Separation of pollutants in the incineration of municipal solid waste
CA 2068911 A1 · Owner: Westinghouse Electric Corporation · Inventors: Lippert, Thomas Edwin; Newby, Richard Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
56,682, ABSTRACT OF THE DISCLOSURE, Incineration of municipal solid waste (MSW) produces pollutants including hydrochloric acid hydro-, fluoric acid, sulfur compounds particularly sulfur oxides nitrogen oxides, carbon monoxide and flyash. Disposal of MSW by incineration is not acceptable unless these pollutants are eliminated or reduced to a very small fraction. There is disclosed a method of processing the products of combustion of the incineration of MSW in whose practice the products of combustion are passed through a fluid-bed filter contactor including ceramic candle filters. The products of combustion are reacted with sorbents either in the contactor or in the channel through which …
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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 19, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2014.
- 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.