Abstract:
An aerosol including an active material powder, a binder, and a gas is prepared. An electric field is formed between a substrate and a porous electrode. The aerosol is electrically charged. The aerosol after the electrically charging is introduced into the electric field. The aerosol passes through the porous electrode and thereby the aerosol is introduced into the electric field. At the time of the aerosol passing through the porous electrode, the aerosol comes into contact with the porous electrode and thereby the aerosol is electrically charged. In the electric field, the aerosol after the electrically charging flies toward the substrate due to electrostatic force. The aerosol adheres to a surface of the substrate and thereby an active material layer is formed.
Abstract:
An exemplary embodiment of the present invention provides an electrostatic metal porous body forming apparatus including: a transfer module transferring a porous body substrate; and a coating module coating a metal powder on the porous body substrate, wherein the transfer module includes a substrate supporter fixing the porous body substrate while the porous body substrate is transferred, and wherein the coating module includes: an electrifier including a first electrode electrifying the metal powder, a second electrode facing the first electrode, a first power supplier connected with the first electrode supplying electricity to the first electrode, and a second power supplier connected with the second electrode supplying electricity electrified with an opposite charge to a charge caused by the electrification of the first electrode to the second electrode, and generating a pulse type of voltage; and a metal powder supplier including a metal powder vessel storing the metal powder therein and supplying the metal powder to the outside, and an outlet separately disposed above or below the porous body substrate injecting the metal powder, and transferring or injecting the metal powder that is electrified and coated by the electrifier.
Abstract:
Apparatus for coating a heated pipe section with a fusible powder includes a booth enclosing a powder application volume, at least one powder dispensing device for dispensing powder supplied to the device in the direction of the heated pipe section as the heated pipe section passes through the volume, and a filter mechanism coupled to the booth for extracting from the booth a stream of air entraining fusible powder that does not stick to the heated pipe section and extracting the fusible powder that does not stick to the heated pipe section from the volume. The apparatus further includes an opening between the volume and the filter mechanism. The opening permits the mixing of cooler air into the stream of air entraining fusible powder that does not stick to the heated pipe section before the stream of air entraining fusible powder that does not stick to the heated pipe section reaches the filter mechanism.
Abstract:
Methods and apparatus provide for spray drying a liquid product into a dried powder without applying heat, including: forming a slurry including a liquid solvent, a carrier, and an active ingredient; applying an electrostatic charge to the slurry; atomizing the charged slurry to produce a plurality of electrostatically charged, wet particles; suspending the electrostatically charged, wet particles for a sufficient time to permit repulsive forces induced by the electrostatic charge on at least some wet particles to cause at least some of such particles to divide into wet sub-particles; and continuing the suspending step, without the presence of any heated drying fluids, for a sufficient time to drive off a sufficient amount of the liquid solvent within most of the wet particles to leave a plurality of dried particles (the powder), each dried particle containing the active ingredient encapsulated within the carrier.
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:
Workpieces, which are conveyed by a conveying device along a conveying path, are heated by a heating and degreasing coil. Then, resin powder is downwardly sprayed from a nozzle of a coating device to each corresponding one of the workpieces, which are conveyed by the conveying device. The workpieces are thereafter heated by a heating and curing coil. At each of the heating coils, a dummy member, which is made of an electrically conductive material, is displaced from a retracted position to a forward position, which is located between the corresponding heating coil and a corresponding adjacent part of the conveying path of the conveying device, when an empty one of mount locations of the conveying device reaches the forward position of the dummy member.
Abstract:
The present invention provides a method and apparatus for dry coating solid dosage forms. The method includes the steps of placing solid dosage forms in a rotatable, electrically grounded housing, and spraying a film forming polymer powder composition into the housing during rotation thereof to form a polymer coating on the solid dosage forms, the polymer powder composition being sprayed using an electrostatic spray gun, and curing the coated solid dosage forms.
Abstract:
An apparatus for applying electrostatic powders on manufactured articles, comprising at least one dispensing device adapted to dispense gas solid particles mixture having an electrostatic charge, and connected to at least one duct arranged proximate to the surface to be treated and defining a channel for conveying the mixture. The duct has laterally, along its longitudinal extension, at least one passage opening directed toward the surface to be treated. A partition is arranged with at least one of its portions substantially at the passage opening and is permeable to the powder particles. The passage opening and the partition are crossed by force lines of a first electrical field adapted to cause transfer of the powder particles transiting along the conveyance channel on the surface to be treated through the passage opening and the partition.
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 functional mammalian growth factor receptor/yeast histidine kinase chimera in Saccharomyces cerevisiae. In a preferred embodiment, the extracellular domain of the human epidermal growth factor receptor has been fused to the intracellular kinase domain of the SLN1 gene. The SLN1 gene encodes the plasma membrane sensor kinase of the yeast high osmolarity/glycerol response MAP kinase pathway. The chimeric protein is almost completely nonfunctional because the EGFR ECD is not capable of dimerization in the absence of ligand. In the presence of ligand, however, the chimeric kinase is activated and phosphorylation through the pathway is quantitatively repressed. This measure of pathway activity can be utilized to identify agonists and antagonists of the EGFR and other tyrosine kinase growth factor receptors in yeast cells.