Document Type and Number:
European Patent EP0424609
A piezoelectric device or actuator (30) includes dimorph stack (32) attached to a support (34). Affixed to the apex of stack (32) is friction surface (36) which is held in contact with the external friction surface of a positionable object (38).
Elizabeth Redmond is an inventor with big dreams of researching bigger and more complex gadgets. She decided to focus her effort on developing materials that could be used in the generation of piezoelectricity. Piezoelectricity [en.wikipedia.org] is created when certain special materials are compressed or bent by physical force. Elizabeth created a new type of technology called POWERLEAP, which is a flooring that generates electricity when people walk on it. As cool as this is, Elizabeth is setting her sights on even inventive solutions for the world's needs.