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Expired Canadian patentCanada

Circulating fluidized bed reactor utilizing integral curved arm separators

CA 1295191 C · Owner: Foster Wheeler Energy Corporation · Inventors: Gorzegno, Walter P.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A reactor having a furnace and a heat recovery section. The upper portion of said furnace extends coaxially in a spaced relationship within a shell. A bed of solid particulate material including fuel is supported in the furnace and air is introduced into the bed at a velocity sufficient to fluidize same and support the combustion or gasification of the fuel. A mixture of air the gaseous products of combustion, and the particulate material entrained by the air and the gaseous products of combustion are discharged through a plurality of slots and arcuate arms disposed at the upper portion of the furnace onto the inner wall of the coaxial shell effecting a, …

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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 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 26, 1989
GrantedFebruary 4, 1992
Term endedFebruary 4, 2009
Patent numberCA 1295191 C
Classification (IPC)B01J8/38 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 26, 1989Patent grantedFeb 4, 1992Term endedFeb 4, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.