Unitized dual lip seal

Details Unitized dual lip seal Unitized dual lip seal

1974-10-07

1976-06-15

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 82, F16J 1538, F16J 1554

Patent

active

039632482

ABSTRACT:
A unitized dual lip seal for providing a seal between a housing and a shaft extending through a bore in the housing, including (1) a wear sleeve connected to the housing and having an inwardly extending radial flange, and (2) an elastomeric member mounted on the shaft with a main sealing lip riding on the inner wall of the wear sleeve on one side of the radial flange and an auxiliary lip on the other side of the radial flange and riding on the outside face of the radial flange. The umbrella-like auxiliary lip prevents formation of a pocket of contaminant and also encourages water drainage to wash sludge away from the auxiliary lip.

REFERENCES:
patent: 2245475 (1941-06-01), Hately
patent: 2831713 (1958-04-01), Smith
patent: 3135518 (1964-06-01), Carson et al.
patent: 3561770 (1971-02-01), Corsi et al.
patent: 3606351 (1971-09-01), Hallerback

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