Grinding media charging device
CA 1294938 C · Owner: Holming, Robert · Inventors: Nelson, Robert S.; Holming, Robert; Daley, Thomas R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for uniformly feeding grinding balls to a grinding mill. The apparatus includes a ball storage hopper a regulator and an inclined chute, for conveying balls from the hopper to the regulator. The chute includes a panel for controlling the depth of the balls. The regulator includes a discharge drum having a plurality of compartments adapted to receive the balls, an electric motor for rotating the drum and a means for retaining the, balls in the drum. The drum is rotated at a predetermined speed and feeds the balls into a mill at a uniform rate which can be controlled to approximately match the, attrition rate of the balls in the mill.
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
- Granted January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.