Sealing arrangement, for use with, and in combination with, a st

Details Sealing arrangement, for use with, and in combination with, a st Sealing arrangement, for use with, and in combination with, a st

1995-06-12

1997-07-22

Chambers, A. Michael

Fluid handling

Line condition change responsive valves

Thermal responsive

13732901, 13763022, 251361, 251368, F16K 1738

Patent

active

056495676

ABSTRACT:
A circular body, having a throughgoing orifice, an externally threaded periphery, and a pair of stepped recesses, defines a valve seat for a reciprocating piston. A retaining ring is made fast in one of the recesses, and a seal which contracts upon cooling to the ambient, after having been exposed to elevated temperatures, is set in the other recess. The seal is formed of a composite of plastic in which are dispersed carbon fibers to render the seal resistant to creep. A housing having a pair of chambers formed therein has the orificed body and piston interposed between the chambers for valvingly controlling inter-chamber communication.

REFERENCES:
patent: Re25251 (1962-10-01), Quail
patent: 978928 (1910-12-01), O'Malley
patent: 2942622 (1960-06-01), Hahn et al.
patent: 3022978 (1962-02-01), Kowalski et al.
patent: 3223110 (1965-12-01), Mueller et al.
patent: 4146056 (1979-03-01), Buchanan
patent: 4736083 (1988-04-01), Saville
patent: 4765592 (1988-08-01), Minai

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