Rotation shaft seal

Details Rotation shaft seal Rotation shaft seal

2006-02-07

2006-02-07

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

Reexamination Certificate

active

06994352

ABSTRACT:
A rotation shaft seal to seal liquid, which is poor of lubricant liquid, stably for a long time. In a rotation shaft seal, provided with a rubber lip portion having a sliding inner peripheral edge portion which contacts a rotation shaft to seal liquid on a pressure chamber side, a lubricant liquid well portion is disposed near the sliding inner peripheral edge portion.

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