A powder coating spray gun reservoir assembly, including a first section including a first end, a second end, and a first lateral wall extending between the first end and the second end, a second section including a third end engaged with the second end, a fourth end, and a second lateral wall extending between the third end and the fourth end, a screen removably arranged between the first section and the second section, and an agitator rotatably arranged in the first section, wherein the agitator is operatively arranged to rotate relative to the screen to displace powder from the first section to the second section.

A rear casing is disclosed for a spray gun that has a handle part and a gun barrel connected to the handle part. The rear casing can be removably and exhangeably attached to the rear side of a main body of the spray gun and has a first region designed as a handle casing and a second region designed as a covering casing for rear-side covering of a rear region of the gun barrel. At least one connection element is provided on the second region of the rear casing for optionally forming a removable connection to a part having, for this purpose, at least some portions with a design complementing that of said connection element. In particular, according to the invention, the entire rear casing, together with the at least one connection element, is designed as a monolithic plastic component, in particular a plastic injection moulded molded part.

An electrostatic atomizing apparatus includes a main body portion, a container, a first air flow path, a second air flow path, an electrostatic atomization unit, and an air flow generation unit. The container is detachable from the main body portion, is capable of storing a liquid, and includes a first ventilation hole and a second ventilation hole. The first air flow path includes a first end that includes an air suction port, and a second end that connects to the first ventilation hole. The second air flow path includes a third end that connects to the second ventilation hole, and a fourth end that includes an air exhaust port. The electrostatic atomization unit is disposed on the second air flow path. The air flow generation unit generates an air flow that causes air to flow through the first air flow path, through the container, and through the second air flow path.

The liquid container according to the present disclosure is a liquid container to be detachably attached to the main body portion of an apparatus. The liquid container includes a container main body, a ventilation hole, and a lid. The container main body includes an upper portion, a bottom portion, and side portions connecting the upper portion and the bottom portion. The container main body is capable of storing a liquid. The ventilation hole penetrates the upper portion of the container main body. The lid is disposed on an inner side of the container main body and, when the liquid is stored in the container main body, is capable of closing or opening the ventilation hole according to a change in a surface of the liquid. The lid includes a fulcrum positioned closer to the side portion of the container main body than to the ventilation hole. The lid is pivotable around the fulcrum with respect to the ventilation hole.

A dry powder coating apparatus for coating pharmaceutical solid dosage forms includes a housing; a drum coater; a powder coating system; a liquid spray system; a ventilation system; a heating system; a touch screen control panel; and an operation box. The drum coater may have a truncated cone on both sides, in which one side is opened and another side is closed. The drum coater is horizontally placed inside the operation box along its axis and fixed on a rotatable shaft and a motor drives the rotatable shaft and rotates the drum coater about its own axis.

One aspect of the present invention relates to a device for managing a fine particle concentration of a target region by supplying charges to a target region, the device comprising: a container configured to store liquid, at least one nozzle configured to output the liquid, a pump configured to supply the liquid from the container to the at least one nozzle, a power supply configured to supply power to the device, and a controller configured to supply the charges to the target region through the at least one nozzle by using the power supply, wherein the controller is configured to, by using the power supply, apply a voltage equal to or greater than a reference value to the at least one nozzle, and provide electric force in a direction away from the device to the fine particles in the target region charged by the supplied charges.

A liquid-repellent plastic molded body 1 according to the present invention has a liquid-repellent surface. The liquid-repellent surface has a re-entrant structure surface formed by an array of pillars 20 each having a head portion 20a with an enlarged diameter. At least a part of the re-entrant structure surface has a fluorine-containing surface in which fluorine atoms are distributed.

Techniques related to retroreflective surface layers for micro-mobility transit vehicles are disclosed. A retroreflective surface layer may be formed over at least a portion of a component of a micro-mobility transit vehicle by forming a powder coat layer over the portion of the component and baking the powder coat layer to cure the powder coat layer. An uncured clear coat layer may be formed over the powder coat layer. The uncured clear coat layer may be impregnated with a plurality of glass beads via an air-pressure applicator. The uncured clear coat layer impregnated with the glass beads may be baked to cure the clear coat layer. The retroreflective surface layer may include the powder coat layer, clear coat layer, and the plurality of glass beads distributed within the clear coat layer. The retroreflective surface layer may reflect incident light back to its source with minimal scattering of the light.

A coating booth (101) for elements to be coated. The coating booth (101) comprises a passage between opposing vertical sides (107a, 107b, 108a, 108b) through which elements to be coated are conveyed. There is an entrance (105) at one end of the passage and an exit (106) at the other end of the passage. The coating booth (101) comprises a conveyor line (102) for supporting said elements to be coated and configured to convey said elements from the entrance (105) to the exit (106) along a straight pathway, and, a suction system. The opposing sides of the channel are symmetrical about the pathway. Sets of spray guns (103a, 104a, 103b, 104b) for spraying coating powder at the elements are positioned symmetrically either side of the straight pathway. The suction system comprises vertical suction inlets (109a, 109b) mounted opposite one another on each opposing vertical side of the passage, the suction system being configured to provide equal amounts of suction through each of the opposing vertical suction inlets (109a, 109b).

The electrospray device comprises a sprayer comprising a sprayer body and nozzle, and a partition positioned vertically and coaxially with the sprayer. The sprayer body is provided with a swirl generator for generating a swirling air stream, and a power supply connected between the nozzle and the partition, to apply voltage to the nozzle and the partition. The electrospray device may be part of a fluidized bed apparatus comprising a product container, a lower plenum base, an air distribution plate resided therebetween. When the power supply applies voltage in opposite polarities to the nozzle and the partition, the fluidized bed apparatus is used for coating particles; and when the power supply applies voltage of the same, the fluidized bed apparatus is used for spray-drying a solution. The electrospray device uses an electromagnetic hydrodynamic method to improve the performance of the fluidized bed apparatus and optimize the process of product.