Pedal mechanism for a human propulsion vehicle
CA 2060801 C · Owner: Revelox Inc. · Inventors: Garneau, Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pedal mechanism for a human propulsion vehicle such as a bicycle wherein the length of each of the pedal arm is increased during the power stroke and decreased during the return stroke of the rotation cycle. It comprises a pair of sun gears rigidly attached to the frame of the vehicle each, meshed to an adjacent planetary gear of identical diameter. A lever radially projecting from each of the planetary gears, generate the alternative movement of the corresponding pedal arm. The levers also change the angular orientation of the pedal arms by moving them toward the power stroke zone forcing the pedals arm to stay as long as possible in power stroke, thus giving the pedal mechanism no dead …
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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 6, 1992 and granted November 8, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2014.
- 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.