Method of making weld beads in welding of tubes to a tube sheet
CA 1165406 A · Owner: Framatome · Inventors: Batistoni, Michel; Georges, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of making a great number of weld beads in the form of independent contours spaced apart by means of an automatic welding head comprising a torch and means for displacing the torch in several directions allowing the latter to follow each contour one after the other. The method is characterized by the fact that after striking of the arc and positioning of the torch on the first contour to be welded and then making of the first weld bead have been effected in a known way the, torch current is decreased to effect a partial fading out of the arc. A displacement of the torch is then effected as far as a starting position on a second contour to be welded and a, timed stationary preheat is …
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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
- Granted April 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2001.
- 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.