Nozzle for thermal spray of low oxide content coatings
CA 2479811 A1 · Owner: Mostaghimi, Javad · Inventors: Mostaghimi, Javad; Dolatabadi, Ali; Pershin, Valerian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a spray gun (10) with associated nozzle attachments for high deposition efficiency for thermal spray of high quality dense, low oxide content coatings. The spray guns (10) are used to produce coatings using a thermal spray process a high velocity oxy-fuel process, a , high velocity air-fuel process cold spraying, and plasma spraying in which the process is characterised by having an over-expanded flow with a Mach number from about 1.0 to about 4.0 which have passageway (28) section which diverges to the gun outlet. In one embodiment the nozzle attachment is another diverging section (24) with a greater angle of divergence than the diverging nozzle …
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 March 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2025.
- 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.