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Expired Canadian patentCanada

Pallet conveyor with chain drive recirculating in a horizontal plane

CA 2500697 C · Owner: Strange, David M. · Inventors: Strange, David M.

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 conveyor using a drive chain to drive pallets along a closed loop path on a track lying in a horizontal plane through inside and outside turns so that the conveyor may transport parts along non aligned stations. An advance and a return run extend parallel to each other and are closely spaced to minimize the floor space required. The drive chain is engaged by two spaced apart sprockets engaging a respective side of the drive chain the sprockets mounted to the pallet on a pivoted bar spring biased to urge the sprocket teeth into engagement with the chain. The sprocket bar is pivotally mounted to one end of the swing bar which has an opposite end connected to the pallet to allow the chain …

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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 March 15, 2005 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 15, 2005
GrantedJanuary 24, 2012
Term endedMarch 15, 2025
Patent numberCA 2500697 C
Classification (IPC)B65G21/20 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 15, 2005Patent grantedJan 24, 2012Term endedMarch 15, 2025

Sources & verification

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