Very high temperature heat exchanger
CA 2107464 C · Owner: Scientific Ecology Group, Inc. (The) · Inventors: Galloway, Terry R.; Bowles, Anthony J. G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high temperature fluid-to-fluid heat exchanger (10) is described wherein heat is transferred from a higher temperature fluid flow core region (75) to a lower temperature fluid flow annulus (50). The wall (54) separating the high and low temperature fluid flow regions is comprised of a material having high thermal absorptivity, conductivity and emissivity to provide a high rate of heat transfer between the two regions. A porous ceramic foam material (60) occupies a substantial portion of the annular lower temperature fluid region (50), and is positioned to receive radiated heat from the wall (54). The porosity of the ceramic foam material (60) is sufficient to permit a predetermined …
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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 April 14, 1992 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 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.