Sealing assembly for sealing a port and the like

Details Sealing assembly for sealing a port and the like Sealing assembly for sealing a port and the like

1999-04-27

2000-10-10

Browne, Lynne H.

Seal for a joint or juncture

Seal between fixed parts or static contact against...

277614, 277616, 277637, F16J 1514

Patent

active

061293598

ABSTRACT:
The sealing assembly for a port of a valve or the like is disclosed. In detail, the sealing assembly includes the port having a circular shaped end with a circular shaped knife-edge thereon. The sealing assembly further includes a hollow cap having a closed first end with an aperture therethrough and an open second end. The cap further includes internal threads adapted to mate with the external threads of the port. A gasket is mounted within the cap having flat first and second principle sides and made of a deformable metal, the first principle side of the gasket for mounting against the circular shaped knife edge of the port. A plunger having a circular shaped disc portion is adapted to fit within the hollow cap and is engagable with the first principle surface of the gasket and includes a shaft portion extending out of the aperture. The cap and shaft of the plunger include external wrenching flats. Thus when the cap is screwed onto the port and the plunger is prevented from rotating by a wrench mounted on the wrenching flats of the shaft portion of the plunger, the gasket is forced into engagement with the knife edge in pure compression and no rotation of the gasket occurs causing the knife edge to locally deform the gasket sealing of the port.

REFERENCES:
patent: 3989285 (1976-11-01), Yancey
patent: 4084602 (1978-04-01), Cook
patent: 4616860 (1986-10-01), Faria et al.
patent: 4950002 (1990-08-01), Hormansdorfer
patent: 4988130 (1991-01-01), Obara et al.
patent: 5251941 (1993-10-01), McGarvey
patent: 5433454 (1995-07-01), Ramberg
patent: 5782500 (1998-07-01), Mate
patent: 5803507 (1998-09-01), Vu

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