Device for spot welding of structures constituted by metal elements, particularly motor-vehicle bodies or sub-assemblies thereof
CA 2217807 C · Owner: Comau Spa · Inventors: Alborante, Giancarlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A welding station, for example for welding motor-vehicle bodies, receives only a part of the structure to be welded from a conveyor line, the remaining components of the structure being assembled with said part (3) at the welding station itself by means of two, locating gates (6,7) which receive said components from manipulating robots (10), said robots also providing for carrying out the spot welding of the structure once the latter has been assembled and locked in a proper welding position by said locating gates (6 7). The, locating gates are provided with self-propelled lower trolleys guided on rails, in order to be rapidly interchanged with another pair of locating gates adapted to a …
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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 October 7, 1997 and granted April 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 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.