Process of resistance welding of metal parts
CA 2339843 A1 · Owner: Mack, Joachim · Inventors: Mittler, Bodo; Mack, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for resistance welding metal parts. At least one welding electrode (4) is configured as a circular cylinder which is rotationally mounted about the axis thereof in order to improve welding quality. According to the invention, the cylindrical welding electrode (4) is rotated at least during the welding of the metal parts (1 2). By producing , gliding friction between the outer surface of the welding electrode (4) and the surface of the metal part lying thereon said surface can become devoid of , impurities. The inventive method is particularly suitable for welding sandblasted molybdenum foils with tungsten filaments.
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 June 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2022.
- 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.