Metal piston with annular flanges having synthetic overlay and a

Details Metal piston with annular flanges having synthetic overlay and a Metal piston with annular flanges having synthetic overlay and a

1977-03-10

1978-03-21

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277166, 2771895, 277235R, 267 15, 92256, F02F 500, F16J 906

Patent

active

040799514

ABSTRACT:
A piston and cylinder device wherein the piston comprises an annular metal core with a peripheral groove for receiving an annular seal. The metal core has a peripheral overlay of nylon which provides a bearing surface at each side of the peripheral groove and the overlay follows the contour of the periphery of the metal core including the walls of the peripheral seal receiving groove.

REFERENCES:
patent: 3540746 (1970-11-01), Jepsen et al.
patent: 3588134 (1971-06-01), Sievenpiper
patent: 3636824 (1972-01-01), Clark
patent: 3885800 (1975-05-01), Sievenpiper

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