Europaisches Patentamt
$
European Patent Office
(fl) Publication number:
288
899
A3
Office europeen des brevets
EUROPEAN
0
PATENT A P P L I C A T I O N
<S) mtci.*: A 47 J 3 1 / 0 4 3
@ Application number: 88106359.8
@ Date of filing: 21.04.88
(gg) Priority: 30.04.87 CH 1638/87
@ Applicant: Ribi, Valentino
252 Route de Saint-Maurice
CH-1814LaTourdePeilz (CH)
@ Date of publication of application:
02.11.88 Bulletin 88/44
@ Inventor: Ribi, Valentino
252 Route de Saint-Maurice
CH-1814LaTourdePeilz (CH)
@ Designated Contracting States :
AT BE DE ES FR GB GR IT
Ribi, Guido
252 Route de Saint-Maurice
CH-1814LaTourdePeiltz (CH)
@ Date of deferred publication of search report:
30.11.88 Bulletin 88/48
@ Representative: Ferrarotti, Giovanni
Studio Consulenza Tecnica Dr. Ing. Giovanni Ferrarotti
Via Alia Porta Degli Archi 1/7
1-16121 Genova (IT)
(54) Coffee making method and related coffee machine.
3
o>
00
<g?) To let the water pass quickly through the ground coffee
layer at a temperature below 100°C, the water is heated to the
desired temperature and is then vacuum drawn through the
powdered coffee, the vacuum being generated by steam
cooling and condensation. A coffee machine, consisting of an
upper vessel (2) which can be tightly connected to a lower
vessel (1) with the interposition of a coffee filter basket (4) is
fitted with a rising transfer tube (9) extending from just above
the bottom of the lower vessel (1) upwards to the upper vessel
(2) and with a shut-off valve (13) which opens in direction of the
upper vessel (2), while this upper vessel (2) is communicating
by means of a siphon (19, 20) with the coffee filter basket (4)
which, in turn, is at its lower end connected to the lower vessel
(1) by means of a non-return valve (17, 18) that can be opened
in direction of the lower vessel (1).
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Bundesdruckerei Berlin
RodL
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European Patent
Office
Application Number
EUROPEAN SEARCH R E P O R T
EP
D O C U M E N T S CONSIDERED TO BE R E L E V A N T
Citation of document with indication, where appropriate,
Relevant
Category
of relevant passages
to claim
CH-A- 251 092
(WIEDMER UND KELLER)
1-4,6,
* Whole document *
10,11,
14
US-A-2 314 018
(SANDERSON)
* Page 2, l e f t - h a n d column, lines
f i g u r e s 6,8 *
X
US-A-2 345 146
(PERLUSZ et
* Whole document *
X
US-A-1 674 857
(EMERSON)
* Whole document *
X
US-A-3 060 836
(VARNEY)
* Column 5, l i n e s 6-35; f i g u r e s
1-13;
al . )
88 10 6359
CLASSIFICATION OF THE
APPLICATION ant. C1.4)
A 47 J
31/043
1-5,7,8
,10,12
1-8
1-5,7,8
1,4
*
1-4,6,9
TECHNICAL FIELDS
SEARCHED (Int. CI.4)
A 47 J
The present search report has been drawn up for all claims
Place of search
Date of completion of the search
THE HAGUE
08-09-1988
CATEGORY OF CITED DOCUMENTS
x
o
X : particularly relevant if taken alone
Y : particularly relevant if combined with another
document of the same category
A: technological background
O : non-written disclosure
P : intermediate document
Examiner
SCHARTZ J .
T : theory or principle underlying the invention
E : earlier patent document, but published on, or
after the filing date
D : document cited in the application
L : document cited for other reasons
&: member of the same patent family, corresponding
document