Stability augmentation system for relaxed static stability aircraft
CA 1111938 A · Owner: Sperry Corporation · Inventors: Osder, Stephen S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The outputs of a pair of linear accelerometers are utilized to provide measures of craft vertical acceleration and body axis pitch angular acceleration. The pitch angular acceleration signal is integrated to provide a measure of body axis pitch rate. The pitch rate signal is in turn integrated to provide a measure of body axis pitch attitude. An earth referenced pitch attitude sensor provides a measure of earth referenced pitch attitude and through a rate taker a measure of earth referenced pitch rate. The earth referenced sensor is utilized to calibrate out errors and effectively align the linear accelerometers so that in the event of a loss of the earth referenced sensor, the calibrated …
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
- Granted November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- 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.