Patent ID: 6196111
Filing Date: 2001-03-06
Classification: F16K,Y10S,Y10T

Abstract:
An actuator for converting linear motion into rotational motion, comprising:a) a fluid source, that is pressurized, having a first and second conduit;b) a linear motion device, including:i) a first and second volume, coupled to the first and second conduit for enabling fluid source flow to and from the first and second volumes respectively;ii) a first and second flexible band pair, located in the first and second volume respectively; andiii) whereby the first volume will change as the first band pair move in a linear direction as a result of fluid volume being changed in the first volume, and the second volume will oppositely change as the second band pair simultaneously move in a linear direction opposite to that of the first band pair as a result of fluid being changed in the second volume; andc) a rotary motion actuator, having:i) a cylinder, coupled directly to the first and second flexible band pairs;ii) a lever, coupled to the cylinder; andiii) both the first and second band pairs extending around the cylinder;iv) whereby as the flexible band pair moves in a linear direction, the cylinder will rotate causing the lever to move up and down dependent upon direction of the fluid source flow.