Abstract: A fluid dispensing device includes an electrostatic discharge protection system. Accumulation and discharge of electrostatic energy created by operation of the device is reduced or prevented by the electrostatic discharge protection system without an earth ground connection. The electrostatic discharge protection system may include a number of features, such as a static wick, nonconductive components that electrically isolate the spray tip of the device, nonconductive isolation barriers, nonconductive fluid reservoir and suction tube components, a nonconductive coating of a control valve component, and a nonconductive spring retainer of the control valve.

Abstract: A fluid dispensing device includes an electrostatic discharge protection system. Accumulation and discharge of electrostatic energy created by operation of the device is reduced or prevented by the electrostatic discharge protection system without an earth ground connection. The electrostatic discharge protection system may include a number of features, such as a static wick, non-conductive components that electrically isolate the spray tip of the device, nonconductive isolation barriers, nonconductive fluid reservoir and suction tube components, a nonconductive coating of a control valve component, and a nonconductive spring retainer of the control valve.

Abstract: A line striping system comprises a chassis, wheels, a spray system, a propulsion system and a steering system. The wheels are mounted under the chassis. The spray system is mounted on the chassis. The propulsion system is mounted on the chassis to drive a wheel. The steering system is coupled to the chassis. The steering system comprises a handlebar rotatable to steer a wheel, and a speed bar pivotable to control the propulsion system.

Abstract: An electro-hydraulic actuation system for a sprayer comprises a hydraulic system, a hydraulic actuator, an electric actuator and a sprayer. The hydraulic system is for pressurizing a hydraulic fluid. The hydraulic actuator is powered by the hydraulic system. The electric actuator controls actuation of the hydraulic actuator by the hydraulic system. The sprayer is actuated by the hydraulic actuator.

Abstract: A fluid dispensing device includes an electrostatic discharge protection system. Accumulation and discharge of electrostatic energy created by operation of the device is reduced or prevented by the electrostatic discharge protection system without an earth ground connection. The electrostatic discharge protection system may include a number of features, such as a static wick, non-conductive components that electrically isolate the spray tip of the device, nonconductive isolation barriers, nonconductive fluid reservoir and suction tube components, a nonconductive coating of a control valve component, and a nonconductive spring retainer of the control valve.

Abstract: Pressure relief valves may be used in conjunction with a small compressor in an air-assisted airless paint sprayer. The basic valve construction is industry standard spring-loaded poppet technology in an outer housing. The spring is preloaded to result in the valve venting the pressurized system to atmosphere at a desired pressure. The poppet valve 10 has a new geometry of the top or head 12 of the poppet 10. The poppet head 12 diameter is significantly larger than that used in the prior art designs and in the preferred embodiment is about twice the diameter of the seating surface.

Abstract: An engine generator set apparatus including an internal combustion engine including a drive shaft driving an electrical generator, the engine and the generator being disposed along a longitudinal axis. A housing substantially enclosing the engine and generator, the housing including air inlets and air outlets. A fan drawing outside ambient air through the air inlets in the housing and along an inlet air pathway, the generator being axially disposed intermediate of the fan and the engine.

Abstract: A low oil sensor especially for application with an internal combustion engine is provided with an over-center spring and diaphragm structure to maintain the sensor in the inactivated mode whenever there is an adequate oil level in an engine sump. Crankcase pulse pressures provide an adequate pressure differential across the diaphragm to move the switch to activate an indicator circuit and to stop the engine. Inadvertent switch operation is prevented by utilization of a check valve and bleed port arrangement. The switch can be reset by an externally operable reset plunger.

Abstract: A safety device for an implement powered by a four-stroke cycle internal combustion engine having a deadman control for reducing the time required to stop the engine when the deadman control is released is disclosed and includes a switch operable upon release of the deadman control to disable the engine ignition system and an arrangement for opening an engine valve at a time other than its normal opening time in the engine cycle. In one preferred embodiment an engine exhaust valve is opened about maximum at 25 degrees prior to top deadcenter position of the engine piston during its compression stroke.

Abstract: The spindle of a machine tool has a drawbar disposed therein for threaded engagement into and out of the toolholder inserted into the spindle bore to releaseably secure the toolholder within the spindle. Splined on the rearward end of the drawbar distal from the spindle is a spur gear which is shiftable into and out of engagement with a cluster gear driven by the spindle drive motor. When the spur gear on the rearward drawbar end is shifted into engagement with the cluster gear driven by the spindle drive motor, the drawbar will be rotatably threaded either into or out of the toolholder shank by the spindle drive motor and thus, the need for a separate motor to rotatably drive the drawbar is eliminated.

Abstract: A two-piece self-fastening primer bulb structure for an internal combustion engine has a bulb of relatively flexible material with an annular mounting ring at a lower extremity thereof along with a base of relatively more stiff resilient material having a slotted rim for sealingly receiving the bulb mounting ring. The base is provided with a pair of self-fastening protuberances to be forced into an apertured support such as an engine housing or other panel deforming as they pass therethrough and reexpanding to secure the base to the support.