Plasma torch with a microwave transmitter
CA 2327093 A1 · Owner: Blum, Heinz-Jurgen · Inventors: Hofmann, Uwe; Blum, Heinz-Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a plasma torch with a microwave transmitter which for example, is used to coat surfaces and to produce radicals. The inventive plasma torch is characterized by exhibiting a minimal energy loss during the transmission of microwaves to the produced plasma flame. The plasma torch comprises a waveguide for the transmitted microwaves and has a coaxial conductor. An electrode provided with a duct and a nozzle provided on the end , of the duct said end facing away from the waveguide are arranged in said , coaxial conductor in an essentially axial manner. The plasma flame is produced at the nozzle. A coupling element is arranged between the waveguide and the coaxial …
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 April 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 1, 2021.
- 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.