A contact tip for gas-metal-arc-welding
CA 2435627 A1 · Owner: Setchensky, Hristo S.H. · Inventors: Setchensky, Hristo S.H.; Ivanov, Bojidar I.B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The contact tip is used for electric arc welding in a protective gas medium (MIG-MAG, welding) or under a layer of flux feeding the wire electrode from the wirefeeding device, through the tip torch to the weld zone simultaneously conducting current to , the wire. The aperture comprises sectors with triangular and circular cross section or the aperture shape can, be helical with a triangular cross section and part of its sector with a , triangular cross section can be fabricated as a separate bush. The wire electrode contacts the walls and arms of the, angles of the triangular aperture and it has minimal elastic energy. The shape of the wire feed, aperture provides simultaneous increase …
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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
- Filed July 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2025.
- 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.