X-ray apparatus comprising a hydraulic system

Details X-ray apparatus comprising a hydraulic system X-ray apparatus comprising a hydraulic system

1993-12-06

1995-03-07

Porta, David P.

X-ray or gamma ray systems or devices

Source support

Including movable source

378193, 378195, H05G 102

Patent

active

053965353

ABSTRACT:
An X-ray apparatus includes a hydraulic system for counterbalancing and for displacing an apparatus section; the hydraulic system includes; cylinder with two cylinder chambers whose volumes vary in the opposite sense upon displacement of the apparatus section, and which can be coupled to a hydraulic drive via two respective hydraulic lines. Reliable operation and simple construction are achieved in that the hydraulic drive includes a pump circuit with a flow line and a return line, a control device being provided for optionally blocking or connecting the flow line to one of the two hydraulic lines, the two hydraulic lines communicating with the return line via a valve device which is weighted so that the hydraulic line of higher pressure is still closed relative to the return line but the hydraulic line of lower pressure is open relative to the return line.

REFERENCES:
patent: 4630796 (1986-12-01), Kayser et al.
patent: 4964149 (1990-10-01), Little
patent: 5050202 (1991-09-01), Yanome

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