Method and apparatus for the purification of waste gas containing gaseous pollutants
CA 1052291 A · Owner: Taiyo Kaken Company · Inventors: Okamoto, Tsuneo; Murakami, Heiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A process and apparatus for the purification treatment of a waste gas containing gaseous pollutants. The process comprises the steps of upwardly moving the waste gas through a tower, provided in the interior with a multiplicity of substantially horizontal shelves, and at the same time downwardly moving activated carbon particles through the tower allowing, the waste gas and the activated carbon to come into contact with each other and permitting the activated carbon to form a fluidized bed on each of the shelves, thereby causing the gaseous pollutants of the waste gas to be adsorbed on the activated carbon and consequently effecting the removal of gaseous …
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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 April 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 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.