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Expired Canadian patentCanada

Control system for an arc furnace

CA 2623183 C · Owner: Vermeulen, Theunis Johannes · Inventors: Vermeulen, Theunis Johannes; Perry, Kevin Philippe Daniel

CIPO record

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Abstract From the Canadian patent

A control system for and method of controlling a vertical position of at least one electrode of an arc furnace, where the arc furnace comprises a furnace transformer having a primary, input side and a secondary output side which is , electrically connected to the at least one electrode the control system , comprising : at least one current-measuring device for measuring a current as drawn by the arc furnace; a voltage-measuring device for measuring a voltage as applied across the arc furnace; and a control unit for dynamically determining a setpoint for the vertical position of the at least one electrode based on the measured values of current and voltage and providing an , actuating …

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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 September 12, 2006 and granted June 23, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2026.
  • 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.
FiledSeptember 12, 2006
GrantedJune 23, 2015
Term endedSeptember 12, 2026
Patent numberCA 2623183 C
Classification (IPC)F27B3/28 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 12, 2006Patent grantedJune 23, 2015Term endedSep 12, 2026

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