Endless backup ring for hydraulic apparatus seal

Details Endless backup ring for hydraulic apparatus seal Endless backup ring for hydraulic apparatus seal

1985-12-09

1987-04-28

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277213, 277215, F16J 1532

Patent

active

046608397

ABSTRACT:
An endless backup ring for hydraulic apparatus seal comprises a ring-like body having, a plurality of notches extending radially through a portion of the ring-like body and forming a staggered relationship in the circumferential direction between each others to enable said ring-like body to expand circumferentially when stretched.

REFERENCES:
patent: 2292041 (1942-08-01), Bowers
patent: 3897072 (1975-07-01), Inka et al.
patent: 4427206 (1986-01-01), Sugiyama
patent: 4431200 (1984-02-01), Sugimura
patent: 4498681 (1985-02-01), Heinz
patent: 4508312 (1985-04-01), Taylor et al.

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