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ELECTRIC CHARGING OF OBJECTS OR MATERIALS

Subclass of:

361 - Electricity: electrical systems and devices

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
361225000ELECTRIC CHARGING OF OBJECTS OR MATERIALS32
20090109594ELECTROSTATICALLY ATOMIZING DEVICE - An electrostatically atomizing device comprises an emitter electrode, an opposed electrode disposed in an opposed relation to the emitter electrode, cooling means for condensing water on the emitter electrode from within a surrounding air, and a high voltage source for applying high voltage between the emitter electrode and the opposed electrode; and high voltage is applied to the condensed water, which becomes electrostatically charged thereby, so that minute water particles are discharged from a discharge end at a tip of the emitter electrode. The device comprises a controller for causing the charged minute water particles to be discharged stably. The controller has an initial control mode and a normal control mode. In the initial mode, the cooling means is controlled so as to cool the emitter electrode at a predetermined cooling rate. Once discharge current flowing from the emitter electrode to the opposed electrode reaches into a predetermined target discharge current range, the cooling means is controlled by feedback control, on the basis of the value of the discharge current, in such a manner that the discharge current is kept within the target discharge current range.04-30-2009
20090135539ELECTROSTATICALLY ATOMIZING DEVICE - The electrostatically atomizing device in this invention comprises an emitter electrode, a water supply means, a high voltage source, and an atomization detecting means and further comprises a controller. The water supply means is configured to supply water to the emitter electrode. The high voltage source is configured to apply a high voltage to the emitter electrode so as to electrostatically atomize the water on the emitter electrode. The atomization detecting means is configured to detect a condition where the water is electrostatically atomized from the emitter electrode. The controller is configured to apply a starting voltage upon energization of the device. The controller is configured to apply an operating voltage upon recognition of the condition. The starting voltage is configured to be higher than the operating voltage. With this configuration, it is possible to obtain the electrostatically atomizing device which is configured to generate a mist of charged minute water particles immediately upon energization of the electrostatically atomizing device. It is possible to obtain the electrostatically atomizing device which is configured to generate the mist of the charged minute water particles stably upon recognition of the condition.05-28-2009
20090296305METHOD AND APPARATUS FOR CHARGING OR NEUTRALIZING AN OBJECT USING A CHARGED PIECE OF CONDUCTIVE PLASTIC - A method of charging insulative material includes applying a high voltage to a conductive plastic having a uniform resistance throughout. Insulative material is placed in proximity to, or in contact with, the conductive plastic, thereby charging the insulative material. Further, a device for placing charge on an object proximate to the device includes a conductive plastic having a uniform resistance throughout. A high voltage power supply has an output coupled to the conductive plastic.12-03-2009
20100053840 METHOD TO CHARGE TONER FOR ELECTROPHOTOGRAPHY USING CARBON NANOTUBES OR OTHER NANOSTRUCTURES - In accordance with the invention, there are systems and methods to impart an electrostatic charge to particles. An exemplary method can include providing a plurality of particles to be charged and providing a plurality of nanostructures disposed over a first electrode array, the first electrode array including a plurality of electrodes spaced apart. The method can also include providing a multi-phase voltage source operatively coupled to the first electrode array and applying a multi-phase voltage to the first electrode array to create a traveling electric field between each electrode of the first electrode array, thereby causing electron emission from the plurality of nanostructures and forming a plurality of charged particles. The method can further include transporting each of the plurality of charged particles using the traveling electric field onto a surface.03-04-2010
20100067164ELECTRICAL IONIZER AND METHODS OF MAKING AND USING - A fluid cooled electrical ionizer assembly includes a stack of honeycomb sheet-like structures of dielectric material with an electrode between each pair of honeycomb sheet-like structures. Alternate electrodes are electrically coupled together to each other and may be coupled to respective terminals of an electrical circuit. Fluid passages in the honeycomb sheet-like structures provide a place for fluid to affect electrical characteristics of the ionizer assembly and/or to provide for cooling. A method of assembling an ionizer assembly includes placing ionizer subunits including a dielectric honeycomb sheet-like structure and an electrode in parallel planar, overlying relation with the honeycomb. A method of cooling an ionizer assembly of dielectric honeycomb structure and electrodes includes directing a fluid through flow channels in the honeycomb structure.03-18-2010
20100085678EPR Pair Generation - The present invention relates to the formation of electron spin EPR pairs and manipulation of such entangled electrons. The invention comprises a static quantum dot located part way along a quantum wire with means for adjusting the confining potential of the quantum dot. The quantum wire may for instance be formed by gate electrode (04-08-2010
20100134946 LIGHTNING PROTECTION SYSTEM FOR WIND TURBINES - A system, method and software for protecting wind turbines from lightning strikes, as well as a wind turbine comprising the system for lightning protection, wherein at least one lightning strike protection element of said LSP system is ionized prior to a lightning strike, thus reducing the chance of damaging unprotected part(s) of the blade(s) of the wind turbine.06-03-2010
20100165537Water-level charged device model for electrostatic discharge test methods, and apparatus using same - A charged device model (CDM) electrostatic discharge (ESD) testing is carried out at wafer level. Wafer CDM pulses are repeatedly applied and monitored. The wafer CDM (WCDM) pulses are accomplished with a probe-mounted printed-circuit board and a high-frequency transformer that captures fast CDM pulses. Modeling of CDM and WCDM in the time and frequency domain illustrates the dominant effects, and shows that WCDM can reproduce all the major phenomena of package-level CDM testing.07-01-2010
20110013336Polarized lightning arrestors - Systems and methods for dynamically defending a site from lightning strikes are provided. The systems and methods involve dynamically altering electrostatic fields above the site and/or dynamically intervening in lightning discharges processes in the vicinity of the site.01-20-2011
20110019331POWER SUPPLY WITH ELECTROSTATIC COOLING FAN - A power supply having an electrostatic circuit producing sufficient ionic motion to move ambient air over heated surfaces. The electrostatic circuit creates a corona discharge from several emitter point sources producing sufficient ionic motion to move ambient air over a hot surface, such as a heatsink or heatfins, which surface is in communication with the power supply housing. A high DC voltage is generated within the power supply when the power supply is energized to create the ionic motion.01-27-2011
20110075316SYSTEM FOR RECOVERING AND USING THE ELECTROSTATIC CHARGE GENERATED BY LIGHTNING - A system for the recovery and use of the electrostatic charge present in the atmosphere during storms generated by lightning, transforming natural energy into electrical energy useful for consumption, and providing the necessary protection for lives and property against electro-atmospheric phenomena, has an ecological lightning conductor, an electrical conductor connected by one end to the low-frequency electrode of the lightning conductor, and an enhanced intelligent earth wire, whereto the conductor is joined by its other end. The conductor includes a series of probes and magnetic field detectors which will send information to the microprocessor and from there to the mainframe computer. The control device allows regulation of the earth resistance, thereby generating more or less charge, diverting the energy to the accumulators or to earth through dissipator electrodes.03-31-2011
20110090611Particle charger with sheath air flow for enhancing charging efficiency - A particle charger with sheath air flow for enhancing charging efficiency includes a housing and a discharge wire. The housing has a charging chamber for accommodating the discharge wire, a particle inlet, a sheath air inlet, an outlet and an accelerating channel. A clean sheath air is guided through the sheath air inlet into the charging chamber to surround charged particles, reducing deposition of charged particles on the inside wall of the housing. A relatively small annular gap of accelerating channel accelerates the charged particles to exit the particle charger, and therefore minimized the particle electrostatic loss due to depositing on the inner surface of the housing. Additionally, uncharged particles approach the discharge wire axially, and charged particles move away radially. It is helpful for the charged particles to diffuse rapidly and uniformly, thereby enhancing the charging efficiency.04-21-2011
20110141649METHOD FOR PRODUCING INSULATED ELECTRODES FOR APPLYING ELECTRIC FIELDS INTO CONDUCTIVE MATERIAL - The present disclosure relates to a method for producing an insulated electrode comprising a conductive material coated with an electrically insulating material. The method includes at least the following steps of: 06-16-2011
20110170225High Resolution Printing of Charge - Provided are methods of printing a pattern of charge on a substrate surface, such as by electrohydrodynamic (e-jet) printing. The methods relate to providing a nozzle containing a printable fluid, providing a substrate having a substrate surface and generating from the nozzle an ejected printable fluid containing net charge. The ejected printable fluid containing net charge is directed to the substrate surface, wherein the net charge does not substantially degrade and the net charge retained on the substrate surface. Also provided are functional devices made by any of the disclosed methods.07-14-2011
20110211292Electric Fence Energiser - A method of operating an electric fence energiser, including the steps of: storing energy in an energy storage element, and transferring energy from the energy storage element to an inductive element, the method characterised by the steps of using a rectifying element to prevent the transfer of energy from the inductive element into a load on the output of the energiser while the transfer of energy from the energy storage element to the inductive element occurs, and releasing the energy held by the inductive element once an energy threshold on the inductive element has been reached.09-01-2011
20110249372ELECTRIFYING ROLLER - Provided is an electrifying roller which may be used in a contact electrification method, which may be manufactured more easily, and which may better prevent problems caused by an electrically conductive material.10-13-2011
20120224292ELECTROSTATIC ROLLER APPARATUS AND A SYSTEM FOR ELECTROSTATICALLY SUPPORTING AN OBJECT - There is provided an electrostatic roller apparatus comprising a body including: a first body portion and a second body portion; the first body portion including an electrostatic generating sub-assembly; a roller applicator and a support structure, the support structure having a first end and a second end, the first end being configured to rotatably mount the roller applicator thereupon and the second end being configured to be coupled with the second body portion.09-06-2012
20120229947CHARGING APPARATUS - A charging apparatus that may be applied to a process of bonding a large-sized plate-shaped member as air bubbles is prevented from mixing. A charging apparatus includes a plurality of holding members (09-13-2012
20120287550VOLTAGE APPLICATION DEVICE, ROTATION APPARATUS AND VOLTAGE APPLICATION METHOD - A voltage application device of an embodiment applies a voltage between a first and second electrode disposed separately from each other in an airflow generation device, which is disposed on a rotation blade of a rotation apparatus, in which a rotation shaft of the rotation blade is held rotatably by a holding part. In the voltage application device of the embodiment, a voltage output unit outputs a voltage. Then, a sliding type transmission unit having electrodes disposed respectively on the rotation blade side and the holding part side of the rotation shaft transmits a voltage outputted from the voltage output unit from the holding part side to the rotation blade side. Then, a transformation unit disposed on the rotation blade side increases the voltage transmitted by the sliding type transmission unit and outputs the voltage to the airflow generation device.11-15-2012
20130021715SYSTEM AND METHOD FOR IN-SITU CONDITIONING OF EMITTER ELECTRODE WITH SILVER - Cleaning and/or conditioning electrode surfaces can provide significant performance and operational benefits in EHD devices. In particular, conditioning of emitter electrode surfaces with silver (Ag), silver compositions or silver preparations applied in situ at successive times throughout the operating lifetime of an EHD air mover has been found to significantly reduce ozone production. Structures and techniques are described for in situ conditioning electrode surfaces and, in particular, emitter electrode surfaces of an EHD device such as an air mover or precipitator, with a conditioning material that includes silver.01-24-2013
20130170090METHOD AND APPARATUS FOR ENHANCING FLAME RADIATION - An apparatus for enhancing flame radiation includes a flame charging system and an electrically isolated electrode. A time-varying voltage is applied to the flame charging system and the flame charging system imparts a corresponding time-varying charge or time-varying voltage onto the flame. The flame responds to the time-varying charge or voltage by increasing its luminosity.07-04-2013
20140321024LARGE-AREA CONTROLLED ELECTROSTATIC LEVITATION OF LIGHTWEIGHT SHOW OBJECTS - A system for electrostatically levitating an object with a body adapted for receiving a static charge. The system includes an array of at least three electrostatic generators, with each of the electrostatic generators including an exposed element that becomes statically charged during operation of the array. The system also includes a controller operating to generate control signals to the array to independently operate each of the electrostatic generators to provide the static charge at first, second, and third voltages. When positioned in a flight space above the array, the object is levitated above the array of the electrostatic generators by an electrostatic lifting force(s). Each of the electrostatic generators is a high voltage Van de Graaff generator. The first, second, and third voltages are in the range of 0 to 300,000 volts and are varied over time to direct the levitated object along a flight path by the controller.10-30-2014
361226000 Particulate matter (e.g., liquids with suspended particles) 9
20110090612ATMOSPHERE CLEANING DEVICE - Provided is an atmosphere cleaning device comprising a means for establishing a down-flow in the atmosphere, in which a treating object is positioned, a plurality of ionizers arranged at positions above the treating object and symmetrically in the layout, as viewed downward, across the treating object, for feeding either cation or anion transversely of the down-flow, and a means for applying such a DC voltage to the treating object as has the same polarity as that of the voltage being applied to those ionizers. The atmosphere cleaning device is characterized in that the symmetrically arranged ionizers are arranged to face each other.04-21-2011
20120281332Gas Insulated Bus and Particle Removal Method for Gas Insulated Bus - The present invention is provided to satisfy insulation and conductivity performance requirements, to reduce the size of a gas insulated bus, and also to make conditioning for a particle more reliable. In a gas insulated bus having a conductor supported in a cylindrical metal container via an insulator, insulating gas being contained in the metal container, the metal container has an expanded diameter part formed over a given range in an area of the metal container in which the insulator is positioned and a reduced diameter part formed over the entire area of the metal container except for the expanded diameter part. Thus, when the temperature of the insulator increases during conduction, heat from the insulator is transferred to the metal container via a large space in the expanded diameter part and released to the air through a large outer surface of the expanded diameter part of the metal container.11-08-2012
20130148252NON-RADIOACTIVE BIPOLAR CHARGER FOR AEROSOL PARTICLES - A bipolar charger includes a housing with a main chamber and positive and negative electrode chambers facing each other. The electrode chambers each have a ground electrode and a high voltage electrode that cooperate to create a cloud of ions. An aerosol flowing from an inlet passage through the main chamber and out an outlet passage mixes with the clouds of ions, thereby providing an aerosol with a steady-state electric charge distribution.06-13-2013
20140029154CONDENSATION-EVAPORATOR NANOPARTICLE CHARGER - A particle charging method and apparatus are provided. An ion source is applied to a particle laden flow. The flow is introduced into a container in a laminar manner. The container has at least a first section, a second section and a third section. The first section includes wetted walls at a first temperature. A second section adjacent to the first section has wetted walls at a second temperature T01-30-2014
20140111901System and Method for Charging Fluids - Devices, systems, and methods for charging fluids are disclosed. The charging of fluids improves the mixing of fluids in microfluidic systems. The charging is performed by producing an ion field (04-24-2014
361227000 For spray production 4
20140268476METHOD AND SYSTEM FOR SIGNIFICANTLY IMPROVING CHARGE PROBABILITIES OF NANOMETER AEROSOL PARTICLES - The various embodiments described herein significantly increase charge probabilities of nanoparticles by first growing them to larger droplets using a diethylene glycol-based preconditioner, neutralizing the droplets with a bipolar charger, and then removing the condensed liquid to recover the original aerosol particles. The small droplet size is an important element in reducing the amount of aerosol particles with more than one charge. The high single-charge particle probability significantly enhances the monodisperse aerosol throughput of a DMA, while the reduced multiple charge probabilities ensure high monodispersity of DMA-classified aerosols and good data quality of SMPS measurements.09-18-2014
361228000 Liquid type 3
20080259519Highly-Aqueous, Non-Respirable Aerosols Containing Biologically-Active Ingredients, Method of Making, and Device Therefor - A non-respirable aerosol, particularly a non-respirable aerosol comprising a biologically-effective amount of a biologically-active agent dissolved, emulsified, or suspended in a highly-aqueous liquid carrier vehicle. The highly-aqueous liquid carrier vehicle comprises about 60 wt % to about 100 wt % water, about 0 wt % to about 40 wt % of a co-solvent, about 0.05 wt % to about 10 wt % of an acceptable surfactant, and about 0 wt % to about 10 wt % of an excipient. The non-respirable aerosol is substantially monodisperse when dispensed from a sprayhead assembly comprising a preferably linear array of a plurality of nozzles and at least one counter electrode adapted to substantially equalize the charge fields of the plurality of nozzles.10-23-2008
20110007446ELECTROSTATIC COLLOID THRUSTER - An electrostatic colloid thruster for implementing a method of ionizing a liquid is disclosed herein. The electrostatic colloid thruster includes an electrically conductive extractor having a plurality of holes defined therethrough; an ultrasonic atomizer having an electrically conductive atomization surface at least partially facing the extractor and being arranged relative thereto so as to define a gap; a reservoir system in fluid communication with the atomization surface; and an electrical power source in electrical communication with both the extractor and the atomization surface. The apparatus and method are generally utile in various applications including, for example, spacecraft propulsion, paint spray techniques, semiconductor fabrication, biomedical processes, and the like.01-13-2011
20130155567DISCHARGE ELECTRODE, METHOD FOR MANUFACTURING DISCHARGE ELECTRODE, ION GENERATING APPARATUS, AND ELECTROSTATIC ATOMIZING APPARATUS - A discharge electrode includes a surface layer to which a surface treatment that enables solder bonding is applied.06-20-2013
361229000 By charged gas irradiation 1
20090303654TAILORED EMITTER BIAS AS A MEANS TO OPTIMIZE THE INDIRECT-CHARGING PERFORMANCE OF A NANO-STRUCTURED EMITTING ELECTRODE - Exemplary embodiments provide charging systems and methods for effectively delivering charges onto a receptor. The charging system can include a low velocity gas stream, an emitter assembly for providing cathode-to-anode field bias to generate charges from the low velocity gas stream, and an emitter-to-receptor (e.g., photoreceptor) electric bias to enhance the charge delivery to the receptor. The disclosed charging systems and methods can be used to achieve an optimal charging performance at a low projected cost for any suitable receptor that needs to be charged. Exemplary receptors can include a photoreceptor (PR) such as a belt PR or a drum PR, a toner layer, a sheet of media on which toner can be deposited, or a transfer belt in an electrophotographic printing machine.12-10-2009

Patent applications in class ELECTRIC CHARGING OF OBJECTS OR MATERIALS

Patent applications in all subclasses ELECTRIC CHARGING OF OBJECTS OR MATERIALS

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