Patent ID: 7902727
Filing Date: 2011-03-08
Classification: A43B,H01L,H02N

Abstract:
1. An apparatus for generating electricity comprising a first elongate member and a second elongate member, the first and second elongate members being joined together at first and second points which are spaced apart from each other, the second elongate member comprising a piezoelectric element or having a piezoelectric element mounted thereon; whereby when pressure is applied to the first elongate member the first elongate member applies a stretching force to the second elongate member via said first and second points, said stretching force pulling said first and second points in opposite directions thereby applying a stretching force to the piezoelectric element and wherein the apparatus further comprises at least one spacer between the first elongate member and the piezoelectric element, said at least one spacer being arranged for contacting the piezoelectric element between the first and second points; whereby when sufficient pressure is applied to the first elongate member the at least one spacer transmits a compressive force to the piezoelectric element.