Coke-heated circulating gas cupola furnace for material and/or energetic recycling of waste materials having different compositions
CA 2296412 A1 · Owner: Scheidig, Klaus · Inventors: Schaaf, Michael; Mallon, Joachim; Feustel, Hans Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an additional embodiment for the arrangement of a lower annular suction and gas relaxation chamber on a coke-heated circulating gas cupola furnace for material and/or energetic recycling of waste materials having different composition as described in main patent P 196 40 497 in , which suctioning of gaseous organic matter which has been completely broken down into its basic components CO, H2, H2O and CO2 and into its trace components or has been already reformed is not yet reliably prevented. According to the invention, the lower annular suctioning and gas relaxation chamber is arranged below the melting and overheating zone which extends up to the plane …
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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
- Filed May 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2021.
- 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.