Device for volumetric dosing of products
CA 2135754 C · Owner: Credle, William S. Jr. · Inventors: Credle, William S. Jr.; Hughes, Robert D. Iv
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A post-mix beverage dispensing valve for dispensing syrup and soda in the desired ratio without the need for flow controls for periodic adjustment of the ratio. The valve includes a flow meter (30) for measuring the flow rate of the soda and a pump (10) for dispensing metered quantities of syrup. The pump (10) preferably includes a chamber (14) within a ceramic sleeve (12) having first and second distal ends and a double-acting ceramic piston (16) mounted for reciprocating sliding movement within the sleeve (12). A solenoid valve control system including a pair of solenoid valves (SCA SCB) controls syrup flow through the pump (10) in response, to signals from the flow meter (30). The valve …
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 June 2, 1993 and granted May 20, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 2, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2015.
- 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.