A combined gas and steam cycle pressurized fluidized bed boiler power plant and a method of establishing and operating the same
CA 2172523 C · Owner: A. Ahlstrom Corporation · Inventors: Lamar, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combined cycle pressurized fluidized bed power plant having a system for maintaining operation during low load condition comprises a pressurized fluidized combustor for burning fuel for producing a gas for powering a gas turbine (22) and for producing steam, for powering a steam turbine (24) a gas turbine responsive to the gas for powering a compressor (28) for supplying air to the combustor and a first generator (26) for generating electrical power a steam turbine responsive to the steam for powering a second generator (32) for generating electrical power, and means (64) for directing steam into the gas turbine for powering the turbine and compressor during low load conditions of the …
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 October 5, 1994 and granted September 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2016.
- 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.