Antivortexing nozzle system for pouring molten metal
CA 2130884 C · Owner: Harasym, Michael F. · Inventors: Harasym, Michael F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and a metering assembly are both disclosed and both, relate to reducing the vortexing which can occur during the outflow of molten metal from a holding reservoir to a mold during casting operations. The system includes a first molten metal holding and pouring box with first predetermined dimensions, a second molten metal holding and pouring box with second predetermined dimensions which are less than said first predetermined dimensions and which is positioned relative to said first molten metal holding and pouring box to receive a flow of molten metal therefrom a first flow control device for controlling the outflow of molten metal located, at the bottom region of the first molten …
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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 25, 1994 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2016.
- 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.