Viscous fluid type heat generator
CA 2185092 C · Owner: Ban, Takashi · Inventors: Yagi, Kiyoshi; Mori, Hidefumi; Ban, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A viscous fluid type heat generator is provided with a case unit having a front case and a rear case and has an inner surface defining a heat generating chamber, a heat receiving chamber formed in at least one of the front ease and the rear case so as to extend contiguously with the heat generating chamber to form a heat exchanging fluid passage through which a heat exchanging fluid is circulated, a drive shaft supported for rotation in a bearing on the front case a rotor, element mounted on the drive shaft for rotation together With the drive shaft in the heat generating chamber, a viscous fluid filling up a space between the inner surface of the case defining the heating chamber and 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 September 9, 1996 and granted July 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2018.
- 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.