US 20070298953A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2007/0298953 A1
Gavillet et al.
(54) DRINK PREPARING MACHINE WITH
(43) Pub. Date:
(30)
Dec. 27, 2007
Foreign Application Priority Data
HOLDING AND WARMING DEVICE
Jun. 15, 2006
(76)
Inventors:
Gilles Gavillet, Ursy FR (CH);
Peter Moria walpersw? (CH);
Jurgen Kristlbauer, Zollikofen
(CH)
(EP) ................................ .. 061155123
.
.
.
.
Publication Classi?cation
(51) Int. Cl.
3313 1/90
(52)
(2006.01)
US. Cl. ..................................................... .. 493/108
Correspondence Address:
WINSTON & STRAWN LLP
(57)
PATENT DEPARTMENT
A device and method for Warming a cup in a machine for
1700 K STREET, N.W.
WASHINGTON, DC 20006
(21) Appl. No.:
11/763,114
(22) Filed:
Jun. 14, 2007
ABSTRACT
preparing a hot drink or beverage involving transmitting by
conduction a part of the surface heat of the heating body to
a cup holder. The heating body is also used to heat Water in
the machine. The device and method also at least partially
dampen a vibration transmissible by the heating body to the
surface of the cup holder.
Patent Application Publication
Dec. 27, 2007 Sheet 1 0f 2
US 2007/0298953 A1
Patent Application Publication
Dec. 27, 2007 Sheet 2 0f 2
US 2007/0298953 A1
kwu.
Eqi.-I.-
US 2007/0298953 A1
[0001]
DRINK PREPARING MACHINE WITH
HOLDING AND WARMING DEVICE
Which comprises transmitting at least a part of surface heat
generated by a heating body by conduction to a cup holder
With the heating body also used to heat Water in the machine.
BACKGROUND
For this, at least on thermal control means may be interposed
betWeen the cup holder and heating body so that for a
The present invention relates to drink preparing
machines such as co?‘eemakers. It particularly relates to an
improvement for preWarming cups to a certain controlled
temperature.
[0002]
Dec. 27, 2007
Coffeemakers possessing a holder for supporting
objects such as cups or other utensils (mugs, spoons, etc.)
and preWarming them already exist. The main advantage,
once the drink has been served by the machine, is that they
reduce the heat exchange betWeen the drink and the cup and
therefore sloW the rate of decrease of the temperature of the
drink in the cup.
[0003] Existing machines usually use a cup holder linked
particular temperature of the heating body, the cup holder
temperature is controlled to a loWer value.
[0008]
Which comprises transmitting some of surface heat gener
ated by a heating body by conduction to a cup holder While
at least partially damping vibrations transmissible by the
heating body of the cup holder. For this, at least one
vibration damping means my be interposed betWeen the cup
holder and heating body to dampen vibrations therebetWeen.
BRIEF DESCRIPTION OF THE DRAWING
FIGURES
to a Warming device. One method is to use a simple heating
resistor independent of the machine’s main Water-heating
body. This method generates an increase in the poWer
consumed by the machine and also necessitates a separate
electric control. A second method is to at least partially
Warm the cup holder by using the heating body used to heat
the Water from Which the drink is made. The tWo methods
can also be used in combination.
[0004] HoWever, adapting the heating body itself for the
“cup-Warming” function (eg a thermoblock or a boiler to
heat the Water) can create problems. One problem is that the
heating body reaches very high temperatures of around
90-1000 C. and therefore could cause burns in the event of
contact With the cup Warmer. Another problem is that the
The invention also relates to a method for Warming
a cup in a machine for preparing a hot drink or beverage,
[0009] Certain embodiments Will be detailed Without
implying any limitation With reference to the ?gures Which
folloW:
[0010] FIG. 1 is a schematic vieW, partly in cross-section
of a machine for preparing drinks according to the invention;
[0011] FIG. 2 is a schematic front vieW, partly in cross
section shoWing a detail from FIG. 1;
[0012]
[0013]
[0014]
[0015]
FIG.
FIG.
FIG.
FIG.
3 is a detail vieW of a second embodiment;
4 is a detail vieW of a third embodiment;
5 is a detail vieW of a fourth embodiment; and
6 is a detail vieW of a ?fth embodiment.
Water Which is passed through the heating body transmits
vibrations from the Water pump inside the machine (this may
be a piston pump or any other component that generates
vibrations). These vibrations may be transmitted to the
holding plate in the event of direct contact and shake cups,
drip trays or any other object placed on the machine (or even
move them around), producing an annoying noise When the
machine is in use. Thus, improvements in these type devices
are desired.
SUMMARY OF THE INVENTION
[0005] The invention noW overcomes these problems. For
this purpose the invention relates to a machine for preparing
drinks or beverages, especially hot drinks such as coffee,
milk, hot chocolate or tea. This machine includes a holding
and Warming device that comprises at least one heating body
and at least one holding part or plate for receiving at least
one cup. The heating device is arranged to transmit the
Warming heat to the holding plate by conduction. Also, the
heating body is connected to the ?uid system of the machine.
DETAILED DESCRIPTION OF THE
PREFERRED EMBODIMENTS
[0016]
The expressions “holding and Warming device” or
“cup Warmer” are used Without distinction in the description
Without being limited to cups in the strict sense, and other
objects can be Warmed by the device (such as mugs,
containers of liquid or foam, spoons, etc.).
[0017] The phrase “heat-control means” is used to indicate
any device or combination of devices for transmitting and
controlling the transfer of heat from the heating body to the
cup holder in such a Way that the temperature of the cup
holder reaches the level required for the desired application,
eg avoiding the risk of burns When touching the cup holder
and/or the cups themselves or in such a Way to give the cup
Warmer and/or the cups themselves a temperature suitable
for keeping the liquid at an ideal temperature for consump
tion.
[0018]
The expression “damping means” is intended to
Such a system includes a pump for transporting the ?uid
around the machine. In accordance With one of the inventive
principles, a heat-control and transmission means is in
contact With the heating body This means also forms or is
being connected to a damping means for reducing the
denote any device or combination of devices capable of
signi?cantly reducing vibrations such as hydraulic or
mechanical vibrations from the pump.
[0019] The heat-control means and the damping means
may be directly connected or preferably be formed by one
vibrations transmitted by the pump to the heating body.
[0006] In such a machine, heating body is a heating means
and the same means, so as to simplify the structure and keep
costs doWn.
as described herein. The heat control means preferably is or
is connected to damping means as disclosed herein so that
means and the damping means are a single dual-function
[0020]
In a ?rst possible embodiment, the heat-control
the heating body or conductive heating means does not
receive vibrations from the pump or ?uid system.
[0007] The invention also relates to a method for Warming
heat-control and damping means.
a cup in a machine for preparing a hot drink or beverage,
the heating body and in contact, on the other hand, With the
[0021]
In this embodiment, the heat-control and damping
means may be interposed in contact, on the one hand, With
US 2007/0298953 A1
cup-holding part. The heat-control and damping means is
then formed from a material that is both heat-conducting and
Dec. 27, 2007
[0030] The method involves interposing a thermal control
means capable of maintaining the surface of the cup holder
vibration-damping.
at a temperature of around 45 to 65° C., from a temperature
[0022]
of operation of the heating body Which may be above 80° C.
[0031] Also, in combination With the above or indepen
dently thereof, the method involves damping all or some of
the vibrations transmissible from the heating body to the cup
The heat-control and damping means is preferably
an elastic or viscoelastic material. A preferred choice is an
elastomeric or silicone material.
[0023]
For example the heat-control and damping means
may be at least one block or pad interposed betWeen the
heating body and the cup holder. The means possesses a total
surface area of transfer of betWeen 0.5 and 3 cm2, preferably
betWeen 1 and 2 cm2, and a thickness of betWeen 0.1 and 2
cm. Naturally, the dimensions of the transfer surface area
and thickness may be calculated or obtained by experimen
tation by a person skilled in the art Without any great
dif?culty, to suit the materials and in particular the coeffi
cients of heat transfer and of damping, of the contact
surfaces and of the ranges of temperature of operation of the
heating body and of the desired range of temperatures of the
cup holder.
[0024]
The cup-holding part may be made of plastic or
metal. It Will preferably be a metallic material such as
aluminium or an aluminium alloy in order to transfer the
temperature evenly across the Whole of the surface of the
support and thus ensure a constant temperature regardless of
Where the object is stood.
[0025] In one alternative, the heat-control and/or damping
means is an integral part of the cup holder, since it is possible
for the cup holder itself to be made of one or more damping
materials such as a material having elastic or viscoelastic
properties. In this version the holder can be made of, for
example, a multilayer comprising at least one heat-conduct
ing layer to support the cups such as a metallic or hard
plastic layer, and at least one underlayer of elastomer or
silicone material. The underlayer may then be in direct
contact With the heating body.
[0026] In another possible embodiment, the heat-control
and/or damping means may be formed by a multitude of
discrete contacts such as spikes or ribs With the heating
body; at least some of the them being formed of an elastic
or viscoelastic material. This Will reduce the area of contact
betWeen the heating body so as to reduce the transfer of heat
but also in order to damp the vibrations coming from the
heating body.
holder. For this purpose the method involves interposing at
least one vibration damping means betWeen the surface of
the cup holder and the heating body.
[0032] The method involves having the heat-control and
damping means as either the same means or separate means.
For this, at least one vibration damping means. As FIGS. 1
and 2 shoW in a ?rst example, the machine according to the
invention. This machine comprises a casing 1, a breWing
module 2 in Which the drink is breWed from an ingredient
such as coffee, a Water tank 3 and at least one cup holder 4
forming part of a “cup-Warming” device described in detail
later.
[0033] The breWing module may be designed to receive
and breW, dissolve or dilute any ingredient contained in a
package such as a closed capsule containing ground coffee
or a plastic and/or aluminium sachet or sachet-?lter or a
simple ?lter. The module may also be designed to receive the
ingredient directly Without packaging and then to produce
the drink. The module ends in an outlet 6 from Where the
drink is dispensed.
[0034] The cup holder 4 may occupy a single plane or a
single holding surface or occupy several levels or several
surfaces as shoWn in FIGS. 3 and 4. It may be composed of
several separate parts or parts connected together or be a
single part such as a plate.
[0035] The Water tank may be detachable. A direct con
nection to the Water supply system may also be adopted.
[0036]
The “cup-Warming” device comprises a heating
body 7 located inside the machine and possessing an exter
nal heating surface. The heating body may be a thermoblock,
for example, for heating the Water for preparing the drink
inside the machine. The thermoblock typically comprises an
internal Water circuit (such as an internal coil made of
copper or other alloy or other metals) Which is mounted in
a matrix heated by electrically insulated electrical resistors.
The thermal inertia matrix may be aluminium or other alloy
or a plastic. The matrix produces a large amount of surface
[0027] In another embodiment, the heat-control means
may be separate from the damping means, in the sense that
they are independent means arranged either in series (eg in
Warming device of the invention.
a multilayer structure) or in parallel (e.g. side by side
betWeen the heating body and the cup holder).
heating body by means of a pump 8, preferably a piston
[0028]
For example, the heat-control means may be a heat
insulator but not necessarily a damper. An example Would be
?bre, fabric, felt, cardboard treated to make it ?re-resistant,
or other heat-insulating materials. The damping means taken
heat Which is therefore used as a heat source in the cup
[0037]
The Water is introduced from the tank 3 into the
pump. Notice that the invention is not necessarily limited to
the use of a piston pump but extends to other possible pump
types. The Water is heated in the heating body 7 to a
temperature appropriate for preparing the drink in the breW
ing module.
in isolation or in combination With the heat-control means
[0038]
may also be a hydraulic damper or a simple spring.
[0029] The invention also relates to a method for Warming
heating body 7 is placed in connection With the cup holder
In accordance With one feature of the invention, the
4 via a heat-control and damping means 9 formed by a block
a so-called “cup-Warming” device in a machine for prepar
or pad 90. This pad may be made of for example an elastic
ing drinks, characteriZed in that it involves, among other
things, transmitting by conduction a part only of the surface
heat of the heating body to the cup holder of said device;
Which heating body also being used to heat the Water in the
machine. For this purpose the method involves interposing
betWeen the surface of the cup holder and the heating body
or viscoelastic material to attenuate vibrations transmitted
at least one thermal control means.
by the heating body to the cup holder. Vibrations are
transferred particularly by the ?uid and/or pipes leading
from the pump or by other possible modes of transmission
such as by solid route betWeen the heating body and other
components of the machine. The block is also thick enough
to control the temperature transmitted to the holding plate by
US 2007/0298953 Al
Dec. 27, 2007
the heating body. The heating body typically regularly
2. The machine according to claim 1, Wherein the heat
reaches a maximum surface temperature of around 100° C.
or 150° C. When preparing steam, Whereas the desired
temperature for the cup holder 4 may be around 45-65° C.
The material and the dimensions are chosen to produce,
under normal conditions of use of the machine, a loss of heat
control means and the damping means are a single dual
function heat-control and damping mechanism.
3. The machine according to claim 2, Wherein the heat
control and damping mechanism is interposed in contact
With both the heating body and the holding part.
sufficient to raise and effectively control the temperature of
4. The machine according to claim 1, Wherein the heat
the cup holder at about 45-65° C. For example, a silicone
block With an insulating thickness of dimensions: diameter
approximately 1.2 cm and thickness approximately 4 mm
control and damping means comprises an elastic or vis
coelastic material.
has given satisfactory results.
control and damping means possesses a surface area of
[0039] As to the cup holder 4, this may be made of a
metallic material or a hard heat-resistant plastic. It is pref
erable to select a material that is a reasonably good heat
conductor such as aluminium or an aluminium alloy for an
even distribution of the temperature throughout the cup
surface.
[0040]
FIG. 3 shoWs another possible example in Which
the cup holder 4A is a single component and performs the
function of the heat-control and damping means 9A on its
oWn. The holder may be made of an elastomeric material, for
example, in Which case there is no need to interpose an extra
5. The machine according to claim 1, Wherein the heat
transfer of betWeen 0.5 and 3 cm2 and a thickness of betWeen
0.1 and 2 cm.
6. The machine according to claim 5, Wherein the heat
control and damping means comprises an elastomeric or
silicone material.
7. The machine according to claim 1, Wherein the heat
control and damping means is a block or pad interposed
betWeen the heating body and the cup holder.
8. The machine according to claim 1, Wherein the cup
holding part is made of plastic or metal.
9. The machine according to claim 1, Wherein the heat
part betWeen the holder 4A and the heating body 7.
[0041] FIG. 4 shoWs another possible example in Which
the cup holder 4B comprises the heat-control and damping
control means, damping means or both is an integral part of
the cup holder.
10. The machine according to claim 9, Wherein the
heat-control means, damping means or both is formed by an
means 9B. In other Words, the cup holder comprises at least
underlayer of the cup holder itself, With the underlayer made
one loWer layer 91, or perhaps several layers performing the
combined functions of heat control and damping. These
layers may be made of elastomer or silicone for damping and
may optionally provide at least some degree of heat control.
[0042] An additional, non-damping layer may be added to
of an elastic or viscoelastic material.
11. The machine according to claim 1, Wherein the
heat-control means, damping means or both forms a multi
components may be spikes, points or ribs bearing on the
heating surface of the heating body. Some of these compo
tude of discrete contacts in the form of spikes, rings or ribs
With the heating body formed of an elastic or viscoelastic
material.
12. The machine according to claim 1, Wherein the
heat-control means is a separate component from the damp
ing means.
13. The machine according to claim 1, Wherein the
damping means is a hydraulic damper.
14. The machine according to claim 1, Wherein the
nents may be made of resilient or viscoelastic materials. The
heat-control means is a heat insulator in the form of a ?ber,
control or help to control or ?ne-tune the control of the heat
transmitted to the holder layer 40 in contact With the cups.
[0043]
FIG. 5 shoWs another possible example in Which
the cup holder also includes the heat-control and damping
means 9C in the form of discrete components 92. These
components could also be interposed betWeen the holder 4C
and the heating body 7. As an example they may take the
form of one or more elastomeric rings.
fabric, felt, cardboard material treated to be ?re-resistant and
having little or no resilience.
15. A method for Warming a cup in a machine for
[0044] FIG. 6 shoWs another possible form of separation
of the heat-control and damping means. A damper 93 (eg
a hydraulic damper or a layer of damping material) is placed
betWeen the holder 4D and the heating body 7. Another
preparing hot drink or beverage, Which comprises transmit
ting at least a part of surface heat generated by a heating
body by conduction to a cup holder With the heating body
component 94 such as a thermal control material may be
interposing at least one thermal control means betWeen the
superimposed as shoWn or may be arranged in parallel.
Other embodiments are of course possible Without departing
from the scope of the invention may be interposed betWeen
the cup holder and heating body to dampen vibrations
also used to heat Water in the machine.
16. The method of claim 15, Which further comprises
cup holder and the heating body.
17. The method of claim 16, Wherein the thermal control
means maintains the cup holder surface at a temperature of
betWeen approximately 45 to 65° C. When the heating body
therebetWeen.
reaches a contact temperature of betWeen 100 and 120° C.
18. A method for Warming a cup in a machine for
1. A machine for preparing a hot drink or beverage
comprising a cup-Warming device that comprises a ?uid
delivery system that includes a pump; at least one conduc
mitting some of surface heat generated by a heating body by
tion heating body; at least one holding part for receiving at
least one cup, With the heating body arranged to transmit the
heat to the holding plate by conduction and connected to the
?uid system; and heat-control in contact With the heating
body With the heat control means also consisting of or being
connected to damping means for reducing the vibrations
transmitted by the pump to the heating body.
holder.
19. The method according to claim 18, Which further
comprises interposing at least one vibration damping means
preparing a hot drink or beverage, Which comprises trans
conduction to a cup holder While at least partially damping
vibrations transmissible by the heating body of the cup
betWeen the cup holder and the heating body to dampen such
vibrations.