Counterbalanced support
CA 1135613 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Janssen, Jozef T.A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-2-1980 1 PHN 9367, ABSTRACT:, "Counterbalanced support" A counterbalanced support, for example for, supporting the patient or radiation source in X-ray diagnosis 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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 16, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.