Centrifugal clutch shifter
CA 2228088 C · Owner: Joss, Robert · Inventors: Joss, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a new and useful device for use in a centrifugal clutch assembly in which the clutch assembly comprises a shaft which carries a first sheave axially, moveable on the shaft and a second sheave axially fixed on the shaft a drive , belt between the, first sheave and the second sheave and a return spring operating on the first sheave. A roller, is fixed relative to the first sheave and a pivot pin is fixed on and moveable with the first, sheave. The device further comprises a body having an arcuate outer surface constructed so, as to provide a cam surface relative to the roller. An aperture is provided in the body and is, constructed so as to mate with the pivot pin to …
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 January 28, 1998 and granted August 13, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 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.