Gas dissolving method
CA 1320934 C · Owner: The Boc Group Plc · Inventors: Fitzpatrick, Nicholas Bernard; Kuzniarski, John Nicholas Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of charging a flexible container such as a can with non-carbonated liquid, inert gas comprising argon is dissolved in the liquid preferably using a bowl filler to the head space of which nitrogen or argon is supplied. A closure is then fitted gas-tight to the container. The concentration of dissolved gas in the liquid and the volume occupied by the head space of the charged container are so selected that on equilibration there is a super-atmospheric gas pressure in the head space of the container. The method enables thin-walled cans to be employed.
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
- Granted August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
- 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.