Removable fluid seal and method

Details Removable fluid seal and method Removable fluid seal and method

1991-07-12

1992-06-02

Cohan, Alan

Valves and valve actuation

With means to increase head and seat contact pressure

Piston

138 89, F16K 328

Patent

active

051180790

ABSTRACT:
A removable fluid seal has a first deforming pin seated on a dead end of a fluid passage and a second deforming pin positioned in the opposite end of the fluid passage, with a spherical elastomeric member positioned between the first and the second deforiming pins. A threaded plug is axially advanced through the fluid passage to force the deforming pins towards each other and resiliently distort the elastomeric member into a deformed state in which an outer surface of the sphere is forced into sealing engagement with the sidewall of the fluid chamber.

REFERENCES:
patent: 1600137 (1926-09-01), Randolph
patent: 1993307 (1935-03-01), Nicholson
patent: 2213680 (1940-09-01), Share
patent: 2993616 (1961-07-01), Carlile
patent: 3292897 (1966-12-01), McClelland
patent: 3326243 (1967-06-01), Augustus
patent: 3468339 (1969-09-01), Gray

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