Apparatus for separating mineral and the like from earth and the like
CA 1102742 A · Owner: Hulegard, Trueman L. · Inventors: Hulegard, Trueman L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for separating minerals and the like from earth and the like which includes a tank including a tank having an upper portion and a lower portion having a frusto-conical formation. The lower tank portion terminates in a chamber from which extends an outlet for separated material. The top of the tank has an outlet and an inlet. The tank also includes an auger for causing a flow of liquid in the tank portions from within the chamber upwardly and into said lower and upper tank portions. The tank has baffle members and on the tank arcuate bar members connected to the auger for separating material. A fluid injection inlet is connected to said chamber for introducing fluid under …
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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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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.