Cup seal for use in a master cylinder

Details Cup seal for use in a master cylinder Cup seal for use in a master cylinder

1977-01-24

1977-12-06

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1532

Patent

active

040613461

ABSTRACT:
The lip of a cup seal for use in a master cylinder incorporates a semi-torus of material extending axially outward from the outer peripheral end of the seal lip. The added material is positioned immediately adjacent, but slightly radially inward from, the sharp lip edge. This added material prevents the lip from hanging up on the edges of compensation ports which open into the master cylinder bore, particularly during initial installation.

REFERENCES:
patent: 3563558 (1971-02-01), Doutt
patent: 3913460 (1975-10-01), Wright
patent: 3915463 (1975-10-01), Pippert

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