Apparatus for preparing hot beverages

Details Apparatus for preparing hot beverages Apparatus for preparing hot beverages

1988-08-25

1990-08-14

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

99300, 13762546, A47J 3146

Patent

active

049477382

ABSTRACT:
Apparatus of this type, for instance Espresso machines, comprising a plurality of preparation devices such as a coffee filter, a foaming nozzle or the like, are equipped with a multiple-way valve operable to supply hot water or hot steam to the various preparation devices. Conventional valves of this type are not sufficiently resistant against the corrosive action of the hot and frequently also aggressive water.
In the apparatus according to the invention, the multiple-way valve (5) is formed as a ceramic valve comprising a number of ceramic discs (11 to 13) provided with distributor passages (14, 15, 16, 17, 23) and mounted in sealing surface contact for displacement relative to one another.
The apparatus is suitable for the preparation of hot beverages, particularly Espresso.

REFERENCES:
patent: 4204465 (1980-05-01), Knecht
patent: 4224958 (1980-09-01), Kaplan
patent: 4603620 (1986-08-01), Daugherty
patent: 4632024 (1986-12-01), Cortese

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