Heat generator and design method thereof
CA 2308940 C · Owner: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho · Inventors: Suzuki, Shigeru; Hoshino, Tatsuyuki; Moroi, Takahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heat generator comprises a partitioning wall 34 in opposed relation to a rotor in a heat generating area in, which the partitioning wall is formed with a supply groove 38 for introducing the viscous fluid to the outer peripheral area of the heat generating area from a storage area, and a recovery groove 39 for leading out the viscous fluid to the storage area from the outer peripheral area of the heat generating area. The shape position and the mounting angle of the supply groove 38 and the recovery groove 39 are designed to set the outflow ratio a to not more than 0.92. The outflow ratio a is defined as the ratio (.alpha. = Qout1/Qin) of the amount Qout1 of the viscous fluid flowing out …
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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 19, 2000 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2022.
- 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
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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.