Patent ID: 7337559
Filing Date: 2008-03-04
Classification: A43B

Abstract:
1. A sole construction, comprising: a stretchable layer, wherein the first stretchable layer has a first side and a second side; an actuator layer, wherein the actuator layer has a plurality of actuators, at least one actuator positioned on the first side of the first stretchable layer; a chamber layer, wherein the chamber layer has a plurality of chambers, at least one chamber positioned on the second side of the stretchable layer to receive a corresponding actuator on the first side of the stretchable layer; and at least one perimeter wall, the perimeter wall surrounding the stretchable layer to prevent horizontal displacement of said layer when one of said actuators is compressed against said layer into a corresponding chamber; wherein the chamber layer has a plurality of actuators, at least one actuator positioned on the second side of the stretchable layer; wherein the actuator layer has a plurality of chambers, at least one chamber positioned on the first side of the first stretchable layer to receive a corresponding actuator on the second side of the stretchable layer; wherein the chamber layer forms a portion of at least one perimeter wall and restrains a portion of the stretch layer from horizontal displacement.