Multistage oil seal against different cutting fluids for a...

Details Multistage oil seal against different cutting fluids for a... Multistage oil seal against different cutting fluids for a...

2007-02-27

2007-02-27

Canfield, Robert (Department: 3635)

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

C277S562000

Reexamination Certificate

active

10905395

ABSTRACT:
A multistage oil seal (4) includes a plurality of lips (7a,7b,7c) in a plurality of stages disposed around a motor shaft (1) of a machine tool along the axis of the motor shaft to protect internal members of the motor from the cutting fluid. All or at least two of the lips (7a,7b,7c) in the plurality of stages are formed from different materials.

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