Microwave measurement of phase equilibria
CA 2413445 A1 · Owner: Mann, Anthony G. · Inventors: Mann, Anthony G.; Edwards, Terry J.; Edwards, Cyril
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microwave resonator apparatus (35) includes a microwave resonant cavity (36) in fluid communication chamber (38) are dimensioned to ensure high attenuation of resonant electromagnetic fields without impeding fluid flow. The resonant properties of the cavity (36) are therefore completely insensitive to variations in the volume of the pressure chamber (38). The resonator has a specialised reentrant geometry. Consequently two of the cavity's resonant , modes depend sensitively upon the formation and volume of any liquid phase present in the cavity. The apparatus and the method are suitable for measuring dielectric properties and phase envelope of fluid mixtures (such as a gas …
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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
- Filed June 28, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.