Piston-and-cylinder arrangement with radially-yieldable piston h

Details Piston-and-cylinder arrangement with radially-yieldable piston h Piston-and-cylinder arrangement with radially-yieldable piston h

1986-06-02

1987-09-08

Hershkovitz, Abraham

Expansible chamber devices

Piston

With fluid passage in piston face

92175, 92247, F01B 3100

Patent

active

046916210

ABSTRACT:
An improved piston-and-cylinder arrangement has a pressure-balanced piston head mounted on an actuator rod. The piston head is mounted for axial movement with the rod, and for radial movement relative thereto. Three annular ring-type seals are provided between facing cylindrical surfaces of the piston head and rod. The frictional impediment to radial movement of the piston head relative to the rod is minimized, and the improved device exhibits a reduction in the average maximum longitudinal frictional force per stroke.

REFERENCES:
patent: 680465 (1901-08-01), Reynolds
patent: 1974362 (1934-09-01), Marsh
patent: 2068859 (1937-01-01), Jones
patent: 2460948 (1949-02-01), Sander
patent: 3132568 (1964-05-01), Strader
patent: 3207426 (1965-09-01), Gassmann
patent: 3247767 (1966-04-01), Aslan
patent: 3382772 (1968-05-01), Kampert
patent: 3426655 (1969-02-01), Rumsey
patent: 3785253 (1974-01-01), Sandau

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