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Expired Canadian patentCanada

Shedding mechanism for travelling-wave looms

CA 1065740 A · Owner: Vsesojuzny Nauchno-Issledovatelsky Institut Legkogo I Textilnogo Mashino Stroenia · Inventors: Kovalev, Gennady I.; Selivanov, Anatoly G.

CIPO record

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

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Abstract From the Canadian patent

The present invention relates to shedding mechanisms most advantageously used on wide travellingwave looms. These mechanisms comprise systems of heald shafts and cams rigidly secured on a drive shaft imparting, to the heald shaft dephased motion and arranged in groups in a housing so that individual drive sections are formed additional heald shafts coupled with the cophasal main heald shaft being installed therebetween. Such an arrangement enables the loom width to be more fully utilized wide fabrics to be woven and the width of the fabric produced to be varied.

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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 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedNovember 6, 1979
Term endedNovember 6, 1996
Patent numberCA 1065740 A
Classification (IPC)D03D47/26

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 6, 1979Term endedNov 6, 1996

Sources & verification

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