Patent ID: 6294859
Filing Date: 2001-09-25
Classification: H02N

Abstract:
An actuator assemblycomprising two actuator devices, a rigid yoke interconnecting said actuator devices, and a common output element,wherein each said actuator device comprises an electrically strainable solid state actuator element, first and second relative displacement output members, and a rod linkage coupling said output members to said actuator element such that said output members amplify a strain displacement of said actuator element,wherein said first output members of said two actuator devices are arranged distally and oriented away from each other, and are respectively fixed to said rigid yoke, andwherein said second output members of said two actuator devices are arranged proximately adjacent each other and are interconnected and connected to said common output element, which is relatively slidably coupled to said rigid yoke, so that an output displacement stroke of said common output element corresponds to an output displacement stroke of each one of said second output members and an output displacement force of said common output element corresponds to the sum of respective output displacement forces of said second output members.