Filter bag seal

Details Filter bag seal Filter bag seal

1990-10-23

1991-12-24

Dawson, Robert A.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210452, 210453, 55495, B01D 2911, B01D 2927

Patent

active

050750046

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 an integral collar. The collar has a lower portion fixedly connected to the bag filter, and has a middle portion to be supported within a vessel, and has a top lip portion to engage a cover plate of the vessel. The collar has a pivotal web portion disposed between the middle portion and the top lip portion, and has an inner surface with a groove having sidewalls, whereby internal pressure on the sidewalls pivot the top lip portion causing a sealing ring bearing area on the cover plate.

REFERENCES:
patent: 3640392 (1972-02-01), Smith et al.
patent: 4133769 (1979-01-01), Morgan
patent: 4259188 (1981-03-01), Morgan
patent: 4285814 (1981-08-01), Morgan, Jr.
patent: 4490253 (1984-12-01), Tafara
patent: 4948504 (1990-08-01), Kierdorf et al.
patent: 4966697 (1990-10-01), Rosaen

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