Shaft-furnace direct-reduction process for producing highly reduced iron-bearing material
CA 1088315 A · Owner: Uss Engineers And Consultants, Inc. · Inventors: Waslo, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed for reducing iron ore wherein spent reducing gas may be used as fuel in a reformer and a, portion of the reformer product is used as cooling gas in the bottom of the shaft furnace to lower the temperature of the reduced product. According to another aspect of the invention the, method includes the further steps of regulating the rate at which the reduced product is cooled in order to render the product more stable and thereby more suitable for cooling.
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 October 28, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 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
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.