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Expired Canadian patentCanada

Method for fixing an annular element onto a shaft and a shaft assembly obtained by such method

CA 1185803 A · Owner: Toyota Jidosha Kabushiki Kaisha · Inventors: Tsuda, Kazuhiko; Ueda, Katsuhiko; Nakamura, Hitoshi

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Abstract From the Canadian patent

The present invention relates to a method for fixing an annular element onto a shaft. The shaft may be a camshaft and the annular element may be a cam piece or a journal piece used in an automobile. The annular element is fixed onto the shaft by: engaging an axially extending projection of the element with an axially extending groove of the shaft so as to prevent a relative rotating motion; deforming an outer wall of the shaft adjacent to said groove at two positions near the terminating ends of the projection so that the outer wall protrudes into the groove, thereby fixing the element onto the shaft.

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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 April 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 16, 1982
GrantedApril 23, 1985
Term endedApril 23, 2002
Patent numberCA 1185803 A
Classification (IPC)F16D1/06

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 16, 1982Patent grantedApril 23, 1985Term endedApril 23, 2002

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