder one chamber is connected with the out
carrier upon which may be located, at spaced intervals, a
?ow of a second pump by means of a second group of
plurality of strainers adapted to receive in succession a
valves where piston and cylinder are in combination with
predetermined amount of ground coffee, there being
the piston of a further cylinder adapted to retain a
means for moving said carrier in accordance with an oper
strainer in position below a spray device, the piston rod
ating cycle to present successive strainers in position to 30 of the last mentioned piston extending beyond the cylin
receive said ground coffee, to become positioned above
der to contact a lever adapted to control a second group
a coffee receiving cup, and to ‘be inverted for the purpose
of valves when a pressure is present in the servomotor
cylinder to hold the strainer in a leakproof manner ‘below
for re-use.
said spray, a piston rod of said ?rst cylinder projecting
Preferably the vending machine includes a. box-like 35
, from said cylinder to cooperate successively with one
engagement for the opening of the valve for the ?ushing
housing for the dispensing apparatus, a shelf located at
of strainer at one of said stations and for the releasing
about mid-height upon which is assembled a composite
of a lever adapted to release said ?rst group of valves
item for the brewing of coifeet drinks at one side of said
and for engagement with means for the releasing of the
composite item, a con receiving item ?xed on said shelf
to which the coin arrives through a slot formed on the 40 lever adapted to control the second group of valves.
One practical embodiment of such a machine is here
front face of housing, a door at the front of the housing,
of removing used coffee and making the strainers ready
a device to distribute spatula stirrers one at a'time via
after described by way of example, with reference to
the accompanying drawings, wherein:
'
‘
a slide accessible through an opening in the face of the
FIG. 1 is a part sectional front elevational view of a
housing, electric motor drive for pump means, a tank
for puri?ed water and a separate tank for water emulsi 45 machine taken along the line I—I of FIG. 5.
‘ FIG. 2 is a part sectional side elevational view of the
tied with silicones, a container to receive used coffee
machine taken along the line II—II of FIG. 4.
powder, a device to distribute sugar lumps, a distributor
FIG. 3 is a part sectional side elevational view of the
for the cups made from waterproof material, an aperture
through which coffee cups may be removed from the
machine taken along the line III-III on FIG. 4.
housing, said aperture being located below a slanting 50
FIG. 4 is a part sectional plan view of the machine
trough from which coffee is poured into the cup, a com
taken along the line IV—IV of FIG. 3, dot and dash lines
posite device in the form of a rotatable hub intermit
illustrating a door in an open position.
tently movable in a determined direction by- a hooked two
FIG. 5 is a part sectional plan view taken along the
arm lever adapted to be moved by a’ further lever regu
line V——V of FIG. 1.
lated by a pressure piston having a reciprocating travel, 55
FIG. 6 is a detail sectional view of a central device
each movement of the hub being through 90", to enable
a strainer to be located at a predetermined position,
strainer holders at the extremity of arms formed on the
hub, an electro grinder above one strainer station, a dis
tributing spray for coffee brewing water connected with a
hot water tank by means of a normally closed valve
for the machine.
.
‘FIG. 7 is a sectional plan view of part of the mecha
nism of FIG. 6 taken along the line V-II—VII-.
FIG. 8 is a detail section of part of the mechanism
of the machine.
' FIG. 9 is a vertical sectional view of FIG.‘ 8 taken
located at a further strainer station, strainer ?ushing noz
along the line LX'—IX.
zles to ?ush the strainers after each use thereof, an as?
FIG. 10 is a vertical sectional view taken along the
sembly including a hydraulic circuit regulated by a ?rst
pump actuated by said electric motor ‘for the control, of 65 line X-yX of FIG. 8.
'
3,345,933
3
FIG. 11 is a detail sectional view of part of the ma
chine.
FIG. 12 is a sectional plan view of FIG. 11 along line
XII—XII and in the direction indicated.
FIG. 13 is an enlarged detail of FIG. 12 showing the
parts thereof in an alternative position.
FIG. 14 is a schematic illustration showing general
4
vertically on ‘door B and a second trough 151, for the
collection and/or rejection of coins opens above a cup
like basin 152 easily accessible from the outside of the
door B by the way of opening 153 through the door. The
opening 153 is located perpendicularly below the entry
slot 150. Below the ?xture D is a collecting box 154.
On the internal face of the door ‘B approximately mid
way between the top and the base, and to the right of
arrangement of the working elements of the mechanism
the door is located another receptacle 155, also accessible
according to the invention, the parts thereof not being
illustrated in exact positional relationship for the sake of 10 from outside the door B. The receptacle 155 is formed
at the extremity of a slide 157 which latter is ?xed to
clarity.
FIG. 15 is another schematic illustration of the gen
eral arrangement of the working mechanism, speci?c upon
the hydraulic circuit for the machine and is comple
mentary to the illustration of FIG. 14.
Referring to the drawings, A indicates generally a
housing for the mechanism. The housing A is a box-like,
upright structure having a rectangular base provided
with four legs. B denotes generally the front of the
machine, which includes a door E hinged on one vertical
the ‘door B. Above the trough and on the internal face
of the door is arranged a distributing device 158 for
lumps of sugar. The housing is provided with a distributor
for “spatul-as” which may be used to stir the sweetened
coffee. The distributor ‘for the spatulas is generally in
dicated by the reference 159. The stirrers are fed to the
slide 157 as well.
Also attached to the door is a container 160 which holds
a supply of disposable coffee cups which are fed as re
quired to a receiving box 143. On each operation of the
machine a single coffee cup, X, is fed to the box 143 by
means F, well known in the art, and becomes located
approximately midway between the base and the top is
below a discharge spout 27' of device C, which latter is
provided a horizontally positioned shelf-like steel plate
1, which extends over part only of the area of the hous 25 the appliance used for the brewing of coffee. The device
C is immediately hereafter described in detail.
ing A to leave a space in the frontal region whereby when
Referring to FIG. 6, the shelf 1 has secured thereto,
the door B is closed a box-like member 143, internally
by means of shaft 2, a member 3 from which extends a
?xed to the door B does not foul the shelf 1.
radially disposed arm 4. The arm 4 is provided on its
Mounted on the shelf 1, on an axis located vertically
lower face with a cylindrical cavity 5 in which is inserted
in the center of the housing when the later is viewed
a liquid spray dispenser 6, surrounded by a waterproof
from the front but displaced forwardly of the center,
gasket 7. The gasket 7 is ?tted in a recess of the body of
when viewed from the side is the axis of a rotatable
the arm itself and the cavity 5 is connected to a bore 8
spider 144 upon which are mounted four strainers. A
of stem 2 by way of a bore 9 in the arm 4.
device C hereinafter described in detail is also ?xed
Member 3 also is provided with an upper cavity 10
to shelf 1. The strainers are adapted to be located suc
adjacent its upper end.
cessively at one of four stations. Station I is located at
The cavity 10 is diametrically opposite to an arm at
the right of the housing (when viewing the machine
station IV. A housing 11 is connected in a leakproof man
from in front), station II is located in front of the
ner to member 3 and the outer end of housing 11 is pro
machine, station III to the left and station IV at the rear.
Located above strainer station I is an aperture from which 40 vided with a ?anged cover 12, which latter is bolted to
a ?ange 13 formed integral with the housing 11.
the “doser” is connected to an electro-grinder 50, from
side. The open position of the door is indicated by the
dot and dash line on FIG. 4. Within the housing A
which ground coffee is fed. The grinder receives coffee
grains from a receptacle 145 located above it. Below the
Within the housing 11 is located an electrical resistance
14 and a thermostat 15. Thus the enclosed cavity 10‘ forms
a tank for heating brewing water.
strainers at station III is located a handled receptacle 147
The stern 2 is held on the shelf 1 by means of a sleeve
which is disposed at the inside bottom corner of the 45
16, which is integral with the stem 2. The sleeve is pro
housing and serves to collect used coffee grounds.
vided with a ?ange to facilitate its fastening to shelf 1.
The receptacle 147 occupies the bottom left hand
The ‘upper end of the stem 2 is encased in a sleeve 17
corner of the housing (when viewed from the front).
(made integral with it) on which is rotatably mounted
Below the shelf 1 at the right hand bottom corner of
the housing is located a tank 78’ from which puri?ed 50 (yet not axially loose) a hub 18 of spider 144. Sleeve
16 is attached to a crank 19 by means of a knuckle joint.
water hereinafter referred to as second ?uid, is supplied
A lever linkage (see FIGS. 11 and 12) is connected by
to brew the coffee.
I
means of spikes to a ratchet gear 69 on hub 18, for a
At the bottom left hand corner of the housing is
purpose that will be explained later.
located a pumping mechanism composed of an electric
Above arm 4, and coaxial with cavity 5, is located a
motor 75 ‘located centrally between two pumps. The 55
motor is movable as desired to operate respectively pump
76 (for the delivery in a closed circuit coordinated to
the servo-motors which regulate the actuations proper
of the various items of the machine) and also pump 77
which supplies the proper pressure to the water used for the 60
brewing of coffee and also for the ?ushing out of used
strainers.
The pump assembly is shielded by cover 148. The
spray 6, which is mounted on a piston 20. The upper end
of the piston 20 is provided with a stem 21 which in turn
has an extension 22 on its upper end. The extension 22
is of smaller diameter than the stem 21 and is externally
threaded.
The stem 21 is ?tted with a member 23. The member
23 is provided with a seat 23' at its upper end. Between
this seat and a nut screwed on the threaded extension 22
is located a spring 24 adapted to exert downward pressure
cover 148 carries a tank 78 adapted to contain siliconized
water hereinafter referred to- las ?rst ?uid which, during 65 on the member 23 and thus upon the piston 20 (as is
plainly shown in FIG. 6).
operation of the machine is used by pump 76, in a manner
Stem 21 and its extension 22 are bored so as to allow
yet to be explained.
1
FIGS. 2, 4 and 5 illustrate a coin receiving device
(for the purposes hereafter explained) pressurized ?uid
to ?ow in the chamber of cylinder 23 formed on the upper
which serves to actuate the controlling mechanisms which 70 side of piston 20. In use the pressure of the ?uid is su?i
are located on the upper left hand internal side wall of
cient to overcome the spring and thus raise the cylinder
housing A. The ?xture (see FIG. 2) generally indicated
23. ‘The cylinder 23 is provided with an outwardly extend
by the reference D (which ?xture is well known to those
ing rib 25 vwhich extends below and beyond the cylinder
wall and is for-med to extend toward the cylinder axis to
in the art), includes a trough 146 (where the coin is
inserted) opening into a slot 150 which, latter is positioned 75 form an extension 25' having a surface 6’ located opposite
5
3,345,933
to spray 6. The said return-bent extension 25' is provided
with a funnel shaped cavity 26 the lower end of which is
provided with a discharge spout 27'. The hub 18 of the
spider 144 is provided with 4 radial holes 18' spaced at
90° from each other. Each hole 18’ is adapted to receive
the pin 27 of a collar 28. The pins each have a peripheral
groove 28’ of a semi-circular cross-section into which a
small retaining ball 29 can enter. The balls 29 are each
6
lower end of stem 2 and the upper end of cylinder 44,
and, in particular between washer 46 and the upper end
of piston 43) is provided with a peripheral hole 47, which
connects said chamber portion with the outside, a cylin
drical tray 48 is located around it and this latter is pro
vided with a discharge spout 49 as shown in FIG. 6‘.
Mounted on shelf 1, in a manner well known to those
skilled in this art, is located antelectro grinder mill 50
kept in place by a screw 30 radially located in the pin
above which is located a container 145 adapted to receive
and being screwed in the underside of the hub 18. The 10 unground coffee.
hub is also provided with balls 31 which are held in abut
To one side and below the container adapted to hold
ment with their respective pins 27 iby the action of a
a quantity of ground coffee not shown in the drawings
spring 32 retained by a screw 33 which latter is also
and only partially included with reference 50 in FIG. 14
screwed in the hub radially to the pin 27.
is a discharge spout 49. The container is positioned in such
The collar 28 being engaged and actuated by the de 15 a manner that the discharge spout will be in a coaxial
vices hereafter described, will assume four working posi
position over the container in station I.
>
tions which can ‘be seen from FIG. 7. The four positions
Referring now to FIGS. 8, 9 and 10, there is illustrated
are strainer in readiness position marked IV, strainer in
in the position of station III a T-piece 51 which is con
loading position marked I, strainer in brewing position
nected at its base. 51b to shelf 1 by screws and springs
marked II, exhaust of coffee grains and flushing of strainer 20 51'.
>
position marked III.
The upward disposed leg 51a or member of the T-piece
Located within an aperture of collar 28 there is provided
51 is parallel to and displaced to the left of the axis 53'.
a strainer holder 34 adapted to receive a strainer 36, de
signed to be a loose ?t within the holder and to be held
in place by spring 37 (of which only one is shown). The
The upper end of said leg 51a intersects a member 54
which serves as a housing for a gear 52 pivoted to a pin
53.
'
'
a
springs 37 are attached by one of their ends to the collar
Member 54 is aligned with axis of pin 27 of collar 28
and at the other end to a small ?ange provided on the
at ‘station III. Pin 53 extends from the housing 54 to
strainer holder.
wards the collar 28 and terminates in a forked member
The strainer 36 is inserted loose in its holder 34 and is
55 adapted to connect with the edge or rim of said collar
caused to overcome the reaction of the spring by the 30
28,
as shown on FIG. 8. The gear 52 meshes with the
application of slight pressure to cause it to rest against the
toothed portion 56a of rack 56 which can slide longitu
upper rim of strainer holder. The upper end of the
dinally and is supported along its length with the T piece.
strainer is provided with an outwardly turned rim 36'.
On the end 56b of rack 56, which is spaced from the
The height between the rim 36' and the lower edge of
toothed portion 56a thereof, is secured a piston 57 con
the ?lter holder is less than the height between the liquid
spray dispenser 6 and the surface 6' of the extension 25'
of the rib 25 of cylinder 23. The cylinder 23 and the
strainer 36 are arranged so that the strainer is coaxial, in
position II, with cylinder 23 and cavity 5.
’
tained slidably within a cylinder 59. The cylinder 59 is
bolted to leg ‘51a. of T-piece 51 at a location opposite
the member 54.
'
A spring 58 is disposed between the piston 57 and the
leg
51a and normally maintains the piston 57 in a pre
Hole 8 of stem 2 communicates at its upper end with 4.0
upper cavity 10 through a valve 38 whose disc 38" is axial
1y free in the cylindrical chamber 37 of valve 38, said
chamber forming a larger diameter axial extension of the
determined position such that member 55 will be in a
position to engage the edge or rim of collar 28 at station
III.
The chamber 59a formed (to the left in FIG. 10) with
The valve disc 38 is kept normally in a closed ?uid tight 45 in cylinder 59 and divided by piston 57 from the cham
ber 5% houses the spring 58, and is connected with a
position against the end of the hole 8 by a spring 39. '
bore 8 of stem 2.
The hole 8 communicates at its lower end with a cylin
drical cavity which forms a chamber 40. The stem 2 is
provided with an extension Which is housed in the cavity
40.
Within the cavity 40 is freely slidable the valve disc 41,
?uid duct 590 in a manner and for a purpose which will
be explained hereafter.
'
Hydraulic pressure in the cylinder 59 serves, in use,
to squeeze the spring 58 against its bias, moving the rack
50 56 to cause the forked member 55 to rotate through 180°.
This action rotates collar 28 and thus the strainer 36,
the upper end of which is ?tted with a stem 42 of lesser
which is positioned with its open end upwardly directed,
diameter than hole 8 and is freely slidable therein. The
‘is rotated to a position in which it is inverted as' shown
lower face of the valve disc 41 is ?tted with a valve stem
in FIG. 8, the spring 57 maintaining the strainer 36 with
42', which is integral with a piston 43 slidably received in 55 collar
28.
'
,
a cylinder 44. The cylinder 44 is attached in a ?uid tight
manner to the bottom end of stem 2. '
Nozzles 68 (preferably four in number) are provided
to enable the interior of the strainer to be sprayed and
The piston 43 is normally retained in its lower position
in addition a pair of nozzles 61 are provided to enable
by the force of a spring 45, which is located between the
piston and a washer 46. Washer 46 is provided with a 60 the exterior of the strainer to be sprayed as illustrated
in FIGS. 8 and 9. The operating period of the nozzles
central hole for the insertion of stem 42. Washer 46 is
will be referred to below.
attached to stem 2 as shown in FIG. 6.
Referring now to FIGS. 11 to 13, at a location below
The cylinder chamber 44’, located below the piston 43
station IV on the shelf 1 is mounted a cylinder 62 (FIG.
on the opposite side thereof to that Where the spring 45
12) having a piston 63 slidable therein. One side 62a of
is located, is connected to a high pressure pipe, .in a man 65
the
cylinder is connected to a pressure ?uid duct, (in
ner which will be made clear hereafter.
dicated on the left in the drawings). The piston rod 63'
The upper stem 42 of valve 41 is of such length that
of piston 63 is provided (on the side opposite to the duct)
when the valve 41 is fully opened the upper end of stem
with an extension generally indicated by reference num
42 is spaced a predetermined distance from valve disc
ber 64, same extending beyond the cylinder 62 and car
38, while, when the valve 41 is in its closed position, the 70 ries a horizontal cross piece 64', ?tted withv a horizontal
upper end of stem 42 abuts the valve disc of valve 38
member 65 having a hook-like end 66.
thereby raising it up from its seat and so opening said
Crank 19, rotatably mounted on portion 17 of stem 2
valve 38 to connect cavity 10 with cavity 5.
carries on its arm a pivot pin 67 to which is pivotally
The lower end portion chamber 40 (de?ned by the 75 attached a pawl 68. The pawl 68 is adapted to engage
3,345,933
7
any one of the four notches 74 of gear collar 69 to ro
tate same, and also rotate therewith the hub 18. The tail
piece 68’ of the pawl 68 is connected to a spring 70 and
to a moving arm 71 formed integral with the crank 19.
8
an open position despite the pressure of spring 96. This
arrangement has no effect on valve 90.
The in?ow of pump 76 is by way of duct 82, valve 90,
valve 91, duct 98 and ?tting 92, and is connected respec
tively with that side of servomotor cylinder 62 where the
piston comes into contact with spring 72. This arrange
A coil spring 72 externally surrounds cylinder 62 and
abuts (on the right in the drawings) a ?ange member 108
ment serves to control the intermittent movement of the
integral with the cylinder. The other end of the spring
piston which in turn controls the rotation of the four
abutes a ?oating ?ange 10812 which is connected to the
strainer holders 36 and with the chamber of a hydraulic
cross-piece 64' by means of two rods 73.
The piston 63 is normally positioned as indicated in 10 servomotor cylinder 99 (see FIG. 14), within which cyl
inder slides a piston 100. The cylinder contains a spring
FIG. 11 when the cylinder 62 is not pressurized. In this
101. The piston rod of piston 100 extends into the coffee
position, the pawl 68 is located in one of the notches 74
grinder 50. The piston rod normally serves to maintain
and the catch of hook 66 abuts the pivot pin 67.
a coffee outlet duct closed.
When the pressure of the ?uid entering cylinder 62
A further duct from ?tting 92 is attached to a cylinder
causes the piston 63 to move, the member 65 is moved to 15
162 within which slides a piston 161 the piston rod of
the right and the hook 66 thereby is moved to push
which, when operated, serves to release a single spatula
against pivot pin 67. Movement of the hook moves all
for stirring a cup of coffee.
of the other members to cause rotation through 90° of
A still further duct connects member 92 to a cylinder
the collar 69 and the hub 18, this in turn rotates the
20 165 within which is located piston 164 and spring 166.
strainers 36 through 90°.
This arrangement serves to control the dispensing of sugar
When the ?uid pressure is relieved, the action of spring
from container 158. Valve 102 also served by a duct from
72 returns all the members of the assembly just described
?tting member 92, is usually maintained, under the in
to their original positions as shown in FIG. 11. This re
?uence of spring 103, closed. An outlet from the valve
turn movement does not, however, affect gear collar 69
102 communicates with one side of cylinder 23. Below
because the pawl 68, during its return travel, slides on 2.5
cylinder 23, is located the strainer of station II. The valve
the back of the collar 69 until it enters the next notch
102 also connects with one side of cylinder 59 which lat
74 thereof.
ter contains piston 57. As described above the piston 57
serves to control, by the rack and pinion drive, the ?ip
Hydraulic systems
30 ping movement of the strainers at station III. Member 92
may be described as a multi-passaged diverter means.
Referring now to FIG. 15, the circuit of pump 76 is
Valve 102 is ?xed to shelf 1 in a position below, and
a closed circuit, that is, the pump 76 aspires, from tank
substantially in correspondence with cylinder 62 (FIG.
78 ?rst ?uid, that is, water emulsi?ed with silicones, then
11).
compresses the ?rst ?uid at the positions where required.
In theory, all of the ?rst ?uid, after having been utilized, 35 The stem 104 of valve 102 extends beyond the valve
body and there contacts one arm of two armed levers 105
returns to the reservoir 78.
(pivoted at 106), the other arm of the lever is fork shaped
The circuit of pump 77 is an open circuit. The pump
and extends through a slot 105’ in shelf 1 to emerge in
aspires from tank 78' (which can be connected to a water
source, by any known means, say from a water main,
puri?ed drinking water) feeds such drinking water to
the location where used. The major portion of said drink
ing water, hereinafter referred to as the second ?uid, is
used for the brewing of coffee and, the remainder is used
to ?ush the ground coffee out of the used strainers 36 at
position III.
On the circuit of pump 76 (in?ow side) two groups
of valves, indicated by the references R and S (see FIG.
15), are inserted in parallel (for the purposes already men
tioned, and also for the purpose yet to ‘be described).
the path of rollers 107, at points directly opposite to ?oat
ing ?ange 108b.
When piston 63 slides in cylinder 62 to press on spring
72 and thus move to the right the strainers are moved
through 90° to advance them one station. The movement
is in a clockwise direction (see arrow of FIG. 13). During
this movement, rollers 107 contact lever 105 (see FIG.
11 dotted line, 108b’) so as to- cause an angular move
ment of said lever 105. This movement causes the said
one arm to push piston rod 104 to open valve 102 thereby
compressing spring 103, and causing a direct connection
As shown in FIG. 15, the valve group R includes a 5.0 between the in?ow side of pump 76 and the cylinders 23
and 59.
valve 79, through which the in?ow duct 82 of the pump
Referring now to the circuit of pump 77, the in?ow duct
connects with cylinder 44. This cylinder controls the in
109 connects by way of reduction valve 113 with cham
?ow and out?ow of hot water for brewing coffee and ?ow
ber 110 of hydraulic cylinder 80‘, whose other chamber
to the chamber 11 of a cylinder 80 yet to be described.
Valve 79 is normally retained in a closed position by 55 111 is liable to be connected with the in?ow of pump
76 by the way of the group of valve groups.
spring 81. Downstream of valve 79 is located a valve
The chamber 110 is provided with a spring 112 which
83 by way of which duct 82 is connected with return duct
acts on piston 117 in a manner which ‘will be described
84 and thus with tank 78.
below.
A two armed lever 85, pivoted at 86 adjacent the valves
Downstream of the valve 113 is located a second re
and operated by spring 88, which ‘abuts one of its arms, 60
duction
valve ‘114, through which the in?ow of the pump
maintains valve 83 open against the pressure of spring
is put in connection with chamber 10 by way of duct
89. This arrangement does not have any effect on valve 79.
116 which contains the second ?uid used to brew the
The group of valves includes two valves 90 and 91
coffee.
mounted in succession, much ‘as in the manner described
Downstream of valve 114 is located an expansion
65
with reference to valves 79 and 83.
valve 115, through which excess second ?uid is returned
The duct 82 (in?ow of pump 76) is connected by way
to the tank 78', from which it is aspired by suction of
of duct 98 and ?tting 92 with the various hydraulic cyl
pump 77.
inders (auxiliary servomotors) by way of valve 90, which
The in?ow of the pump 77 upstream of the three
is normally held closed by spring 93, while downstream 70 valves 113, 114 and 115 is by way of duct 120, said
of said valve a second valve 91 is provided. The valve 91
duct 120 being connected with the nozzles 60 and 61 by
way of valve 121. This valve is normally held closed by
connects duct 82 with the out?ow duct 84 and thence to
spring 122. Second ?uid from these nozzles 60, 61 is
tank 78. The valve 91 is biased closed by spring 96.
used to ?ush each strainer 36 which its stops at sta
A two armed lever 94 pivoted at 95 is held in posi
tion vby spring 97, so as normally to maintain valve 91 in 7.5 tion III.
3,345,933
10
Referring now to cylinder 80, this provided with a
piston 117 whose piston rod is provided with an exten
remains closed and thus second ?uid cannot pass to cavity
5 or spray head 6.
sion stem 117’ which extends from chamber 110. The
Pump 76, by way of duct 82, pumps ?rst ?uid to open
end of the extension 117’, is provided with a transverse
valve '90 of group S and then, by way of valve 91, and
member 119 from which extends rod 118.
5 duct '98, to ?tting member 92. The return valve 91 re:
The extension 118 co-operates with valve 121 in such
mains shut.
First ?uid from ?tting ‘member 92 also passes to the
hydraulic cylinder 99, where it shifts the piston 100
against the bias of spring 101 and thus permits commu
nication between the coffee container 145, the grinder
50 and, also, opens the discharge spout for ground coffee
to release a predetermined quantity thereof through the
a manner that when extension 118 rises it opens valve
121 by impinging upon the stern 121' thereof and thus
compressing spring 122. The transverse member 119 co
operates, at one side 119a, with arm 123 of a square,
sectioned L-lever 123/124 which is pivoted at 125. The
arm 124 of the L-lever is arranged to be connectable with
lever 94 which latter regulates valve group S. When the
?tting 49 to a strainer which is located at station I.
arm 124 is connected to lever 94 it holds the latter in a
The arrangement is such that the predetermined quan
position such that the spring 97 is compressed. When 15 tities of ?rst ?uid and coffee are so metered that as soon
spring 97 is compressed, valve 90 is open and valve 91
as'the strainer in station I is ?lled with coffee, the ex
is closed. A second L-lever 126/127, pivoted at 128, is
tension 65, integral with piston 63 of cylinder 62, receives
provided adjacent the extension 118 and the arm 127
an impulse by the pressurized ?rst ?uid fed to cylinder
thereof is arranged to abut the lever 94 when the spring
62 through ?tting member 92. The hook 68 of extension
97 is compressed. Also adjacent the extension 118 is a 20 65 contacts pivot 67 ‘and, by way of pawl 68, causes
similar third L-lever 129/130 which is pivoted at 131.
clockwise rotation of hub 18. The strainer located at
The pivot point of lever 129/130 is carried by a mem
station I and thus ?lled is moved to- station II to become
ber 132 secured to stem 134 which extends fro-m a cylin
located between spray 6 and surface 6' of radial exten
der 133. The stem 134 is attached to a piston 137 slidable
sion 25' (see FIG. 6).
>
-
within cylinder 133. A spring 136 Within cylinder 133 25
The ?oating ?ange 108 of cylinder 62 has now reached
normally holds the piston at the upper end of the cylin
the position indicated in FIG. 11 in dotted line and
der 133. Above the piston 137 is a chamber 133' con
nected by means of a conduit 133a to the chamber 23a
of cylinder 23. The cylinder 133 thus functions as a
pressostat.
thus the lever 105 has pivoted on pivot 106 and will
keep an open valve 102. Pressure on piston 23 is there
fore maintained .
30
The arm 130 of the lever 129/130 is arranged to be
connectable With a lever 138 which latter is pivotally
mounted on a member 132 which is secured to stem, 134
in a position in which it can cooperate with lever 85.
The lever 85 serves to regulate the group of valves R.
When the lever 85 is to be moved from its normal posi
tion in which valve 79 is closed and 83 open, to a posi
tion in which valve 79 is open and valve 83 is closed,
the lever system 129/130, 138 is moved by the member
119.
Since pressure remains on piston 23, ?rst ?uid from
pump 76 will cause said piston 23 to lift against the
pressure of spring 24 and the strainer 36 will be carried
‘toward and held tightly against gasket 7 which surrounds
spray head 6.
_
The pressure generated in cylinder 23 is transmitted via
chamber 133' piston 137 of cylinder 133 by duct 133a.
Piston 137 thus slides, in cylinder 133 (the pressostat)
against the pressure of spring of spring 136 and thus the
member 132, which is integral with the stem 134, also is
40 moved. Movement of member 132 causes small lever 138
'
A spring 139 is inserted between arm 129 and an abut
ment 140 on member 132. The spring normally holds the
lever 130 in abutment with the lever 138 as shown in
to bear against lever ‘85, rotating same around pivot 86
and thus regulating group of valves R in an anticlockwise
manner; Movement of lever 85 overcomes the bias of
spring 88. The lever 85 is held in the position just referred
to until such time as it becomes disengaged by the lever
the lever 94 and substantially‘below the spring 97. When
138 in a manner disclosed below, that is ‘in response to
the coil of the solenoid is energized by the insertion of
the movement of member 119.
a coin into the device D, the core 141' is moved to oper
When the conditions just referred to apply, valve 79 is
ate the valve group S.
open and 83 is shut. Pressurized ?rst ?uid from pump 76
The coffee making machine according to the invention 50 now passes to cylinder 44 by way of duct 82, valve '79,
operates in the following manner:
~ '
the upper end of valve 83 and conduit 82a.‘Since valve
A coin is dropped into the slot 150 and, assuming the
83 is closed, ?rst ?uid cannot return to tank 78. Piston 43
coin is not rejected and returned to the depositor through
is now moved by the ?rst ?uid ‘against the bias of spring
the chute 151 to the basin 152, the dispensing operation
45, thus closing discharge valve 41, moving stem- 42 and
commences.
55 opening valve 38 to allow hot second ?uid, to pass from
The core 141' of the solenoid 141 compresses spring
chamber 10 through pipe 9 to the cavity 5 and spray head
97 which causes the lever 94 to rotate clockwise on its
6. As stated above, the strainer 36 has been ?lled with
pivot 95 from the position indicated on FIG. 15. The arm
powdered coffee grains at station I and, at station. II has
127 of ilever 127/128 becomes engaged with the lever
been pressed against the gasket 7 surrounding spray
94 to maintain it in the position to which it has been 60 head 6.
The second ?uid is forced through the coffee grains
moved by the core 141 after the electrical circuit has
and thus infused coffee now passes from the strainer 36
been deenergized. Energization of solenoid 141 causes
to funnel 26 and trough 27' to ?ll the cup which is lo
switch 142 to close to energize electric motor 75, thus
cated below the strainer 36 within the chamber 143.
actuating pumps 76 and 77.
The hydraulic servomotors 161/162 and 164/165 have
Pump 77 pumps second ?uid into duct 120, and since
also been actuated and thus sugar has been dispensed to
valve 122 is shut, the second ?uid passes, via valve 113
basin 155 together with a spatula for stirring the coffee.
into upper chamber 110 of cylinder 80 via duct 142'.
FIG.
15.
.
_
The core 141' of a solenoid 141 is located adjacent
contemporaneously, pressurized ?rst ?uid from pump
Pressure in chamber 110 causes the piston 117 to move
and second ?uid enters valve 83‘ via duct 142'. Valve 70 76 has passed by way of duct 142', to reach the lower
chamber 111 of hydraulic cylinder 80, and owing to the
79 is closed and duct 84 leads to tank 78. Second ?uid
fact that the speci?c pressure created is generally greater
in valve 113 also-serves to open valve 114 and thus sec
than that present in upper chamber 110 (due to differences
ond ?uid is fed, under pressure, via duct 116, to chamber
in the surface areas of the pistons) piston 117 moves up
10 in which it is heated by resistance heater. 14 to the
wardly and thus member 119 releases arm 123 of L-lever
temperature selected for brewing the coffee. Valve 38 75 123/124 which, actuated by its return spring 97 then ro
3,345,933
1l
tates in an anticlockwise direction to contact, by means
ceiving and handling means, ?rst switch means, including
of its hook end, the extremity of lever 94. The lever 94 is
maintained in the lowered position by the action of over
bearing arm 127 of lever 126/ 127.
In the meantime, while the strainer on station II remains
in position, valve 102 is open and thus pressurized ?rst
posit in said coin receiving and handling means; ?rst and
a lever actuating mechanism, operable upon a selected
lever on being energized by the acceptance of a coin de
second ?uid system, said ?rst ?uid system carrying water
for brewing and rinsing purposes and said second ?uid
system carrying hydraulic ?uid, said ?rst and second
?uid systems including ?rst and second pumps operable
to move said respective ?uids, a motor energized upon
duction of pressure in the cylinder 59 against the piston 10 operation of said selected lever to place the said ?rst
and second pumps in operative condition, carrier means
57 takes place.
arranged for step-wise rotation through a series of oper
Piston 117 during its upward movement together with
ating stations, a plurality of strainers carried by said car
its extension 118 engages stem 121' to open valve 121
rier means and arranged to rotate therewith through said
thus allowing pressurized second ?uid originating from
pump 77 to pass through nozzles 60 and 61 simultaneous 15 series of operating stations, said series of operating sta
tions comprising a loading station, a brewing station, a
ly to ?ush opposite sides of the inverted strainer 36 which
discharge and rinsing station and a ready station, each
is located at section III (as shown in FIGS. 8 and 9).
station arranged spaced substantially 90” relative the
Further upward movement of piston 117 causes the
others, a plurality of hydraulically operated mechanical
member 119 to abut arm 126 of lever 126/127 which
under the action of a return spring causes it to disengage 20 systems each having a speci?c function and arranged to
be operated by the ?ow of respective ?uids from said
from lever 94. Lever 94 maintains its position however
?rst and second ?uid systems, said mechanical systems
since it is engaged by the hook end of arm 124 of lever
comprising dosing means for supplying metered quantities
123/124. The arm 124 is ‘maintained in position by a re
of ground coffee to a strainer as same is disposed at the
turn spring 97.
As the member 119 reaches the upper limit of its move 2.5 loading station, translating means for moving the carrier
in 90° stepwise increments, temporary inverting means
ment it abuts arm 129 to rotate it in a clockwise direction
operable upon the strainer disposed at the discharge and
against the bias of spring 139. This movement causes dis
rinsing station, cup-dispensing means to locate a dispos
engagement of lever 138 and thus the lever 85 of valve
able cup immediately below that strainer located at the
group R can return to its original position under the in
3,0 brewing station, auxiliary implement and condiment dis
?uence of spring 88.
pensing means, distributing means having a delivery end
Valve 79 is now shut and valve 83 is open. Cylinder 44
control valve means, and including heating means for
is in discharge condition through open valve 83 and ducts
feeding hot ?uid under pressure of said ?rst ?uid system
84' and 84, and the ?ow of ?rst ?uid is arrested by valve
to the strainer at the brewing station, sealing means for
79 since this valve is closed.
Valves 38 for the in?ow of pressurized water to the 35 effecting a sealing engagement of said strainer at the brew
ing station with said distributing means at the delivery
strainer is closed and the discharge valve 41 is open. The
end thereof, said sealing means comprising a hydraulically
second ?uid eventually left in the strainer re?uxes back
operated cylinder operated by the second ?uid system,
through bores 9 and 8, through holes 47 to the spout 49'
?rst plural valve means for controlling ?ow of water in
(see FIG. 6) for discharge.
said ?rst ?uid system, second plural valve means for con
The ?ow of coifee to the disposable cup is discontinued.
trolling ?ow of hydraulic ?uid in said second ?uid sys
Due to the closing of valve 79 and the opening of valve
tem, plural pivoted-lever means, including said selected
83, the pressure has dropped in chamber 111. High pres~
lever, multi-passaged diverter means arranged between
sure is present in chamber 110 and in consequence piston
?uid acting against piston 57, against the pressure of spring
58, has caused the strainer in station III to be inverted.
The strainer is maintained in that position until the re
the second plural valve means and selected ones of the
117 is pushed downwardly by the second ?uid and the
45 said hydraulically operated mechanical systems, and said
bias of spring 112.
plural pivoted lever means, including said selected lever,
Downward movement of the piston 117 moves the ex
operable to direct ?ow of hydraulic ?uid selectively to
tension 118 of the valve 121 which closes under the in
said selected ones of said hydraulically operated mechani
?uence of the spring 122 thus preventing second ?uid
cal systems via said diverter means, said selected ones of
from reaching nozzles 60 and 61. The member 119 re
said mechanical systems being said dosing means, said
leases the lever 129/ 130 which, under the bias of spring
translating means, said implement and condiment dispens
139, resumes its initial position.
ing means, said temporary inverting means and said seal
Finally the member 119 abuts the arm 123 of lever
ing means, said ?rst pump operable to direct water through
123/124 to release lever ‘94.
said ?rst plural valve means simultaneously to the tank
Electric switch 142 opens, motor 75 stops and this
of said distributing means for heating thereof and to con
causes the hydraulic servomotors to stop.
5.5 trol
valve means to enable delivery thereof, a hydraulic
The disposition of parts is such that valve 91 of the
control cylinder which includes a spring biased piston
group S is open and for this reason the duct 99' which
feed cylinder 99 of the coffee dosing grinder 50 and the
one, duct 62a’, controlling the intermittent rotation of
reciprocable therein and dividing said cylinder into ?rst
163, 165 and their pistons, 161 and 164 which control
plural pivoted-lever means, including said selected lever,
to return said selected hydraulically operated mechanical
and second compartments, a trip lever ridable on said
strainers 36 are connected to discharge. The cylinders 60 piston exterior of said cylinder and operable upon said
the distributing of sugar and the stirring spatulas are re
turned under the in?uence of the corresponding springs.
Also, cylinder 23 which holds the strainers in station II
is returned to its initiate condition.
The cylinder 59 used to invert the strainers at station
III, is still open to valve 102. Toward the completion of
the return travel of piston 62, the valve 102 is closed. The
strainer of station 11 is now free to move to station
III, the strainer at station III, during the return ‘travel of
the piston 63 is righted and is ready for movement to
station
The cycle is now ready to be repeated.
In summary, the invention provides a coin operated
65
systems to their initiate condition subsequent to the elapse
of a predetermined time period and, simultaneously to
act upon said control valve means of the distributing
means whereby to divert a portion of said water of said
?rst ?uid system, a ?rst group of nozzles positioned be
low the carrier means and aligned with the inverted strain
er at the discharge and rinse station and a second group
of nozzles arranged above said inverted strainer at said
discharge and rinse station, said nozzles receiving said
diverted portion of said water of said ?rst ?uid system
simultaneously, whereby deposit of a coin results in con
current energization of said ?rst and second pumps and
coffee beverage vending machine which includes coin re 7.5 the actuation of all systems.
13
3,345,933
14
What I claim is:
1. A coin operated automatic vending machine to brew
and dispense hot coffee in individual cups, actuated only
der to cooperate sucessively with one engagement for
the opening of the valve for the ?ushing of strainer at
one of said stations and for the releasing of a lever
by the insertion of a coin in a slot of a box-like housing .
adapted to release said ?rst group of valves and for en
for the dispensing apparatus, said housing having a ?oor 5 gagement with means for the releasing of the lever adapt
and a shelf located in the housing at about mid-height
ed to control the second group of valves.
thereof, a composite assembly disposed on the shelf for
2. A coin operated automatic vending machine as
the brewing of coffee drinks from one side of said assem
claimed in claim 1 including a pump out?ow conduit to
bly, a coin receiving assembly ?xed on said shelf, a door
said second group of valves, a servomotor circuit in said
at the front of the housing carrying a device to distribute 10 out?ow adapted when operative to close the discharge
stirrers one at a time via a slide accessible through an
opening in the face of the housing, electric motor drive
for pump means adapted to be energized by the deposit
spout for the ground coffee grains, of the doser-grinder,
said discharge spout ‘being co-axial with a strainer at
one station, a servomotor cylinder adapted to control the
intermittent rotation of said hub by means of a valve
for hydraulic ?uid, a container to receiveused coffee 15 normally held shut by the action of a spring, said servo
powder, a sugar distributing device, a cup distributing de
motor cylinder piston being arranged to cause the strainer
‘vice, an aperture in the door for removal of a ?lled cup,
at said station to be held against said spray, a further
of a coin, a tank for puri?ed water anda separate tank
2. slanting trough leading from the composite device to
the cup for ?lling thereof, said composite device for the
‘loading, brewing, rinsing and storage operations of said
machine comprising, a rotatable hub intermittently mov
able in a determined direction by a hooked two arm
servomotor cylinder adapted to operate the inversion
mechanism for said strainers at a further station, a
20 lever operated valve operably associated with a ?oating
piston of that hydraulic servomotor which is adapted to
rotate said hub.
3. A coin operated automatic vending machine ac
lever adapted to be moved by a further lever regulated
by a pressure piston having a reciprocating travel, each
cording to claim 1 in which the control lever of said ?rst
movement of therhub being through 90° to enable 'a 25 group of valves is actuated by means of the core of a
strainer to be located at a predetermined position, strainer
solenoid, the coil of which becomes energized upon the
holders at the extremity of arms formed on the hub, a
closer electro-grinder above one strainer station, a dis
tributing spray for coffee brewing water connected with
a water receiving and heating tank by means of a nor
mally closed valve located at a further strainer station,
strainer ?ushing nozzle to flush the strainers after each use
thereof; an assembly including a ?rst closed hydraulic cir
cuit regulated by a ?rst pump actuated by said electric m0
tor for the control of all of the hydraulic servomotor cylin
ders needed and coordinated by the different functions of
said composite device, a second hydraulic'circuit adapted
to receive puri?ed water, and controlled by a second
pump also actuated by said electric motor simultaneous-.
1y as the ?rst pump, said second‘ pump being arranged
to furnish puri?ed water at a selected pressure to said
insertion of a coin.
4. A coin operated atuomatic vending machine accord
ing to claim 1, characterized by the insertion of a valve
between said receiving and heating tank used for brew
ing the coffee and the distributing spray, the valve being
coaxial with the discharge valve of the distributing spray,
a control spring maintain the valve in a closed position
and a second valve actuated by servomotor cylinder
and normally maintained in the open position, the ar
rangement being such that as the ?rst valve opens the
second valve closes, and vice versa.
5. A coin operated automatic vending machine, accord
ing to claim 1, characterized in that said hub is provided
with four radial holes set at 90° spacing on each one of
which the pivot of a collar can be introduced whilst allow
receiving and heating tank and also to furnish puri?ed
ing free rotation, means being provided to retain the hub
so as to be engaged and disengaged intermittently by the
through a duct and valve, a‘?rst valve group‘ inserted in p
collar being inserted into a strainer holder and spring
the closed circuit of the ?rst pump, a second valve group 45 means axially to hold said strainer holder in place.
inserted in the circuit of the second pump, a spring biased
6. A coin operated automatic vending machine accord
lever stressed by return spring action adapted normally
ing to claim 1 in which the leakproof positioning of the
to maintain said valves in discharge position in saidhy
strainer against the gasket at one of said stations is
"draulic cylinders, hook means associated with'said lever
‘achieved by providing a seating for said gasket around
and adapted, with said return force or pressure, to re 50 the periphery of a member provided with a cavtiy in which
tain ‘said lever at the position of the closing of an elec
is locatedthe distributing spray, said cavity communicat
ing with the heating and receiving tank and said cavity
tric‘ switch in an electric circuit of said electric motor
being coaxial with the coffee dispensing station of the
drives and with the ?rst and second group of valves set in
working position for the group of valves inserted .in. , strainer, the upper face of the cavitated member forming
a cylindrical means coaxial with which is a hydraulic
said ?rst closed hydraulic circuit and for the said cylin
servomotor cylinder, the piston of which is retained in po
ders of'said hydraulic servomotors, a lever under the
sition by a return spring.
stress of a return spring adapted normally to maintain
one of said'?rst group of’ valves shut onqthe out?ow
7. A coin operated vending machine as claimed in claim
stage period and open another one of said ?rst group
1 in which the strainer is located within a funnel-like de
of valves on the inflow stage period, a hook device adapt
vice held below the spray and a’ pouring spout integral
ed to contact a further lever biased to position the in?ow
with the funnel-like member.
valve shut and outflow valve open, a hydraulic‘control
8. A coin operated automatic vending machine accord
cylinder having a piston slidable therein, one chamber
ing to claim 5 characterized in that at one station there
of said hydraulic control cylinder being‘connected with I '~ is provided a fork piece adapted to receive the rim of the
the out?ow of the second pump by means of the second 65 collar, the fork being attached to the pinion of a servo~
water for the ?ushing of strainers after each use thereof
group of valves, the said piston and, cylinder being in
combination with the piston of a further cylinder adapted
motor operated rack and pinion mechanism, the arrange
ment being such that the strainer may be inverted.
to retain a strainer in position below the distributing
9. A coin operated automatic vending machine includ
spray, and the piston rod of the last mentioned ‘piston ex
ing a housing having therein a shelf-like horizontal plate
70
tending beyond the cylinder‘ thereof to contact a lever
upon which is mounted a composite device for the brew
adapted to control the second group of valves when a
ing of coffee, there being above the shelf a coin receiving
pressure is present in the servomotor'cylinder to hold the
mechanism to which coins pass along a chute, a dispenser
strainer in a leakproof manner below said spray, a piston
of spatula-stirrers adapted to release one stirrer each time
rod of said ?rst cylinder projecting from said ?rst cylin 75 the machine is operated, there being below the shelf, a
3,345,933
16
motor, ?rst and second pumps operable by said motor, a
?uid, said ?rst and second ?uid systems including ?rst and
?rst reservoir for puri?ed water and a second reservoir
for ?uid which has been emulsi?ed with silicones and a
second pumps operable to move said respective ?uids, a
motor energized upon operation of said selected lever to
bucket to receive used coffee powder; and the interior face
of a hinged front part of the housing mounting a device
place the said ?rst and second pumps in operative condi
tion, carrier means arranged for step-wise rotation through
a series of operating stations, a plurality of strainers carried
to dispense individual lumps of sugar with each drink
and a device for the distribution of cups which are ar
by said carrier means and arranged to rotate therewith
ranged to fall into a niche located below a spout from
through said series of operating stations, said series of
operating stations comprising a loading station, a brewing
which the coffee is adapted to be dispensed; a composite
device in the form of a rotating hub moving intermittently 10 station, a discharge and rinsing station and a ready station,
each station arranged spaced substantially 90° relative the
in a determined direction by steps of 90° through four
others, a plurality of hydraulically operated mechanical
operating stations, said hub carrying four arms set at right
systems each having a speci?c function and arranged to
angles to each other, each arm carrying a strainer of a
be operated by the ?ow of respective ?uids from said ?rst
capacity sufficient to hold a requisite quantity of powdered
coffee, said four operating stations for the strainers in 15 and second ?uid systems, said mechanical systems com
prising dosing means for supplying metered quantities of
cluding a grinder-doser station, a brewing station includ
ing a water spray for supplying water to the coffee, con
nected with a pressurized hot water tank by way of a nor
ground coffee to a strainer as same is disposed at the load
be actuated to allow water to pass to the used strainers
for washing same, a ?rst valve group located in a closed
station with said distributing means at the delivery end
thereof, said sealing means comprising a hydraulically
ing station, translating means for moving the carrier in
90° stepwise increments, temporary inverting means oper
mally closed valve, a rinsing station including nozzles for
the washing of both sides of used strainers and a ready 20 able upon the strainer disposed at the discharge and rins
ing station, cup-dispensing means to locate a disposable
station to hold a clean strainer for transfer to the doser
cup immediately below that strainer located at the brewing
station, a normally closed ?rst hydraulic circuit includ
ing hydraulic servomotors, controlled by said ?rst pump,
station, auxiliary implement and condiment dispensing
a second hydraulic circuit fed with drinking water and
means, distributing means having a delivery end control
controlled by a second pump actuated simultaneously with 25 valve means, and including heating means for feeding hot
the actuation of the ?rst pump and arranged to supply
?uid under pressure of said ?rst ?uid system to the
water at the required pressure to the hot water tank for
strainer at the brewing station, sealing means for effect
brewing the coffee, a valve normally closed adapted to
ing a sealing engagement of said strainer at the brewing
circuit of the ?rst pump, a ?rst spring loaded lever adapted
operated cylinder operated by the second ?uid system,
to maintain the valves in a discharge position to supply
?rst plural valve means for controlling ?ow of water in
said silicon emulsi?ed ?uid to the hydraulic cylinders of
said ?rst ?uid system, second plural valve means for con
the servomotors, a hook-like pivoted member adapted to
trolling ?ow of hydraulic ?uid in said second ?uid sys
retain the lever in position to release it to reverse the 35 tem, plural pivoted-lever means, including said selected
valves, an electric circuit for said electric motor, includ
lever, multi-passaged diverter means arranged between
ing a switch closed on deposit of a coin in the machine
the second plural valve means and selected ones of the
and said electric motor adapted to operate to direct a sup
said hydraulically operated mechanical systems, and said
ply of said ?uid to said valves and to a second valve group
plural pivoted lever means, including said selected lever,
associated with said closed ?uids circuit for the servo 40 operable to direct ?ow of hydraulic ?uid selectively to said
motors, a spring loaded lever arranged to maintain a valve
selected ones of said hydraulically operated mechanical
in a normally closed position on the out?ow circuit and
systems via said diverter means, said selected ones of said
to maintain a further valve in a normally open position in
mechanical systems being said dosing means, said trans
the in?ow, a second hook-like member arranged normal
lating means, said implement and condiment dispensing
ly to hold said valves in their normal positions, a hy
means, said temporary inverting means and said sealing
draulic cylinder including a piston, one chamber of the
means, said ?rst pump operable to direct water through
cylinder being connected with the out?ow of the second
said ?rst plural valve means simultaneously to the tank
pump to supply the water for brewing the beverage, the
of said distributing means for heating thereof and to the
other chamber being connected with the discharge, or
control valve means to enable delivery thereof, a hydraulic
with the out?ow of the pump of the closed circuit of the
control cylinder which includes a spring biased piston re
servomotor cylinders, there being also provided a cylin
ciprocable therein and dividing said cylinder into ?rst and
der having a piston having with a piston rod extending
second compartments, a trip lever ridable on said piston
from the cylinder and combined therewith, a servomotor
exterior of said cylinder and operable upon said plural
cylinder which controls the pressure applied to hold a
pivoted-lever means, including said selected lever, to re
strainer in position to receive puri?ed water for infusing
turn said selected hydraulically operated mechanical sys
the coffee to brew same, the piston rod serving also to
tems to their initiate condition subsequent to the elapse
control the sequence of operation of the valves.
of a predetermined time period and simultaneously to act
10. A coin operated automatic vending machine ac
upon said control valve means of the distributing means
cording to claim 5 in which, between the cylinder and
the pump which pressurizes the water used for brewing of 60 whereby to divert a portion of said water of said ?rst
?uid system, a ?rst group of nozzlzes positioned below the
coffee, there is provided a reduction valve adapted to con
trol the water pressure of water feed for brewing.
11. A coin operated automatic vending machine ac
cording to claim 1 in which the second pump used to
carrier means and aligned with the inverted strainer at
the discharge and rinse station and a second group of
nozzles arranged above said inverted strainer at said dis
pressurize water used for the infusion, operates on only 65 charge and rinse station, said nozzles receiving said di
puri?ed water and the ?rst pump operates only on water
verted portion of said water of said ?rst ?uid system simul
which has been emulsi?ed with silicones.
taneouSly, whereby deposit of a coin results in concurrent
12. A coin operated co?'ee beverage vending machine
energization of said ?rst and second pumps and the actua
which includes coin receiving and handling means, ?rst
tion of all systems.
switch means, including a lever actuating mechanism,
13. The machine as claimed in claim 12 in which said
operable upon a selected lever on being energized by the
hydraulic ?uid is siliconized water and said ?uid systems
acceptance of a coin deposit in said coin receiving and
handling means; ?rst and second ?uid systems, said ?rst
are maintained independent and unmixed.
?uid system carrying water for brewing and rinsing pur
poses and said second ?uid system carrying hydraulic 75
(References on following page)
3,345,933
17
18
References Cited
3,143,058
8/ 1964
Janm'n ____________ __ 99-—283
------------- -
1,390,008 ‘9/1921 Arduino ___________ __ 99-—289
2,014,325 9/1935 Grillo ____________ __ 99—289
2,558,522 6/1951 Knapp ____________ .._. 99-283
2,599,455 6/1952 Husemann ________ __ 134-—131
2,879,811 3/ 1959 Parraga ___________ __ 99-283
2,910,928 11/1959 R t ______________ __ 99—289
2,955,527 10/1960 Cgnains et aL ______ __ 99‘__289
3,055,286 9/1962 Valente ___________ __ 99—289
FOREIGN PATENTS
5
1,184,141
2/1959
506,258
509,257
509,543
12/1954
1/ 1955
1/1955
France.
Italy.
Italy.
Italy.
-
WALTER A, SCHEEL, Primary Examiner.
m S. P. FISHER, Assistant Examiner.
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