Parallel couette type viscous heater
CA 2230457 A1 · Owner: Moroi, Takahiro · Inventors: Moroi, Takahiro; Ban, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a parallel Couette type viscous heater of the present invention, a stator is accommodated in the inside of a housing; and a heat-generating chamber and a water jacket (radiator chamber) which surrounds around it are provisionally formed. In the inside of the heat-generating chamber, a rotational driving rotor and the rotational driven rotor are rotatably provided; and around the outer peripheral portions of these, an orbital sheet as an end-free-state member is wound. Based on the orbital driving of the orbital sheet the shearing of silicone oil (viscous fluid) which is existed at a clearance between an outer surface (shearing effecting surface) of the orbital sheet and an inner wall …
Read the whole patent
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 February 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2020.
- 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.