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Expired Canadian patentCanada

System and method for minimizing loss of electrical conduction during input of feed material to a furnace

CA 2578069 C · Owner: Hatch Ltd. · Inventors: Sedighy, Mohammad

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Abstract From the Canadian patent

Methods and systems for stabilizing energy consumption in multiple loads or , in single , multi-phase loads. Methods and systems provide an electrode position controller , coupled to the feed rate controller so as to predictively anticipate the introduction of new , source material and lower the electrodes so as to prevent arc extinguishment while the , variable reactors maintain predetermined power set-points. The electrode position , controller may be used in place of the variable reactance control system to take , corrective action to address power and/or current changes or unbalances.

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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 August 30, 2005 and granted January 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 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.
FiledAugust 30, 2005
GrantedJanuary 21, 2014
Term endedAugust 30, 2025
Patent numberCA 2578069 C
Classification (IPC)H05B7/14 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 30, 2005Patent grantedJan 21, 2014Term endedAug 30, 2025

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