Single bed pressure swing adsorption process and system
CA 2297590 C · Owner: Naheiri, Tarik · Inventors: Naheiri, Tarik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A PSA process and system utilizes a combination of cyclic feed evacuation, purge, and repressurization steps to provide a final gas product enriched in one of the, feed components. The process is carried out in a simple system which utilizes a single, two-way four-port valve for controlling gas flow between an adsorber vessel and a, blower, and the blower is used for the introduction of feed gas into the adsorber and the, evacuation of gas from the adsorber. The control of gas flow in either direction between, the adsorber vessel and a product gas storage tank is accomplished by two check, valves installed in parallel between the vessel and the tank.
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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 February 2, 2000 and granted April 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2022.
- 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.