Cyclone
CA 1289913 C · Owner: F.L. Smidth & Co. A/S · Inventors: Elkjaer, Hans P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
CYCLONE, Abstract of the Disclosure, A cyclone for treating pulverous raw material suspended in a hot gas stream, for use, for example, in a suspension preheater plant for treating cement raw materials and similar materials comprises a tubular chamber with a vertical axis a cone shaped, bottom with a central outlet for precipitated material a central, outlet for hot gases at the top of the chamber and a tangential inlet for hot air. The inlet has a chamfered wall causing the suspension stream entering the cyclone through the duct leading to the inlet to be deflected outwards against the inner surface of the chamber wall and downwards into the cyclone chamber.
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 October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
- 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.