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Expired Canadian patentCanada

Means for controlling a wire discharge from a flyer payoff

CA 1088483 A · Owner: Entwistle Company (The) · Inventors: Murphy, Thomas A.; Long, Richard E.; Tebo, Kenneth L.

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

A wire line includes a flyer payoff and means for controlling the wire discharged from the flyer playoff by a tension system comprising two spaced tensions the first of which comprises two groups of rolls with the rolls of one group staggered with relation to the rolls of the other group with the groups relatively movable toward and from each other to apply more or less tension on the wire as it leaves the flyer payoff with the tension system also including a second tensioning means comprising a drum and a guide sheave spaced therefrom about which the wire is passed with sufficient surface engagement with the drum and sheave so that they will rotate as the wire passes thereover rather than …

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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 October 28, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 21, 1978
GrantedOctober 28, 1980
Term endedOctober 28, 1997
Patent numberCA 1088483 A
Classification (IPC)B65H49/00 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedNov 21, 1978Patent grantedOct 28, 1980Term endedOct 28, 1997

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