Improved multiple column generator for aqua-ammonia absorption system
CA 2417855 A1 · Owner: Kirol, Lance D. · Inventors: Kirol, Lance D.; Sarkisian, Paul; Rockenfeller, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqua-ammonia absorption apparatus generator assembly comprising a boiler section (22), a solution-heated-desorber section (24) and adiabatic desorber , or GAX desorber section and a rectifier section, incorporates a plurality of columns (20, 26, 28, 30), each column comprising one or more of the sections with the columns arranged so that the lowest end of a first column (28) is lower than the top end of a second column (26 30), and uses one or more , eductors (25 27) driven by a feed stream from the absorber for pumping liquid refrigerant from the bottom of a lower temperature column (28) to the top of the next hotter column (26).
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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 July 30, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2023.
- 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.