Method of operating a metallurgical furnace and a metallurgical furnace apparatus
CA 1250427 A · Owner: James Howden & Company Limited · Inventors: Watson, Robert K.; Cooper, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of operating a metallurgical furnace and a, furnace apparatus capable of using this method in which, coal is pulverized in a pulverizer vessel by interparticle collisions in at least one stream of gaseous medium to, produce ultrafine pulverized coal and feeding a mixture of the ultrafine pulverized coal and gaseous medium directly and continuously from the pulverizer vessel to the metallurgical furnace.
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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 February 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 28, 2006.
- 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.