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Expired Canadian patentCanada

Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore

CA 2546364 C · Owner: Henrysson, Jonas · Inventors: Henrysson, Jonas; Hartwig, Sverker

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Abstract From the Canadian patent

Method for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process which , includes at least the sub-processes of percussion and/or rotation and flushing, the method comprising the steps of: - adjusting the flush power at least partly as a function of hole depth and controlling at least the , percussion power and/or rotational power and the flush power such that the total power consumption of each sub-process is controlled.

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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 November 29, 2004 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2024.
  • 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.
FiledNovember 29, 2004
GrantedSeptember 17, 2013
Term endedNovember 29, 2024
Patent numberCA 2546364 C
Classification (IPC)E21B21/08 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 29, 2004Patent grantedSep 17, 2013Term endedNov 29, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.