Method and system of converting thermal energy into a useful form
CA 2266988 A1 · Owner: Kalina, Alexander I. · Inventors: Kalina, Alexander I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of implementing a thermodynamic cycle by expanding (HPT) a gaseous working stream (30) to transform its energy into a useful form and produce an expanded gaseous stream (34), removing from the expanded gaseous stream an extracted stream (66), absorbing the extracted stream (66) into a lean stream (40) having a higher content of higher-boiling component than is contained in the extracted stream (66) to form a combined extracted/lean stream (68) at , least partially condensing the combined extracted/lean stream (70) combining , at least part of the combined extracted/lean stream (70) in condensed form with an oncoming working stream (29) including a rich stream having a lower …
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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 September 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2019.
- 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.