Coffee filter and annular retainer

Details Coffee filter and annular retainer Coffee filter and annular retainer

1986-09-26

1988-03-01

Fisher, Richard V.

Liquid purification or separation

Filter

Resting on supporting receiver, e.g., portable

210479, 210482, 99295, B01D 3502

Patent

active

047284250

ABSTRACT:
There is disclosed filter apparatus for coffee makers wherein the the ground coffee is placed in a filter and hot water passes over the coffee grounds, through the filter and into the coffee pot. The filter apparatus includes a pleated paper filter that is placed in a basket to have the filter peripheral wall portion extend upwardly from the bottom of the basket and a retainer positionable for being surrounded by the filter peripheral wall portion to prevent the filter from collapsing and allowing coffee grounds flowing into the coffee pot with the filtrate.

REFERENCES:
patent: 425374 (1890-04-01), Elliott
patent: 526331 (1894-09-01), Tobin
patent: 1322378 (1919-11-01), Vaughan
patent: 3385039 (1968-05-01), Burke et al.
patent: 3388804 (1968-06-01), Hester
patent: 4075105 (1978-02-01), Steiner et al.
patent: 4080299 (1978-03-01), Bartolome
patent: 4271024 (1981-06-01), Kawolics et al.
patent: 4656932 (1987-04-01), Kopp

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