Patent ID: 6812594
Filing Date: 2004-11-02
Classification: H01H,H03K,Y02B,Y04S

Abstract:
A self-powered switching system comprising:a flextensional transducer, said flextensional transducer comprising; a first electroactive member having opposing first and second electroded major faces; said first opposing major face being substantially convex and said second opposing major face being substantially concave; a prestress layer bonded to said second major face of said first electroactive member; said prestress layer applying a compressive force to said electroactive member; wherein said flextensional transducer is adapted to deform from a first position to a second position upon application of a force to said flextensional transducer; and wherein upon said deformation to said second position, said flextensional transducer is adapted to generate a first voltage potential between said first electroded major face and said second electroded major face; a first conductor electrically connected to said first electroded major face of said first electroactive member; a second conductor electrically connected to said second electroded major face of said first electroactive member; first signal transmission means electrically connected to said first and second conductors; said first signal transmission means comprising a first radio frequency generator subcircuit connected to an antenna; signal reception means for receiving a first signal transmitted by said first signal transmission means; said signal reception means being adapted to generate a second signal in response to said first signal transmitted by said signal transmission means; and a switch having a first position and a second position; said switch being in communication with said signal reception means; said switch being adapted to change between said first position and said second position in response to said second signal.