Exxon Research and Engineering Company

Charged Injection Corporation

Charge Injection Technologies, Inc.

Other

Zyw Corporation

Charged Injection Corporation, by Said Arnold J. Kelly

Foury, Inc.

Arnold James Kelly

Donald J Mintz

Anthony M Gleason

Frederick Prahl

An electrostatic atomizer electrostatically atomizes a fluid into a charged spray, wherein the charged spray includes a plurality of charged droplets. The electrostatic atomizer includes a chamber forming an inlet and an exit aperture, wherein the chamber is configured for fluid to flow into the chamber from the inlet and to flow out of the chamber from the aperture. An emitter electrode is in liquid contact with the fluid in the chamber and injects an electrical charge into the fluid in the chamber. An impedance circuit is coupled to the chamber and configured to obtain a voltage difference between the emitter electrode and the exit aperture, wherein the voltage difference is at least a minimum voltage threshold.

Methods for an electrostatic atomizer of moderately conductive fluids

Systems and methods for rapidly atomizing and dispensing electrostatically atomized insecticides and similar low electrical conductivity active materials without the use of VOCs. The active materials are dispensed via insertion of a disposable cartridge in a dispensing apparatus. The dispensing apparatus is hand actuated and the exhausted cartridge is minimized to the size of a wad of chewing gum and it is doubly sealed to prevent any residual active material from leaking into the environment. Spray flow and configuration may be user selectable.

VOC-less electrostatic fluid dispensing apparatus

An apparatus for dispersing fluent material comprises a body defining a plurality of orifices arranged around a central axis and a charge injection device arranged on the central axis.

Method and apparatus for high throughput charge injection

An apparatus for separating a stream of particles comprises a charging device for injecting a net charge into a plurality of particles and a collector adjacent the charging device. The collector is grounded and arranged so that the charged particles disperse and collect on the collector according to a characteristic of the particle, such as size. A method of separating a stream of particles is also disclosed.

Method and apparatus for particle size separation

A fiber is formed by providing a stream of a solidifiable fluid, injecting the stream with a net charge so as to disrupt the stream and allowing the stream to solidify to form fibers.

Method and apparatus for high throughput generation of fibers by charge injection

An electrostatic atomizer includes a body defining an interior space and a discharge orifice communicating with the interior space. An emitting electrode or electron gun is disposed inside the body so as to apply charges to the fluid passing through the interior space. A counter electrode is disposed outside the body. The exposed surfaces on the interior of the body are formed from a dielectric material so that there are no substantial electric field between exposed conductive elements on the inside of the body. This arrangement minimizes soot buildup and plugging of the orifice. The device may include a single element defining numerous orifices and formed by micro-machining techniques such as those used in fabrication of semiconductor devices. Orifice sizes as small as a few micrometers can use successfully to provide controllable atomization at extremely low flow rates.

Electrostatic atomizers

An electrostatic atomizer is disclosed, which includes an electrode or other charge injection device and a source of liquid for passing a stream of liquid past the charge injection device to a variable orifice. The variable orifice is defined between at least two elements, which are movable with respect to each other. A compact stove incorporating the atomizer includes a support for supporting articles to be heated by the burning of atomized fuel. The variable orifice may be used in the stove to control the flow, and therefore thermal output, of the stove.

Electrostatic atomizer based micro-burner for logistic fuels

An electrostatic atomizer has a power source powering a charge injection device. The power source is arranged to vary the net charge injected by the charge injection device cyclically in accordance with a pattern of variation so that the net charge repeatedly increases to a higher value at or above a long-term breakdown value. The net charge injected is reduced by the power source to a lower value below the long-term breakdown value so that corona-induced breakdown is reduced. A method for electrostatically atomizing a fluent material is provided. The method includes the step of cyclically varying the net charge injected to reduce the occurrence of corona-induced breakdown.

Pulsing electrostatic atomizer

An electrostatic atomizer comprises a power source for powering a charge injection device, a controller for controlling the net charge injected by the charge injection device, and a sensor for sensing breakdown precursors in the vicinity of the orifice and producing a feedback signal upon the occurrence of the breakdown precursors. The sensor is in communication with the controller and the controller is responsive to the feedback signal so that upon occurrence of the feedback signal, the controller decreases the net charge injected. A method of minimizing corona-induced breakdown in an electrostatic atomizer comprises the steps of providing a fluent material with a net charge to atomize the fluent material, and responding to the occurrence of breakdown precursors by decreasing the net charge of the liquid to avoid corona-induced breakdown.

Electrostatic atomizer with controller

A beam tube having a hole or 'window' covered by a thin, beam permeable membrane is provided with a polymeric ring for minimizing stress concentration in the membrane adjacent the periphery of the hole to relieve stress concentrations that would otherwise occur when the membrane is forced inwardly into the hole by atmospheric or other pressure on the exterior of the tube. The exterior surface of the housing for the beam tube contains means for retaining the polymeric ring in a predetermined location on the exterior surface. The retaining means which retain the polymeric material away from the hole may comprise an annular channel formed in the exterior surface of the front wall, an annular raised inner ridge formed on the exterior surface, an annular raised outer ridge also formed on the exterior surface to define an annular track between the outer and inner ridges, or a ring of flow preventing material on the exterior surface of the housing. In a manufacturing method, a liquid polymer precursor is placed on the exterior surface of the front wall and retained by the retaining means when the membrane, precursor and housing are heated to an elevated bonding temperature so as to cure the polymer precursor to form the polymeric ring retained by the retaining means away from the hole during the bonding step.

Beam window devices and methods of making same

An electron tube having a hole or 'window' covered by a thin, electron permeable membrane is provided with means for minimizing stress concentration in the membrane adjacent the periphery of the hole, thereby relieving stress concentrations which would otherwise occur when the membrane is forced inwardly into the hole by atmospheric or other pressure on the exterior of the tube. In a manufacturing method, a polymeric ring may be provided between the membrane and the exterior wall of the tube. The polymeric ring, desirably a polyimide has a glass transition temperature less than the elevated temperature used to expel volatile materials from the interior of the tube. The polymeric ring substantially relieves stresses induced by differential thermal expansion or contraction at temperatures between the glass transition temperature and the elevated temperature, as during cooling following the volatile removal step.

Electron beam window devices and methods of making same

Methods and apparatus for dispersing a fluent material utilizing an

Apparatus for dispersing a fluent material such as a liquid includes a device for discharging a stream of the fluent material and a device for providing energetic electrons such that the electrons impinge on the fluent material to provide a net negative charge on the fluent material in the discharged stream. The fluent material discharged is dispersed at least partially under the influence of the net negative charge so imparted. The electron-supply device includes a chamber separated from the fluid passageway by an electron-permeable membrane, and may also include an electron gun for generating a beam of energetic electrons such that the electron beam passes through the window and impinges on the fluent material. The electrons may impinge on the fluent material as the fluent material is discharged from the device so that the fluid flow carries the charged portions of the fluent material away from the device. The apparatus may be used to atomize liquids even where the liquids are electrically conductive.

In electrostatic atomization of liquids wherein a stream of electrically charged liquid is atomized under the influence of the electrical charge, the stream is surrounded by a mist to increase the dielectric breakdown strength of the surrounding atmosphere. This permits use of higher charge levels and hence more efficient atomization. The mist may incorporate minute droplets of the liquid to be atomized. An insulating vapor may be formed from the liquid by heating a portion of the liquid and employed in place of or in addition to the mist.

Growing community of inventors

Princeton Junction, NJ, United States of America

Arnold James Kelly