Process and apparatus for at least at times simultaneously supplying a molten metal with a gas and fine-grain solid materials
CA 2024938 A1 · Owner: Gfi Gesellschaft Fur Industrieausrustung Mbh · Inventors: Knapp, Hubert; Hoffmann, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Figure 1):, PROCESS AND APPARATUS FOR AT LEAST AT TIMES SIMULTANEOUSLY SUPPLYING A MOLTEN METAL WITH A GAS AND FINE-GRAIN SOLID MATERIALS In a process for at least at times simultaneously supplying a molten metal (5) in a metallurgical vessel (3) with a gas and finegrain solid materials, with a water-cooled first lance (17) for the supply of the gas, in accordance with the invention the solid materials are supplied in the form of a delivery stream (27) by way of a second lance (19). The supply in that connection is effected in such a way that, after leaving the outlet opening (25) of the second lance (19), the materials are deflected by the gas (29) issuing from the outlet opening (23) of …
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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 September 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.