Laser beam welding method used for assembling two metal parts
CA 2124105 C · Owner: Zanolin, Gerard Louis · Inventors: Havard, Jacques Georges Wilfrid Rene; Zanolin, Gerard Louis; Jouardet, Michel Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process is used to manufacture partitioned housings by executing attachments from the outside of the said housing. The process utilizes two consecutive shots from an inclined laser beam (8A 8B), crossing at the upper surface (1B) of the piece (1) constituting the head of the assembly. The two laser welding trajectories (8A 8B) cut two upper corners (2C) from the piece (2) to form the base of the T. The welding device is placed outside the housing that is to say, on the side of the upper surface (1B) of the head (1) of the T. Application to manufacturing the arms of the external duct of a turbine engine.
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 May 20, 1994 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2016.
- 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.