Method of operating a blast furnace to extract carbonaceous oil and gas from bituminous materials
CA 1163588 A · Owner: Claflin, H. Bruce · Inventors: Claflin, H. Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blast furnace is employed to process a natural material selected from the group consisting of oil shale oil sandstone, asphalt rock or, mixtures thereof. A first carbonaceous material selected from the group consisting of oil shale, oil sandstone asphalt rock or mixtures thereof, and a second carbonaceous material are charged to the top of a blast furnace and the carbonaceous char material remaining when the burden reaches the lower portion of the blast furnace in front of the primary tuyeres is burned to provide a hot, upwardly-moving gas stream containing CO and H2 to vaporize recoverable hydrocarbons contained in the carbonaceous material as the carbonaceous material moves downwardly …
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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 March 13, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2001.
- 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.