Abstract:
A product comprising a mat of fibers prepared by electrostatically spinning an organic material and collecting the spun fibers on a suitable receiver.
Abstract:
An improved electrostatic spray charging device for spray guns is disclosed. The device comprises an adapter formed from a dielectric material in the shape of a generally cylindrical tube adapted at one end to be secured to the end of a conventional spray gun and constructed at the second end to provide an inductive charging field for materials discharged by the spray gun. The second end of the adapter is formed, in the preferred embodiment, into two diametrically opposed lobes, each of which carries on its interior surface at least one charging plate to which a d.c. voltage on the order of 10-20 KV is applied. The exterior surface of each lobe carries an electrically grounded electrode which preferably is annular in shape to provide an electric field configuration that prevents accumulation of charged spray particles on the exterior surfaces of the adapter.
Abstract:
An electrostatic oiling system for use with single blanks in batch systems having an open spray chamber without the need for a negative vacuum chamber. Further, the provided electrostatic oiling system may utilize induction beams and a charge wall that allows for utilization of a smaller vacuum system. Further, the provided electrostatic oiling system may provide variable blank coverage without the need for metered pumps.
Abstract:
A system and method for shaping and/or directing a spray stream includes electrostatically charging a spray stream by exposing fluid to be sprayed to an electrical field within a fluid sprayer to create an electrostatically charged spray stream, and then creating an electrical field between secondary electrodes externally to the fluid sprayer such that the electrostatically spray stream is shaped and/or redirected as it passes through the electrical field.
Abstract:
A shaping air ring (10) is configured of a body (11), a cover (13) and a nozzle (15). A tapered conical protrusion (17) is provided in a front end of the nozzle (15) to abut on the cover (13) in contact therewith without a clearance therebetween. Numerous inclined recessed grooves (20) are provided on a forward tapered surfaces (17C) of the conical protrusion (17) over the entire periphery. Further, a first shaping air ejecting hole (23) is formed between each of the inclined recessed grooves (20) and an inner peripheral surface (13B2) of the cover (13) to eject shaping air toward a releasing edge (9E) of a rotary atomizing head (9). Second shaping air ejecting holes (24) are provided on an inner peripheral surface (16A) of the nozzle (15) to eject shaping air along an outer peripheral surface (9C) of the rotary atomizing head (9).
Abstract:
An air assisted electrostatic liquid spray nozzle assembly having a relatively long elongated nozzle body with a spray tip and surrounding air cap disposed at a downstream end of the nozzle body. The spray nozzle assembly includes an upstream electrode for connection to a high voltage electric source, an elongated feed tube, an electrically enhancing stinger, and the spray tip which are secured and retained by the air cap in electrically conductive relation to each other such that liquid passing through liquid passages of the electrode, feed tube, stinger, and spray tip is discharged in an electrostatically charged pattern of liquid particles. The air cap is removable to permit easy removal and replacement of the spray tip, stinger, and liquid feed tube.
Abstract:
Femtoliter to milliliter volumes of one or a plurality of different liquids are accurately transported, dispensed and/or treated where the fluids are energized purely electrokinetically or in a hybrid mode where auxiliary coordinated energy sources including but not limited to pneumatic, piezoelectric; peristaltic; ultrasonic; thermal; gravitational, acoustic are employed concurrently or sequentially to transport liquids for various purposes from diverse devices to targets of all types being made of a conductive, non-conductive or semiconductive materials. Liquids in nested Gaussian surfaces or common liquid handling devices (e.g., syringes, pipettes, pumps) or more complicated devices (Nanoscreen's syringes or Roche's polypipetter) can be energized by use of one source of energy and also by electric induction or conduction of lumen or targets or both and are optionally concurrently or sequentially combined with non electrical energy to effect highly accurate volumetric and spatial liquid transport with active or passive flight direction yielding non touch or touch liquid sample placement, parallel dispensing, with or without filtration, SPE, LC, or other treatment technologies and for scientific instrument introduction for IBF, MALD, DESI, DART and other sample introduction and for drug delivery, diagnostics, manufacturing of products, product tagging, sample preparation or related applications.
Abstract:
An electrostatic painting apparatus (1) includes: a paint gun (4) that has a bell cup (4a) serving as an atomization portion that atomizes a paint, and an air nozzle (7) serving as an air discharge portion that discharges shaping air for controlling a diffusion pattern of the atomized paint; a high-voltage generator (5) that applies a high voltage to the paint gun (4); and a controller (6) that controls the high voltage to be applied from the high-voltage generator (5), wherein the high-voltage generator (5) generates a high positive voltage.
Abstract:
Embodiments of the invention relate to a nozzle assembly for electrostatic deposition comprising a single point nozzle, the single point nozzle being conically shaped and including an apex and a circular base, the circular base including a smaller diameter cylindrical protrusion including a counter bore which connects to a passage leading to the apex; and a nozzle body, in contact with the single point nozzle and including a first through bore, a larger second through bore and a cross drilled port into the first through bore; and a cylindrical electrode, at least partially inserted within the first through bore of the nozzle body and in contact with the counter bore of the single point nozzle, the electrode including a bore mating aligned with the cross drilled port of the nozzle body, and inlets positioned at either end.
Abstract:
A coating device comprises at least one application apparatus to discharge a coating agent from at least one coating agent nozzle. The application apparatus is configured to apply an oscillation to at least one of the coating agent and at least one coating agent jet such that at least one of the coating agent and the at least one coating agent jet break up into droplets.