Fine gold recovery system
CA 1265490 C · Owner: Adair, Ernest M. · Inventors: Adair, Ernest M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a centrifuge having a mercury sleeve retained in an annular grooved grid in the outer wall of the centrifuge. A cup-shaped base seats an acceptor cone that is mounted atop a vertical spindle. The spindle has limited up and down movement and provides stability to a surrounding rotating sleeve that depends from the base of the centrifuge. This sleeve receives its drive from an offset power input. The inside of the cup-shaped base has particle striking surfaces that impart a swirling motion to infed slurry. The flow rate of the slurry is carefully controlled and two mixing stages are provided. An external primary mixing chamber is on a separate drive. An internal …
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 February 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 2007.
- 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.