Abstract:
An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.
Abstract:
An apparatus and method for producing a screen is provided. The method includes propelling a quantity of paint comprising metallic flakes, such as aluminum flakes, toward the screen. The method also includes applying at least one magnetic field in a vicinity of the screen, wherein applying the at least one magnetic field causes at least one metallic flake in the quantity of paint to be oriented relative to the screen in a substantially preferred orientation, thereby producing a screen exhibiting beneficial projection qualities, such as brightness. The magnetic field(s) applied may be unsymmetric in the time domain of, for example, an AC component of the magnetic field.
Abstract:
An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.
Abstract:
A device for applying bronze or similar powder, particularly in a cigarette making machine, uses a corona discharge wire (36) or similar conductor maintained at high voltage to establish an electrostatic field which causes powder to be attracted to prepared adhesive patches on a paper web (14). Excess powder carried by the web is removed with the assistance of vibration, which may be produced by passing the web over an ultrasound device (44) or a pulsed air mover (102). Excess powder may also be removed by an air mover (152) directing a stream of air at the surface of the web carrying the powder.
Abstract:
Foodstuffs flavoring apparatus comprises an inlet, a screw conveyor arranged to convey flavoring from the inlet to a rotor disposed in a cylindrical chamber parallel to the axis of the screw conveyor, the rotor including one or more blades extending towards the wall of the chamber. The chamber also includes one or more apertures through which powdered flavoring carried to the chamber from the inlet by rotation of the screw conveyor is ejected in use of the apparatus. An electrostatic charging head located adjacent the outlet ensures adhesion of the flavoring to the foodstuff.
Abstract:
PROBLEM TO BE SOLVED: To provide a powder feeding device capable of equally dispersing and feeding powder while suppressing destruction of particles constituting the powder, and an electrode manufacturing apparatus comprising the powder feeding device.SOLUTION: A powder feeding device 2 comprises: a case 6 in which a storage part 6a is formed for temporarily storing powder 10 and which includes a feeding port 6b formed on an upper end of the storage part 6a and a rectangular discharging port 6c formed on a lower end of the storage part 6a; a rotor 7 which is disposed within the case 6 and rotated to transfer the powder 10 in the storage part 6a to the discharging port 6c; and a mesh body 8 through which the powder 10 transferred to the discharging port 6c is passed. The powder feeding device 2 is configured to feed the powder 10 while dropping it from the discharging port 6c onto a top face of an electrode foil 5 which is horizontally displaced perpendicularly below the discharging port 6c. The rotor 7 has a brush shape including a plurality of bristle members 7b, 7b, ... substantially radially planted towards the outside in a radial direction around an axial center G of the rotor 7.
Abstract:
PROBLEM TO BE SOLVED: To provide a powder coating apparatus capable of improving the rate of adhesion of a powder coating material to a material to be coated and improving the final utilization rate of the powder coating material.SOLUTION: A powder coating apparatus includes: a rotary stage for holding and rotating an inner peripheral surface of a metal cylinder body; a first booth for covering a part of the metal cylinder body held by the rotary stage; a second booth for housing the first booth; a powder coating material introduction nozzle which is provided with an inlet of a powder coating material and a plurality of discharge ports of the powder coating material, in which the inlet is positioned on the outer side of the second booth and the plurality of discharge ports are freely changed of their positions inside the first booth to face the surface part of the metal cylinder body; a blow device including piping capable of injecting an air flow into the first booth; and a dust collecting device including a hose for sucking the powder coating material accumulated in the inside in the second booth.