Patent ID: 7028985

Claim:
An externally activated inline control valve comprising: a valve housing connected to a flow line having an inlet through which materials enter the valve from a flow line and an outlet through which material leave the valve and re-enter the flow line; a plug member contained in the valve housing and positioned in a the valve housing such that said plug is in the path of materials traveling through the flow line and through the housing, said plug positioned in the housing such that said plug movement is in a direction parallel to the direction of fluid through the flowline; and an activation mechanism attached to said plug member to control the movement of said plug member within the valve housing, movement of the plug affecting the rate of flow of materials passing through the valve, said activation mechanism having a component that is positioned outside said valve housing and said activation mechanism further comprises: a rack sear attached to said plug; a pinion arm that engages the rack gear; and a shaft connected to the pinion arm to facilitate rotation of the pinion arm.