An electrical field is generated between an application device and an object to be coated. At least one corona electrode associated with the application device is connected to ground, and at least one counter electrode associated with the object is connected at least at intervals to a positive potential. A system for electrostatically coating objects having an application device coating material, and an electrical field device having a high-voltage source which generates an electrical field between the application device and an object to be coated. The field device comprises at least one corona electrode associated with the application device, and at least one counter electrode associated with the object, wherein, during the operation of the device, the at least one corona electrode is connected to ground, and the at least one counter electrode is connected at least at intervals to a positive potential.

A liquid tank for an electrostatic atomizer for liquids is provided, including a receiving space for a liquid and a delimiting wall delimiting the receiving space with respect to the surrounding area. The liquid tank further includes a self-closing valve connecting the liquid tank to the atomizer.

The invention related to a device (1) for spraying charged droplets of a liquid towards a target along a spraying direction, comprising: a reservoir (10) for storing the liquid (L), a first electrode (100) being arranged at an outlet (11) of said reservoir (10), a second electrode (200) forming a counter electrode to the first electrode (100) for accelerating said droplets (D) along the spraying direction (S), and a housing (30) holding the reservoir (10) as well as said electrodes (100, 200).

A surgical spray instrument is disclosed comprising a main body connectable to a transfer tube; a propellant actuator for selectively releasing propellant from the main body and along the transfer tube and out through a distal end thereof. An ion emitter is arranged along the tube, the ion emitter having an ion emission zone. This enables the directed and concentrated delivery of therapeutic, pharmacological and diagnostic agents to tissues inside or outside of the body. There is further disclosed a surgical assembly for enabling uniform deposition of a particulate material to a surface of an intracorporeal cavity of a patient. The surgical assembly comprises an ion emitter; a dispenser having an outlet locatable within the cavity and for dispensing the particulate material therefrom, and a processor for determining a location of the ion emission zone of the ion emitter in dependence upon the position of the outlet of the distributor within the cavity to provide for the uniform deposition.

An electrodischarge apparatus has a nozzle that includes a discharge chamber that has an inlet for receiving a liquid and an outlet. The apparatus has a first electrode extending into the discharge chamber that is electrically connected to one or more high-voltage capacitors. A second electrode is proximate to the first electrode to define a gap between the first and second electrodes. A switch causes the one or more capacitors to discharge across the gap between the electrodes to create a plasma bubble which expands to form a shockwave that escapes from the nozzle ahead of the plasma bubble.

The present inventions relate to the formation of a thin polymer film on a substrate. Apparatus is described for transforming a solid polymer resist into an aerosol of small particles, electrostatically charging and depositing the particles onto a substrate, and flowing the particles into a continuous layer. Apparatus is further described for transforming solid resist into an aerosol of small particles by heating the resist to form a low viscosity liquid such as is compatible with nebulization and applying the techniques of jet or impact nebulization and aerosol particle sizing to form the aerosol. A method is further described of using ionized gas to confer charge onto the aerosol particles and using a progression of charging devices establish an electric field directing the flow of charged particles to the substrate. The progression of charging devices and associated apparatus results in high collection efficiency for the aerosol particles.

A system capable of depositing a matrix film containing a low amount of impurities (e.g. neutral particles) is provided. The system includes: a first plate electrode 120 having an attachment surface on which a sample plate P is to be attached; a second plate electrode 130 arranged so as to face the attachment surface; a nozzle 110 for spraying a liquid containing a matrix substance into the space between the two electrodes 120 and 130 by an electrospray method, the nozzle 110 arranged so that none of the electrodes 120 and 130 lies on the central axis A of a spray flow of the liquid; and an electric field creator 140 for creating, between the two electrodes 120 and 130, an electric field for forcing electrically charged droplets contained in the spray flow of the liquid containing the matrix substance to move toward the attachment surface.

A portable, hand-held electrospinning or electrospraying device and system, method, and portions thereof are described. Such device can be for electrospinning or electrospraying a predetermined solution toward a deposit surface. The device can have a durable portion, a semi-durable portion, and a consumable portion. The consumable portion can be received and held by the semi-durable portion, and the semi-durable portion holding the consumable portion can be removably coupled to the durable portion.

An electrostatic powdering robot for a powder booth, the robot including a projector for performing electrostatic powder coating. In order to reduce the time required for powder removal from the booth and facilitate automation of powder removal, the robot further includes a robotic arm, which is articulated and which carries the projector for positioning the projector, as well as a blower, for blowing a powder removal fluid, preferably air, the robotic arm carrying the blower to position the blower inside the booth, so that the blower blows the powder removal fluid onto a surface to be de-powdered inside the electrostatic powdering booth and thereby removes the residual powder coating the surface to be de-powdered.

Provided is a thermal spraying apparatus that forms a film on a target by thermally spraying a conductive powder by plasma, the thermal spraying apparatus including: a first electrode provided with a first cavity through which the conductive powder from a powder supplier passes; and a second electrode provided with a second cavity through which the conductive powder from the first electrode passes, in which the plasma is generated between the first electrode and the second electrode.