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Expired Canadian patentCanada

Drive for linear pick-and-place assembly apparatus

CA 2114879 C · Owner: Emerson Electric Co. · Inventors: Sandrock, Don G.

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

An improved drive apparatus for use with linear pick-andplace assembly devices is disclosed, which drive apparatus includes a movable carriage having an improved guide track assembly. The guide track assembly comprises a series of Vrollers and mating V-tracks to provide the vertical and horizontal translational movements for a linear pick-and-place assembly device's output member. The guide track assembly includes V-roller elements which can be eccentrically adjusted to create a tight, pre-loaded sliding engagement with the mating Vtracks, all so as to substantially eliminate any undesired end play movement within the movable carriage.

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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 February 3, 1994 and granted May 13, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 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.
FiledFebruary 3, 1994
GrantedMay 13, 1997
Term endedFebruary 3, 2014
Patent numberCA 2114879 C
Classification (IPC)B65G47/90 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 3, 1994Patent grantedMay 13, 1997Term endedFeb 3, 2014

Sources & verification

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