The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Oct. 18, 2002
Andrew J. Collins, North Somerset, GB;
Hamilton Sunstrand, Windsor, CT (US);
Abstract
A flight control surface actuation system has a plurality of actuators attached to one or more summing levers. Each summing lever has an actuator output point that is attached to the flight control surface. The summing lever position corresponds with a sum of the positions of the actuators attached to it. If one of the actuators jams and becomes immovable, other actuators attached to the same summing lever as the malfunctioning actuator compensates for the malfunctioning actuator to bring the flight control surface to a neutral position. The summing lever makes it possible for flight control surface actuation systems to use actuators other than actuators having a bypass mode or any other features that prevent the actuators from jamming.