Driven unit for a continuously-variable-ratio drive, and relative drive belt removal method
CA 2453787 A1 · Owner: Borghi, Gianni · Inventors: Borghi, Gianni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A driven unit for a continuously-variable-ratio drive having a fixed half-pulley assembly having a fixed halfpulley connected to an output member of the drive; a movable half-pulley assembly having a movable half-pulley mounted to slide axially with respect to the fixed half-pulley to form with it a V-shaped groove of variable width for a V-shaped belt; and a spring which forces the half-pulleys towards each other to keep the half-pulleys in contact with the belt; the fixed half-pulley assembly has one or more threaded through axial holes in which to screw respective screws which, cooperate with an annular surface axially facing the holes in the fixed half-pulley assembly to exert thrust on …
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 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.