A - Human Necessities – 61 – G
Patent
A - Human Necessities
61
G
155/14
A61G 15/00 (2006.01) A61G 15/02 (2006.01)
Patent
CA 1135613
1-2-1980 1 PHN 9367 ABSTRACT: "Counterbalanced support" A counterbalanced support, for example, for supporting the patient or radiation source in X-ray diag- nosis or therapy, comprises a supporting frame (3) movably mounted on a base (2) by means of a parallelogram linkage (1). This linkage comprises two parallel rods (20 and 21) which are pivotally connected to the supporting frame and the base and one of which is formed with an arm (26) to which a constant force is applied for counterbalancing the weight of the supporting frame and its load. This force is supplied by a pneumatic pulling device (37, 38) via means (36, 39) which are freely movable in the base so that a substantially constant pulling force is exerted on the arm (26) in a direction which extends at a fixed angle to the vertical. Figure 1.
346343
Fetherstonhaugh & Co.
N.v. Philips Gloeilampenfabrieken
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