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Expired Canadian patentCanada

High-voltage loadbreak bushing insert connector

CA 1320522 C · Owner: Amerace Corporation · Inventors: Kominiak, Andrew A.; Borgstrom, Alan D.; Stepniak, Frank M.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A simplified electrical high voltage loadbreak bushing insert connector is disclosed which provides an improved electrical current path between a bushing well and a male probe contact during fault and activated closure while eliminating the usual prior art internal conductive sleeve contact. A solid contact, directly coupled to a bushing well stud, electrically engages a tubular extension of the movable female contact assembly during movement of the assembly over its entire range. In a first group of embodiments, contact is made with the interior of the tubular extension while in others with the exterior. Various stop member arrangements are disclosed to limit movement of the female contact …

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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 July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 13, 1989
GrantedJuly 20, 1993
Term endedJuly 20, 2010
Patent numberCA 1320522 C
Classification (IPC)H01R13/53 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJuly 13, 1989Patent grantedJuly 20, 1993Term endedJuly 20, 2010

Sources & verification

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