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Expired Canadian patentCanada

Method and apparatus for high speed cable shaping and stranding

CA 2050757 C · Owner: Sanders, Eugene Turner · Inventors: Sanders, Eugene Turner

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 method and an apparatus for the high speed shaping of wires to be used to make a compact stranded cable are disclosed. A plurality of roll pairs for shaping the cross section of a wire in a peripheral groove are mounted to the layhead of a strander apparatus. The rolls of each pair are supported on axles, the axes of which are maintained parallel to each other. At least one of the rolls of each pair is mounted on an axle which is parallelly adjustable toward and away from the other axle. A single adjustment screw is provided for urging the adjustable axle in a direction to engage the peripheries of the rolls.

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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 September 25, 1991 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 25, 1991
GrantedJune 5, 2001
Term endedSeptember 25, 2011
Patent numberCA 2050757 C
Classification (IPC)H01B5/08 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedSep 25, 1991Patent grantedJune 5, 2001Term endedSep 25, 2011

Sources & verification

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