Piston ring construction

Details Piston ring construction Piston ring construction

1977-05-31

1978-07-11

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

267 15, 277143, 277218, F16F 134, F02F 500

Patent

active

040997308

ABSTRACT:
The disclosure embraces a piston ring construction particularly an oil control ring construction comprising a parted oil control ring or rings and a parted compressible spacer-expander ring or spring member, the spacer-expander member configurated with strut portions, pairs of the strut portions having their end regions integrally joined by connectors, the connectors being formed with inwardly extending portions, the spacer-expander member being arranged to exert substantially uniform outward radial pressure against one or more oil control rings, the spacer-expander member being adapted to accommodate a latch member for bridging the ends of the member.

REFERENCES:
patent: 2111258 (1938-03-01), Zahodiakin
patent: 2162555 (1939-06-01), Kurth
patent: 3000677 (1961-09-01), Thomas et al.
patent: 3136559 (1964-06-01), Hamm
patent: 3598419 (1971-08-01), Nisper et al.
patent: 3615098 (1971-10-01), Sugahara
patent: 3787059 (1974-01-01), McCormick
patent: 3814409 (1974-06-01), Prasse

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