Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1980-01-11
1980-12-23
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 92, 277 95, 277153, 305 11, F16J 1532, F16J 1534
Patent
active
042406420
ABSTRACT:
PCT No. PCT/US80/00022 Sec. 371 Date Jan. 11, 1980 Sec. 102(e) Date Jan. 11, 1980, PCT Filed Jan. 11, 1980. A sealing structure (10) for use in providing a wide temperature range seal between relatively movable first and second joint members (12,13).The sealing structure includes a dynamic seal element (20) having a lip portion (23) maintained in sealing engagement with the sealing surface (19) of one joint member (13). The seal element is movable with the joint member (13) and is urged to follow the joint member by a spring (22) acting against a surface (31) of the other joint member (12) and having a force-applying portion (32) acting through a load ring force transfer portion (29) to the sealing lip portion (23). The spring further causes the load ring (21) to urge a sealing portion (27) thereof into static sealing engagement with a surface (28) of the joint member (12).
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Caterpillar Tractor Co.
Ward, Jr. Robert S.
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