Apparatus and method for cooling a basic oxygen furnace trunnion ring
CA 2294949 A1 · Owner: Besterman, C. David · Inventors: Nowak, Kelan J.; Besterman, C. David; Brown, Leon R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for cooling a BOF trunnion ring by vaporization. A water mist is injected into the interior space of the trunnion ring where it is vaporized upon contact with a hot interior surface. The heat transfer of vaporization cools the trunnion ring, and hot water vapor is vented into the atmosphere.
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 January 22, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2020.
- 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.