Particle size analysis
CA 1214576 A · Owner: Bestobell (U.K.) Limited · Inventors: Starnes, Peter E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for monitoring the fineness of solids in a first suspension of solids in a liquid medium is described. The apparatus comprises a cyclone for separating the first suspension under the influence of a force field into two second suspensions containing respectively solids generally coarser than and generally finer than a predetermined separation size. A constant head device is provided to cause the first and second suspensions to flow through the apparatus. Density measurement means comprising radiation sources presentation columns, and detectors measure the density of the first suspension and the second suspensions respectively. A computer determines from the measured …
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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
- Granted November 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 2003.
- 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.