Device and process for separating particles with a rotary magnet system
CA 2254934 A1 · Owner: Exner, Hubertus · Inventors: Exner, Hubertus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A particle separating device separates material to be sorted (1) into fractions of greater or lesser electrically conductive non-ferromagnetic particles (2, 3). The particles are fed to a conveying device (20) e.g. a , conveyor belt (20a). Beneath or above the conveyor belt (20a) there is a rotary magnet system (30). The direction or rotation of the magnet system (30) is selected so that its surface and the conveyor belt (20a) move in different directions (26, 36). The fractions of greater or lesser electrically charged non-ferromagnetic particles (2, 3) are thus distributed over several collecting containers (41, 42).
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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 17, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 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.