Control valve main seal retainer with an assembly and removal to

Details Control valve main seal retainer with an assembly and removal to Control valve main seal retainer with an assembly and removal to

1998-05-04

2000-11-28

Wilson, Pamela

Valves and valve actuation

Valve

Seats

251367, F16K 106

Patent

active

061524239

ABSTRACT:
A system for sealing a head end of a cylinder to prevent a material flow through the cylinder. An o-ring inside the cylinder surrounds a piston when the piston is in a closed position inside the cylinder to prevent material from leaking into the cylinder around the piston. The o-ring is held in position by a groove inside the cylinder wall proximate a head end of the cylinder. A retainer ring has a first end held in place by a step protruding from the cylinder wall and a second end extending into a second end of the o-ring. The retainer ring applies a force to the retainer-ring which holds the o-ring inside the groove. The o-ring also applies a force to the retainer ring holding the o-ring in place.

REFERENCES:
patent: 2621011 (1952-12-01), Smith
patent: 3054594 (1962-09-01), Hecht
patent: 4268045 (1981-05-01), Traub
patent: 4399976 (1983-08-01), Legris

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