Dual operating mode seal assembly

Details Dual operating mode seal assembly Dual operating mode seal assembly

1983-04-04

1984-01-31

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277165, 277177, 277186, 277DIG6, 305 11, F16J 1524

Patent

active

044285892

ABSTRACT:
A dual operating mode seal assembly (10) wherein a frictional force maintains a seal ring (50) in a static sealing mode during either movements of a member (16) being sealed to eliminate frictional and abrasive wear to the seal ring (50) and member (16). A load ring (52) provides a shear force upon deflection sufficient to overcome the frictional force at a predetermined slip point to cause the seal ring (50) to enter a dynamic sealing mode in response to extended travel movements of the member (16).

REFERENCES:
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patent: 2935860 (1960-05-01), Miller
patent: 3158923 (1964-12-01), Reinsma
patent: 3188152 (1965-06-01), Miller
patent: 3218107 (1965-11-01), Reinsma
patent: 3357758 (1967-12-01), Miller
patent: 3397928 (1968-08-01), Galle
patent: 3603618 (1971-09-01), Stratton
patent: 3620578 (1971-11-01), Fix
patent: 3636824 (1972-01-01), Clark
patent: 3860250 (1975-01-01), Lundquist
patent: 4151999 (1979-05-01), Ringel
patent: 4244588 (1981-01-01), Langewisch
patent: 4253674 (1981-03-01), Fee
patent: 4324114 (1982-04-01), Durham
patent: 4330134 (1982-05-01), Kolinger

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