Metallurgical controlling method
CA 1303861 C · Owner: Persson, Erik W. · Inventors: Persson, Erik W.; Alden, Lars E.M.; Wendt, Erik W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for monitoring and control of smeltmetallurgical processes endothermic as well as exothermic ones preferably pyrometallurgical processes by means of optical spectrometry, whereby one first determines for each endothermic and exothermic smeltmetallurgical process and- /or process step characteristic emissions or absorptions and identifies the atomic or molecular origin of the emissions/absorptions that one during a running process records changes in the characteristic emissions/absorptions and relates these changes to the condition of the process and with reference hereto controls the process.
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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.