Processes for producing and casting ductile and compacted graphite cast irons
CA 1214044 A · Owner: Elkem Metals Company · Inventors: Linebarger, Henry F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The present invention is directed to processes and apparatus for carrying out said processes wherein molten cast iron is treated with a predominately iron alloy having the essential elements by weight of from about 0.1 to about 10.0% silicon and about 0.5 to about 4.0% magnesium. The alloy may comprise from about 0.1 to about 10.0% silicon, about 0.5 to about 4.0% magnesium up to about 2.0% of one or, more rare earth elements such as cerium about 0.5 to about 6.5% carbon the balance being iron. Small amounts of calcium barium or strontium, and trace elements customarily found in conventional raw material may be present in the alloy. The characteristics of 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 November 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 2003.
- 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.