Inoculant alloy based on ferrosilicon or silicon and process for its preparation
CA 1238787 A · Owner: Skw Stahl-Technik Gmbh · Inventors: Weiser, Ernst A.; Wolfsgruber, Friedrich; Bruckmann, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inoculant alloy based on ferrosilicon or silicon for the manufacture of cast iron with lamellar compact or spheroidal. graphite is described this alloy, comprising, a) between 0.1 and 10% of barium and/or zirconium b) less than 2% of aluminum and, c) 0.3% of calcium. This inoculant alloy is distinguished by particularly good suppression of the precipitation of carbide and by its preparation process which is industrially simple and thus has favorable costs.
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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 July 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2005.
- 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.