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Expired Canadian patentCanada

Cutting apparatus for flatbed sewing machines

CA 1054451 A · Owner: Bata Industries Limited · Inventors: Baran, Miroslav

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 cutting apparatus for cutting a strip of tape connected to a shoe upper component and extending beyond the edges thereof includes a blade for cutting the tape and presser feet for tensioning the tape during cutting. The blade and presser feet are independently actuated by, plungers, which are slidable in a casing mounted on the sewing machine used to sew the tape onto the upper component. The plungers are provided with magnetic cores and separate, coils around the cores are energized in response to signals from photosensors in the work surface of the sewing machine to effect tensioning of the tape, followed by cutting at the edge of the upper component. Springs in the casing around the …

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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 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 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—
GrantedMay 15, 1979
Term endedMay 15, 1996
Patent numberCA 1054451 A
Classification (IPC)D05B37/04 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 15, 1979Term endedMay 15, 1996

Sources & verification

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