Shut-off valve seal

Details Shut-off valve seal Shut-off valve seal

1986-12-22

1989-04-04

Fisher, Richard V.

Liquid purification or separation

With repair or assembling means

210234, 210235, 210430, 210432, 210440, 210450, 55502, 2513351, 251340, 251900, B01D 2710

Patent

active

048183970

ABSTRACT:
A shut-off valve sealing system for a removable cartridge-type filter which includes a body having an inlet to conduct fluid to be filtered therethrough to an inlet of the filter cartridge. The body has an outlet to conduct filtered fluid therethrough from an outlet of the filter cartridge when supported on the body, and a central opening in communication with the inlet and the outlet. A seal member is provided on the body about the central opening. A valve member is movably mounted on the body and movable against the seal member to shut off the inlet when the filter cartridge is removed from the body. A retainer member is provided for retaining the seal member on the body, the retainer member projecting beyond the seal member and providing a stop for stopping movement of the valve member.

REFERENCES:
patent: 2431782 (1947-12-01), Walton et al.
patent: 2945591 (1960-07-01), Pall
patent: 2978107 (1961-04-01), Gutkowski et al.
patent: 3040894 (1962-06-01), Pall
patent: 3283907 (1966-11-01), Whiting
patent: 3319791 (1967-05-01), Horne
patent: 3368680 (1968-02-01), Bozek
patent: 3628662 (1971-12-01), Kudlaxy
patent: 3912630 (1975-10-01), Reighard et al.
patent: 4077876 (1978-03-01), Southall
patent: 4082673 (1978-04-01), Cilento

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