Converter for preparing steel and a gas supply device for such a converter
CA 1284877 C · Owner: Butter, Johannes A.M. · Inventors: Butter, Johannes A.M.; De Vries, Jan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A converter for preparing steel having a refractory lining including a wear lining is provided at its bottom with a plurality of gas supply devices for supply of stirring gas to the molten bath in the converter. Each gas supply device has a generally vertical flat panel which comprises at least two flat metal plates joined together to provide a plurality of gas passages between them. The plates are mounted between bricks of the wear lining. To prevent the plates bulging apart, which causes the gas passages to be blocked by steel the plates are connected to each other between their edges at a plurality of locations distributed over the whole of the plate faces in a manner so as to resist the …
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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 June 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2008.
- 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.