Patent ID: 8662857
Filing Date: 2014-03-04
Classification: B05B,F04B,F16K,Y10T

Abstract:
1. A fluid sprayer comprising: a fluid pump configured to generate a flow of pressurized fluid from a fluid pump outlet; a motor configured to drive the fluid pump, the motor having a motor control component, wherein displacement of the motor control component controls operation of the motor; and a fluid pressure control mechanism including a pressure transducer configured to be displaced as a function of fluid pressure and mechanically coupled to the motor control component through at least one mechanical linkage assembly that displaces the motor control component as a function of displacement of the pressure transducer, the mechanical linkage assembly including a device configured to amplify or reduce the displacement of the motor control component relative to the displacement of the pressure transducer, wherein the device is configured to rotate about an axis and comprises a first arm operably coupled to the pressure transducer and a second arm configured to control a speed of the motor in response to rotation of the device caused by displacement of the pressure transducer.