Gas distribution plate for fluidisation
CA 1282227 C · Owner: Bp Chemicals Limited · Inventors: Raufast, Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 6156/B158(2), ABSTRACT OF THE DISCLOSURE Gas distribution plate for fluidisation The present invention relates to a fluidised bed apparatus comprising a fluidisation grid arranged in the lower part of this apparatus, this grid being provided at its centre with a circular aperture communicating with a discharge chamber and occurring in the form of a surface of revolution consisting of the Joined lateral surfaces of at least two coaxial truncated cones of revolution virtual vertices of which are oriented downwards.
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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 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 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.