Tilting mechanism for a dc arc furnace and process for discharging the furnace
CA 2111756 A1 · Owner: Guido, Heinz · Inventors: Guido, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a tilting device for a DC arc furnace and a procedure for completely emptying the furnace while it is being continuously charged with scrap through a lateral opening (15) in the furnace vessel (1) and while, simultaneously maintaining a sump. The scrap chute (14) should remain at the opening (15) in the furnace during continuous charging melt-down, deslagging, and steel tapping operations and should be swivelled away only when the furnace has to be completely emptied. By means of the tilting device according to the invention, in which a cam (10) is mounted on the rolling cradle (4), the roll centre point (5a) remains in the zero position in a tilt range from ? 5° 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
- Filed December 17, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2015.
- 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.