Apparatus for and method of producing slurry material without stirring for application in semi-solid forming
CA 2459677 A1 · Owner: Unruh, Jason M. · Inventors: Chirieac, Dan V.; Lu, Jian; Winterbottom, Walter L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing a semi-solid material without stirring including , heating a metal alloy to form a metallic melt (M) transferring a select , amount of the melt (M) into a vessel (80 200, 300), nucleating the melt (M) , by regulating the transferring of the melt (M) into the vessel (80 200, 300), and crystallizing the melt (M) within the vessel (80 200, 300) by cooling the , melt (M) at a controlled rate to produce a semi-solid material (S) having a microstructure comprising rounded solid particles dispersed in a liquid metal matrix. In one form of the invention, a temperature-controlled shot sleeve (80) is provided for receiving and cooling an amount of metallic melt (M) at a …
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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 August 15, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 15, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2024.
- 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
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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.