Settling process analysis device and method
CA 2286764 A1 · Owner: Fay, Charles Robert · Inventors: Fay, Charles Robert; Robinson, Harold Leon; Barnes, Ralph W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a system and method for monitoring the dynamics of particle motion in a liquid-solid media including the rate of settling of particles, the identification of unsettled particle clouds and the , identification and control of the bed level of settled particles in a slurry within a settler. The system includes an ultrasound transducer and a receiver for detecting echoes from particles in the slurry. The echoes are processed to determine the bed level of the settled particles the position of unsettled , particle clouds and the rate of settling of the particle clouds.
Read the whole patent
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 April 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 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.