Uniform load piston ring

Details Uniform load piston ring Uniform load piston ring

1979-03-23

1981-09-15

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277173, 277216, F16K 4100

Patent

active

042892643

ABSTRACT:
A piston ring which provides uniform circumferential pressure loading on the ring. The ring has two protrusions, and an optional third protrusion, which give full and uniform sealing contact between the ring, and a complementary peripheral groove in an associated piston, or housing, and a complementary cylinder movable wall, or sleeve, so that minimum pressure balance is sacrificed irrespective of any movement of the cylinder wall.

REFERENCES:
patent: 115463 (1871-05-01), Hall et al.
patent: 2912292 (1959-10-01), Lawitschka
patent: 2970023 (1961-01-01), Thompson
patent: 3271037 (1966-09-01), Hammond
patent: 3315968 (1967-04-01), Hanlon
patent: 3456954 (1969-07-01), Prasse et al.
patent: 3462159 (1969-09-01), Baumann et al.
patent: 3704893 (1972-12-01), Hill
patent: 3743303 (1973-07-01), Pope
patent: 3887198 (1975-06-01), McClure
patent: 4053165 (1977-10-01), Hartley

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