Piston ring

Details Piston ring Piston ring

1975-06-27

1976-03-16

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 920

Patent

active

039442365

ABSTRACT:
A piston ring whose piston ring sliding surface is provided with a channel having chrome plating layer, with grooves continuously or discontinuously provided on the borders of the chrome layer and land portions of the piston ring sliding surface so that the ridgelines of the chrome layer form an obtuse angle at each side thereof.

REFERENCES:
patent: 894880 (1908-08-01), Garlock
patent: 2956848 (1960-10-01), St. Clair
patent: 3669461 (1972-06-01), Togami

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