Slag retaining device with vortex inhibitor
CA 1296524 C · Owner: Labate, Michael D. · Inventors: Labate, Michael D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for the retention of slag during drawing off of molten metal from a vessel provided with a tap hole has a circular closure of a size to effectively close said tap hole and an elongated tapered member extending downwardly from said closure having several generally planar faces arranged circumferentially thereof, said device having a specific gravity less than the specific gravity of said molten metal and greater than the specific gravity of said slag.
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
- Granted March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- 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.