A gear coupler with a controllable roller clutch
CA 2451899 A1 · Owner: Pascoe, David Mark · Inventors: Hu, Fuzheng; Pascoe, David Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gear coupler for a power transmission comprises an outer race having an cylindrical, inner surface and an inner race having a cylindrical outer surface with spaced apart ramped, surfaces. A plurality of rollers are seated between the inner and outer race. A controllable cage, has a plurality of cage pins seated between adjacent pairs of rollers and engages the rollers with, the ramped surfaces. A shifting ring is coupled to the cage for axial movement therealong for, selectively aligning the rollers between the ramped surfaces to disengage the inner race from the, outer race and allow relative rotation therebetween and for wedging the rollers against the, ramped surface to engage …
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 December 2, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2025.
- 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.