Device for controlling the rate of movement of a piston rod rela

Details Device for controlling the rate of movement of a piston rod rela Device for controlling the rate of movement of a piston rod rela

1988-06-20

1989-09-12

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

With means for locking parts together temporarily

24569, 267 6412, F16F 932, F16F 500, A44B 2100

Patent

active

048651699

ABSTRACT:
A clamping device for use with a gas spring in the form of a cylinder containing a gas, and a piston and piston rod movable within the cylinder. The clamping device is secured to the end of the cylinder through which the piston rod passes, and includes a clamping portion that engages and clamps around the piston rod to provide resistance to movement of the piston rod relative to the cylinder. The clamping device is a U-shaped structure having clamping legs that can be moved toward each other by a bolt and nut arrangement. The clamping device can be made from an injection molded plastic material, and the device permits continued use of the gas spring after the gas pressure has diminished to a level at which replacement of the spring would otherwise be required.

REFERENCES:
patent: 1055030 (1913-03-01), Gibbs
patent: 1062575 (1913-05-01), Gibbs
patent: 1115539 (1914-11-01), Hoferle
patent: 3566435 (1971-02-01), Nakamura
patent: 3579708 (1971-05-01), Lee
patent: 4217061 (1980-08-01), Eiland et al.
patent: 4309027 (1982-01-01), Molders et al.
patent: 4415194 (1983-11-01), Bauer
patent: 4507105 (1985-03-01), Stottmann et al.
patent: 4634170 (1987-01-01), Lach

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