Ceramic welding process and lance for use in such process
CA 2026944 A1 · Owner: Mottet, Leon-Philippe · Inventors: Mottet, Leon-Philippe; Zivkovic, Alexandre; Robyn, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic welding process which facilitates the formation of high quality erosion-resisant and corrosion-resistant refractory weld masses comprises projecting against a surface (1) an oxidisable mixture of refractory particles and particles of a fuel material in a carrier gas (7) which contains at least sufficient oxygen for substantially complete oxidation of the fuel particles, whereby sufficient heat is released for at least surface melting of the projected refractory particles and a ceramic weld mass is formed against said surface (1) under the heat of oxidation of the fuel particles, wherein at least one additional stream of gas (9) is projected against said surface (1) so as to form a …
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 October 4, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2012.
- 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.