Piston ring spacer-expander with overlap-preventing expander joi

Details Piston ring spacer-expander with overlap-preventing expander joi Piston ring spacer-expander with overlap-preventing expander joi

1976-08-05

1977-11-22

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

267 15, F02F 500

Patent

active

040592782

ABSTRACT:
In a parted corrugated spacer-expander for a piston oil control ring, an improved expander end joint for preventing installation of the expander should overlap occur between the expander ends in which the respective expander ends are each formed in a multiple-bend box-like structure which is self-supporting under stress from the opposing expander end in either the circumferential or the radial direction.

REFERENCES:
patent: 3427014 (1969-02-01), De Bruin
patent: 3695622 (1972-10-01), Davis et al.

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