Patent ID: 8555919
Filing Date: 2013-10-15
Classification: F16K,Y10T

Abstract:
1. A ball valve, comprising: a valve housing, the valve housing having a main passage defined therein; a valve assembly, comprising: a handle disposed on the valve housing, the handle being connected to the valve stem and operable to rotate the valve stem and the valve body to move the valve body between the open and closed positions; and a switch disposed within the housing, the switch operatively engaging the valve assembly and being configured to transmit a signal to an operator's station regarding the position of the valve body, wherein the switch is disposed within the housing adjacent to the valve stem, the switch includes a lever arm that engages the valve stem, and the lever arm is movable to actuate the switch to transmit the signal, wherein the valve stem has an outer diameter and a recessed portion, and the recessed portion and the outer diameter define a cam profile that engages the lever aim of the switch, wherein the outer diameter of the valve stem is defined by an arcuate exterior surface of the valve stem, and wherein the recessed portion is defined in the outer diameter of the valve stem and comprises a recess formed in the valve stem, and the recess comprises at least one surface that intersects with the arcuate exterior surface.