Fluidized bed with improved nozzle construction
CA 2197227 C · Owner: Abb Alstom Power Inc. · Inventors: Tanca, Michael Chris; Hartman, Ernest Lester
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluidized bed system (10) which includes a housing (12) and a floor (14) comprising a plurality of generally parallel tubes (32) joined by fins (34) intermediate adjacent tubes (32). A plurality of nozzle assemblies (30 50) , extend generally vertically in mutually parallel relationship from the floor (14). Each of the nozzle assemblies (30 50) includes a generally cylindrical , body (36) having a centerline disposed in generally perpendicular relationship to the floor (14) and each of the bodies (36) includes a plurality of heads (38) extending generally radially therefrom at an axial extremity thereof remote from the floor (14). In some embodiments of the invention each of the …
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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
- Filed July 24, 1995 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2017.
- 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.