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Expired Canadian patentCanada

Electrical arc interruption chamber, in particular for fluid-quenched circuit breakers

CA 1289604 C · Owner: Talpo, Gianpietro · Inventors: Muscaglione, Giuseppe; Talpo, Gianpietro

CIPO record

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Abstract From the Canadian patent

ELECTRICAL ARC INTERRUPTION CHAMBER, IN PARTICULAR FOR FLUID-QUENCHED CIRCUIT BREAKERS", Abstract of the Disclosure The present invention relates to an electrical arc interruption chamber, in particular for fluid-quenched circuit breakers, in which, inside a tightly sealed insulating encasing, continuing an arc-quenching gas provided are current-bearing connections respectively, supporting a movable main contact and a stationary main contact, each one of the main contacts being provided with its respective arc contact, and wherein the movable arc contact of the tulip type is positioned inside a wall element of insulating maternal, having e.g. the shape, of an upside-down bell the movable …

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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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 14, 1986
GrantedSeptember 24, 1991
Term endedSeptember 24, 2008
Patent numberCA 1289604 C
Classification (IPC)H01H33/70

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 14, 1986Patent grantedSep 24, 1991Term endedSep 24, 2008

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