Hydraulic valve device and method for assembling the same

Details Hydraulic valve device and method for assembling the same Hydraulic valve device and method for assembling the same

2006-11-07

2006-11-07

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S269000, C137S596120

Reexamination Certificate

active

07131453

ABSTRACT:
An option valve for controlling the operation of an option actuator added as an option is installed into each of first and second main valve blocks in each of which plural control valves, a pressure oil supply line connected to a pump and a tank line connected to a tank are incorporated, and plural types of connection blocks incorporating circuit elements to be added to the option valve are attached to the main valve blocks selectively to constitute a hydraulic valve device. According to this hydraulic valve device, it is possible to widely cope with various option attachments despite a built-in system with the option valve incorporated beforehand in the main valve blocks.

REFERENCES:
patent: 3204662 (1965-09-01), Williams
patent: 5138837 (1992-08-01), Obertrifter et al.
patent: 6430922 (2002-08-01), Tohji
patent: 0 190 431 (1986-08-01), None
patent: 1 253 327 (2002-10-01), None
patent: 10-25770 (1998-01-01), None

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