Method for determination of the tip position of consumable electrodes used in electric smelting furnaces
CA 2288701 A1 · Owner: Tronstad, Ragnar · Inventors: Tronstad, Ragnar; Kalgraf, Kjell; Morkesdal, Gunnar
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 determination of the electrode tip position for consumable electrodes in electric smelting furnaces which , electrodes being submerged in the furnace charge. The voltage between two geometrically displaced points on the outside of the steel wall of the furnace pot is measured during operation of the furnace said points being situated as , close as possible to the electrode for which the electrode tip position is to be determined, and as far away as possible from the other electrodes in the furnace. The electrode current for the electrode for which the electrode tip position is to be determined, is recorded at the same time as the voltage …
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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 March 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2021.
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Timeline
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.