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Expired Canadian patentCanada

Multi-piece flexural pivot

CA 2030014 C · Owner: Lucas Aerospace Power Transmission Corp. · Inventors: Salerno, Daniel J.; Gupta, Subhash C.; Backus, Robert O.

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 flexural pivot is configured as a multi-piece device which is specifically configured to tolerate vibration and shock loading. The flex pivot described uses pre-formed unitary (one-piece) support structures which have integral undercut areas, diametrically opposed slots for flexural member placement and key ways and the like, and near net shape geometry. The flexural members are pre-brazed to facilitate the assembly process. The design of the pre-formed support structures eliminates brazed joints which are common locations of fracture due to vibration and shock loading, resulting in a significantly strengthened pivot. The overall configuration and method described provides an economical …

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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 November 14, 1990 and granted October 11, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 1990
GrantedOctober 11, 1994
Term endedNovember 14, 2010
Patent numberCA 2030014 C
Classification (IPC)B23P15/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 14, 1990Patent grantedOct 11, 1994Term endedNov 14, 2010

Sources & verification

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