Sealing cup for hydraulic piston-cylinder device

Details Sealing cup for hydraulic piston-cylinder device Sealing cup for hydraulic piston-cylinder device

1980-12-05

1982-08-24

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

043457711

ABSTRACT:
In a sealing or piston cup for maintaining lubricating oil on a sealing surface, the sealing surface thereof is formed with a circumferentially extending angular recess or groove which functions to retain lubricating oil. The sealing cup with the recess can ensure a smooth and stable operation of the device.

REFERENCES:
patent: 2664952 (1954-01-01), Losey
patent: 2686402 (1954-08-01), Samuel
patent: 2720924 (1955-10-01), Brown
patent: 2815995 (1957-12-01), Young
patent: 2867457 (1959-01-01), Riejing et al.
patent: 2884291 (1959-04-01), Whitten
patent: 3527507 (1970-09-01), Clark
patent: 3653670 (1972-04-01), Sifri et al.
patent: 3929341 (1975-12-01), Clark

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