Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1990-02-26
1991-10-15
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277152, 277205, 277208, 277214, 277215, F16K 4108
Patent
active
050567993
ABSTRACT:
A lip seal device for sealing the gap between a housing and a rotary shaft comprises a case surrounding the rotary shaft, and a lip seal located on the case and curved toward a sealed fluid and having a sealing surface in sliding contact with an outer circumferential surfaces of the rotary shaft. The lip seal device includes a seal member on the seal surface for sealing a gap between the seal surface and the rotary shaft. The seal member includes a primary annular groove and an auxiliary seal means. The primary annular groove extends continuously in the circumferential direction of the rotary shaft. The auxiliary seal means, either projections or grooves are provided adjacent to the primary annular groove.
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Kanayama Hiroshi
Shimasaki Keiichi
Takenaka Akira
Cuchlinski Jr. William A.
Folker James K.
Taiho Kogyo Co. Ltd.
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