Device for the heat treatment of powdery or granular materials
CA 1161907 A · Owner: Soulier, Joel · Inventors: Soulier, Joel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel device for the heat treatment of divided material e.g. powdery or granular material is provided herein. The device includes a two-part wave-guide comprising (a) a sleeve made from a conducting material provided with dividing walls made from a conducting material the, walls being perpendicular to such sleeve the free space between the, dividing walls having a lining made from a non-polar material and (b) a, movable part formed by a helix made from a conducting material, adapted to rotate about an axis, the pitch of the helix corresponding exactly to the distance which separates two adjacent dividing walls with which the sleeve is provided, the movable part of the wave-guide further …
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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 February 7, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2001.
- 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.