A system (1, 101, 201) for spraying hot-melt adhesive onto glued surfaces comprising a melter (61) to heat hot-melt adhesive, an air compressor (60), a power and control system (63) and a gun (10). The gun (10) is connected to the melter (61) by a pipe (53) with screw connectors (54, 55), through which a hot-melt adhesive being heated flows, and the air compressor (60) by an air pipe (56) with screw connectors (57, 58) through which a pressurized compressed air flows. The gun (10) has a nozzle (20) with a hot-melt adhesive outlet or orifice (21) and a compressed air outlet (23). The pipe (53) through which flows the hot-melt adhesive having a viscosity between 2500 mPa.Math.s and 7000 mPa.Math.s and a temperature between 120° C. and 200° C., and a density between 0.8 kg/dcm.sup.3 and 1.4 kg/dcm.sup.3, and the air pipe (56) are fitted in an insulating layer of a hose (50), and wherein the throughput of the pipe (53) through which the hot-melt adhesive being heated flows is between 0.5 kg/h and 1.5 kg/h, while the air pipe (56) has a throughput between 0.1 m.sup.3/min and 0.6 m.sup.3/min.

A pharmaceutical drug delivery device. The drug delivery device includes a device body, a fluid outlet nose cone attached to the drug delivery device body, and a fluid jet ejection cartridge containing a liquid pharmaceutical drug is disposed in the drug delivery device body. A fluid ejection head is attached to the fluid jet ejection cartridge and the fluid ejection head is in fluid flow communication with the fluid outlet nose cone. The fluid outlet nose cone has a plurality of air flow channels open to an ambient atmosphere for providing a pressure differential between an inner area of the fluid outlet nose cone adjacent to the fluid ejection head and the ambient atmosphere.

A battery module according to an embodiment of the present disclosure includes a battery cell stack containing a plurality of battery cells stacked along one direction, and a module frame for housing the battery cell stack. The battery cells adjacent to each other in the battery cell stack are coupled together by a first adhesive member including a cured spray-type adhesive is cured. The first adhesive member follows at least one fluctuating pattern that extends along a direction different from the direction along which the plurality of battery cells are stacked.

A spray device comprises a diaphragm pump, a spray gun and a hose. The diaphragm pump comprises an air outlet to supply air flow, a casing and a pump assembly disposed in the casing. The spray gun comprises a housing and a Venturi tube arranged entirely inside the housing. The housing has an air inlet to receive the air flow supplied from the diaphragm pump and guide the air flow into the Venturi tube. The spray gun comprises a paint receptacle that receives and holds therein a paint material that is supplied into the spray gun and atomized to form paint droplets and entrain the air flow received from the diaphragm pump to allow the paint droplets to be sprayed onto a workpiece. The hose has two ends respectively coupled to the air outlet of the diaphragm pump and the air inlet of the spray gun.

A nozzle arrangement for applying fluids to a substrate has a connection body that is connectable to a distributor mounting region and has a spray nozzle that is connectable to the connection body. The spray nozzle has a nozzle body that longitudinally extends and has a first fluid channel for the fluid to be applied to the substrate. The spray nozzle has a nozzle housing in which the nozzle body is received. Second fluid channels for shaping air are formed between a lateral surface and inner of the nozzle body. The second fluid channels extend in the direction of a nozzle outlet opening of the nozzle body such that, by way of the shaping air dispensed from the second fluid channels at the nozzle outlet region, a spiral-shaped deflection of the fluid dispensed from the nozzle outlet opening of the nozzle body is created.

A spraying nozzle, intended for spraying a product, defines a passage for the circulation of the product through the nozzle, wherein the passage opens through a wide connection orifice to the outside of the nozzle at an upstream end thereof, and through a narrow spraying orifice at a downstream end of the nozzle in order to spray the product; the passage has, between the connection orifice and the spraying orifice, at least one pre-atomization narrowing capable of atomizing the product, followed by a broadening downstream of the pre-atomization narrowing.

An apparatus for performing liquid treatment for a substrate is provided. The apparatus for performing the liquid treatment for the substrate may include a housing having a treatment space, a substrate support unit to support and rotate the substrate in the treatment space, a liquid feeding unit including a nozzle device including a central exhaust port and multiple first outer exhaust ports, which are provided in a shape of a ring to form a concentric circle with the central exhaust port to feed mutually different treating liquids onto the substrate through respective exhaust ports, and a controller to control the liquid feeding unit.

A spray gun nozzle may include a main body, and a spray hole is formed at a front end thereof. A tapered cylindrical guiding surface having gradually wider diameter from rear to front is extended forwardly from the spray hole, and the inclined angle of the guiding surface with respect to the spray hole is between 45 degrees and 75 degrees. A plurality of air grooves having U-shaped cross-section are formed on the outer periphery of the front end of the main body axially extending from a front end of the guiding surface, and the air grooves are spaced apart with the same interval. With the air grooves on the front end of the main body having the fixed groove diameter, the flow rate of the high-pressure airflow passing through the air groove is consistent.

Provided is a visual insulating spray lance for live working. A liquid guide tube and an air tube in a hollow operating rod are communicated with an inlet end of a spray nozzle; the operating rod is connected to a connecting rod and a display respectively through a fastener; a video optical transceiver fixedly arranged on the connecting rod is connected to the display through an optical fiber; the optical fiber is connected to an optical receiver, the optical receiver is connected to a chip for a video signal processor, the chip for a video signal processor is connected to a power divider having two output interfaces respectively connected to a display screen and a 4G communication module; a battery is connected to the optical receiver, the chip for a video signal processor, the power divider, the display screen, the 4G communication module, and a global positioning system (GPS) module.

A liquid slurry spraying system for spraying highly viscous slurries, including those with solids content, while maintaining the slurry in agitated condition for optimum discharge. The spraying system includes a nozzle body with a liquid flow passage having a liquid slurry inlet adjacent an upstream end and a spray tip at a downstream end, a valve needle supported in the liquid flow passage for reciprocating movement between spray tip closing and opening positions, and a bladed rotor having a plurality of vanes rotatably supported on the valve needle for rotation as an incident to the direction of liquid slurry from said liquid inlet when the valve needle is in an open position for agitating the liquid slurry for direction to the spray tip.