Method and apparatus for burning combustible gases
CA 2197030 C · Owner: Enviro-Pit Rentals Ltd. · Inventors: Melnyk, Allan; O'Brien, Alan; Charest, Roger J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for burning combustible gases contained in a mixture comprised of the combustible gases and a liquid. The apparatus comprises: a separator, having an upper end and a lower end. A first portion of the gases is directed out of the upper end and the liquid and a second portion of the gases are directed out of the lower end; an inlet; and a burner which communicates with the upper end suchthat the first portion contacts the burner for combustion and the combustion creates a vacuum effect which produces an air current outside of the separator from the lower end to the burner. The lower end communicates with the air current such that thesecond portion is drawn by the air …
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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 7, 1997 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2019.
- 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.