System and method for monitoring the proportional volume of constituents provided to a mixture
CA 2224766 A1 · Owner: Ondrus, Daniel Joseph · Inventors: Chesney, David J.; Ondrus, Daniel Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ferromagnetic tagging material is suspended in a constituent of a two constituent mixing system. Two tagging material sensors are employed that respectively monitor the tagged constituent as it flows in the system alone and the mixed constituents as they flow to a dispenser nozzle. A monitor calculates the volumetric ratio of the two constituents present when mixed based upon the concentration of tagging material sensed by each sensor. A warning is given when the calculated ratio exceeds predetermined limits. -16-
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 December 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 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.