Piston ring mount structure

Details Piston ring mount structure Piston ring mount structure

1996-07-15

1997-03-18

DePumpo, Daniel G.

Expansible chamber devices

Piston

Nonmetallic portion

277165, 277227, F16J 900

Patent

active

056112602

ABSTRACT:
A piston ring of Teflon (trademark of E.I du Pont de Nemours & Co, Ltd.), i.e., polytetrafluorethylene fiber, is mounted on a piston. The piston ring has an integral portion in the form of a series of axially spaced circumferential projections received in the respective circumferential spaced grooves of the piston. The piston is projected radially and outwardly to abut an axial end of a sleeve portion of the piston ring to limit axial movement of the piston ring.

REFERENCES:
patent: 1802281 (1931-04-01), Shimer
patent: 2228495 (1941-01-01), Williams
patent: 2296116 (1942-09-01), Pelc
patent: 3136228 (1964-06-01), Dailey
patent: 3600045 (1971-08-01), Inoue
patent: 3704893 (1972-12-01), Hill
patent: 3885460 (1975-05-01), Park
patent: 5435233 (1995-07-01), Bowell, Sr.

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