A droplet jetting apparatus includes: a nozzle that ejects a jet of liquid droplets; a detector that detects a hand or an object in a flight path of liquid droplets from the nozzle; a pump including a suction portion for suction of liquid, and a discharge portion which is connected to the nozzle and discharges the liquid which has been sucked into the suction portion; a driver which by rotation of a cam, sucks liquid into the pump and discharges the liquid in a compressed state; and controller which actuates the driver. When the detector detects the hand or object, the controller actuates the pump by rotation of the cam, and ejects a jet of liquid in droplet form from the nozzle.

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 painting assembly may be configured to removably support a paint container having an outer surface. The assembly may include a paint sprayer having a mounting portion with a support portion and a flange, a motor, a pump, a siphon line configured to draw paint from the paint container, and a dispensing line configured to dispense paint via pressure from the pump. The assembly may include a dolly having a base and wheels. The base may have a sidewall with an upper edge. When the paint container is received in the base, the support portion of the mounting portion may be configured to rest on the paint container and the flange may be configured to extend over the outer surface of the paint container, such that the paint sprayer may be supported on the paint container and inhibited from moving in a lateral direction off of the paint container.

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.

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.

A skid sprayer system includes a frame, a tank configured to hold a fluid, a hydraulic control system including a pump and a control valve, a hose fluidly coupled to the tank for dispensing the fluid, an electric motor operably coupled to the hydraulic pump, and a power module including a battery electrically coupled to the electric motor. The pump is operably driven by the electric motor. The pump comprises an input fluidly coupled to the tank and an outlet fluidly coupled to the hose.

A skid sprayer system includes a frame, a tank configured to hold a fluid, a hydraulic control system including a pump and a control valve, a hose fluidly coupled to the tank for dispensing the fluid, an electric motor operably coupled to the hydraulic pump, and a power module including a battery electrically coupled to the electric motor. The pump is operably driven by the electric motor. The pump comprises an input fluidly coupled to the tank and an outlet fluidly coupled to the hose.

A fluid spraying system includes a fluid applicator having a tip that atomizes a fluid. The fluid spraying system also includes a pump configure to pump the fluid from a fluid source to the tip and a control system. The control system identifies at least one characteristic of the tip or the fluid and communicatively couples to the pump. The control system also controls an operating characteristic of the fluid spraying system based on a characteristic of the tip or the fluid.

A hydration system is provided. The hydration system includes a container configured to receive and maintain a quantity of liquid, a pump connected to the container, a hose system comprising a plurality of hoses connected to the container and the pump and configured to receive liquid from the container, and an end piece connected to one of the plurality of hoses configured to be used by a user of the hydration system. The pump is configured to circulate liquid through the hose system and container to maintain a relatively similar liquid temperature for all liquid contained in the hose system and container.