Piston ring with chrome-filled groove

Details Piston ring with chrome-filled groove Piston ring with chrome-filled groove

1976-11-05

1981-12-29

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277235A, F16J 1500

Patent

active

043078907

ABSTRACT:
A piston ring having an annular groove in its outer periphery forming axially-spaced outer shoulders at each side of the ring, such groove including a bottom land and a pair of axially-spaced, radially intermediate lands connected to the bottom land and the outer bearing faces by radially outwardly diverging side walls forming stepped sides for the groove with the groove being filled with a layer of electro-deposited chromium. The deposited chromium and the bearing faces form a continuous axially convex surface on the face of the seal ring.

REFERENCES:
patent: 2565042 (1951-08-01), Phillips
patent: 3435502 (1969-04-01), Thompson et al.

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