Grinding mill diaphragm discharge system
CA 1065293 A · Owner: Dominion Engineering Works Limited · Inventors: Nelson, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to an improved rotary grinding mill such as a ball mill, rod mill or an autogenous mill, having an improved arrangement wherein the usual "overflow" or "grate discharge" arrangements are dispensed with in favour of an annular array of lifter segments providing a diaphragm having a radial clearance from the mill shell, being spaced from the inner surface of the mill head to provide an annular entry slot of restricted opening, with a plurality of lifter blades located therein. The improved mill permits the maintenance of favourable flow gradients within the mill while allowing the carrying of a maximum usable quantity of grinding media, despite increases in mill …
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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 October 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 30, 1996.
- 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.