Method of separation and removal of suspended liquid particles from molten metal and associated apparatus
CA 2117778 A1 · Owner: Aluminum Company Of America · Inventors: Deyoung, David H.; Apelian, Diran; Mutharasan, Rajakkannu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Molten metal (11) containing suspended liquid particles is passed preferably generally upwardly through a porous media (24) so constructed and arranged such that the movement of the molten metal (11) therethrough renders the suspended liquid particles gravity separable. The gravity separable liquid particles (34) rise upwardly or settle downwardly so as to be removable from said molten metal for subsequent removal therefrom. An associated apparatus is also provided.
Read the whole patent
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 February 7, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 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.