Process to counter the vibrations in aircraft caused by the windmilling of a fan and fly-by-wire system using this process
CA 2460610 C · Owner: Airbus Operations Sas · Inventors: Kubica, Francois; Briere, Dominique
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the invention, in case of detection of induced vibrations: an additional electric control command ( Z Y) is computed, which, applied to the servocontrol of at least one control surface allows the latter to oppose said induced vibrations; the electric flight control command (dZ dY) relating to said control surface and said additional electric control command ( Z Y) are summed to obtain an overall control command for said control surface; and said servocontrol is temporarily slaved to said overall control command allowing the operation of said servocontrol in a widened frequency band.
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 March 12, 2004 and granted August 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2026.
- 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.