Filter apparatus having a bag with a gasket

Details Filter apparatus having a bag with a gasket Filter apparatus having a bag with a gasket

1990-04-02

1991-08-13

Dawson, Robert A.

Liquid purification or separation

With repair or assembling means

210445, 210452, 210470, B01D 2911

Patent

active

050394100

ABSTRACT:
A filter apparatus having a bag filter subassembly for collecting contaminating material. The bag filter subassembly includes a bag filter having a top end portion and a gasket ring having a groove receiving the top end portion. The gasket ring is a molded article, composed of a polyurethane composition. The groove has opposite sidewalls with molded protrusions caused by recesses in the top end portion. The recesses can be microscopically small, depending upon the fabric of the filter bag.

REFERENCES:
patent: 2853195 (1958-09-01), Malcolm
patent: 3716181 (1973-02-01), Terzuoli
patent: 3780871 (1973-12-01), Hicks et al.
patent: 4169331 (1979-10-01), Baker
patent: 4225437 (1980-09-01), Woodard
patent: 4481117 (1984-11-01), Collins
patent: 4669167 (1987-06-01), Asterlin

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