Abstract: A fluid application system includes a pump unit configured to pump a fluid to a fluid applicator. The fluid application system includes a sensor configured to sense a motion made by a user and generate a sensor signal indicative of the sensed motion. The fluid application system also includes a control system configured to identify a gesture based on the sensor signal and control the fluid application system based on the identified gesture.

Abstract: A spray gun for a plural component system is provided. The spray gun includes a first component delivery line and a second component delivery line. The spray gun also includes a nozzle, configured to receive and mix a first component received from the first component delivery line with a second component received from the second component delivery line. The spray gun also includes an air purge system configured to, when the spray gun is in a non-actuated position, purge the nozzle of the first and second components and, when the spray gun is in an actuated position, aid in atomization of the mixture of the first and second components.

Abstract: A modular fluid delivery assembly is provided. The modular fluid delivery assembly comprises a fluid conduit. The modular fluid delivery assembly also comprises an electrical heating element disposed within the fluid conduit. The electrical heating element is configured to provide a heat source within the fluid conduit. The modular fluid delivery assembly also comprises a connection assembly, located proximate an end of the modular fluid delivery assembly, coupled to the heating element and the fluid conduit. The connection assembly is configured to provide a hydraulic coupling to the fluid conduit, and to provide an electronic coupling to the electrical heating element.

Abstract: A mixer for a plural component spray gun is presented. The mixer has a mixer body comprising a mixing chamber with an outlet. The mixer also has a first fluid component inlet, coupled to a first fluid conduit, configured to introduce a first fluid component into the mixing chamber. The mixer also has a second fluid component inlet, coupled to a second fluid conduit, configured to introduce a second fluid component into the mixing chamber. The first and second fluid component inlets are offset with respect to a centerline of the mixing chamber and positioned such that a first fluid flow from the first inlet is directed toward the outlet, and a second fluid flow from the second inlet is directed toward the outlet.

Abstract: A method of identifying a spray tip from a plurality of spray tips based on a selected fluid is presented. The method comprises the step of selecting the fluid. The fluid is characterized by a set of given physical parameters. The method also comprises the step of selecting an application pressure. The application pressure is sufficient to cause atomization of the fluid through the spray tip. The method also comprises the step of selecting the spray tip for the fluid applicator, based on characteristics of the fluid. The spray tip is selected based on an ability to process the fluid. The spray tip is selected such that the fluid has a viscosity on the order of 10 mPa·s in the shear rate range of 104-106 s?1 to ensure a turbulent flow downstream of a pre-orifice.

Abstract: An aerial paint spraying vehicle includes a body and a paint reservoir removably coupled to the body and configured to store paint. The aerial paint spraying vehicle includes a pressure vessel removably coupled to the body and configured to pressurize the paint from the paint reservoir. The aerial paint spraying vehicle includes a paint applicator assembly configured to receive the pressurized paint and expel the pressurized paint through a spray nozzle towards a target surface.

Abstract: An applicator is presented. The applicator comprises a fluidic channel extending from a fluid inlet to a fluid outlet. The applicator also comprises a trigger. The trigger is configured to, when actuated, allow fluid to flow through the fluidic channel. The applicator also comprises an adjustable handle with a frame. The handle comprises a finger rest on a first side of the frame. The handle also comprises a grip on a second side of the frame. The second side is opposite the first side. The grip is coupled to the frame by an adjustment mechanism that, when actuated, is configured to change a distance between the finger rest and the grip.

Abstract: An example fluid applicator device includes an applicator assembly, and a reservoir assembly configured to store a fluid and is rotatable, relative to the applicator assembly, to control a valve mechanism that controls a flow of the fluid from the reservoir assembly to the applicator assembly, wherein the applicator assembly is configured to apply the fluid to a surface.

Abstract: A liquid delivery system is presented. The liquid delivery system comprises a source of fluid coupled to an outlet. The liquid delivery system also includes a hydraulic cylinder coupled to the source of fluid. The hydraulic cylinder has a piston movable between a first limit position and a second limit position during an operational cycle. The hydraulic cylinder is configured to pressurize fluid received from the source of fluid, and deliver the pressurized fluid to the outlet. The liquid delivery system also comprises a rod connected to the piston and extending out of the cylinder. The liquid delivery system also comprises a sensor configured to sense a position of the rod to provide a signal indication of the piston with respect to the first position or the second position. An indication of the sensed position is provided to a controller, and the controller is configured to send a control signal to initiate a normal operation loop based on the sensed position.

Abstract: A spray tip configuration for a low pressure fluid sprayer is presented. The spray tip configuration comprises an inlet orifice configured to receive a fluid and to produce a turbulent flow at a known operating point. The spray tip configuration also comprises an outlet orifice configured to emit the fluid in a spray pattern at a turbulence intensity. The spray tip configuration also comprises a passageway fluidically coupling the inlet orifice to the outlet orifice, with a plurality of portions configured to produce the turbulence intensity at the outlet orifice. The passageway comprises a first portion comprising an expansion chamber configured to provide an expanding cross-section from a first portion first end to a first portion second end. The passageway also comprises a second portion comprising a first hydraulic diameter, wherein the second portion is fluidically coupled, on a second portion first end, to the first portion second end.

Abstract: In one embodiment, a fluid delivery system includes a motor assembly and a fluid pump assembly. The fluid pump assembly is spaced apart from the motor assembly, and at least one of the motor assembly or the fluid pump assembly is movable to change a distance between the motor assembly and the fluid pump assembly. The fluid delivery system includes a flexible linkage that couples the motor assembly to the fluid pump assembly, and is configured to transfer motion from the motor assembly to the fluid pump assembly. Further, the fluid delivery system comprises a linkage tightening mechanism configured to generate a tightening force on the linkage by biasing at least one of the motor assembly or the fluid pump assembly in a direction that increases the distance between the motor assembly and the fluid pump assembly.

Abstract: A finger rest for a liquid applicator is presented. The finger rest comprises a base. The finger rest also comprises an aperture configured to receive a handle of the liquid applicator. The base is configured to rotationally align with a head of the liquid applicator at a junction.

Abstract: A fluid applicator configured to deliver fluid at a pressure is provided. The fluid applicator comprises an inlet and an outlet. The fluid applicator also comprises a fluid path extending from the inlet to the outlet. The fluid enters the inlet and exits the outlet at the pressure. The fluid applicator also comprises a trigger configured to, when actuated, facilitate the fluid flow through the fluid path. The fluid applicator also comprises a locking mechanism configured to extend through a body of the fluid applicator, and configured to transition between a locked position and an unlocked position. In an unlocked position, the trigger can actuate and, in a locked position, the trigger is inhibited from actuating.

Abstract: The line striper comprises a material deployment system configured to receive a material from a material source and deliver the received material to a deployment mechanism, wherein the deployment mechanism is configured to apply the received material to a surface. The line striper also comprises a mechanical debris removal system configured to, when actuated, move along an application path ahead of the deployment mechanism such that debris is dislodged from the surface, wherein the mechanical debris removal system comprises a contact mechanism configured to facilitate dislodging of the debris from the surface.

Abstract: A fluid applicator configured to reduce user fatigue is presented. The applicator comprises an inlet and an outlet fluidically coupled by a fluid path. The applicator also comprises a trigger. The trigger is configured to, when actuated, move between a closed position and an open position. The open position comprises a fluid flowing from the inlet, to the outlet, along the fluid path. The applicator also comprises a trigger support configured to reduce a pressure required to maintain the trigger in an open position. The trigger support is configured to reduce the pressure required as the trigger actuates between the closed position and the open position.

Abstract: A fluid applicator configured to reduce user fatigue is presented. The fluid applicator comprises a trigger configured to, when actuated, move between a closed position and an open position, wherein the open position comprises a fluid flowing from the inlet, to the outlet, along the fluid path. The trigger also comprises a trigger support configured to, when actuated, reduce a pressure required to maintain the trigger in an open position.