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Expired Canadian patentCanada

Method and apparatus for assembling veneer sheet into a plywood

CA 1278737 C · Owner: Hashimoto Denki Co. Ltd. · Inventors: Aizawa, Tadashi; Nishiyama, Toshimichi; Okawa, Masaru

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Abstract From the Canadian patent

A method for assembling veneer sheet into a plywood comprising the steps of supplying the veneer sheets to a feed conveyer, stopping the veneer sheet so that the forward edge thereof is precisely oriented in the transverse direction perpendicular to the feed direction, detecting the position of the veneer sheet in the transverse direction and calculating deviation thereof from a reference line extending along the feed direction by a computor, and transporting the veneer sheet by a transfer unit to a position on an assembling conveyer for fabricating a stepped lamination. The assembling conveyer extends parallel to the feed conveyer and is operated intermittently. The transfer unit includes …

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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 January 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 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.
FiledJune 30, 1987
GrantedJanuary 8, 1991
Term endedJanuary 8, 2008
Patent numberCA 1278737 C
Classification (IPC)B27D1/04 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJune 30, 1987Patent grantedJan 8, 1991Term endedJan 8, 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.