Patent ID: 6420814
Filing Date: 2002-07-16
Classification: H02N

Abstract:
A transducer compressible in a portion of the transducer in response to electric power, comprising:(a) a flexible, conductive plastic layer microimprinted with a tread-like pattern; and (b) a stiff plastic layer containing a conductive embedded sheet, wherein the flexible layer and the stiff layer are formed by multiply winding together around a central form, so that the microimprinted flexible layer is bounded by stiff layers, wherein compression of the transducer in the compressed portion of the transducer is perpendicular to the plane of the conductive embedded sheet and to the linear axis of the central form, and wherein the flexible layer is distorted during compression of the transducer while the stiff layer remains parallel to the surface of the central form in the compressed portion of the transducer.