Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1988-06-28
1989-07-04
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277166, F16J 1532
Patent
active
048444847
ABSTRACT:
An annular shaft seal including a continuous lip sealing element for sealing against oil flow between a bore and a shaft extending through the bore includes a convoluted elastomeric flexible section which connects the sealing element with a rigid case support. The flexible section is defined by a plurality of annuli, wherein each adjoining pair of annuli defines a reverse bend therebetween. One or more of the reverse bends is reinforced with a relatively non-elastic material, preferably plastic, which is integrally molded thereinto, and provides a torsional rigidity while permitting radial flexibility. This provides a closer following of the lip seal element on the shaft under conditions of extreme runout wherein the lip seal element would otherwise become dynamically distorted.
REFERENCES:
patent: 2525365 (1950-10-01), Meyer
patent: 2731284 (1956-01-01), Chambers, Jr. et al.
patent: 2736586 (1956-02-01), Riesing
patent: 3362919 (1968-01-01), McCormick
patent: 4015883 (1977-04-01), Taylor
patent: 4274641 (1981-06-01), Cather, Jr.
patent: 4360208 (1982-11-01), Hill et al.
patent: 4426094 (1984-01-01), Antonini
patent: 4588195 (1986-05-01), Antonini et al.
Antonini Joseph
Gallo Paul
Cuchlinski Jr. William A.
Dana Corporation
Hohenshell Jeff
McDonald F. B.
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