Method and apparatus for producing steel from solid products high in iron
CA 1075897 A · Owner: Institut De Recherches De La Siderurgie Francaise · Inventors: Berthet, Aristide; Vayssiere, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method, and an apparatus for the execution thereof relating, to the production of steel from solid charged products rich in iron whereby, there is introduced into a melting and refining vessel a solid ferrous, charge previously heated in a first rotary furnace by combustion of the, refinery gases produced in the refining vessel and then, in a second rotary, furnace by the controlled addition of external calories by means of a burner permitting adjustment of the final temperature of solid ferrous charge prior to its introduction into the refining vessel.
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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
- Granted April 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 1997.
- 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
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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.