Method of monitoring a hidden coal-rock interface and a transmitter for performing this method
CA 1265259 C · Owner: Institut Gornogo Dela Imeni A.A. Skochinskogo · Inventors: Omelchenko, Nikolai P.; Slavinsky, Vladimir M.; Nunuparov, Georgy M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method of monitoring a hidden coal-rock interface includes irradiating the medium being monitoring from a gamma-ray source and registering by a detector the intensity of backward scattered radiation at a spacing from the surface of the monitoring medium and at a spacing from the radiation source. There are formed at the detector two zones of reception or backward scattered radiation diff-, erently spaced from the source, so that the intensity of backward scattered radiation received by the zone closer to the source diminishes, and the intensity of backward scattered radiation received by the zone more remote from the source grows with a growing spacing of the detector from the monitored …
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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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 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.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.