Patent ID: 6405533
Filing Date: 2002-06-18
Classification: B25J,F16F,G05B

Abstract:
An actuator apparatus comprising:at least one actuator device movable in a predetermined direction; a chamber having an outlet portion, a deflectable portion, and a movable wall coupled to the at least one actuator device, said chamber having an inner portion with a relatively incompressible fluid contained therein; and a movable end portion located at the outlet portion of said chamber; wherein said moveable wall is moved causing the deflectable portion to be deflected in response to the movement of the at least one actuator device, and wherein the movement of said movable wall causes a first volume of the fluid to be displaced and the deflection of the deflectable portion causes a second volume of the fluid to be displaced which together cause the end portion to be moved an amount greater than that which would result from displacing only the first volume of the fluid, and wherein a distance across a cross-section of the inner portion of said chamber prior to movement of said movable wall is greater than the distance across the cross-section of the inner portion of said chamber after the movement of said movable wall.