Unified assembly for control of fluid flow and a liquid dispensing system which includes such an assembly
CA 1283636 C · Owner: Arthur Guinness Son And Company (Great Britain) Limited · Inventors: Rutty, Brian Robert; Walshe, John Justin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid dispensing system and a unified assembly for control of fluid flow in such a system has a container l from which liquid such as beer is drawn by an electrically controlled pump 2 to be supplied through a unified assembly 4 to a dispensing tap 5. The assembly 4 has an inlet 6 which communicates through a pressure biased non-return valve 8 with a high pressure chamber 9 and an outlet 11 to the tap 5. A piston 14 responds to high pressure in the chamber 9 to be displaced and pivot a rocking lever 26 to operate a microswitch 28 which is normally closed to operate the pump 2 but is opened in response to said displacement of the piston 14 to deactivate the pump 2. A 10W pressure chamber …
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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 April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
- 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.