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Expired Canadian patentCanada

Part loading apparatus having harmonically driven shuttle and pivotal part supporting frame

CA 2117539 C · Owner: Progressive Tool & Industries Co. · Inventors: Oldford, Keith A.; Dugas, Michael R.; Kenny, Patrick J.

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 part loading apparatus is disclosed for transporting a workpiece from a first position generally in a first plane to a second position generally in a second plane for transfer to another work station. The part loading apparatus includes a rail for transporting the workpiece between the first and second positions. A shuttle is on the rail for reciprocally moving between the first and second positions. A drive motor is provided for harmonically driving the shuttle between the first and second positions, wherein the shuttle decelerates when approaching the first and second positions, and accelerates when leaving the first and second positions. A frame carries the workpiece from the first …

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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 August 23, 1994 and granted April 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 23, 1994
GrantedApril 28, 1998
Term endedAugust 23, 2014
Patent numberCA 2117539 C
Classification (IPC)B65G47/74 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedAug 23, 1994Patent grantedApril 28, 1998Term endedAug 23, 2014

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