Method of manufacturing leaded free-cutting steel by continuous casting process
CA 1196172 A · Owner: Mitsubishi Steel Mfg. Co. Ltd. · Inventors: Yoshimura, Tsuneo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A leaded free-cutting steel is manufactured by continuous casting process without causing any-pollution of the environment or a manufacturing apparatus by toxic gases or fumes and in a high yield of lead addition with a high quality, wherein lead or lead alloy or composite lead-feeding material comprising lead or lead alloy covered with a metallic material harmless for the steel such as, for example, alminum or iron, are directly added to molten steel being electromagnetically stirred in the horizontal direction in a mold. In the manufacturing method a leaded free-cutting, steel having a uniform lead distribution or a high machinability leaded free-cutting steel can be readily produced by …
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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 November 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2002.
- 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.