2674results about "Electrostatic charges" patented technology

Apparatus for dispensing paper from rolls which feeds continuously, roll to roll, and does not require extra procedure to bring stub roll into position. The apparatus holds and positions at least first and second rolls of paper with respect to each other; dispenses paper from the first roll; dispenses paper from the first and second rolls simultaneously when the first roll reduces to a predetermined diameter of paper, positions the depleted first roll for replacement without the necessity of removing the second roll; and dispenses from the second and replacement rolls simultaneously when the second roll reduces to a predetermined diameter of paper. The apparatus also has a proximity sensor, which senses when a hand is placed near the dispenser, and thereupon dispenses a set amount of towel. The proximity sensor incorporates “static” and noise immunity circuitry.

A method and apparatus for generating plasma in a fluid. The fluid (3) is placed in a bath (2) having a pair of spaced electrodes (4, 6) forming a cathode and an anode. A stream of bubbles is introduced or generated within the fluid adjacent to the cathode. A potential difference is applied across the cathode and anode such that a glow discharge is formed in the bubble region and a plasma of ionized gas molecules is formed within the bubbles. The plasma may then be used in electrolysis, gas production, effluent treatment or sterilization, mineral extraction, production of nanoparticles or material enhancement. The method can be carried out at atmospheric pressure and room temperature. The electrodes may carry means to trap the bubbles in close proximity. Partitions may be present between the electrodes.

Apparatus and method for generating and controlling flows of positive and negative air ions includes interposing isolated sets of electrodes in a flowing air stream to separately produce positive and negative ions. The rates of separated production of positive and negative ions are sensed to control ionizing voltages applied to electrodes that produce the ions. Variations from a balance condition of substantially equal amounts of positive and negative ions flowing in the air stream are also sensed to alter bias voltage applied to a grid electrode through which the air stream and ions flow.

An acoustic transducer comprising a substrate; and a diaphragm formed by depositing a micromachined membrane onto the substrate. The diaphragm is formed as a single silicon chip using a CMOS MEMS (microelectromechanical systems) semiconductor fabrication process. The curling of the diaphragm during fabrication is reduced by depositing the micromachined membrane for the diaphragm in a serpentine-spring configuration with alternating longer and shorter arms. As a microspeaker, the acoustic transducer of the present invention converts a digital audio input signal directly into a sound wave, resulting in a very high quality sound reproduction at a lower cost of production in comparison to conventional acoustic transducers. The micromachined diaphragm may also be used in microphone applications.

A lightning protection system for protecting composite structures and a method of protecting composite structures from lightning strikes. A dielectric ply is fixed above and completely covers metal surface features, e.g., skin fasteners through a composite skin to a wing fuel tank. A conductive ply is fixed above and completely covers the dielectric ply and extends to an external connection to a platform ground. The conductive ply directs current from lightning strikes away from metal surface features, e.g., to the platform ground. Both plies may be adhesively backed and sequentially pressed into place.

A grounding brush for mitigating static electric charge on a motor shaft includes a plurality of filaments secured to an annular frame around the shaft, with tips of the filaments disposed in a channel defined by the frame. Conductive powder can be provided in the channel to improve current flow from the shaft to the filaments.

A lightning detection system for detecting and locating an initial discharge of an initial leader stroke of a lightning flash. An initial lightning discharge produces a pulse that can be used to accurately detect lightning, and more particularly, the location of the initial lightning discharge. In one embodiment, at least three sensors detect and determine the location of the first pulses from initial lightning discharges using time difference of arrival information of the pulses at each of the three sensors. In another embodiment, a single sensor is used to determine the range of an initial lightning discharge from the amplitude of a corresponding initial detected pulse, and to determine the direction from a crossed loop antenna An alternative embodiment of a single sensor system determines a distance of a lightning event from a peak amplitude value derived from a pulse amplitude distribution. In a further embodiment, a lightning detection system provides enhanced lightning location by incorporating weather data from a weather radar with detected lightning information.

An electrical apparatus includes a reaction chamber. A stream of contaminated gasses flows through the chamber. An elongated coronating electrode is positioned in the reaction chamber for producing a corona discharge within the chamber. A multi-stage Fitch generator connected to the electrode produces a high level, rapidly pulsating voltage in the electrode. Controlled amounts of an inert gas or inert gas-air mixture are combined with the contaminated gases to provide a high concentration of inert gas in the reaction chamber. In the inert gas-enriched atmosphere, the pulsating corona discharge produces a high concentration of metastable intermediates that greatly increase the rate of chemical conversion of the contaminants. Switching circuitry allows the pulsating voltage output of the Fitch generator to be superimposed on a constant direct current voltage in the electrode, setting up an electrostatic field in the reaction chamber for removing conversion byproducts from the gas stream.

A structural joint for the transmission and control of high current flows in a carbon fiber or carbon fiber hybrid composite structure, said joint includingat least two composite structures comprising a multiplicity of resin bonded carbon fiber plies,an adhesive applied there between and capable of conducting high currentssaid adhesive comprising a conductive carrier film comprising carbon fibers,wherein the electrical conductivity of the adhesive is comparable with that of the adjacent composite structures.

In a wind turbine (104, 500, 704) having a plurality of blades (132, 404, 516, 744) and a blade rotor hub (120, 712), a lightning protection system (100, 504, 700) for conducting lightning strikes to any one of the blades and the region surrounding the blade hub along a path around the blade hub and critical components of the wind turbine, such as the generator (112, 716), gearbox (708) and main turbine bearings (176, 724).

Techniques for preventing electrostatic discharge (ESD) and circuit noise are provided. More particularly, the present invention provides a method to prevent ESD damage during the assembly of computer disk commonly called a hard disk for memory applications. The coating mainly involves a ion-deposition process. Merely by way of example, the present invention is implemented by using filtered cathodic vacuum arc (FCVA) with a dissipative crystalline and/or amorphous carbon base thin film coating on a flexible circuit to drain the potential electrostatic charges during circuit assembly and interconnect processes, yet it would be recognized that the invention has a much broader range of applicability on any electronic apparatus that is susceptible to electrostatic damage and static noise.

An ion sening circuit comprises a bridge sensing circuit and a differential amplifying circuit. The bridge sensing circuit detects the ion concentration of the solution in the operation mode of constant voltage and constant current. The differential amplifying circuit compares the output of the bridge sensing circuit and a floating reference voltage, thereby the delivered voltage to the bridge sensing circuit, such that the opeation mode of constant voltage and constant current is formed accordingly. The main features of the disclosed circuit are that it grounds the reference electrode and floats the source terminal. The drawbacks of not being manufactured with intergrated circuits by CMOS technology and low benefits when applied to sensor arrays are avoided by the disclosed circuit.

The present invention relates to an omnidirectional intelligentized remote networking system in automotive field, and is in particular suitable to an intelligentized management system in car maintenance. The present invention mainly comprises three subsystems that are running condition detecting system, condition decoding system and fault early warning notice system of the car, wherein, the running condition detecting comprises an OBD vehicle automatic diagnosis module and an additional inspection module, the additional inspection module uses an optical fiber to transmit the inspection result data, which is transmitted to a condition decoding module together with a data output by the OBD vehicle automatic diagnosis module; the condition decoding module unscrambles an OBD fault code and an additional detection sensing detecting data, the fault code is transmitted to the fault early warning notice system, and the control center and users are informed through mobile communication network by utilizing a GSM/GPRS module chip. Compared with the prior art, the present invention has the functions of remote self-check diagnosis and fault early warning for vehicle fault, thus realizing that the fault detection and the fault resolution are real time, accurate and effective, and offering the potent assurance to the daily maintenance work of vehicles, the personnel safety of the owners of the vehicles, and the unimpeded transport of urban and rural road.

A method of and system for recirculating a fluid in a particle production system. A reactor produces a reactive particle-gas mixture. A quench chamber mixes a conditioning fluid with the reactive particle-gas mixture, producing a cooled particle-gas mixture that comprises a plurality of precursor material particles and an output fluid. A filter element filters the output fluid, producing a filtered output. A temperature control module controls the temperature of the filtered output, producing a temperature-controlled, filtered output. A content ratio control module modulates the content of the temperature-controlled, filtered output, thereby producing a content-controlled, temperature-controlled, filtered output. A channeling element supplies the content-controlled, temperature-controlled, filtered output to the quench chamber, wherein the content-controlled, filtered output is provided to the quench chamber as the conditioning fluid to be used in cooling the reactive particle-gas mixture.

This process occurs in the presence of activated carbon or its equivalent by decomposing adsorbed hazardous materials, such as hydrazine and microorganisms, on the carbon surface by radiofrequency energy in the microwave range at near ambient conditions of temperature and pressure. Further microwave oxidation to nonhazardous gases occurs in the presence of a microwaves enhanced oxidation catalyst.

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.

A process for the production of hydrogen from anaerobically decomposed organic materials by applying an electric potential to the anaerobically decomposed organic materials, including landfill materials and sewage, to form hydrogen, and for decreasing the time required to treat these anaerobically decomposed organic materials. The organic materials decompose to volatile acids such as acetic acid, which may be hydrolyzed by electric current to form hydrogen. The process may be continuously run in sewage digestion tanks with the continuous feed of sewage, at landfill sites, or at any site having a supply of anaerobically decomposed or decomposable organic materials.

A lightning protection appliqué incorporates a plurality of conductive plies adhesively affixed to a composite surface, at least a first one of the plies providing conductive characteristics sufficient to divert electrical energy from a lightning strike and at least a second one of the plies comprising operational circuitry. A dielectric ply is fixed to the composite surface over and completely covering at least one metal surface feature between the plurality of conductive plies and the composite surface.

Disclosed herein are electrochromic devices, including eyewear, windows, and displays, prepared by in situ formation of conjugated polymers.

The present invention enables the degree of freedom in communication to be enhanced. According to the present invention, in an authentication system 1, during a walking motion of a user which is essentially required for the user to pass through an entrance/exit passage portion 4 (FIG. 6), tissue information D5 and walking information D7 as living organism identification information, a pattern specific to a user, is detected from an detection electrode 52 via an FET 11, based on a walking quasi-electrostatic field HSE formed in the neighborhood of the user. Thereby, information with high identifiability specific to the user can be obtained without controlling movements of the user and without performing special processing such as encryption. Thus, the degree of freedom in communication can be enhanced.

Systems, methods and apparatus for reducing instabilities in a plasma-based processing system are disclosed. An exemplary method includes applying power to a plasma with a power amplifier; determining whether low frequency instability oscillations are present or high frequency instability oscillations are present in the plasma; and altering, based upon whether high or low frequency instability oscillations are present, an impedance of a load that is experienced by the power amplifier, the load experienced by the power amplifier including at least an impedance of the plasma.

A silicon-germanium ESD element comprises a substrate of a first dopant type coupled to a first voltage terminal and a first diode-configured element. The first diode-configured element has a collector region of a second dopant type in the substrate, a SiGe base layer of the first dopant type on the collector region, with the SiGe base layer including a base contact region, and an emitter of the second dopant type on the SiGe base layer. Preferably, the SiGe base layer ion the collector region is an epitaxial SiGe layer and the second dopant type of the emitter is diffused in to the SiGe base layer. The ESD element of the present invention may further include a second diode-configured element of the same structure as the first diode-configured element, with an isolation region in the substrate separating the first and second diode-configured elements. The first and second diode-configured elements form a diode network. In each of the embodiments, the isolation regions may be disposed adjacent the collector regions of the diode elements and below a portion of the SiGe base layer of the diode elements. The SiGe base layer in the diode elements preferably comprises an active, single crystal layer in a portion directly over the collector region and a polycrystalline layer in portions directly over the isolation regions. The isolation regions may be shallow or deep trench isolations.

A system for protecting a composite-body aircraft from damage caused by lightning strikes includes a Faraday cage defined on the exterior surface of the aircraft body by a continuous, electrically conductive grid that extends to the outermost lateral periphery of the body. In one possible embodiment in which the aircraft's body includes a plurality of composite panels that are joined at their adjacent edges by splice plates, the conductive grid may advantageously be formed by electrically conductive splice plates, e.g., of titanium, that have their respective, adjacent ends electrically connected to each other, e.g., with conductive straps and fasteners. The conductive grid provides preferential attachment points and conductive paths for lightning strikes on the surface of the aircraft, thereby shielding the interior of the grid from lightning damage. The conductive grid can optionally function as a ground return path for the aircraft's electrical system.

This invention provides the oxidative mixed water with pH around 7.4 ranging from the weak acidity to weak alkalinity, high power of killing microorganisms, and high power of healing wound by electrolysis using the three-compartment cell composed of an anode compartment, a cathode compartment, and a middle compartment between the anode compartment and the cathode compartment. Mixing anode water with cathode water produced using the three-compartment device forms the oxidative mixed water.

The present invention provides a fluidized bed device for handling fine particles as a fluidized bed in a medicine manufacturing process, a cosmetic manufacturing process, a food manufacturing process, a chemical manufacturing process and the like, wherein influence of static electricity is suppressed, and a method for neutralizing the static electricity using that device. The fluidized bed device includes an X-ray irradiation unit for irradiating fine particles in the fluidized bed device with X-rays.

A system operating in an environment having an ambient pressure, the system comprising: a reactor configured to combine a plasma stream, powder particles and conditioning fluid to alter the powder particles and form a mixture stream; a supply chamber coupled to the reactor; a suction generator configured to generate a suction force at the outlet of the reactor; a fluid supply module configured to supply the conditioning fluid at an original pressure; and a pressure regulation module configured to: receive the conditioning fluid from the fluid supply module, reduce the pressure of the conditioning fluid from the original pressure to a selected pressure relative to the ambient pressure regardless of any changes in the suction force at the outlet of the reactor, and supply the conditioning fluid at the selected pressure to the supply chamber.

The invention relates to apparatus for generating ions in a gaseous medium, the apparatus comprising one or more needles (40) each presenting a shank (40.1) and an emitter end (40.2), a sheath (42) of composite material comprising glass fiber reinforced unsaturated polyester surrounding the shank (40.1) of each needle, and means (44, 46, 80) for applying a voltage between two portions of the shank of each needle.

A cable management panel having a grounding arrangement. The grounding arrangement including a rolling ground strap interconnected to each of a drawer and a chassis of the cable management panel. The rolling ground strap being arranged to include a loop that rolls along the length of the ground strap.

A porous nanozeolite material having a first dimension less than about 1 micron and a second dimension less than about 100 microns. The nanozeolite material comprises pores having an average diameter less than about 50 nm. A method of making microporous nanozeolites is provided. The method comprises the steps of providing an aqueous solution comprising at least one nanozeolite precursor material or zeolite particles, and electrospinning the aqueous solution onto a substrate to form an electrospun material. The electrospun material comprises microporous nanozeolites. A method of making mesoporous nanozeolites is also provided. The method comprises the step of providing an aqueous solution comprising a nanozeolite precursor material and at least one structure directing agent, and electrospinning the aqueous solution onto a substrate to form an electrospun mesoporous nanozeolite material. A gas sensor device is provided. The device comprises nanozeolite sensing material.

The present invention relates to a vehicle air purifier with a negative/positive ion generator and an air conditioning system using the same. The vehicle air purifier includes a case including an air inlet and an air outlet, a filter arranged in the case at the side of the air inlet, a blower fan rotatably mounted in the case, and a negative/positive ion generator arranged in an air path of at least one of the air inlet and the air outlet, to emit negative ions and positive ions to air in accordance with emission of electrons. The negative/positive ion generator includes a body fixed to the case and provided with a high-voltage generator for generating high-voltage pulses, and a first discharge electrode and a second discharge electrode electrically connected to the high-voltage generator, to generate electrons by the high-voltage pulses applied from the high-voltage generator, and to emit the electrons to the air path of the at least one of the air inlet and air outlet, thereby causing negative ions and positive ions to be generated.