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Expired Canadian patentCanada

Combination ribbon string-up and winder apparatus

CA 1237113 A · Owner: Metglas, Inc. · Inventors: Seal, David B.; Devore, Henry S.; Windeler, Christopher L.

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

The apparatus and method of this invention provides for the automatic, inline string-up of a rapidly advancing filament, particularly a glassy alloy strip from a high speed continuous casting operation onto a rotating winding wheel. A take-up head comprised of two counter-rotating brush rollers having selectable interference and speed of counter rotation captures a leading segment of the advancing filament. The brush rollers are mounted on a carrier arm pivotable about the rotational axis of the winding wheel. As an actuator mechanism pivots the carrier arm, the brush rollers move around the winding wheel to contact a segment of the filament with the winding surface of the wheel. A cut and …

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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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 1984
GrantedMay 24, 1988
Term endedMay 24, 2005
Patent numberCA 1237113 A
Classification (IPC)B65H54/02 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJan 18, 1984Patent grantedMay 24, 1988Term endedMay 24, 2005

Sources & verification

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