Hydraulic cylinder with lateral support

Details Hydraulic cylinder with lateral support Hydraulic cylinder with lateral support

1991-11-04

1992-12-22

Denion, Thomas E.

Expansible chamber devices

Mutually relatively movable cylinder or sleeve, member...

92110, 92118, 92165R, F01B 720

Patent

active

051726254

ABSTRACT:
A hydraulic piston and cylinder assembly is provided with an outer sleeve attached to the piston rod. The outer wall of the cylinder has a smooth wall with a circular cross section concentric with the inner bore of the cylinder. The outer sleeve has a smooth inner bore with a circular cross section concentric with the cylinder. The outer sleeve is arranged to slide along the outer wall of the cylinder to provide a sliding linear bearing that resists lateral loads that would otherwise be taken up by the piston and piston rod at their contacts with the cylinder. The sleeve distributes the lateral load over a greater surface area and supports the forces with a stronger structure than conventional assemblies. The sleeve, cylinder and piston have concentric circular cross sections to permit rotation about the central axis without binding. The sleeve has a lubricous plastic lining to enhance sliding contact with the outer wall of the cylinder.

REFERENCES:
patent: 3045649 (1962-07-01), Blatt
patent: 3150564 (1964-09-01), McMullen
patent: 3335642 (1967-08-01), Rosaen
patent: 3353352 (1967-11-01), Gardner
patent: 3592108 (1971-07-01), Rosaen

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