Seal for a variable ratio hydraulic master cylinder

Details Seal for a variable ratio hydraulic master cylinder Seal for a variable ratio hydraulic master cylinder

1977-01-19

1978-12-05

Ross, Herbert F.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277189, 277197, 60588, 92165R, 403328, B65D 5302, F16J 1546

Patent

active

041282493

ABSTRACT:
A sealing device is mounted in the bore of a housing in which a piston is slidably mounted. A fluid tight seal is mounted between a shoulder of the housing and a washer circumscribing the piston. The washer has an outer diameter substantially equal to that of the bore and comprises an outer annular groove in which at least one fixing element is disposed. Each fixing element comprises a tongue-shaped portion penetrating through a corresponding radial bore defined at the bottom of the annular groove. When the piston is inserted through the washer, the fixing elements are moved radially towards the outside of the washer through the tongue-shaped portions and penetrate into a facing annular groove formed in the bore.

REFERENCES:
patent: 1635144 (1927-07-01), Stevens
patent: 3044813 (1962-07-01), Affeldt
patent: 3439944 (1969-04-01), Leutenegger
patent: 3490341 (1970-01-01), Sessody
patent: 3920253 (1975-11-01), Bauer

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