Receptacle valve assembly and seal

Details Receptacle valve assembly and seal Receptacle valve assembly and seal

1992-11-02

1993-11-30

Schwadron, Martin P.

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

2511496, 251333, 62 507, F16L 3728

Patent

active

052658449

ABSTRACT:
A valve receptacle is disclosed, the valve providing a fluid seal when the valve is closed at atmospheric temperatures and at temperatures encountered as a result of exposure to cryogenic fluids. The valve receptacle comprises a valve receptacle housing; a seal piston disposed within the receptacle housing; a projecting flange of the seal piston engaging a seal inclined surface; and a seal piston guide comprising a first hollow cylinder and a second hollow cylinder interior of the first hollow cylinder, and a connecting member connecting the hollow cylinders. The piston rod is slidably moveable within the interior hollow cylinder. Abutment of a piston rod shoulder with the inner hollow cylinder limits the extent of lateral movement of the piston seal.

REFERENCES:
patent: 3378225 (1968-04-01), Snyder, Jr.
patent: 3567255 (1971-03-01), Evans

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