Fluidized bed combustion system and process for operating same
CA 2041985 C · Owner: Foster Wheeler Energy Corporation · Inventors: Dietz, David H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluidized bed combustion system and method in which a recycle section is located integrally with the furnace section in an enclosure and operates as a combustor. Heat exchange surfaces are provided in at least one compartment of the combustor/heat exchanger for removing heat from the solids, and a bypass compartment is provided through which the solids directly pass to the furnace during start up and low load conditions. Fluidizing air is discharged at varying velocities into the furnace section to increase the internal recirculation of the solids and a partition is located in the central portion of the furnaces enclosure for introducing secondary air.
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
- Filed May 7, 1991 and granted July 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2013.
- 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.