Filter holder

Details Filter holder Filter holder

1994-11-30

1997-05-13

Walker, W. L.

Liquid purification or separation

Filter

Resting on supporting receiver, e.g., portable

210477, 210479, 210482, 99295, 99302R, B01D 29085

Patent

active

056289022

ABSTRACT:
Filter holder having a dish (1) designed to be mounted on an "espresso" coffee machine and having a cup (2) whose bottom wall forms a filtering surface (3) and which is designed to receive a quantity of coffee, the fineness of whose grounds may vary. The dish also has a collection chamber for froth (4) provided between its bottom (10) and the filtering surface (3), and communicating via an exit passage (5) with distribution funnels (6) enabling the infusion to flow out of the dish (1). The cup (2) has structure for partially blocking the filtering surface (3) of the bottom wall of the cup (2), this structure being formed by at least one blocking area (9) arranged in the bottom (10) of the dish (1) and distant from the bottom (10) at a certain level (A). The cup (2) is mounted so as to be able to move in height so as to occupy at least two positions, either a blocking position in which a part of the filtering surface (3) is brought adjacent to the level (A) of the blocking area (9), or an outflow position in which the filtering surface (3) is situated at a distance from the blocking area.

REFERENCES:
patent: 1983142 (1934-12-01), Moriya
patent: 2069939 (1937-02-01), Browning
patent: 2187187 (1940-01-01), Weinberger
patent: 4644856 (1987-02-01), Borgmann
patent: 5326472 (1994-07-01), Combe

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