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| Number | Title | Issue Date |
| 6975227 | Method for controlling coming and going personnel, and a system thereof A coming and going personnel control system having a high security level by prohibiting a coming person who has dealt with a dangerous substance from entering a facility through a control area is disclosed. Whether a person coming into the control area carries a dan... | 12/13/2005 |
| 6963479 | Method of and apparatus for electrostatic fluid acceleration control of a fluid flow A device for handling a fluid includes a corona discharge device and an electric power supply. The corona discharge device includes at least one corona discharge electrode and at least one collector electrode positioned proximate each other so as to provide a total ... | 11/08/2005 |
| 6952548 | Charging apparatus with auxiliary member and image forming apparatus having the charging apparatus A charging apparatus has a discharging member with a plurality of protrusions and an auxiliary member for assisting discharges by the discharging member, and an insulating member formed among the plurality of protrusions of the discharging member, so that discharge ... | 10/04/2005 |
| 6947237 | WORM magnetic tape with cartridge memory system and method A write once read many magnetic tape system has a tape cartridge housing a length of magnetic tape adapted to record and store electronic data, and an electronic memory device. A tape drive receives the tape and reads the memory device. The drive is operable only in... | 09/20/2005 |
| 6923979 | Method for depositing particles onto a substrate using an alternating electric field Uniform portions of fine powders are deposited on a substrate by electrostatic attraction in which the charge of the electric field and polarity of the charged particles are varied repeatedly to form a buildup of powder on the carrier surface. ... | 08/02/2005 |
| 6920297 | Image forming apparatus that cleans a wire of a charger An image forming apparatus wherein a wire of a charger is cleaned while a process unit is attached to or removed from a casing. A cleaning unit pinches the wire of the charger therein slidably, and reciprocates to clean the wire when the process unit is attached to ... | 07/19/2005 |
| 6917776 | Discharge wire, method of manufacturing discharge wire and electrification device A discharge wire usable in an electrification device includes a tungsten wire subjected to mirror finish processing and an oxidized layer formed by heating the surface of the tungsten wire at a temperature in the range 400 to 600° C., wherein the film has a thickne... | 07/12/2005 |
| 6917773 | Image forming apparatus The surface of a photosensitive body is charged by a scorotron charger including a discharge electrode, a back plate having an aperture on the bottom face, and a grid. Air is passed along the back plate for ventilation. The back plate also has a vent aperture on the... | 07/12/2005 |
| 6907888 | Ion generator and hairbrush using the same An ion generator includes a needle electrode and a ground electrode cooperable with the needle electrode to generate a corona discharge in the air to produce ions. The ground electrode is disposed so as to surround an imaginary extension of a longitudinal axis of th... | 06/21/2005 |
| 6900436 | Corona wire tensioning mechanism A wire tensioning mechanism for tensioning a wire having an end one and an end two in a machine in which the wire has a means for attachment on end two and is fixed to the machine at end one, comprises a slide block, and a spring. The slide block is slidably ... | 05/31/2005 |
| 6894279 | Narrow web corona treater A corona discharge device is adapted to be used in conjunction with a printing press. The device includes a cabinet housing an on-board power supply associated with a high voltage transformer. A rear end plate and a front end plate spaced apart in parallel relations... | 05/17/2005 |
| 6884997 | Method and apparatus for detecting dangerous substances and substances of interest A dangerous substance detecting apparatus comprises an oven for accommodating a wiping member stuck with a sample derived from a dangerous substance, a light source for emitting infrared rays for heating the sample, an ion source for ionizing the sample evaporated i... | 04/26/2005 |
| 6823157 | Charging device having curved grid A corona generating device, includes a conductor; a grid having a curved surface; and a frame for supporting the grid. ... | 11/23/2004 |
| 6795670 | Discorotron charging device In a high speed color printer wherein color images are produced by superposing a developed image atop another developed image, the improvement including a charging system for charging a surface, including: at least two coronodes; a housing with the at least two coro... | 09/21/2004 |
| 6787774 | Corotron comprising a fixing elements on supports, an assembly with a power supply unit and an assembly for replacing a corotron wire The corotron wire of a corotron device is introduced with a retainer element, such as in a printer or copier. At least one corotron wire is held by the retainer element and the carrier material for a latent image residing there opposite is conducted past the corotro... | 09/07/2004 |
| 6781136 | Negative ion emitting method and apparatus therefor A negative ion emitting method and an apparatus therefor capable of emitting negative ions with increased efficiency without generating ozone and positive ions while being simplified in structure. The apparatus includes a DC high-voltage power supply section and a d... | 08/24/2004 |
| 6777959 | Method of determining a resistive current A xerographic charging device corona current is determined by forming a first signal across a sense resistor in series with the charging device power supply, forming a second signal using a resistive voltage divider network across the power supply, and forming a thi... | 08/17/2004 |
| 6740878 | System and method for automatically tensioning wires and for retaining tensioned wires under tension A wire tensioning apparatus and method tensions one or more wires by moving the tensioning function from a wire module to an apparatus external to the wire module. Within the wire module, the wire is placed between a movable member and a stationary member. Tension i... | 05/25/2004 |
| 6735830 | Ion generating device 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 f... | 05/18/2004 |
| 6686592 | Mass spectrometer, mass spectrometry, and monitoring system An ion source using a corona discharge for ionizing a sample at high efficient is provided. In the corona discharge generated at a tip end of a needle electrode by application of high voltage thereto, the direction in which the sample is introduced to the... | 02/03/2004 |
| 6653638 | Ion generating apparatus In an ion generating apparatus, an electric field for generating ion is obtained between an electrode needle 3 and a counter electrode plate 4. A surface discharge path A (passing through an air discharge port 13a) which has the shortest distance between ... | 11/25/2003 |
| 6640065 | Electrostatic charging device An electrostatic charging device is provided according to which an edged electrode plate can be inserted into and removed from the charging device easily merely by sliding the edged electrode member and cleaning of the electrode edges formed on the edged ... | 10/28/2003 |
| 6624413 | Corona treatment apparatus with segmented electrode A corona treating apparatus has an electrically conductive electrode housing with a downwardly opening channel, within which are adjustably positioned a number of conductive electrode segments. Each segment has a stem which extends into the channel, and a... | 09/23/2003 |
| 6603121 | High-efficiency plasma treatment of paper An apparatus for treating paper web materials with a plasma, said apparatus comprising a dark space generated by a treatment electrode in a treatment zone. There is a counter electrode having a surface area in said treatment zone which is not greater than... | 08/05/2003 |
| 6580885 | Automatic mechanism for cleaning corona wires A mechanism for automatically cleaning the surface of a corona wire within a corona charger is described, wherein the a cleaning assembly includes a cleaning pad mounted within a pad holder, the cleaning pad wrapped around a substantial portion of a circu... | 06/17/2003 |
| 6553198 | Single piece control grid electrode for a corona charger A single piece control grid electrode for a corona charging device for charging a curvilinear shaped dielectric support member with improved charging uniformity and consistency and with lower assembly and service cost. The single piece control grid is for... | 04/22/2003 |
| 6512906 | Mechanism for fastening thin corotron wires and method for generating a corotron discharge A mechanism and a method for generating a corona discharge by a wire-shaped corona discharge electrode provides that the corona discharge electrode is stretched between two end blocks that respectively contain a space for the acceptance of a respective el... | 01/28/2003 |
| 6493529 | Charging device with walls surrounding the electrodes which reduce ozone emissions A charging device which charges a body to be charged. At least a pair of linear electrodes is provided on a substrate so as to be close to each other. Walls are provided near the linear electrodes. Each of the walls has a height larger than a line width o... | 12/10/2002 |
| 6459870 | Corona cartridge for charging photoreceptors in high-speed electrophotographic applications A corona cartridge for charging a photoreceptor in high-speed electrophotographic applications may include a comb-like corona charging device electronically connected to operate with the photoreceptor, and one or more excess comb-like corona charging devi... | 10/01/2002 |
| 6429595 | Multi-mode treater with internal air cooling system A treater system includes a conductive roller electrode that supports a moving web that is to be treated. One or more active electrode assemblies mounted to support headers have a pair of active electrodes that are positioned to treat one surface of the w... | 08/06/2002 |
| 6407382 | Discharge ionization source A discharge ionization source, for use for example with an ion mobility spectrometer or atmospheric pressure ionization mass spectrometry. The source uses two or more electrodes for ionization and control, and solid state circuitry for operation. Inductiv... | 06/18/2002 |
| 6373680 | Method and device for ion generation A method of high efficiency generation of ions of desired polarity, which includes the steps of positioning a first electrode at a predetermined spacing from a second electrode having a closed shape configuration, applying to both electrodes a direct volt... | 04/16/2002 |
| 6349024 | DC biased AC corona charging In one corona charging arrangement described in the specification, a coronode supplied with AC voltage is contacted by an insulating member in the form of a mesh of insulating filaments or an imperforate dielectric insulating member or filaments wound aro... | 02/19/2002 |
| 6320190 | Air shield for a particle detection system A shield for a detector or prism of a particle detection system has a body mountable on the detector or prism, divided into first and second compartments by an intermediate wall with a hole therethrough. Air diffuser units In the first compartment (adjace... | 11/20/2001 |
| 6303933 | Apparatus and method of attaching corona wire to corona charger housing An apparatus comprising: (i) a corona charger housing including at least two cavities; (ii) a corona wire strung across the housing, the corona wire having at least one end located in one of the cavities; and (iii) a pin at least partially located inside ... | 10/16/2001 |
| 6298204 | Corona Charger with integral latch member for locating the charger relative to a roller A corona charger and integral latch member device includes a corona charger having a longitudinally ending wall and a corona generating electrode extending generally parallel with the longitudinally extending wall and spaced a predetermined distance there... | 10/02/2001 |
| 6294782 | Corona charger with a serpentine strung corona wire An apparatus for a corona wire housing comprising a continuous piece of corona wire mounted in a serpentine fashion around multiple pulleys with a single tension spring tensioning the continuous piece of corona wire and fixed terminals supporting the ends... | 09/25/2001 |
| 6285032 | Device for removing the gaseous laminar boundary layer of a web A device for removing the gaseous laminar boundary layer from at least one of the two sides of a material web moved in transport direction preferably at high speed, for example said web being made of paper, characterized by at least one corona-charging el... | 09/04/2001 |
| 6255649 | Charging device with grid tensioning shafts A charging device comprises a housing defining a charging chamber. Two tensioning shafts are mounted on opposite ends of the housing. The charging device comprises a control grid attached to the grid tensioning shafts, thus substantially covering the cham... | 07/03/2001 |
| 6246852 | Grid electrode for corona charger A grid electrode for attachment to a corona charger includes a series of substantially parallel grid wires extending in a longitudinal direction of the wires. A flat metallic plate member is formed integral with the wires at one of the longitudinal ends o... | 06/12/2001 |
