Hydraulic cylinder

Details Hydraulic cylinder Hydraulic cylinder

1974-07-11

1976-08-24

Maslousky, Paul E.

Expansible chamber devices

Moving cylinder

92168, 277 59, 277 75, F01B 1502, F16J 1518

Patent

active

039759911

ABSTRACT:
A hydraulic cylinder is disclosed wherein a seal ring is fitted around the side surface of a plunger which in turn is fitted into a cylinder in such a way that there is a clearance between the seal ring and the plunger, and oil passages are formed through the seal ring, thereby at the lower part of the seal ring, exerting to the seal ring the upward force which may encounter the downward oil pressure exerted to the seal ring.

REFERENCES:
patent: 1636012 (1927-07-01), Olson et al.
patent: 3089680 (1963-05-01), Deve
patent: 3150564 (1964-09-01), Mc Mullen
patent: 3315968 (1967-04-01), Hanlon
patent: 3497038 (1970-02-01), Schrader et al.
patent: 3743303 (1973-07-01), Pope
patent: 3804424 (1974-04-01), Gardner

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