Continuously lockable adjustment device

Details Continuously lockable adjustment device Continuously lockable adjustment device

2007-07-03

2007-07-03

Lazo, Thomas E. (Department: 3745)

Motors: expansible chamber type

With motive fluid valve

Valved piston

C092S015000, C092S169100, C092S184000

Reexamination Certificate

active

11077095

ABSTRACT:
A continuously lockable adjustment device for immobilizing elements which are movable relative to each other includes a stepped cylinder having a first cylinder step and a second cylinder step, the second cylinder step having a larger cross-sectional area than the first cylinder step, a stepped piston having a first piston step guided in the first cylinder step and a second piston step guided in the second cylinder step, and a piston rod connected to the piston opposite the first piston step and extending sealed off out an end of the cylinder. The cylinder has a first working space and a second working space separated by the piston and filled with a working fluid in which the piston can be displaced axially, thereby displacing working fluid from one working space to the other working space.

REFERENCES:
patent: 4041840 (1977-08-01), Zirps
patent: 4166612 (1979-09-01), Freitag et al.
patent: 4588054 (1986-05-01), LeBaron
patent: 5623861 (1997-04-01), Ward et al.

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