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Expired Canadian patentCanada

High-energy ignition generator especially for a gas-turbine

CA 1331637 C · Owner: Vibro Meter France · Inventors: Balland, Patrick

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

High-energy ignition generator, especially for a gas-turbine ABSTRACT OF TECHNICAL CONTENT OF THE INVENTION This high-energy ignition generation, especially for gas-turbines of the type including an energy source (1) connected to a first circuit containing an energy storage capacitor (10) an inductor (11), and an ignition plug (12) in series, a free-wheel diode (15) being connected in parallel with the terminal of the inductor (11) and the ignition plug (12) and means of short-circuiting (16) the first circuit so as to generate sparks between the electrodes of the plug (12), is characterized in that the means of short-circuiting (16) include at least one semi-conductor switching device …

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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 August 23, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 23, 2011.
  • 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 18, 1989
GrantedAugust 23, 1994
Term endedAugust 23, 2011
Patent numberCA 1331637 C
Classification (IPC)F02C7/26 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 18, 1989Patent grantedAug 23, 1994Term endedAug 23, 2011

Sources & verification

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