Abstract: This disclosure presents several options for spraying paint on large elevated surfaces. In a first example, a lift is equipped with sensors to move a painter along the wall in a serpentine pattern while maintaining a constant separation distance and orientation to facilitate spraying of the wall. In a second example, a spray stamp frame is positioned on the wall in a plurality of different positions to spray discrete portions of the wall by a slide bar that moves along the spray stamp frame at each position. In a third example, one or more cables are strung between vertical supports along the wall and a spray module is moved along or by the cables to spray the horizontal stripe, and this process is repeated to spray a plurality of horizontal stripes at different elevations to spray the wall.

Abstract: A spray tip includes a cylindrical body having a through hole oriented along a fluid flow axis, and a spray outlet piece and upstream chamber piece located in the through hole. The spray outlet piece includes an outlet aperture configured to atomize a spray fluid. The upstream chamber piece includes an internal aperture wall with an upstream surface and a downstream surface, and an aperture through the wall. The aperture includes an inlet orifice and an outlet orifice. The spray tip further includes a turbulation chamber defined by the spray outlet piece and the upstream chamber piece.

Abstract: A fluid sprayer includes a pump and an electrostatic module configured to provide an electrostatic charge to spray fluid. The electrostatic module is electrically connected to a conductive component of the fluid sprayer, such as a fluid displacement member, fitting, cylinder, or spray tip, to charge the spray fluid via the conductive component. The fluid is electrostatically charged prior to exiting the fluid sprayer.

Abstract: A handheld fluid sprayer is configured to draw spray fluid from a reservoir mounted on the fluid sprayer and eject the spray fluid through a nozzle. The reservoir is removably mounted to the fluid sprayer. A priming pathway extends through the fluid sprayer and routes air out of the reservoir to prime the pump. The priming pathway extends from the reservoir and to a side of the pump opposite the reservoir.

Abstract: A spray tip is configured to atomize thick, viscous fluids. The spray tip includes a pre-orifice piece having an inlet orifice that defines a first restriction in a fluid path through the spray tip. The spray tip also includes a tip piece having an outlet orifice that defines a second restriction in the fluid path. The first and second restrictions are the portions of the fluid path having the smallest flow areas. A cross-sectional area of the outlet orifice is greater than a cross-sectional area of the inlet orifice.

Abstract: A handheld fluid sprayer is configured to draw spray fluid from a reservoir mounted on the fluid sprayer and eject the spray fluid through a nozzle. The reservoir is removably mounted to the fluid sprayer. A priming pathway extends through the fluid sprayer and routes air out of the reservoir to prime the pump. The priming pathway extends from the reservoir and to a side of the pump opposite the reservoir.

Abstract: A handheld fluid sprayer (10) is configured to draw spray fluid from a reservoir (14) mounted on the fluid sprayer and eject the spray fluid through a nozzle (32). The reservoir is removably mounted to the fluid sprayer. A filling apparatus can connect to the reservoir at the same interfaced that the reservoir (14) connects to the fluid sprayer (10). The filling apparatus can be used to refill the reservoir (14).

Abstract: A fluid sprayer includes a pump and an electrostatic module configured to provide an electrostatic charge to spray fluid. The electrostatic module is electrically connected to a conductive component of the fluid sprayer, such as a fluid displacement member, fitting, cylinder, or spray tip, to charge the spray fluid via the conductive component. The fluid is electrostatically charged prior to exiting the fluid sprayer.

Abstract: A spray tip is configured to atomize thick, viscous fluids. The spray tip includes a pre-orifice piece having an inlet orifice that defines a first restriction in a fluid path through the spray tip. The spray tip also includes a tip piece having an outlet orifice that defines a second restriction in the fluid path. The first and second restrictions are the portions of the fluid path having the smallest flow areas. A cross-sectional area of the outlet orifice is greater than a cross-sectional area of the inlet orifice.

Abstract: A pump draws fluid from a reservoir and drives the fluid downstream to a spray tip where the fluid is applied to a surface. The pump includes a polymer pump body and a metallic piston configured to reciprocate relative to and within the polymer pump body. The metallic piston interfaces with an inner cylinder formed within the polymer pump body and pumps fluid through the polymer pump body to a spray nozzle downstream of the inner cylinder.

Abstract: A fluid sprayer includes a pump and an electrostatic module configured to provide an electrostatic charge to spray fluid. The electrostatic module is electrically connected to a conductive component of the fluid sprayer, such as a fluid displacement member, fitting, cylinder, or spray tip, to charge the spray fluid via the conductive component. The fluid is electrostatically charged prior to exiting the fluid sprayer.

Abstract: A spray tip includes a body portion with an aperture extending through the body portion from an aperture inlet to an aperture outlet, and a handle portion attached to the body portion. The handle portion is configured to rotate the body portion. A retainer with an upstream end and a downstream end is positioned in the aperture of the body portion. A pre-orifice piece with an upstream end and a downstream end is positioned in the aperture of the body portion. A tip piece with an upstream end and a downstream end is positioned in the aperture of the body portion. The downstream end comprises an outlet nozzle.

Abstract: A spray tip includes a cylindrical body having a through hole oriented along a fluid flow axis, and a spray outlet piece and upstream chamber piece located in the through hole. The spray outlet piece includes an outlet aperture configured to atomize a spray fluid. The upstream chamber piece includes an internal aperture wall with an upstream surface and a downstream surface, and an aperture through the wall. The aperture includes an inlet orifice and an outlet orifice. The spray tip further includes a turbulation chamber defined by the spray outlet piece and the upstream chamber piece.

Abstract: A handheld sprayer comprises a housing, a turbine, a spray tip, a hopper and a trigger. An air flow passage extends through the housing. The turbine is configured to generate an airflow within the air flow passage. The spray tip is positioned to receive airflow from the air flow passage. The hopper is connected to the housing and is configured to discharge a fluid into the air flow passage. The trigger is mounted to the housing to control discharge of the hopper into the flow passage and airflow form the turbine. In different embodiments, the trigger controls airflow from the turbine to the spray tip or the hopper or both. Additionally, a method for spraying a fluid from a handheld sprayer comprises controlling airflow from a turbine and discharge from a hopper into a passage using a combined actuator.

Abstract: A spray tip includes a body portion with an aperture extending through the body portion from an aperture inlet to an aperture outlet, and a handle portion attached to the body portion. The handle portion is configured to rotate the body portion. A retainer with an upstream end and a downstream end is positioned in the aperture of the body portion. A pre-orifice piece with an upstream end and a downstream end is positioned in the aperture of the body portion. A tip piece with an upstream end and a downstream end is positioned in the aperture of the body portion. The downstream end comprises an outlet nozzle.

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 handheld sprayer includes a housing, a turbine, a spray tip, and a hopper. An air flow passage extends through the housing. The turbine is configured to generate an airflow within the air flow passage. The spray tip is positioned to receive airflow from the air flow passage. The hopper is connected to the housing and configured to discharge a fluid into the air flow passage. In one embodiment a valve is positioned within the air flow passage and configured to control the airflow from the turbine to the spray tip. In another embodiment, a voltage limiting circuit is configured to control voltage to an electric motor of the turbine to control speed of the turbine. In another embodiment, an air inlet control device is configured to control the air intake of the turbine.

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, 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.