Low-nox staged combustion device for controlled radiative heating in high temperature furnaces
CA 2184459 C · Owner: Knorr, Robert Ellsworth, Jr. · Inventors: Knorr, Robert Ellsworth, Jr.; Gosling, Thomas Michael; Slavejkov, Aleksandar Georgi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A staged oxy-fuel burner for producing a generally flat fuel rich flame overlying a highly radiative fuel lean flame the burner having a fuel passage terminating in a nozzle the fuel passage and nozzle having a generally elongated cross-section a housing of complementary shape surrounding the fuel passage so that when fuel is introduced into the fuel passage and an oxidizer is introduced into the passage defined by a space between the housing and the fuel passage a generally flat fuel rich flame is produced at the nozzle end of the fuel conduit and a staging nozzle for introducing oxidizer underneath and in a shape complementary to said fuel rich flame to produce a highly radiative fuel …
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 August 29, 1996 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2018.
- 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.