Method and device for laser welding metal sheets
CA 2347427 A1 · Owner: Aebersold, Hans · Inventors: Aebersold, Hans; Wildmann, Daniel; Van Der Schaar, Martin
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 laser welding metal sheets (1 2) with a , butt joint. The inventive method is characterized in that before or in the welding area at least one of the sheets (1 2) is plastically deformed by , means of a squeezer (6) in order to reduce the width of a gap that may exist between the sheets (1, 2). According to the invention the profile produced by , the squeezer (6) in the sheets (1 2) is independent of the junction area (5) of the sheets (1, 2). The invention also relates to a device for carrying out the inventive method.
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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 November 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2021.
- 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.