Method and apparatus for purifying gases
CA 1113024 A · Owner: Ahlstrom (A.) Osakeyhtio · Inventors: Sannholm, Krister; Ruottu, Seppo; Arhippainen, Bengt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for purifying gases containing molten and evaporated components and for recovering smelt and possibly heat as well. The hot gases are caused to pass at a high velocity, through a channel, provided with turbulence generating means to which molten particles adhere when impinging against them, thereby being separated from the gases. At the same time the gases are indirectly cooled by a fluid flowing through the turbulence generating means whereby evaporated components condense on their surfaces.
Read the whole patent
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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
- 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.