Method of lifting or lowering an object by means of a plurality of so-called climbing jacks
CA 1056122 A · Owner: Paul Anderson Industrier Ab · Inventors: Mattson, Arne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of lifting or lowering of an object by means of a plurality of so-called climbing jacks capable to climb each along a climb rod. The method comprises the steps of staying the rods slidably by means of associated support structures arranging each, rod on a jack, which jacks are held separated from each other from a load point of view, and ajusting the height position of the climb rods in relation to each other by means of the respective jack in order to minimize the stresses in the object caused by the lifting operation.
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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 June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
- 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.