A device for use in OVJP and similar arrangements includes a print head movable in more than one degree of freedom with sufficient thermal insulation that there is little to no movement in the Z direction. One or more sensors may be used to monitor and adjust the distance between the substrate and the print head.

A battery powered fluid sprayer includes a battery mounted to a vertically extending wall of the fluid sprayer. The battery powers an electric motor to power a pump to pump fluid to a spray gun for spraying. The battery is disposed within a battery chamber enclosed by a door. The battery is suspended above a base of the battery chamber to isolate battery from any fluid that may enter the chamber.

Various embodiments of the present disclosure are directed to an Unmanned Aerial System (UAS) for applying a liquid to a surface. According to various embodiments, the UAS includes an Unmanned Aerial Vehicle (UAV) including flight control mechanisms. The UAV is configured to receive first control signals and to adjust an operational configuration of the flight control mechanisms in response to the first control signals. The UAS further includes a delivery assembly coupled to the UAV, where the delivery assembly is configured to receive second control signals and to apply the liquid to the surface located proximately to the UAV in response to the second control signals. The UAS further includes a control unit coupled to the UAV and the delivery assembly, the control unit configured to transmit the first and second control signals to the UAV and the delivery assembly, respectively.

A system and method for producing a fragrance. The system may include body having a plurality of chambers defined therein. Each chamber may include a fragrance accord. A circuit and a plurality of emitters may be positioned within the body. The emitters may be connected to and controlled by the circuit, and each of the emitters may be positioned adjacent to a corresponding one of the chambers and control ejection of the fragrance accord therein.

An effective implementation is shown for a height adjustment system for a plurality of spray guns used in a line striper.

Disclosed herein are adhesive splitter systems and methods for using the same. The adhesive splitter systems comprise a multi-nozzle adapter configured to dispense multiple streams of adhesive onto a substrate. The splitter system can also include an attached adhesive dispenser for providing adhesive to the multi-nozzle adapter.

An improved hot water pressure washer utilizes a combination of technologies to achieve lower emission levels and increased operational efficiency. A forced air natural gas or forced air oil burner utilizes a flue gas and recirculation line to lower carbon monoxide and NOx emissions from a burner. A flue gas heat exchanger is utilized to lower the temperature of the exhaust gas. The lower exhaust gas temperatures allow for lower cost materials to be utilized. The efficiency levels of a hot water pressure washer are increased over known devices.

A cleaning apparatus, including: a hollow handle with a first end and a second end; a spray manifold having an inlet and a plurality of outlets along a length of the spray manifold; and a plurality of wheels supporting the spray manifold; wherein the inlet of the spray manifold is connected to the first end of the handle via a swivel coupling assembly, such that the spray manifold is rotatable in two orthogonal directions relative to the handle; and wherein the second end of the handle is configured to receive a fluid.

A drum coater for applying a surface layer on bulk-like materials includes a rotatably mounted drum for accommodating bulk-like materials, inlet and outlet openings, at least one spray nozzle for applying the surface material, a drying device for a drum interior, at least first and second radially-offset mixing tools in the drum, the first mixing tool protruding into the drum interior. The at least one second mixing tool has at least one mixing surface such that the first mixing tool is at least partially arranged on the drum inner surface and the at least one second mixing tool has at least one opening on the at least one mixing surface. A mixing tool to be used in a drum coater to gently blend and/or homogenize bulk-like materials has a first mixing surface angled relative to a second mixing surface, at least one mixing surface having at least one opening.

A drum coater for applying a surface layer on bulk-like materials includes a rotatably mounted drum for accommodating bulk-like materials, inlet and outlet openings, at least one spray nozzle for applying the surface material, a drying device for a drum interior, at least first and second radially-offset mixing tools in the drum, the first mixing tool protruding into the drum interior. The at least one second mixing tool has at least one mixing surface such that the first mixing tool is at least partially arranged on the drum inner surface and the at least one second mixing tool has at least one opening on the at least one mixing surface. A mixing tool to be used in a drum coater to gently blend and/or homogenize bulk-like materials has a first mixing surface angled relative to a second mixing surface, at least one mixing surface having at least one opening.