System for welding strutures composed of sheet metal, with prepositioned tools
CA 2002398 A1 · Owner: Di Rosa, Gaetano · Inventors: Di Rosa, Gaetano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention consists of a work station for welding sheet metal structures, for example the bodies of motor vehicles, to which the structures are fed in succession. Said station is provided with a pair of opposing movable elements carrying positioning, clamping and if necessary, welding tools disposed in units comprising a plurality of said tools disposed fanwise. Each of the tools of said plurality is movable from an operative position to a retracted non-operative position so as to be able to work, or not work, on a body disposed between the pair of opposing movable elements. Each time the model of the body arriving at the station is changed, the tools of each plurality are selectively …
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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 7, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2011.
- 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.