Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1978-04-13
1979-11-06
Myhre, Charles J.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
64 17R, 277205, 277206R, F16D 326
Patent
active
041731298
ABSTRACT:
An improved seal for use in a universal joint structure. The seal includes a C-shaped seal ring which is loaded into sealing engagement with an associated bearing cap by a load ring compressively nested within the C-shaped seal ring. The leg of the seal ring sealingly engages the bearing cap under a controlled load to provide an improved oil seal. The arrangement of the seal is coordinated with the allowable play of the trunions of the joint structure so as to assure positive sealing engagement of the seal ring as a result of the loading of the load ring over the entire range of play movement permitted in the joint structure. The trunions may be journaled in the bearing caps by suitable roller bearings which may effectively further limit the play so as to limit sliding movement as well as axial deflection of the seal rings for further improved sealing in the joint structure. In one form the leg of the seal ring sealingly engaging the bearing cap has an effective sealing engagement therewith of approximately one half the radial extent of the leg.
REFERENCES:
patent: 2209854 (1940-07-01), Slaght
patent: 2338169 (1944-01-01), Dunn
patent: 2991634 (1961-07-01), Daley
patent: 3588129 (1971-06-01), Pitner
patent: 3633383 (1972-01-01), Kleinschmidt
patent: 3635535 (1972-01-01), Schultenkamper
patent: 3779039 (1973-12-01), Schultenkamper
patent: 3841718 (1974-10-01), Reinsma
patent: 3846995 (1974-11-01), Mangiavacchi
patent: 3937035 (1976-02-01), Fisher
Caterpillar Tractor Co.
Myhre Charles J.
Turner R. C.
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