Method and apparatus for the measurement of the mass flowrates of fluid components in a multiphase slug flow
CA 2136175 C · Owner: Commonwealth Scientific And Industrial Research Organisation · Inventors: Zastawny, Henryk Wojciech; Watt, John Stanley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual energy gamma-ray transmission gauge (10) includes radioisotope sources (11) for emitting gamma-rays (l3) of two different energies. Gauge (10) also includes a gamma-ray detector which produces signals as a response to the detected gammarays. fi single energy gamma-ray transmission (17) is disposed upstream of gauge (10) for providing further signals indicative of the respectively detected gamma-rays. These signals are subsequently directed to a processing computer (16) together with signals indicative of the pressure and temperature of the flow obtained from two sensor means (18, 19). The intensities of the gamma-rays are recorded and thereafter a value indicative of the mass …
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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 May 20, 1993 and granted July 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2015.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.