Pressurized fluid supply and control device, particularly for co

Details Pressurized fluid supply and control device, particularly for co Pressurized fluid supply and control device, particularly for co

1978-04-13

1980-02-26

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

A47J 3134

Patent

active

041899911

ABSTRACT:
Pressurized fluid supply and control device, for coffee-making machines, comprising an arrangement for generating and supplying a fluid under pressure, control members to allow the fluid to flow intermittently, a bowl containing a charge of powdered material, particularly ground coffee, and adapted to receive the fluid, and a control group effective to hold the bowl closed tight when the fluid under pressure is being supplied, and conversely to connect the bowl to the surrounding atmosphere when the fluid is not being supplied to the bowl to provide a number of alternate supply and venting cycles for the bowl. The control group comprises an elastic pocket to the inside whereof the pressurized fluid is fed. The elastic pocket is inserted in the bowl in the proximity of a top opening of the bowl.

REFERENCES:
patent: 2881692 (1959-04-01), Volcov
patent: 3384004 (1968-05-01), Perlman
patent: 3754463 (1973-08-01), Vernooy

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