Recovery process
CA 1313629 C · Owner: Johnson, Herbert A. · Inventors: Robbins, Lanny A.; Johnson, Herbert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for separating a condensable gas from a non-condensable gas by serially switching at least three adsorber beds which preferentially adsorb the condensable gas through the following sequential steps: (a) an adsorption step in which a mixture of the condensable and non-condensable gases are passed through the bed and the separated noncondensable gas is withdrawn therefrom; (b) a supercharging step in which a stream relatively rich in the condensable gas is passed through the bed, said stream having an actual volume at least three times that necessary to displace a void volume of the bed; (c) a desorption step in which a vacuum is 34,828-F, drawn on the …
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
- Granted February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- 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.