Bonded valve stem seal with retainer tangs

Details Bonded valve stem seal with retainer tangs Bonded valve stem seal with retainer tangs

1994-12-12

1996-09-10

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277152, 277166, 277178, 277189, 1231886, F16J 1532, F01L 308

Patent

active

055538690

ABSTRACT:
An inventive valve stem seal assembly includes a seal body bonded to a metal retainer without the need for a separate retaining ring or a garter spring. Compressive radial force between the seal body and a corresponding engagement surface of a valve stem is provided by an end wall of the retainer, and in particular, tangs which extend generally longitudinally away from the end wall. The seal body envelops the tangs, and the tangs selectively flex when a valve stem is inserted through an aperture of the seal body.

REFERENCES:
patent: 2859993 (1956-10-01), Estey
patent: 2926938 (1960-03-01), Ratti
patent: 3480286 (1969-11-01), Kosatka
patent: 3601420 (1971-08-01), Binford
patent: 4125265 (1978-11-01), Grzesiak
patent: 4811704 (1989-03-01), Boehmer et al.
patent: 4909202 (1990-03-01), Binford et al.
patent: 4947811 (1990-08-01), Binford
patent: 5237971 (1993-08-01), Worsley

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