Resistance welding apparatus and method
CA 1061420 A · Owner: Reynolds Metals Company · Inventors: Ashton, Richard F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In combination with conventional apparatus for joining members of aluminum or other electrically conducting material by resistance welding adjustable, supports for arranging the work-contacting electrodes in spaced proximity to the work, and circuitry for inducing an inert gas shielded arc of alternating current across each electrode and the work the, apparatus being operable to effect self-cleaning of the electrodes as well as the work between successive welding operations.
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 August 28, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.