Hydraulic telescopic damper

Details Hydraulic telescopic damper Hydraulic telescopic damper

1990-11-06

1992-07-21

Peters, Jr., Joseph F.

Brakes

Internal-resistance motion retarder

Cylinder structure

188282, 188284, 267226, 267127, F16F 900, F16F 950, F16F 700, B60G 1300

Patent

active

051315122

ABSTRACT:
In a hydraulic telescopic damper with a cylinder (10) and a piston (12) which has a check valve (O-ring 18) and a narrow opening (22), a valve member (30) is mounted on the side of piston (12) away from the pressure side. Valve member (30) is urged by the force of a spring (36) in a locking position of piston (12) and keeps opening (22) closed. The telescopic damper thereby locks automatically. Exerting an additional manual force on the piston rod can release the self-locking action once more.

REFERENCES:
patent: 2838300 (1957-04-01), Gray
patent: 3151706 (1964-10-01), Dillenburger et al.
patent: 3893550 (1975-07-01), San Pablo De La Rosa

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