Espresso coffee machine

Details Espresso coffee machine Espresso coffee machine

1992-11-20

1994-01-25

Jenkins, Robert W.

Foods and beverages: apparatus

Beverage

Infusors

99295, 99297, 99302R, A47J 3134

Patent

active

052807479

ABSTRACT:
An espresso coffee machine has a vertically movable snout that supplies hot water under pressure of a pump (13), to coffee (8) held in a filter (7) on a stationary support (9). The snout (10) which penetrates inside the filter (7), is mounted on the first part (22) of a hydraulic jack (21) actuated by the pressurized water supplied by the pump (13). The second part (88) of the jack is adapted to be moved against the action of an antagonistic spring (98) in order to permit the optimum deployment of the jack (21) when the snout (10) is in contact with the ground coffee (8) in the filter (7). This construction is useful for limiting the mechanical stresses on the component parts of the jack, and the pressure exerted by the snout on the ground coffee.

REFERENCES:
patent: 2205290 (1940-06-01), Herrera
patent: 3266410 (1966-08-01), Novi
patent: 4426919 (1984-01-01), Rhoten
patent: 4796521 (1989-01-01), Grossi

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