Brewing funnel with screen filter assembly

Details Brewing funnel with screen filter assembly Brewing funnel with screen filter assembly

1985-02-01

1987-02-10

Fisher, Richard V.

Liquid purification or separation

Filter

Portable receptacle draining type

210477, 210479, 210481, 99306, B01D 2328

Patent

active

046421904

ABSTRACT:
A beverage brewing funnel of the type used with disposable paper filters. The interior bottom surface of the funnel is provided with ribs which prevent the disposable filters when wet from engaging the interior bottom surface. The bottom of the funnel has a radially extending drainage sump with a drainage or discharge port. A three-part removable screen filter assembly is mounted in the drainage port. One part of the filter is a bushing which seats in the drainage port and has exteriorly threaded nipples projecting above and below the drainage port. The bottom end of a enclosed, generally cylindrical and finger-like rigid filter is secured to a nut which is screwed onto the upwardly projecting nipple of the bushing. A separate nut is screwed onto the downwardly projecting nipple and secures the bushing in place in the discharge port.

REFERENCES:
patent: 953065 (1910-03-01), Smith
patent: 1248172 (1917-11-01), Schuhmann
patent: 1341119 (1920-05-01), Fraser
patent: 2472955 (1949-06-01), Myers
patent: 2689651 (1954-09-01), Horsdal
patent: 3912638 (1975-10-01), Beaubien
patent: 3935112 (1976-01-01), Greutert
patent: 4283283 (1981-08-01), Zimmerman
patent: 4301010 (1981-11-01), Eddleman et al.
patent: 4303525 (1981-12-01), Stover
patent: 4430222 (1984-02-01), Walker

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