Revolution assisting device for a rotating body
CA 2285281 A1 · Owner: Takara, Muneaki · Inventors: Takara, Muneaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A revolution assisting device for a rotating body comprises the rotating body provided on an outer peripheral surface thereof with permanent magnets and a , shaft connected to the rotating body by means of a crank mechanism and provided with permanent magnets, the shaft effecting vertical movements to assist revolution of the rotating body. The revolution assisting device for a rotating body further comprises a first magnet section and/or a second magnet section adapted to be slidingly moved in a diametrical direction of the rotating body by means of the crank mechanism which comprises the rotating body mounted to a rotating axis of a crank shaft and a connecting rod mounted to a …
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 March 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 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.