Method and apparatus for starting the boiler of a solid-fuel fired power plant and ensuring the burning process of the fuel
CA 2045541 A1 · Owner: Salmelin, Pentti · Inventors: Salmelin, Pentti
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention concerns a method and apparatus for starting the boiler of a solid-fuel fired power plant and for ensuring the burning process of the fuel. According to the invention the main, fuel of the boiler is ignited by entering an auxiliary fuel stream gasified and ignited with a plasma torch (1). Efficient mixing and safe ignition of the main fuel with the auxiliary fuel is ensured by means of turbulent feed of the auxiliary fuel and a nozzle (12) through which the auxiliary fuel is entered into the main fuel stream.
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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
- Filed January 12, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 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.