Spring seal

Details Spring seal Spring seal

1980-03-07

1982-10-05

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277177, 277188A, F16J 1500

Patent

active

043524982

ABSTRACT:
A sealing ring firmly grips a movable piston, performs the normal sealing function, and when pressure is released on the piston the sealing ring pulls back on the piston so as to retract the piston. The sealing ring is designed so as to fit in a conventional seal or "O" ring groove without any modification of the groove.

REFERENCES:
patent: 3005648 (1961-10-01), Christensen
patent: 3455566 (1969-07-01), Hull et al.
patent: 3520047 (1970-07-01), Muhlner et al.
patent: 3738665 (1973-06-01), Bilco
patent: 4170365 (1979-10-01), Haaland
patent: 4191385 (1980-03-01), Suedberg
patent: 4229013 (1980-10-01), Burke et al.
patent: 4231578 (1980-11-01), Traub

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