Patent ID: 7384016

Claim:
An arrangement for producing a variation in the contour of a compliant surface, the arrangement comprising: a compliant frame having, a first resiliently variable frame element having a corresponding first outer surface and a first inner surface, and a second resiliently variable frame element having a corresponding second outer surface and a second inner surface, the first outer surface being arranged in substantially distal opposition to the second outer surface and in communication with the compliant surface, wherein the variation in the contour of the compliant surface is responsive to variation in the contour of the first outer surface of said compliant frame; a linkage element having a predetermined resilience characteristic and being resiliently coupled at a first end thereof to the first inner surface and at a second end thereof to the second inner surface; and an actuator for applying a force to the second resiliently variable frame element with respect to a support element, whereby application of the force by said actuator results in a corresponding variation in the contour of the compliant surface.