A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.

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 rotatatable to steer a wheel, and a speed bar pivotable to control the propulsion system.

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 rotatatable to steer a wheel, and a speed bar pivotable to control the propulsion system.

A sample dispenser includes a dosing unit, a cradle assembly, and tubing connecting the dosing unit and the cradle assembly. The dosing unit is configured to dispense sampling amounts of a flowable substance and includes a nozzle and a mechanical pump communicating with the nozzle. The cradle assembly includes a priming cradle configured to hold a compressible container of the flowable substance and to force the flowable substance out of the compressible container by applying a compressive force to the compressible container. The tubing allows communication of the flowable substance between the compressible container and the pump.

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.

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.

A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.

A fluid sprayer includes a spray gun that is configured to output a spray of fluid for application on a substrate. A trigger of the spray gun is operatively connected to a controller to control actuation of a pump that drives the spray fluid to the spray gun. A solenoid is connected to a spray valve of the spray gun to actuate the spray valve open to cause spraying by the fluid sprayer.

A fluid sprayer includes a spray gun that is configured to output a spray of fluid for application on a substrate. A trigger of the spray gun is operatively connected to a controller to control actuation of a pump that drives the spray fluid to the spray gun. A solenoid is connected to a spray valve of the spray gun to actuate the spray valve open to cause spraying by the fluid sprayer.

A tank holding a quantity of liquid releasably connects to a portable pump assembly through a connector to provide a portable sprayer. The tank connects to a feed line that supplies spray nozzle with the liquid. The connector combines a quick disconnect connector with a pressure relief valve. The portable pump assembly includes an electric pump, a switch assembly, and a check valve. The portable pump assembly directs gas through the check valve into the connector to increase the gas pressure in the tank and force the liquid in the tank to flow through the feed line and out the spray nozzle. The switch assembly turns off the electric pump when the gas pressure in the tank exceeds a predetermined limit while maintaining the flow of liquid through the spray nozzle.