Cupola furnace waste gas recuperative system and method for operating same
CA 1061550 A · Owner: Whiting Corporation · Inventors: Van Dril, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An improved cupola furnace waste gas recuperative system and method for collecting waste furnace gases cleaning, them, and burning same in a recuperator-heat exchanger for preheating incoming furnace blast air. The improvement includes a method and means for the recirculation of waste cupola furnace gases through a portion of the scrubber or cleaning system for the purposes of; controlling the pressure at the furnace gas take-off chamber, preventing gases from escaping through the charging hopper, preventing excess indraft of air, and maintaining cleaning efficiency at any gas flow rate. The improvement also includes a control means whereby the actual top gas …
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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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 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.