Locking block

Details Locking block Locking block

2005-06-14

2005-06-14

Michalsky, Gerald A. (Department: 3753)

Fluid handling

Systems

With flow control means for branched passages

C091S446000, C137S596200

Reexamination Certificate

active

06904938

ABSTRACT:
There is disclosed a stop block for controlling a hydraulic consumer in which a main piston having an advanced opening can be lifted off a valve seat in a return function by means of a push piston. A pressure chamber confined by the main piston on the one hand and by the control piston on the other hand is connected to a tank or low-pressure passage both in the return function and in the non-return function of the stop block so that the change-over from the return function to the non-return function and vice versa can be effected very quickly.

REFERENCES:
patent: 6073654 (2000-06-01), Dettmers et al.
patent: 6196247 (2001-03-01), Knoell et al.
patent: 23 09 406 (1974-09-01), None
patent: 34 20 214 (1985-12-01), None
patent: 196 46 443 (1998-05-01), None
patent: 197 34 479 (1998-05-01), None

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