Coriolis flowmeters using fibers and anisotropic material to control selected vibrational flowmeter characteristics
CA 2267237 C · Owner: Micro Motion, Inc. · Inventors: Van Cleve, Craig Brainerd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Coriolis flowmeter whose, flow tubes are made at least partly, of anisotrophic materials such as fiber reinforced composites. The composite, material is formed by orienting the fibers in one direction to increase the tensile strength of the material in that direction. Selected areas of the flow, tubes are formed of this composite to increase the flowmeter sensitivity and to separate desired flowmeter vibrational frequencies from undesired vibrational frequencies. Circumferentially oriented fibers increase the internal pressure, containment capability of the flow tubes. A strain gauge affixed to, the flow tubes flexes with flow tube deformation to indicate the internal, flow tube pressure.
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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 September 9, 1997 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 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.
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.