Continuously self-compensating hydraulic positioner

Details Continuously self-compensating hydraulic positioner Continuously self-compensating hydraulic positioner

1991-12-18

1993-05-18

Halvosa, George E. A.

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

188 111, 188300, 188314, 267 6412, 267225, F16F 910

Patent

active

052113795

ABSTRACT:
A hydraulic positioner for seats includes a cylinder and piston structure with a piston rod secured to the piston and extending from the cylinder. A reservoir is provided in the cylinder by a gland jointly biased by a first spring located within the cylinder and a second spring which also urges the piston rod to an extended position. A sleeve is movable by the gland for visual indication of the hydraulic fluid in the cylinder.

REFERENCES:
patent: 2630887 (1953-03-01), Paquin
patent: 3860098 (1975-01-01), Porter et al.
patent: 4078778 (1978-03-01), Hubweber
patent: 4515034 (1985-05-01), Porter

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