Apparatus measuring the radioactivity of an ore load on a extracting machine like a buchet excavator
CA 2006739 C · Owner: Rouillon, Christian · Inventors: Rouillon, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a radioactivity measuring instrument for a radioactive ore mining device fitted with at least one mobile container (18) for loads of ore. The invention calls for an articulated rod linked in such a way as to swing in at least one vertical plane (120) to be fitted to the top of the device, while an ionizing radiation detector (122) covering a certain solid angle is fitted to the bottom while some means is provided for the rod and container to be reproducibly brought into such a position relative to each other, that the load of ore in the container subtends a substantial part of the detector's solid angle. An arm (110) shall be preferably be fitted between the rod and …
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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
- Filed December 27, 1989 and granted September 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2011.
- 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.