Counterbalanced support

Details Counterbalanced support Counterbalanced support

1980-02-27

1982-03-09

Watson, Robert C.

Work holders

Miscellaneous

A61G 1300

Patent

active

043185380

ABSTRACT:
A counterbalanced support, for example for supporting a patient or a radiation source in X-ray diagnosis or therapy, comprises a supporting frame movably mounted on a base by means of a parallelogram linkage. This linkage comprises two parallel rods which are pivotally connected to the supporting frame and the base. One of the rods has an arm formed thereon. A constant force is applied to the arm for counterbalancing the weight of the supporting frame and its load. This force is supplied by a pneumatic pulling device via apparatus which are freely movable with respect to the base, so that a substantially constant pulling force is exerted on the arm in a direction which extends at a fixed angle to the vertical.

REFERENCES:
patent: 3089692 (1963-05-01), Blomquist
patent: 4139917 (1979-02-01), Fenwick
patent: 4188540 (1980-02-01), Reiniger

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