Slag retaining device for use in converters, ladles, or the like
CA 1265675 C · Owner: Labate, Michael D. · Inventors: Labate, Michael D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for the separation of slag and its retention in a converter, ladle, or the like consists, of a closure commonly called a dart adapted to be, placed either manually or automatically in the tap hole of the converter or ladle during tapping of molten metal therefrom. The device may have smooth exterior surfaces or may include configurations enabling it to substantially close the tap hole and impart a swirling motion to the molten metal and slag therein. The device may be formed of material having a specific gravity lower than that of the metal in the converter or ladle but, higher than that of the slag thereon or alternately having a specific gravity higher than that of the metal to …
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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 February 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 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.
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.