Auxiliary bed pressure swing adsorption molecular sieve
CA 1305435 C · Owner: Calgon Carbon Corporation · Inventors: Vo, Toan P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing an enriched gas stream substantially continuously in first and second adsorption zones by (a) serially passing co-currently a gaseous mixture containing the gas to be enriched through a first adsorption zone having a primary adsorption column and an auxiliary column under pressure to produce an enriched gas stream; (b) discontinuing the flow of gaseous mixture prior to breakthrough and immediately thereafter equalizing the pressure in the first adsorption zone with the pressure in the primary column of the second zone by substantially simultaneously (i) equalizing the auxiliary column from its outlet to the outlet of the primary column of the second adsorption zone, …
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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
- Granted July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
- 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.