Heat recovery steam generator
CA 2324472 A1 · Owner: Waryasz, Richard E. · Inventors: Palkes, Mark; Waryasz, Richard E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The water flow circuit for a heat recovery steam generator (10) includes both a low pressure circuit (36) and a high pressure circuit (38). Both circuits (36, 38) are designed for once-through flow and both include evaporators (50 64) with rifled tubing. A pressure equalizing header (70) may be located between the evaporator (64) and superheater (66) and orifices (68) may be located at the inlet to the evaporator (64) for flow stability.
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 February 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2021.
- 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.