Piston for a piston-cylinder unit

Details Piston for a piston-cylinder unit Piston for a piston-cylinder unit

1998-08-12

2000-10-10

Ryznic, John E.

Expansible chamber devices

Piston

With fluid passage in piston face

92128, F01B 3100

Patent

active

06129005&

ABSTRACT:
A piston for a piston-cylinder unit comprises a piston body having passages which connect two spaces in a cylinder on opposing sides of the piston. The passages are covered by at least one valve disk which is centered relative to a center of the piston by a centering sleeve. A spring element is arranged between the piston body and the centering sleeve. This spring element, when mounted, spaces the centering element from the piston body and accordingly displaces the useful range of the centering element until the piston is assembled in its entirety and every structural component part of the piston occupies its intended position.

REFERENCES:
patent: 1234972 (1917-07-01), Trist
patent: 1955157 (1934-04-01), Wayne
patent: 2332763 (1943-10-01), Stewart
patent: 2587091 (1952-02-01), Barnes et al.
patent: 3132568 (1964-05-01), Strader
patent: 3339834 (1967-09-01), Palmer
patent: 3426655 (1969-02-01), Rumsey
patent: 3444965 (1969-05-01), Dobkins
patent: 3994604 (1976-11-01), Visser
patent: 4238009 (1980-12-01), Wossner et al.
patent: 5259294 (1993-11-01), May

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