A compact spraying device (10) connectable to a surface and for spraying a fluid comprises a housing (16) with an inlet (20), a pump (28) in fluid communication with the inlet (20), a retractable nozzle (24) in fluid communication with the pump (28), a nozzle cover (22) and a drive system (30). The retractable nozzle (24) selectively extends forward relative to a front side of the housing (16) into a spraying position for spraying the fluid and retracts inside the housing to a retracted position when not spraying. The nozzle cover (22) is selectively moveable from a closed position in which the cover (22) covers the nozzle (24) when the nozzle (24) is in a retracted position, to an open position in which the cover (22) moves to allow the nozzle (24) to extend into the spraying position. The drive system (30) moves the retractable nozzle (24) and the nozzle cover (22) and operates the pump (28).

An application system component is provided in the form of a changeable application member such as a nozzle or a bell cup. The application system component includes a transponder for storing component data, from which the component data is readable, and a wear detection device for monitoring of the application system component. The wear detection device includes a wear mark and an optical detector.

An ultrasonic atomizer for maintaining a constant temperature of an ultrasonic vibration generating unit by decreasing a temperature at the periphery of the ultrasonic vibration generating unit even under an environment in which the ultrasonic vibration generating unit is exposed to a high temperature is provided. The ultrasonic atomizer includes: an ultrasonic vibration generating unit which generates ultrasonic waves and atomizes a spray material; a nozzle unit; a housing; and a heat exchange unit which surrounds the ultrasonic vibration generating unit, includes a separation wall which divides the heat exchange unit into heat exchange chambers, and cools heat generated from the ultrasonic vibration generating unit, in which the heat exchange chambers include: a heating chamber; and a cooling chamber which surrounds the heating chamber, and includes a cooling space by being isolated with the heat exchange unit abutting the heating chamber between the cooling chamber and the heating chamber.

A shower header spray device including an elongated spray header supporting a plurality of laterally spaced liquid spray nozzles each having a central dome formed with an elongated discharge orifice. The spray nozzles each are mounted in a respective pocket of the header, and an elongated rotatable cleaning brush assembly is provided for cleaning the discharge orifices of the spray nozzles. The spray nozzles each have an integrally formed externally threaded mounting ring which captively carries an annular sealing member, and the spray header pockets each are internally threaded for receiving respective spray nozzle screwed into the pocket with the annular sealing member interposed therebetween. The spray nozzles each have a pair of indicator notches to facilitate alignment of the elongated discharge orifices of the spray nozzles in common relation to a longitudinal axis of the spray header.

Tunable thermoplastic polymer sealants and tunable conductive thermoplastic polymer sealants, and edge seals and fillet seals produced from such sealants; and substrates, components and objects comprising the tunable edge seals and fillet seals, and methods for making and applying such edge seals and fillet seals are disclosed.

Tunable thermoplastic polymer sealants and tunable conductive thermoplastic polymer sealants, and edge seals and fillet seals produced from such sealants; and substrates, components and objects comprising the tunable edge seals and fillet seals, and methods for making and applying such edge seals and fillet seals are disclosed.

A cooling system for a cold spray nozzle or a thermal spray barrel and a fabrication method thereof are provided. The cooling system includes a sleeve with cooling fins that encapsulate a spray nozzle or barrel to enable heat transfer from the nozzle or barrel to the fins and then to the external ambient environment. The sleeve may optionally include one or more channels with cooling tubes to enable enhanced cooling with a cooling medium flowing through the tubes and across the fins.

A cooling system for a cold spray nozzle or a thermal spray barrel and a fabrication method thereof are provided. The cooling system includes a sleeve with cooling fins that encapsulate a spray nozzle or barrel to enable heat transfer from the nozzle or barrel to the fins and then to the external ambient environment. The sleeve may optionally include one or more channels with cooling tubes to enable enhanced cooling with a cooling medium flowing through the tubes and across the fins.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.