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Expired Canadian patentCanada

Method of and apparatus for aligning and assembling disk-shaped works having projections on outer peripheries thereof

CA 1324252 C · Owner: Watanabe, Tohru · Inventors: Watanabe, Tohru

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

There is disclosed a method and apparatus for aligning and assembling disk-shaped works having projections on outer peripheries thereof. A vessel-shaped work is positioned and a plurality of disk-shaped works in a stacked condition are guided to a position on the opening edge of the vessel-shaped work by the work guide means, and then the pin provided for up and down movement on the rotary head is either inserted between adjacent ones of the projections of the disk-shaped works or contacted with and stopped by an upper face of one of the projections of the disk-shaped works. Also when the pin is stopped by the upper face of the one projection, as the rotary head is rotated the pin is moved, …

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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 November 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 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.
FiledJanuary 31, 1989
GrantedNovember 16, 1993
Term endedNovember 16, 2010
Patent numberCA 1324252 C
Classification (IPC)B23Q3/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJan 31, 1989Patent grantedNov 16, 1993Term endedNov 16, 2010

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