A system for spraying hot-melt adhesive onto glued surfaces comprising a melter to heat hot-melt adhesive, an air compressor, a power and control system and a gun. The gun is connected to the melter by a pipe with screw connectors, through which a hot-melt adhesive being heated flows, and the air compressor by an air pipe with screw connectors through which a pressurized compressed air flows. The gun has a nozzle with a hot-melt adhesive outlet or orifice and a compressed air outlet. The pipe 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 are fitted in an insulating layer of a hose.

A cold spray deposition apparatus includes a powder injection line, a gas injection port that supplies a gas to a chamber, a cooling input port, a cooling output port, and a cooling channel wrapped around the powder injection line in the chamber, the cooling channel fluidly coupled to the cooling input port and the cooling output port.

Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes a low temperatures that do not deform the device. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.

An apparatus and method for treating a surface with a jet comprising a multiplicity of particles, the apparatus including at least one nozzle unit, which is designed for providing a stream of propellant gas mixed with a multiplicity of particles, and an enclosure of the nozzle unit, the enclosure being arranged at such a distance from the nozzle unit that a gap is formed between the nozzle unit and the enclosure.

A device for coating cylinder walls of an internal combustion engine forming a plurality of cylinders. A coating device is provided for each cylinder, the coating devices are controlled in such a way that the cylinder walls of all the cylinders are coated simultaneously.

A gas atomization nozzle includes a through-hole formed along a center line; a nozzle portion configured of a Laval nozzle which is disposed around the center line and provided to be inclined at a predetermined angle toward the center line; and swirling motion imparting means for imparting a swirling flow around the center line to gas which is injected from the nozzle portion. The nozzle portion is formed in a ring shape which is continuous around the center line, and the swirling motion imparting means is configured as a fin provided in the nozzle portion to impart a swirling flow.

A spraying apparatus includes a spraying apparatus main body, a liquid introduction portion, a gas-liquid spout portion, a gas introduction portion, a liquid inlet, a first gas inlet passage, a second gas inlet passage, and a spout. The first gas inlet passage is provided at at least one place of the annular gas introduction portion so as to communicate with the gas flow passage and the gas-liquid mixer, and allows a gas flow flowing through the gas flow passage to enter the gas-liquid mixer. The second gas inlet passage has a gas inlet having a predetermined area ratio, is provided on a downstream side of the first gas inlet passage of the gas introduction portion, and communicates with the gas flow passage and the gas-liquid mixer.

A retaining system for a solenoid assembly of a liquid adhesive dispensing system includes a quick-release mechanism configured to secure the solenoid assembly in place. The quick-release mechanism engages an air tube of the solenoid and thereby secures the entire solenoid assembly to a manifold. The quick-release mechanism can release the solenoid, facilitating easy removal of the entire solenoid assembly, by a simple turning, pushing, or pulling action on the quick-release mechanism. The released solenoid can then be removed and replaced, thereby minimizing downtime caused due to the replacement of a faulty solenoid.

An embodiment includes a coating apparatus comprising: a support unit for supporting a coating object; and a spray assembly for spraying a fluid which includes a coating material to be coated by the coating object supported on the support unit. The spray assembly comprises: a nozzle unit where the fluid is sprayed; and a fluid supply unit for supplying the fluid to the nozzle unit. The nozzle unit comprises: a body including a passageway for the fluid therein and a dielectric unit provided with a dielectric material; and a plasma source for generating plasma from the fluid which flows to an area adjacent to inner lateral surface of the dielectric unit. The plasma source comprises: a power electrode applying a power; and a ground electrode to be grounded.

A retaining system for a solenoid assembly of a liquid adhesive dispensing system includes a quick-release mechanism configured to secure the solenoid assembly in place. The quick-release mechanism engages an air tube of the solenoid and thereby secures the entire solenoid assembly to a manifold. The quick-release mechanism can release the solenoid, facilitating easy removal of the entire solenoid assembly, by a simple turning, pushing, or pulling action on the quick-release mechanism. The released solenoid can then be removed and replaced, thereby minimizing downtime caused due to the replacement of a faulty solenoid.