This coating system (2) for coating a workpiece (W1) with a liquid coating product, includes an ultrasonic spray head (14) for generating droplets of coating products, an electrode (32A) for generating an electrostatic field (E) between the electrode and the ultrasonic spray head (14) and a high-voltage generator (52) connected to the electrode for supplying the electrode with high voltage. The shape of the electrode (32A) is advantageously configurable on the basis of the geometry of the workpiece (W1).

A system and a method for generating a respirable dry powder aerosol from a liquid solution or liquid suspension at a respirable dry powder aerosol volume flow. A liquid aerosol generating nozzle generates from the liquid solution or liquid suspension a liquid aerosol that is diluted by dilution gas and dried in a cylindrical evaporation chamber to generate a dry powder aerosol. The system and method include heliox as a gas, specifically dilution gas, for enhancing the drying process in the cylindrical evaporation chamber, but also as a nozzle gas for enhancing generating the liquid aerosol from the liquid solution or liquid suspension.

A nozzle assembly for cooling a treatment area with a fluid comprises a first fluid outlet and a second fluid outlet operable individually as well as simultaneously and arranged apart such that the fluid covers a first portion of the treatment area if only the first fluid outlet is operated, a second portion of the treatment area if only the second fluid outlet is operated (wherein the second portion is not fully contained in the first portion), and a third portion of the treatment area if both the first fluid outlet and the second fluid outlet are operated (wherein the third portion is not fully contained in the first portion and/or the second portion).

A liquid dispensing device includes a body, a nozzle on an end of the body, a liquid container coupled to the body, and a piston configured to move in the body so as to control an ejection of liquid from the nozzle. The piston and the nozzle are configured to be detached from the body as an assembly.

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.

Systems, apparatuses, and methods for reducing humidity of air adjacent to a nozzle of an electrospinning apparatus, charged solution output by the nozzle, a solution path between the nozzle and a deposit surface, and/or the deposit surface. The apparatus can be configured to controllably output the charged solution and gas of a predetermined dryness for deposit of the charged solution on the deposit surface. The gas of the predetermined dryness can be provided adjacent to a nozzle tip of the nozzle from where the charged solution is output. The gas of the predetermined dryness may be output in a predetermined direction toward a focal point at, in front of, or behind the nozzle tip.

A system includes a gravity-feed spray coating device having a body with a liquid inlet, a handle coupled to the body, a spray head coupled to the body, a liquid passage extending from the liquid inlet to the spray head, and a gravity-feed container fastener disposed adjacent the liquid inlet. The gravity-feed container fastener includes a non-compression container fastening mechanism. The system also includes a first gravity-feed liquid supply container having a liquid outlet and a compression fitting adapter, wherein the compression fitting adapter compression fits the liquid outlet to the liquid inlet without the non-compression container fastening mechanism.

Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build. Applicant further discloses multiple spray gun systems for applying such a two-part polymer mix to aircraft parts.

The invention relates to an articulated and extendible rotary head for a pressurised air jet spray gun, formed by rotary modules that are articulated, combined and stacked such that they can be bent for use on corners or edges. The first module is a supporting clamp module in the form of a quadrilateral with curved sides attached using swivel screws to the body of the gun or to another rear or front clamp module, through which extend a bellows that channels the liquid to be sprayed, two air supply hoses and the needle obstructing the paint opening, all terminating in a front-end second module in the form of a hollow truncated cylinder with a central outlet for spray liquid, blocked by a shut-off needle tip that can be extracted by pulling a trigger in order to release the spray jet, with the needle divided into two parts connected by a flexible, high-tenacity traction wire and a recovery spring.

A contact nozzle for simultaneously coating a plurality of elastic strands moving in a machine direction with an adhesive is described. The contact nozzle includes a single fluid inlet for receiving the adhesive from a fluid module, a first inverted V-shaped notch, a second inverted V-shaped notch, a third inverted V-shaped notch, and a mounting surface configured to abut the fluid module when the contact nozzle is coupled to the fluid module. Each inverted V-shaped notch extends along the contact nozzle in the machine direction, has an open bottom end, a circular closed top end. Each inverted V-shaped notch includes an adhesive orifice in fluid communication with the single fluid inlet for receiving the adhesive for directing the adhesive into contact with an upper surface of an elastic strand.