Measuring device comprising an excitable frequency gauge
CA 2255697 A1 · Owner: Enarson, Knut · Inventors: Enarson, Knut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for measuring a parameter such as the mass concentration or the viscosity of a fluid medium (2) such as a suspension or a liquid including a , rotor (3) for rotation in said medium a drive motor (7) and a drive , transmission with a drive shaft (9) for the rotor and a sensor device (10) for sensing the torque which is transmitted to the rotor and which represents said parameter. The device is distinguished by that the sensor device (10) includes an excitable frequency gauge which is deformed by said torque and the , prevailing natural frequency of which is dependent on the deformation and is directly detectable by a stationary detector (12) which is placed outside the , …
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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 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 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.