Gas blending apparatus
CA 2194748 A1 · Owner: Nania, Gino · Inventors: Nania, Gino; Santangelo, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a unit which can be a stand alone or wall hung unit which can be used in establishments serving beer or other beverages such as wine where the beverage is pressure dispensed. The unit includes a module to separate nitrogen from filtered, clean dry air under pressure and store it. Stored nitrogen is conveyed to a blending device which blends CO2 from an outside source and the nitrogen to a selected ratio for subsequent conveyance to an outlet. Draft beer is readily dispensed by this pressurized blend of nitrogen and CO2 (70:30 preferred). The unit also has a pure nitrogen outlet from which nitrogen under pressure may be used to pressure dispense wine as an alternative.
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 January 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 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.