Low nox flat flame burner
CA 2285212 A1 · Owner: North American Manufacturing Company · Inventors: Newby, John N.; Shannon, Robert A.; Nieszczur, Keith J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flat flame burner (30) is disclosed having flow passages (32 42) for , admitting fuel and air to a burner tile. A structure (34) for producing a rotational flow cooperates with a divergent burner tile (36) in order to produce a radially-divergent flame with a very small axial component and a high degree of entrainment of inert combustion products in a furnace. A portion of the fuel is injected into the entrained furnace products in order , to suppress the rate of combustion so as to produce an ultra low NOx flat flame burner. The present invention also permits greater versatility and operability over previous flat flame burners.
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 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2020.
- 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.