Axial shaft seal

Details Axial shaft seal Axial shaft seal

2006-03-28

2006-03-28

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal combined with indicator, sampler, or inspection feature

C277S353000, C277S561000

Reexamination Certificate

active

07017913

ABSTRACT:
An axial shaft seal disposed between a housing wall and a rotating shaft includes an outer ring insertable into the housing wall in a stationary and sealing manner and an inner ring connectable to the shaft in a non-twisting and sealing manner. The outer ring includes a sleeve having a polymer material extending radially inward and having a spring bellows form. A radially inward end portion of the sleeve has a first sealing surface. The inner ring includes a ring flange extending radially outward so as to provide a second sealing surface for axially mating the first sealing face.

REFERENCES:
patent: 3438639 (1969-04-01), Paulsen
patent: 4998740 (1991-03-01), Tellier
patent: 5085444 (1992-02-01), Murakami et al.
patent: 5348312 (1994-09-01), Johnston
patent: 5387040 (1995-02-01), Firestone et al.
patent: 1893773 (1964-05-01), None

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