Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1980-01-21
1981-02-17
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 95, 277152, 277166, 277181, 305 11, F16J 1532, F16J 1536
Patent
active
042510821
ABSTRACT:
PCT No. PCT/US80/00056 Sec. 371 Jan. 21, 1980 Sec. 102(e) Date Jan. 21, 1980 PCT Filed Jan. 21, 1980
A joint sealing structure (16) providing a seal between variably spaced joint members (11,12). The sealing structure includes a seal element (17) having a lip portion (20) engaging a sealing surface (21) of one of the joint members (12) and a base portion (19) having a dynamic sealing engagement with the other of the joint members (11). The lip portion is carried on a flexible mounting portion (18). A Belleville spring (24) applies a sealing force to the lip portion (20) through a stiffener ring (23) held against the seal element solely by the force of the spring without the need for bonding or other fastening means. The stiffener ring may embrace a portion (22) of the seal element which, in the illustrated embodiment, comprises a corner portion thereof. A portion (26) of the stiffener ring may be axially aligned with the lip portion (20) of the seal element.
REFERENCES:
patent: 2819106 (1958-01-01), Voorhees
patent: 3061320 (1962-10-01), Haensch
patent: 3110097 (1963-11-01), Yocum
patent: 3614113 (1971-10-01), Burk
patent: 3752543 (1973-08-01), Schmidt
patent: 3841718 (1974-10-01), Reinsma
patent: 4058322 (1977-11-01), Fass
Caterpillar Tractor Co.
Ward, Jr. Robert S.
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