Patents Issued in March 20, 2003
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Publication number: 20030052235Abstract: A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes, angle irons, channels, plates, among others. The fitting includes a set screw, preferably angled, and a sharp-cornered recess which assist in resisting withdrawal of the brace from the jaws. The method of manufacturing is desirably simple and expeditious, thereby ensuring that the fitting is inexpensive.Type: ApplicationFiled: November 1, 2002Publication date: March 20, 2003Inventor: Richard W. Heath
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Publication number: 20030052236Abstract: A clamp for sealing a lap joint is disclosed. The clamp includes a band having a main body and bolts mounting flanges located at opposite ends of the main body. A sealing bar is mounted between the bolt mounting flanges of the band. The sealing bar includes a pre-formed step for assisting in sealing the lap joint.Type: ApplicationFiled: September 14, 2001Publication date: March 20, 2003Applicant: Donaldson Company, Inc.Inventors: James E. Vogel, John L.. Belisle, Wayne M. Wagner
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Publication number: 20030052237Abstract: A music stand has a tripod stand, a shaft disposed on the tripod stand, a rod connected to the shaft, a tube disposed on the rod, a mount disposed on the tube, an adjustment frame, a first hollow gasket plate, a second hollow gasket plate, an adjustment button, a screw rod, a bolt, a hollow nut, and a music rest. The mount has an upper block, a through hole, and two opposite grooves to receive the first hollow gasket plate and the second hollow gasket plate. The adjustment button has a threaded hole. The music rest has a rear socket. The adjustment frame has an insertion end inserted in the rear socket, a threaded aperture, a first lug and a second lug. The mount is disposed between the first lug and the second lug. The bolt fastens the rear socket, the adjustment frame, and the hollow nut together. The screw rod fastens the adjustment frame, the mount, and the adjustment button together.Type: ApplicationFiled: September 20, 2001Publication date: March 20, 2003Inventor: Ming-Ti Yu
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Publication number: 20030052238Abstract: Motor adjustable support device for the upholstery of a seat and/or of reclining furniture, especially suited for a bed mattress, including a base body having rails, and one adjustable support element adjustable relative to the base body. An adjusting device for the adjustment of the support device relative to the base body may be provided. One of the rails may be hollow or open on one side for receiving part of the adjusting device. The one adjustable element can be adjusted between a first adjustment position and a second adjustment position and that interacts with the support element, and that is received in the first adjustment position in a rail, or as viewed in a side view, for example, within the bounds of the rail, and that protrudes in the second adjustment position over the rail toward the support side.Type: ApplicationFiled: June 24, 2002Publication date: March 20, 2003Inventors: Johannes Schneider, Eckhart Dewert
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Publication number: 20030052239Abstract: A mailbox post assembly and kit for insertion into the ground and for supporting a mailbox, in which an elongate, hollow post has cooperating openings for transversely receiving a hollow beam, decorative inserts are mounted on the post and beam to give the appearance of a brace, and during transportation or storage, the hollow beam and the decorative inserts fit inside of the hollow post.Type: ApplicationFiled: September 18, 2001Publication date: March 20, 2003Inventor: Ronald D. Erwin
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Publication number: 20030052240Abstract: A portable satellite dish stand is disclosed, for use in providing satellite communications in conjunction with a portable computer classroom or other vehicle. The satellite stand has a stabilization plate that secures the stand against wind using the weight of the vehicle. The stand is lightweight and easy to assemble, and can be assembled without using any tools because it uses quick-release positive locking pins to join the components of the stand. Although it is big enough to accommodate virtually any portable satellite dish, when disassembled the stand is small enough for easy transport.Type: ApplicationFiled: September 14, 2001Publication date: March 20, 2003Inventor: David Roy Springett
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Publication number: 20030052241Abstract: The invention relates to a leveling shoe with a base plate (1) that has a base surface (2) and with a support plate (4) for an object that can be adjusted by means of an adjusting wedge device (3) in a rectangular height direction to the base surface (2aim of the invention is to provide a leveling shoe that has an improved stability and is yet simple and inexpensive in its production. To this end, the adjusting wedge device (3) comprises two wedges (7, 10) that can be moved towards or away from each other by actuating a screw spindle (6), said wedges being provided with support surfaces (11, 12) for the support plate (4). Said support surfaces (11, 12), in every position of wedges (7, 10), are disposed symmetrically to a first plane (E1) that is perpendicular to the base surface and in which the axis of a fastening screw extends that links the object with the base plate (1) or with the foundation and that projects through the support plate (4). The Screw spindle axis (6) is provided with two screw parts (6a.Type: ApplicationFiled: September 19, 2002Publication date: March 20, 2003Inventor: Roger Bizaj
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Publication number: 20030052242Abstract: A device for supporting a container having a wire handle and a sidewall on a support structure is disclosed. The device includes a pair of spaced apart side members, with each of the side members having an upper portion adapted to engage the support structure and a notch sized to receive the wire handle. A central portion of the device is disposed between the side members, with the central portion defining a receiving area sized and shaped to receive the container such that the receiving area engages only the sidewall of the container.Type: ApplicationFiled: July 30, 2002Publication date: March 20, 2003Inventor: Theodore R. Salani
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Publication number: 20030052243Abstract: A hanger provides for the display of an article container having wall structure extending from a floor of the container to an open end permitting viewing of the article and a lid for the container, the hanger including a hanger portion and a support portion depending from the hanger portion and having a first course extending transversely forwardly of the hanger portion, a second course defining a bend continuous with an end of the first course, a third course extending transversely from the second course toward the hanger portion and continuous with the second course, a fourth course extending transversely rearwardly of the hanger portion and a fifth course extending downwardly from an end of the fourth course, the first and third courses defining a slot therebetween having one slot end closed by the second course and a second open slot end. One using the hanger places container wall structure in the slot by inserting the third hanger course into the open end of the container.Type: ApplicationFiled: September 17, 2001Publication date: March 20, 2003Inventors: Chester Kolton, Michael Norman, Robert Whittemore
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Publication number: 20030052244Abstract: A curtain rod has a C-shaped cross section for receiving tongues on main wall mountable main brackets. Slotted supplementary brackets are mountable over the main brackets for permitting one or more supplementary curtain rods to be hung without drilling holes in the wall additional to those provided for the main brackets. Intermediate main and supplemental brackets support long curtain rods between their ends to prevent sagging. The supplemental curtain rod brackets are adapted for hanging the supplemental curtain rods at heights varying from that of the main curtain and the main and supplemental curtain rod brackets are further adapted for independently varying the distance of each set of curtains from the wall. Decorative hangers have rollers for movements along the main curtain rod have bumpers to prevent overlapping of the wheels and resultant binding.Type: ApplicationFiled: September 19, 2002Publication date: March 20, 2003Inventor: Allan Goldstein
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Publication number: 20030052245Abstract: A mounting system for an operator control implement comprises a manipulation tube which defines a first axis and upon one end of which an operator control implement is adapted to be mounted. The manipulation tube extends through a housing within which a first clutch assembly is disposed, and in conjunction with which there is disposed a first cam member. A first fixed support member defines a second axis, and a second support member is rotatably mounted upon the first support member. The second support member is fixedly mounted upon the housing, and a second clutch assembly is interposed between the first and second support members.Type: ApplicationFiled: September 17, 2001Publication date: March 20, 2003Applicant: LOCKHEED MARTIN CORPORATIONInventors: James Edward McKeown, Stephen Paul Foisy
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Publication number: 20030052246Abstract: A powered seat sliding apparatus includes a sliding mechanism having a lower rail and an upper rail being movable in a lengthwise direction relative to the lower rail, a feed screw fixedly supported by the upper rail to be rotated around a rotational axis in the lengthwise direction in response to a rotational force of a motor, a slit train provided at both side portions of the lower rail in the lengthwise direction and being engaged with the feed screw, and a feeding mechanism defined between the feed screw and the slit train so as to slidably move the upper rail relative to the lower rail.Type: ApplicationFiled: August 23, 2002Publication date: March 20, 2003Inventors: Naoaki Hoshihara, Sadao Ito, Genta Moriyama, Hideo Nihonmatsu
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Publication number: 20030052247Abstract: A vibration control unit in which a rolling element having a first curved surface that is a convex surface is interposed between a first and second members, and the rolling element is allowed rolling with respect to the first member in the first curved surface thereof. The rolling element has a second curved surface that faces the first curved surface and is formed of a curved surface center different from that of the first curved surface. As the rolling element, resulting from an additional force applied on the first and second curved surfaces, rolls with respect to the first member, the second member vibrates with a restoring force determined based on an average curvature radius of the first and second curved surfaces of the rolling element and a distance between curved surface centers of the first and second curved surfaces.Type: ApplicationFiled: July 30, 2002Publication date: March 20, 2003Inventors: Masashi Yasuda, Shohei Minbu, Gongyu Pan, Masataka Nakashima
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Publication number: 20030052248Abstract: A bracket is removably attached to a side panel of an enclosure of an electronic apparatus. A module, that is capable of loading into and unloading from the bracket, is provided with a protuberance and a tapped hole. The bracket has an engaging portion, adapted to engage the protuberance of the loaded module, and an aperture located in a position opposite the tapped hole of the loaded module. The module is held in a predetermined position in the bracket in a state that the protuberance engages the engaging portion and a fixing screw is driven into the tapped hole through the aperture.Type: ApplicationFiled: September 4, 2002Publication date: March 20, 2003Inventor: Akira Imamura
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Publication number: 20030052249Abstract: A self-climbing concrete wall form hoist for forming a concrete wall section atop a previously formed wall section has a wall mounting releasably secured to the previously formed wall section, a moveable vertical mast, a channel in the wall mounting which guideably receives the moveable mast, a platform alternatively supported on the mast and on the wall mounting, upper and lower dog latch assemblies mounted on the platform and pivotable between a platform raising position when the mast is supported on the wall mounting and a mast raising position when the platform is supported on the wall mounting, and an extensible and retractable linear actuator interconnecting the upper and lower dog latch assemblies for raising the platform relative to the mast when the dog latch assemblies are in the platform raising position and for raising the mast relative to the platform when the dog latch assemblies are in the mast raising position.Type: ApplicationFiled: January 18, 2000Publication date: March 20, 2003Inventors: Thomas Waldschmitt, Randy Pauley
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Publication number: 20030052250Abstract: In a laser-driving device including a high-frequency current generating circuit generating a high-frequency current superimposed on a control current output from a light intensity control circuit for light intensity control, and supplied to a laser diode as a drive current, the high-frequency current generating circuit has a sourcing current source, a sinking current source, current switches connected between the current sources and a drive output terminal respectively, a gated oscillation circuit oscillating with a desired frequency, and switch drive circuits complementarily on/off controlling the current switches by using a drive switching signal obtained by removing a high-frequency component from an output signal of the oscillation circuit.Type: ApplicationFiled: October 28, 2002Publication date: March 20, 2003Inventor: Toyoki Taguchi
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Publication number: 20030052251Abstract: A method for adjusting variable illumination parameters of a laser imagesetter including laser power, focus adjustment, scan rate, and/or feed rate during the illumination of a photosensitive material, in particular, during illumination tests, includes the steps of reducing the time taken and the workload for determining the correct imagesetter setting by calculating at least some of the illumination parameters, prior to the adjustment, based upon imagesetter-independent characteristic data including material thickness, material sensitivity, material-specific test patterns, and/or material-specific evaluation criteria of the photosensitive material to be illuminated, and, subsequently, adjusting the calculated illumination parameters automatically.Type: ApplicationFiled: November 5, 2002Publication date: March 20, 2003Inventors: Jorg-Achim Fischer, Jorg Suhr
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Publication number: 20030052252Abstract: An arithmetic circuit, which is retained by each pixel in a conventional image sensor, is shared by each column. Signal processing circuits of different configurations are provided on signal transmission paths in an upward direction and a downward direction of a vertical signal line for extracting an image signal from each pixel, whereby image output processing and arithmetic processing are performed completely separately by the different circuit blocks. Thus, image quality of an actual image is improved and optimum design for arithmetic processing is made possible. Specifically, an I-V converter circuit unit, a CDS circuit unit and the like are provided on the image output side. A current mirror circuit unit, an analog memory array unit, a comparator unit, a bias circuit unit, a data latch unit, an output data bus unit and the like are provided on the arithmetic processing side.Type: ApplicationFiled: September 18, 2002Publication date: March 20, 2003Inventors: Toshinobu Sugiyama, Shinichi Yoshimura, Ryoji Suzuki, Kazuhiro Hoshino
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Publication number: 20030052253Abstract: An optical device and system and method for monitoring a fault condition in an optical device. A loop-back path couples a portion of an optical signal from a first transmission path to a second transmission path as a loop-back signal. The loop-back path includes at least one optical attenuator configured to attenuate the loop-back signal in response to at least one detected condition. The loop-back signal may be detected by line monitoring equipment, where the attenuation imparted by the attenuator is interpreted as corresponding to the detected condition.Type: ApplicationFiled: September 17, 2001Publication date: March 20, 2003Applicant: TerraWorx, Inc.Inventor: Steven R. Johnson
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Publication number: 20030052254Abstract: A method of installing a multi-beam photoelectric safeguard system for making a light curtain of closely aligned light beams closely to a pressing machine first positions main light emitting and detecting devices (11, 12). The method next mounts a projecting portion (21) to the pressing machine and identifies optical axes interrupted by the projecting portion (21). Subsequently, after setting a sub light detecting device (13) adjacent to one side of the projecting portion (21), the method adjusts optical axes between the sub light detecting device (13) and the main light emitting device (11). Finally, after setting a sub light emitting device (14) adjacent to the other side of the projecting portion (21), the methods adjusts optical axes between the sub light emitting device (14) and the main light detecting device (12).Type: ApplicationFiled: August 30, 2002Publication date: March 20, 2003Inventors: Motohiro Kudo, Tetsu Inoue
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Photoelectric conversion unit, apparatus for measuring location and/or direction and method therefor
Publication number: 20030052255Abstract: A pointing position or direction is accurately determined with a simple constitution without burden to a user. A pair of PDs (photodiodes) forming one photoelectric conversion unit provide a light receiving surface of valley fold with respect to a light source, and another pair of PDs forming the photoelectric conversion unit provide a light receiving surface of mountain fold with respect to the light source. In the same manner, a pair of PDs forming another photoelectric conversion unit provide a light receiving surface of valley fold, and another pair of PDs forming the photoelectric conversion unit provide a light receiving surface of mountain fold. The outputs from the light receiving surfaces of valley fold and mountain fold are averaged in the respective photoelectric conversion units to countervail an error caused from the both, whereby the position of the light source can be accurately located.Type: ApplicationFiled: September 16, 2002Publication date: March 20, 2003Applicant: FUJI XEROX CO., LTD.Inventor: Hiroyuki Hotta -
Publication number: 20030052256Abstract: Fiber optic sensor with transmission/reflection analyzer for detection and localization of a perturbation that generates additional losses in the test fiber.Type: ApplicationFiled: September 17, 2001Publication date: March 20, 2003Inventors: Vasilii V. Spirin, Mikhail G. Shlyagin, Serguei V. Miridonov, Francisco J. Mendieta Jimenez, Alfredo Marquez Lucero
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Publication number: 20030052257Abstract: Optical touch switches are implemented based on the use of light total internal reflection and light scattering concepts. The optical touch switch basically consists of a light source, a light guide, a photodetector, and an electronic controller. The fingertip touching on the touching surface of the optical touch switch leads to the change in electrical current produced by the photodetector. As a result, the electronic control box senses this change of electrical current and allows the electrical load to stay at the desired state. Key advantages include ease of implementation, prevention of the light beam incident directly on the user's eyes, and ability to accept both strong and weak mechanical forces from users.Type: ApplicationFiled: August 21, 2002Publication date: March 20, 2003Inventor: Sarun Sumriddetchkajorn
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Publication number: 20030052258Abstract: In order to identify a fiber optic cable (10) a beam (14) of polarised light is caused to pass down the cable to a first site (A) at which an electromagnetic field (24) is applied to the cable (10). The electromagnetic field (24) traverses the cable (10) in an essentially transverse direction and has a time-varying component orientated along the length of the cable (10) at the first site (A), with the component varying so that the line integral thereof along the cable (10) is non-zero. This results in a variation in the polarisation of the light, which can the be detected by a polarisation discriminator (20) at a second site (B), thereby to identify the cable (10).Type: ApplicationFiled: November 6, 2002Publication date: March 20, 2003Applicant: Radiodetection LimitedInventors: Stuart John Russell, Andrew Biggerstaff Lewis, John Philip Dakin
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Publication number: 20030052259Abstract: A method for measuring characteristic properties of a plasma beam in a thermal spraying process, wherein the spraying materials are fed into the plasma (1) and the luminous radiation emitted by the plasma (1) is reproduced on optical fibers (2). The luminous radiation is reproduced on the one end (2a) of the optical fibers (2) arranged in a one-dimensional or two-dimensional array (6). Spectral analysis of the luminous radiation transmitted in the optical fiber (2) is accomplished with a spectrometer (3) arranged at the other end (2b) of an optical fiber (2). The frequency spectrums are analyzed in a processor (5) to determine the contemporaneous condition of the spraying process.Type: ApplicationFiled: August 16, 2002Publication date: March 20, 2003Inventors: Erwin Bayer, Jorg Hoschele, Stefan Schneiderbanger, Jurgen Steinwandel
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Publication number: 20030052260Abstract: There is provided a measurement system in which the calibration data is easily incorporated into or obtained by the position sensing and/or displacement sensing system's processing unit. A scale-based encoder has a signal processor that corrects for scale inaccuracy based on a limited set of correction coefficients. The correction coefficients are the slopes and offsets that define a piecewise linear correction curve corresponding to the errors inherent in the scale. Several ways for communicating the coefficients to the processor are envisioned. Correction is applicable to linear or rotary encoders.Type: ApplicationFiled: September 19, 2001Publication date: March 20, 2003Applicant: MicroE Systems CorporationInventors: Donald L. Grimes, Stuart E. Schechter, Donald K. Mitchell
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Publication number: 20030052261Abstract: An optical encoder assembly for an optical encoder for determining rotation of a rotatable shaft. An encoder housing is non-engageable with the shaft. A receiver plate is attached to the encoder housing, has a first side and a substantially opposing second side, and has a through hole and a window both extending from the first side to the second side, wherein the through hole is engageable with the shaft. An encoder mask is attached to the first side of the receiver plate, has a shaft hole engageable with the shaft, and has a mask grating positioned over the window. A light emitter is aligned to face the first side of the receiver plate and is positioned over the mask grating. A light detector is attached to the second side of the receiver plate and is positioned over the window.Type: ApplicationFiled: September 19, 2001Publication date: March 20, 2003Inventors: Alexander Lloyd Chapman, Adam Jude Ahne, Michael Anthony Marra, Christopher Alan Adkins, Barry Baxter Stout, Patrick Laurence Kroger, David Michael Cseledy
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Publication number: 20030052262Abstract: The invention relates to an optoelectronic displacement or angle measuring device, comprising a coded disc (1) and a photosensitive sensor device (2), fixed to the above, with a number of adjacent photoelectric converter elements (W), arranged transverse to the longitudinal direction of the coding (3) and an illumination device for optical imaging of the coding (3) on the coded disc (1) onto the photosensitive surface of the sensor device (2). The coded disc (1) comprises a digital code (3) and an analog encoded track consisting of a number of individual, coded segments (7, 7′), arranged sequentially in a row, in the direction of the measured path and which is defined in that the analog encoded track forms part of a continuous reference code track (4), symmetrical about the mid-point, the code segments (7, 7′) of which are placed sequentially in a row and which define an uninterrupted analog code track.Type: ApplicationFiled: October 15, 2002Publication date: March 20, 2003Inventors: Frank Blasing, Ralph Bobel
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Publication number: 20030052263Abstract: An apparatus for identification of chemical species by measurement of mobility as a function of high electric field and for generating unique compound-dependent signatures based on ion mobility at a plurality of peak RF voltages for a given compensation. The resulting detection data is compared against a library of data in order to identify a detected chemical species.Type: ApplicationFiled: June 28, 2002Publication date: March 20, 2003Applicant: Sionex CorporationInventors: Lawrence A. Kaufman, Raanan A. Miller, Erkinjon G. Nazarov, Evgeny Krylov, Gary A. Eiceman
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Publication number: 20030052264Abstract: A laser-cooled fluorescence mass spectrometry apparatus includes an ion trap for trapping sample ions, laser-cooled ions, and probe ions therein; a first irradiating device for irradiating the sample ions, the laser-cooled ions, and the probe ions in the ion trap with a first laser beam for cooling the ions; a second irradiating device for irradiating the sample ions, the laser-cooled ions, and the probe ions in the ion trap with a second laser beam for detecting temperature changes in the ions; a detecting device for detecting the temperature changes in the ions; a first ion source for the sample ions; a second ion source for the laser-cooled ions; and a third ion source for the probe ions. The probe ions may be different ions than the laser-cooled ions, or the probe ions may be the same ions as the laser-cooled ions.Type: ApplicationFiled: August 12, 2002Publication date: March 20, 2003Inventors: Takashi Baba, Izumi Waki, Dongbing Wang
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Publication number: 20030052265Abstract: A method and a system for monitoring combustion condition are provided for monitoring the state of combustion in a garbage incinerator, an internal combustion engine, or the like. Combustion off-gas produced by combustion is collected and ionized to produce ions which are fed to a mass spectrometer for detecting a signal strength associated with an ion for each mass-to-charge ratio. The degree of unsaturation is calculated for an ion detected by the mass spectrometer from the mass-to-charge ratio of the ion. Then, signal strength values associated with ions having the same degree of unsaturation are accumulated for each degree of unsaturation.Type: ApplicationFiled: August 20, 2002Publication date: March 20, 2003Inventor: Yoshiaki Kato
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Publication number: 20030052266Abstract: In a mass spectrometer, an ion of a sample gas is produced in an ion source by colliding the gas with an electron beam, and is introduced into a magnetic field or an electric field. The ion is separated based on the mass number, and the sample is analyzed from a mass spectrum. The ion source has an electrode made of stainless steel, which is baked at a temperature in a range from 200° C. to 700° C. in an air atmosphere.Type: ApplicationFiled: September 5, 2002Publication date: March 20, 2003Applicant: Shimadzu CorporationInventors: Manabu Shimomura, Hiroto Itoi
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Publication number: 20030052267Abstract: A method for determining the molecular mass M of at least a chemical element at the output of a mass spectrometer which includes a dissociation box where the ions of an element supplied by an ion source are dissociated into several fragments, an electrostatic analyzer where the fragments are subjected to an electric field so as to select fragments having a predetermined specific mass (mi) according to the electric field and a detector for detecting the fragments at the output of the electrostatic analyzer. The method includes calculating a ratio between the masses of two unknown fragments for all the possible couples of fragment masses, comparing each of the ratios obtained with the mass ratios of standard fragments corresponding to the compounds currently obtained by dissociation of a particular element, and the determining the mass M of the element using the ratios of unknown fragments which are equal to the ratios of the standard fragments.Type: ApplicationFiled: May 24, 2002Publication date: March 20, 2003Inventor: Marcel Devienne
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Publication number: 20030052268Abstract: A method, system, and apparatus for mass spectroscopic analysis of an analyte solution in which a liquid volume of the analyte solution is irradiated with a light source resulting in desorption of solution-specific ions into a surrounding gas to produce gas-phase ions, the gas-phase ions are transferred to an inlet port of a mass analyzer, and the gas-phase ions are mass analyzed. More specifically, the apparatus may include a laser configured to pulse irradiate a surface of the analyte solution, a mass spectrometer configured to mass-analyze the gas-phase ions according to the mass-to-charge ratio, and a transfer mechanism configured to transfer the gas-phase ions to an inlet port of the mass spectrometer.Type: ApplicationFiled: September 17, 2001Publication date: March 20, 2003Applicant: Science & Engineering Services, Inc.Inventors: Vladimir M. Doroshenko, Victor V. Laiko, Mikhail Yakshin, Coorg R. Prasad, Hyo Sang Lee
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Publication number: 20030052269Abstract: A transfer capillary and interface are provided that allow samples from multiple fluid streams to be introduced into a single mass analyzer. The transfer capillary has two or more channels and is placed between a first chamber, in which ions from the multiple fluid streams are generated, and a second chamber that is in fluid communication with a mass analyzer. The interface includes ionizers that generate ionized sample from each fluid stream and that direct the ionized sample toward the channels of the transfer capillary. The transfer capillary includes a multiplex selector that allows ions to flow through a selected subset of channels and sequentially changes which of the channels are included in the subset of channels through which ions flow.Type: ApplicationFiled: September 20, 2001Publication date: March 20, 2003Inventors: James A. Apffel, Hongfeng Yin, Thomas P. Doherty
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Publication number: 20030052270Abstract: An electron beam length-measurement apparatus for measuring a length of a predetermined portion of an object by using an electron beam, includes: an electron gun for emitting the electron beam; a deflecting unit for deflecting the electron beam; an object holding unit on which the object is to be placed; a detector for detecting electrons that are scattered by the electron beam; a memory for storing layout position information that specifies a layout position at which the predetermined portion of the object; a length-measurement scanning controller for controlling the deflecting unit to scan with the electron beam to allow the layout position on the object to be irradiated with the electron beam; and a measurement unit operable to measure the length of the predetermined portion of the object based on a changing manner of the electrons successively detected by the detector while the length-measurement scanning controller scans with the electron beam.Type: ApplicationFiled: October 18, 2002Publication date: March 20, 2003Applicant: ADVANTEST CORPORATIONInventors: Jun Matsumoto, Takayuki Nakamura
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Publication number: 20030052271Abstract: An infrared (IR) sensitive pixel and an IR imager including the same. According to one embodiment, the pixel includes a substrate assembly having a cavity defined by at least one sidewall and a cantilevered beam connected to the substrate assembly and disposed in the cavity. The cantilevered beam includes a first spring portion and a first capacitor plate portion, wherein the first spring portion includes at least two materials having different coefficients of thermal expansion. The pixel further includes a second capacitor plate portion, such that incident IR radiation causes the first spring portion of the cantilevered beam to move laterally relative to the sidewall, thereby creating a variable capacitance between the first capacitor plate portion of the cantilevered beam and the second capacitor plate portion.Type: ApplicationFiled: November 19, 2001Publication date: March 20, 2003Inventors: Gary K. Fedder, Hasnain Lakdawala
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Publication number: 20030052272Abstract: The present invention provides a liquid concentration detecting method and a liquid concentration detecting apparatus in which light beams of at least two different wavelength bands having a central wavelength within a range of from 1.4 to 2.05 &mgr;m are irradiated on to a solution, and concentrations of at least two constituents contained in the solution are detected by detecting the amount of light transmitting through the solution relative to the light beams of each wavelength band. The present invention permits inline real-time detection at a high accuracy of concentrations of a plurality of constituents contained in a chemical solution used in a semiconductor manufacturing process or a liquid crystal substrate manufacturing process. Further, according to the present invention, it is possible to high-accuracy and high-reliability detection of the liquid concentration with a simple configuration.Type: ApplicationFiled: September 9, 2002Publication date: March 20, 2003Inventors: Norihiro Kiuchi, Takehiro Kiuchi
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Publication number: 20030052273Abstract: In a multistage active infrared sensor, the light emitters 11A, 11B, 11C emit infrared signals which contain distinct channel information. These light emitters 11A, 11B, 11C emit the infrared signals at different timings from each other. This sensor judges whether the infrared signals received by light receivers 12A, 12B, 12C contain channel information of opposite light emitters 11A, 11B, 11C. The sensor cancels any infrared signal which does not contain the channel information of the opposite light emitters 11A, 11B, 11C.Type: ApplicationFiled: September 19, 2002Publication date: March 20, 2003Inventor: Masashi Iwasawa
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Publication number: 20030052274Abstract: A light sampling system for sampling scattered light from mirrors in an optical switch. The system includes four basic components: an imaging lens, a multi-channel liquid crystal light valve (LCLV), a collecting lens, and a light sensor. Light scattered by each mirror, is collected by the imaging lens, which re-images the light onto the LCLV. The LCLV is divided into multiple regions, one for each mirror to be monitored. Each region can independently be made opaque (“closed”) or transparent (“open”) to light reaching it. Light passing through all open regions of the LCLV is collected by the collecting lens, which focuses the light onto the light sensor. The light sensor registers a response to light passing through the LCLV. Each region of the LCLV can be programmed to be open or closed for any length of time, in any combination or sequence with any other region or regions, depending upon how the user wishes to monitor the scattered light.Type: ApplicationFiled: September 20, 2001Publication date: March 20, 2003Inventor: Donald Bruns
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Publication number: 20030052275Abstract: A device for the in-situ monitoring of EUV radiation flux includes an integrated reflective multilayer stack. This device operates on the principle that a finite amount of in-band EUV radiation is transmitted through the entire multilayer stack. This device offers improvements over existing vacuum photo-detector devices since its calibration does not change with surface contamination.Type: ApplicationFiled: September 18, 2001Publication date: March 20, 2003Inventor: Kurt W. Berger
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Publication number: 20030052276Abstract: A radiation detector comprises two electrode arrangements, each including a dielectric substrate and an electrically conducting layer formed on a first surface of respective dielectric substrate, wherein the electrodes are oriented such that the conducting layers are facing each other. A dielectric spacer is provided to hold the electrodes at a distance from each other to thereby define an inter-electrode space, which, during use, is filled with an ionizable gas. The electrodes are held at respective electric potentials to drift electrons released during ionization of the ionizable gas by external radiation towards one of the electrodes for detection.Type: ApplicationFiled: November 2, 2001Publication date: March 20, 2003Inventors: Tom Francke, Christer Ullberg, Juha Rantanen
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Publication number: 20030052277Abstract: Water is supplied to a water user outlet facility by maintaining a tappable flow of water in a recirculating loop that includes a pump such as a centrifugal pump driven by a substantially constant speed motor to establish the flow, a water delivery path that extends from the pump to the outlet facility, and a water return path that extends from the outlet facility back to the pump. The flow is permitted to be controllably tapped at the facility by a water user while directing any untapped portion of the flow into the water return path. Such recirculation avoids stagnation and thereby impedes deterioration in the potability of the water. Further such recirculation makes the recirculating loop and water within the loop less sensitive to the temperature of the surrounding environment. The recirculating loop may include a water purifier such as an ultra-violet lamp source to kill organic contaminants and, as well, may include a filter to remove inorganic material.Type: ApplicationFiled: October 11, 2002Publication date: March 20, 2003Inventor: Robert E. Walker
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Publication number: 20030052278Abstract: An apparatus and method for sterilizing a heat sensitive liquid by irradiation of the liquid with ultraviolet (UV) radiation includes an outer quartz tube arranged coaxially with an inner heat exchange tube to form an annular flow channel between the tubes. The coaxial tubes are contained in a cylindrical housing adapted to secure a plurality of UV lights in a ring around the coaxial tubes. As the liquid to be sterilized flows continuously through the annular flow channel, the liquid is irradiated as the UV radiation produced by the UV lights passes through the quartz tube, while the liquid is simultaneously being cooled by the heat exchange tube to prevent heat damage to the liquid.Type: ApplicationFiled: September 18, 2001Publication date: March 20, 2003Inventor: Raul Duarte
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Publication number: 20030052279Abstract: Irradiation lamps of an ultraviolet-light irradiation apparatus are uniformly cooled to achieve an appropriate temperature of the walls of the lamps and the ultraviolet light emitted from the lamps is efficiently reflected toward an object to be irradiated so that the ultraviolet light is efficiently irradiated onto the object to be irradiated. A plurality of low-pressure mercury lamps are arranged in parallel. A reflective mirror is arranged above the low-pressure mercury lamps so as to reflect the ultraviolet light emitted by the low-pressure mercury lamps. An exhaust passage defined by the reflective mirror suctions air around the low-pressure mercury lamps and exhausts the suctioned air to outside. The reflective mirror has a plurality of openings arranged along a longitudinal direction of the low-pressure mercury lamps, and a part of the openings has a size different from a size of other parts of the openings.Type: ApplicationFiled: March 22, 2002Publication date: March 20, 2003Inventor: Kenji Kikuchi
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Publication number: 20030052280Abstract: A method for operating a confocal microscope system includes deflecting a light beam on a specimen with at least one beam deflection device. The position of the light beam is stepped with at least one beam deflection device across the specimen. A sample of emitted fluorescent light from the specimen is captured in synchronization with each of the stepped positions of the light beam. An image is obtained from the captured samples of emitted fluorescent light.Type: ApplicationFiled: July 23, 2002Publication date: March 20, 2003Inventors: Thomas H. Foster, David L. Conover, Chad E. Biglow, Irene Georgakoudi, Andrey Mezhiba, Soumya Mitra
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Publication number: 20030052281Abstract: An aerosol lab-on-a-chip (ALOC) integrates one or more of a variety of particle collection, classification, concentration (enrichment), and characterization processes onto a single substrate or layered stack of such substrates. By mounting a UV laser diode laser light source on the substrate, or substrate stack, so that it is located down-stream of the sample inlet port and at right angle to the sample particle stream, the UV light source can illuminate individual particles in the stream to induce a fluorescence response in those particles having a fluorescent signature such as biological particles. some of said particles. A illuminated particle having a fluorescent signal above a threshold signal would trigger a sorter module that would separate that particle from the particle stream.Type: ApplicationFiled: April 30, 2002Publication date: March 20, 2003Inventors: Daniel J. Rader, John R. Torczynski, Karl Wally, John E. Brockmann
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Publication number: 20030052282Abstract: A wafer holder assembly includes first and second main structural members from which first and second wafer-holding arms extend. The first arm is secured to the main structural members by a graphite distal retaining member. The second arm is pivotally biased to a wafer-hold position by a graphite bias member. This arrangement provides a conductive path from the wafer to the assembly for inhibiting electrical discharges from the wafer during the ion implantation process. The assembly can further include additional graphite retaining members for maintaining the structural integrity of the assembly during the extreme conditions associated with SIMOX wafer processing without the need for potentially wafer-contaminating adhesives and conventional fasteners. The wafer-contacting pins at the distal end of the arms can be formed from silicon. The silicon pins can be coated with titanium nitride to enhance electrical contact with the wafer and to provide an abrasion resistant surface.Type: ApplicationFiled: May 29, 2002Publication date: March 20, 2003Applicant: IBIS TECHNOLOGY CORPORATIONInventors: Bernhard F. Cordts, Julian G. Blake
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Publication number: 20030052283Abstract: Heat energy produced for heating is absorbed into a silicon wafer, and the thermal deformation of the silicon wafer is prevented. An ion implanting apparatus comprises an ion source for producing an ion beam; a process chamber for containing the silicon wafer; a rotating body disposed and rotated in the process chamber; a holding means for holding the silicon wafer of an object to be ion-implanted with a spacing between an ion implanted area of the object to be ion-implanted and the holding means, the holding means being connected to the rotating body; and a heating means for heating the silicon wafer in the process chamber, wherein the holding means holds the silicon wafer in a state in contact with a part of a region in an outer peripheral side of the silicon wafer, and blocks the silicon wafer to move toward an acting direction of a centrifugal force.Type: ApplicationFiled: October 30, 2002Publication date: March 20, 2003Applicant: Hitachi, Ltd.Inventors: Hiroyuki Tomita, Kazuo Mera
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Publication number: 20030052284Abstract: A lithographic apparatus includes a support that provides a magnetic force in a first direction between a first part and a second part of the apparatus. The support comprises first, second and third magnet assemblies, the first and third magnet assemblies attached to the first part and each including at least one magnet oriented such that its magnetic polarization is substantially parallel or anti-parallel to the support direction. The first and third magnet assemblies define a space between them in a second direction that is substantially perpendicular to the first direction. The second magnet assembly is attached to the second part and includes at least one magnet. The second magnet assembly is at least partly located in the space. The at least one magnet of the second magnet assembly has its magnetic polarization oriented so as to produce a bias force substantially along the support direction by magnetic interaction between the first, second and third magnet assemblies.Type: ApplicationFiled: May 30, 2002Publication date: March 20, 2003Inventors: Sven Antoin Johan Hol, Edwin Johan Buis, Robrecht Emiel Maria Leonia De Weerdt