Water carbonator system
CA 2066747 C · Owner: Ebtech Corporation · Inventors: Burrows, Bruce D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved water carbonator system (10) is provided for thoroughly mixing a carbonating gas with a water supply flowing through a refrigerated reservoir (14) of the type used in soft drink dispenser stations and the like. The carbonator system (10) includes water and gas injector nozzles (42; 50) disposed generally at an upper end of the reservoir (14), together With a dispense valve (64) for drawing carbonated chilled water from a lower end of the reservoir. A vertically elongated and rotatably driven impeller shaft (78) carries a spaced plurality of vaneless impeller disks (90; 91') for causing the water flowing downwardly through the reservoir (14) to undergo a plurality of directional …
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 July 29, 1991 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2013.
- 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.