Level control for continuous casting
CA 1104697 A · Owner: Poncet, Pierre · Inventors: Poncet, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the continuous casting of metals by means of a water-cooled tubular mold into which the molten metal is fed by means of a refractory pouring nozzle which opens in the molter metal bath below a supernatant protective layer of fusible slag, automatic control of the molten bath level is obtained by forming an image of the upper portion of the mold with the pouring nozzle and the slag layer by means of an optical instrument, by disposing a plurality of photo-electric cells on this image along a line substantially coincident with the axis of the nozzle on the said image some of said cells being on the image of said nozzle and others on the image of the slag layer by determining the radiation …
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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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.