Coffee filter ring

Details Coffee filter ring Coffee filter ring

1987-02-12

1988-04-05

Fisher, Richard V.

Liquid purification or separation

Filter

Resting on supporting receiver, e.g., portable

210479, 99295, B01D 2328

Patent

active

047357193

ABSTRACT:
A continuous generally frusto-conically shaped ring for use in retaining the side walls of conventional automatic drip type coffee filters in erect orientation within filter support trays and which include an annular flange which is engageable with the top or sides of the filter in such a manner so as to not interfere with the normal passage of hot water through the coffee filter.

REFERENCES:
patent: D217381 (1970-04-01), Douglas
patent: 232817 (1880-10-01), Harrison
patent: 1168544 (1916-01-01), Newlin
patent: 2684624 (1954-06-01), Alvarez
patent: 3388804 (1966-02-01), Hester
patent: 4176588 (1979-12-01), Baron
patent: 4656932 (1987-04-01), Kopp

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