Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1980-01-07
1980-10-14
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 85, 277 95, 277189, 3081871, 188 18R, F16J 1532, F16J 1534
Patent
active
042277043
ABSTRACT:
A seal (16) is positioned to prevent entry of foreign matter through an annular opening (26) between first and second members (12,14). The first and second members (12,14) are, for example, a stationary backing plate (20) and a rotatable hub (22) of a brake assembly (24) or a rotatable shaft and associated housing element. Foreign matter passing between the backing plate (20) and the hub (22), for example, can enter an associated brake drum (30) and interfere with effectiveness of the brake assembly (24). Apparatus (67) connects the seal (16) to the backing plate (20). The seal (16) has first and second legs (38,40) each having a sealing surface (58,60). The sealing surfaces contact a face (94) and outer surface (92) of the hub (22), respectively, to substantially block passage of foreign matter to the brake drum (30).
REFERENCES:
patent: 3006701 (1961-10-01), Curtis
patent: 3438639 (1969-04-01), Paulsen
patent: 3447848 (1969-06-01), Pitner
patent: 3533491 (1970-10-01), Svenson
patent: 3614113 (1971-10-01), Burk
patent: 3614183 (1971-10-01), Berens et al.
patent: 3841723 (1974-10-01), Kelso
patent: 3998297 (1976-12-01), Aono
patent: 4021085 (1977-05-01), Willyard
patent: 4058322 (1977-11-01), Fass
Heming William B.
Towmotor Corporation
Ward, Jr. Robert S.
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