Method of and apparatus for making and dispensing carbonated water with a double diaphragm pneumatic water pump
CA 1305948 C · Owner: Mcmillin, John R. · Inventors: Mcmillin, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of and apparatus for making and dispensing carbonated water with a double diaphragm continuous delivery pneumatic liquid pump had s water pressure regulator on a water inlet line to the pump a, water fill line to a carbonator, a propellant exhaust line from the pump to the carbonator, a carbon dioxide line to the carbonator, and a gas pressure regulator for controlling the storage pressure in the carbonator and the exhaust back pressure in the pump propellent outlet the exhaust back pressure in kept higher than the water pressure at the pump preventing diaphragm inversion; the method has the steps of dropping water pressure into the pump to below carbonation pressure, and …
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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 August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 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.