Drive roller control for toric-drive transmission
CA 2401474 C · Owner: Careau, Fernand · Inventors: Maltais, Hugues; Careau, Fernand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toric-drive transmission comprising a drive disk adapted for receiving a drive input from actuation means. A driven disk is opposite the drive disk and adapted for transmitting motion to output means. Drive rollers are between the drive disk and the driven disk. The drive rollers have three rotational degrees of freedom. A first one of the rotational degrees of freedom is for transmitting motion from the drive disk to the driven disk. A second one of the rotational degrees of freedom changes an input-to- output ratio between the drive disk and the driven disk. A third one of the rotational degrees of freedom initiates rotation about the second one of the rotational degrees of freedom. …
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 September 5, 2002 and granted June 21, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2024.
- 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.