Regenerative burner and regenerative heat exchange system applicable thereto
CA 2177352 C · Owner: Tanaka, Ryoichi · Inventors: Tanaka, Ryoichi; Yasuda, Tsutomu; Matsuo, Mamoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a regenerative heat exchange system which performs heat exchange by alternately passing combustion exhaust gas as hightemperature fluid and combustion air as low-temperature fluid through a fixed regenerator, and a regenerative burner which carries out combustion using preheated air having a high temperature which is obtained by the regenerative heat exchange system. The regenerative heat exchange system comprises: a permeable regenerator 1 partitioned into three or more chambers in the circumferential direction; double-pipe outlet/inlet means 6 partitioned into a supply chamber 6a and an exhaust chamber 6b: and changeover means 3 which isolates the …
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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 December 1, 1994 and granted July 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.