Consumable electrode arc welding method
CA 2534575 C · Owner: Yoshima, Kazumasa · Inventors: Yoshima, Kazumasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention includes means for, when welding a crater in a welding termination , portion, moving a torch in a direction allowing the whole of the torch to part apart from a , molten pool and, therefore the invention can prevent all welding wires from coming into , contact with the molten pool. Also the invention can check not only the , crater-welded welding wire but also all of the remaining welding wires for deposition and if there is , detected a deposited wire can energize the deposition detected wire again to thereby be , able to remove the deposition of the wire.
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
- Filed April 20, 2005 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.