Centrifugal mill
CA 1078352 A · Owner: Chamber Of Mines Services (Pty) Ltd. · Inventors: Bradley, Arthur A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A centrifugal mill comprising a cylindrical grinding drum, which rotates on its own axis and simultaneously revolves at a constant angular velocity ratio on a circular orbit around a stationary axis of revolution, which is parallel to the drum axis. The distance from the axis of the drum to the axis of revolution is smaller than the radius of the grinding drum. The ratio of the diameter G of the circular orbit to the inside diameter D of the grinding drum is between 0.3 and 1.0 and the ratio R of the angular velocity of the revolution of the grinding drum on the circular orbit around the axis of revolution to the angular velocity of the rotation of the grinding drum on its own axis is in …
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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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 1997.
- 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.