Patent Yard Sign in
Expired Canadian patentCanada

Programmable electric resistance welder

CA 1269419 C · Owner: Die-Matic, Incorporated · Inventors: Klein, Robert A.

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

The specification discloses a programmable resistance welder including a work table a gun assembly, a gun transport mechanism a weld control, and a master, control. The gun assembly and transport mechanism are located entirely above the table. The control is coupled to the gun and transport mechanism to move the gun to desired locations on a workpiece supported on the table and perform a desired weld at each location. In a preferred embodiment, the gun assembly includes adjustably spaced electrodes and a mechanism for rotating the gun assembly.

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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 15, 1986
GrantedMay 22, 1990
Term endedMay 22, 2007
Patent numberCA 1269419 C
Classification (IPC)B23K11/10 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedOct 15, 1986Patent grantedMay 22, 1990Term endedMay 22, 2007

Sources & verification

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