Apparatus for friction stir welding
CA 2266613 A1 · Owner: Esab Ab · Inventors: Larsson, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (1) for friction stir welding comprising a welding assembly (12, 13) a work-table (7) supporting the workpiece or workpieces (2 3) to be , welded, and at least one clamping means (5 6) for clamping the workpieces to , one another and/or to the work-table or the workpiece to the work-table, respectively during the welding operation. The apparatus also comprises a device for adjusting the position of the welding assembly (12 13) in the , height direction relative to the work-table (7) during the welding assembly movement in the longitudinal direction of the welding joint formed during the welding operation in order to provide an optimum distance between the worktable and the …
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 September 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
- 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.