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Expired Canadian patentCanada

Veneer stacking system

CA 1324159 C · Owner: Corvallis Tool Co. · Inventors: Holbert, John C.

CIPO record

Overview

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

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Abstract From the Canadian patent

A veneer stacking system providing the feature of consistent air suction above the multiple veneer stacks enabling reliable separation of the veneer sheets from an overhead conveyor. This consistent air suction is provided by - independent air chambers for each stack. It also includes aligning means for aligning the sheets on the overhead conveyor. An aligning belt replaces a section of one or both of the conveyor belts and is independently driven to speed up or slow down one side of the sheet to achieve the desired alignment. It also includes improved knock-off shoes activated by cylinders connected to master cylinders in a master cylinder housing activated by a common mover piston for …

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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 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 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.
FiledFebruary 6, 1989
GrantedNovember 9, 1993
Term endedNovember 9, 2010
Patent numberCA 1324159 C
Classification (IPC)B07C99/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedFeb 6, 1989Patent grantedNov 9, 1993Term endedNov 9, 2010

Sources & verification

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