Apparatus for injection of hot reducing gas into a shaft
CA 1050265 A · Owner: Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallur Gie · Inventors: Ponghis, Nikolas G.; Vidal, Roland J.; Poos, Arthur G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Reducing gas is injected into a shaft furnace by means of a gas supply duct, an injection tube and a tuyere, co-axial with the injection tube. The injection tube comprises a plasma furnace co-axial with and adjacent to the tuyere. While the reducing gas is being injected into the shaft furnace a plasma is generated in the plasma furnace to heat the reducing gas.
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
- Granted March 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 1996.
- 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.