Oil control ring spacer-expander with improved slip latch

Details Oil control ring spacer-expander with improved slip latch Oil control ring spacer-expander with improved slip latch

1976-09-08

1980-05-27

Footland, Lenard A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277139, 277155, 277218, F16J 906, F16J 912

Patent

active

042046882

ABSTRACT:
In a parted corrugated spacer-expander for use in a piston oil control ring of the type which includes a circumferential series of alternating inner and outer crowns successively connected by radially diverging spring legs having oil drain openings formed therein, an improved slip latch comprising a curved rod having a radius of curvature equal to or less than the free-state radius of curvature of the expander. One end of the latch extends through at least one leg opening adjacent one expander end and terminates in a stop having an axial dimension which prevents passage through the leg openings. The other latch end extends over an arc of at least seventy-five degrees through a plurality of leg openings in the opposite expander end and is free to slide through the leg openings.

REFERENCES:
patent: 2893798 (1959-07-01), Olson
patent: 3099455 (1963-07-01), Mayfield
patent: 3695622 (1972-10-01), Davis et al.
patent: 3834716 (1974-09-01), Okada

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