Fluid production method and apparatus
CA 2069274 A1 · Owner: Lavin, John Terence · Inventors: Latham, Paul Michael; Lavin, John Terence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Iron ore, coal and oxygen are fed to a reactor 4 to produce iron and a fuel gas. The fuel gas leaves the reactor 4 at a temperature of at least 200°C and is passed through a hot filtration apparatus 6. The resulting hot filtered gas then passes through a heat exchanger 8. A heat exchange fluid, preferably a stream of nitrogen at above ambient pressure passes through the heat exchanger 8 countercurrently to the hot filtered as stream. The heat exchange fluid is thereby heated. The hot heat exchange fluid stream is then expanded with the performance of external work in an expansion turbine 10, for example it may be used in the generation of electrical power. The hot, filtered, fuel gas may be …
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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 May 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2014.
- 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.