Measuring device for measuring the liquid/dry matter mixture ratio and a method of determining the liquid/dry matter mixture ratio
CA 2095957 A1 · Owner: Pahlman, Heikki · Inventors: Pahlman, Heikki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A measuring device for measuring the liquid/dry matter mixture ratio and a method of determining the liquid/dry matter mixture ratio. The device is a thin blade-like rod (1) arranged in a process pipe (3) the device form-, ing an electric field with a frequency varying within a certain range between the electrode (2) and the process and the process pipe (3), which functions as the second electrode. In the method an alternating current having a fixed frequency is conducted through the liquid/dry matter mixture, whereby the proportions of capacitive and resistive current can be determined on the basis of the phase difference of current caused by the liquid/dry matter mixture. Thereby 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 11, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2015.
- 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
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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.