Patent ID: 6588704
Filing Date: 2003-07-08
Classification: B64C

Abstract:
Actuator apparatus, in particular for an airplane flight control, the apparatus comprisingat least two main drive systems and a differential which connects at least two corresponding outlet shafts from the at least two main drive systems to a control shaft connected to an element to be actuated; means for locking at least one of the at least two outlet shafts when at least one of the at least two main drive systems is no longer operating; t at least one auxiliary drive motor and a clutch mechanism mounted on one of the at least two outlet shafts and suitable for automatically driving said one outlet shaft when all of the at least two corresponding main drive systems are not operating and for automatically locking at least one of said outlet shafts when all but one of said at least two main drive systems sand said auxiliary motor are not operating.