Installation and method of venting the waste gases of air distillation or liquefaction units
CA 2359407 A1 · Owner: Gourdain, Daniel · Inventors: Gourdain, Daniel; Peyron, Jean-Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To reduce the level of oxygen concentration in the waste gases emitted by the stack of such installations according to the invention, connecting means (15) connect the respective internal spaces of a chamber (13), for discharging an inert gas miscible with oxygen and of lower density than air, such as nitrogen and of, the stack (2); thus, this inert gas is mixed with at least the oxygen flowing through the stack and the mixture obtained is discharged with a velocity at least equal to approximately 7 m/s at the exit of the stack. Use: the making of air distillation or liquefaction units safe.
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
- Filed October 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 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.