Hydraulic crane
CA 2507293 C · Owner: Cargotec Sweden Aktiebolag · Inventors: Andersson, Lars
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for determining a present value of the capacity level of a hydraulic crane (1) provided with a lifting cylinder (8) the present value of the capacity level being determined by means of a processing unit (33). The initiation of each new lifting cycle of the crane is detected and a minimum value of each lifting cycle is registered which represents the lowest hydraulic pressure on the piston side (8a) of the lifting cylinder during the lifting cycle or the lowest cylinder force of the lifting cylinder during the lifting cycle. For at least some of the lifting cycles the processing unit (33) determines the present value of the capacity level of the crane taking …
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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
- Filed May 12, 2005 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.