Patent Yard Sign in
Expired Canadian patentCanada

Apparatus and method for use in winding coils

CA 1051643 A · Owner: General Electric Company · Inventors: Arnold, Richard B.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

One disclosed method includes positioning an end of a wire strand adjacent to a propelling mechanism and near a contorted guide tube entry and then propelling the lead end of the wire through the contorted tube. An air passage block and air supply means may be used to established a venturi type effect at the end of the tube. With the wire end positioned adjacent the tube entry, with or without wadding air injected, into the air passage propels the wire. Also disclosed is a method of damping oscillations of wire segments that are being dispensed in a winding plane and the disclosed apparatus includes an oscillation damping plate mounted substantially along winding plane. Another method …

Read the whole patent

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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 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—
GrantedApril 3, 1979
Term endedApril 3, 1996
Patent numberCA 1051643 A
Classification (IPC)B21F3/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedApril 3, 1979Term endedApril 3, 1996

Sources & verification

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