Patents Issued in November 21, 2002
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Publication number: 20020170304Abstract: Methods and systems consistent with this invention control a hot gas bypass valve in a refrigeration system including a centrifugal compressor, a condenser, an evaporator, and a hot gas bypass line between the compressor and the evaporator. Such methods and systems continuously sense for a surge condition during operation of the refrigeration system, indicate a surge condition when the refrigeration system is operating under surge conditions, and open at least partially the hot gas bypass valve in response to the sensed surge condition to return the refrigeration system to operating under non-surge conditions. Methods and systems consistent with this invention also sense a present head parameter representative of the present head of the compressor, sense a present load parameter representative of the present load, and control the hot gas bypass valve so as to avoid surging in the compressor in response to the present head parameter, the present load parameter, and stored head and load parameters.Type: ApplicationFiled: May 21, 2002Publication date: November 21, 2002Applicant: York International CorporationInventors: Gregory K. Beaverson, Harold B. Ginder, Dennis L. Deitz, Sakin R. Cakmakci
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Publication number: 20020170305Abstract: An air conditioning system for a vehicle comprises a compressor, an electric motor for driving the compressor, a device for variably controlling a rotational speed of a drive shaft of the compressor based on a target rotational speed of the drive shaft of the compressor; a device for limiting the rotational speed of the drive shaft of the compressor to less than the target rotational speed of the compressor when a first value of a current detected at the electric motor is greater than or equal to a first predetermined value; and a device for terminating the limiting of the rotational speed of the drive shaft of the compressor when a second value of the detected current is less than a second predetermined value during the limit operation.Type: ApplicationFiled: May 3, 2002Publication date: November 21, 2002Inventor: Seichi Nakajima
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Publication number: 20020170306Abstract: A separate-type air conditioner that can reduce the effect of voltage fluctuations in a commercial power supply (12) on a compressor (11), reduce material costs while maintaining vibrations of an outdoor unit (2) at low levels, and improve working efficiency during an assembly operation. The outdoor unit (2) includes a voltage correction circuit (14) to keep an output voltage to the compressor (11) constant (optimum) irrespective of the voltage fluctuations in the commercial power supply (12).Type: ApplicationFiled: July 17, 2002Publication date: November 21, 2002Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Toshiharu Nishizuka, Yuji Takeda, Daisuke Tabata
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Publication number: 20020170307Abstract: A separate-type air conditioner that can reduce the effect of voltage fluctuations in a commercial power supply (12) on a compressor (11), reduce material costs while maintaining vibrations of an outdoor unit (2) at low levels, and improve working efficiency during an assembly operation. The outdoor unit (2) includes a voltage correction circuit (14) to keep an output voltage to the compressor (11) constant (optimum) irrespective of the voltage fluctuations in the commercial power supply (12).Type: ApplicationFiled: July 17, 2002Publication date: November 21, 2002Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Toshiharu Nishizuka, Yuji Takeda, Daisuke Tabata
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Publication number: 20020170308Abstract: A manifold for charging a system which when in use cycles a refrigerant between liquid and gaseous states is disclosed. The manifold includes a housing defining a flow passage extending from an inlet to an outlet. Structure is within the housing to define a capillary in parallel communication with a section of the passage. A refrigerant state control valve is connected to the housing. The valve, when in the open position, enables concurrent refrigerant flow through both the section of the passage and the capillary to charge such a system with refrigerant in a liquid state. The valve when in the closed position sufficiently blocks the section of the passage to cause all refrigerant flow to be through the capillary thereby to enable charging such a system with refrigerant in a gaseous state.Type: ApplicationFiled: January 11, 2002Publication date: November 21, 2002Inventors: Tom J. Rakowski, Miles J. Dubinsky
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Publication number: 20020170309Abstract: A waist-mounted evaporative personal cooling device designed to cool the back of a user, comprises a blower (25), a liquid reservoir (29), a means to deliver liquid from the reservoir a mist of droplets into blower-forced air (33) or directly onto the skin area to which the forced air will be directed (45), and a duct (27) to guide forced air under the user's shirt or blouse and directly onto or across the skin of the user's back. The device improves on prior art coolers by delivering a powerful evaporative cooling effect directly to a user's back, while being compact, comfortably wearable, and requiring the user to do little or nothing to get its benefit.Type: ApplicationFiled: April 3, 2001Publication date: November 21, 2002Inventor: Ted Strauss
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Concentrated ammonia aqueous solution tank used in absorption diffusion type refrigerating equipment
Publication number: 20020170310Abstract: The present invention proposes a concentrated ammonia aqueous solution tank used in an absorption diffusion type refrigerating equipment. The present invention is characterized in that a capillary tissue is placed in the concentrated ammonia aqueous solution tank. The capillary tissue is formed by bending knitted metal nets or is integrally formed by means of sintering. Thereby, additional surface area of absorption reaction can be increased, and the volume and weight of the original absorber can be reduced, hence increasing refrigerating speed and reducing refrigerating temperature.Type: ApplicationFiled: May 14, 2002Publication date: November 21, 2002Inventors: Hao Pai, Ru He Jan, Chin Hung Kuo -
Publication number: 20020170311Abstract: The present invention provides a structure of the evaporation region of an absorption diffusion type refrigerating circulation. The refrigerating circulation comprises a generator, a rectifier, a condenser, an evaporator, a concentrated ammonia aqueous solution tank, and an absorber. An ammonia liquid pipe and a hydrogen pipe are arranged in a pipeline of the evaporator. The evaporator at the evaporation region has a simple shape and structure, and can be processed easily, hence saving the space thereof. Because the ammonia liquid pipe and the hydrogen pipe are arranged in the evaporator, the effect of heat exchange thereof is better, and the refrigerating temperature is lower.Type: ApplicationFiled: May 14, 2002Publication date: November 21, 2002Inventors: Hao Pai, Ru He Jan, Chin Hung Kuo
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Publication number: 20020170312Abstract: Plant (1) for liquefying natural gas comprising a main heat exchanger (10) in which the natural gas (5) is liquefied by means of indirect heat exchange with evaporating refrigerant, and a refrigerant circuit (20) in which evaporated refrigerant is compressed (23a, 23b) and liquefied to produce liquid refrigerant that is used in the main heat exchanger (10), wherein the refrigerant circuit (20) includes a compressor train (23a, 23b) consisting of at least one compressor (65a-67b) driven by an electric motor (83a, 83b).Type: ApplicationFiled: June 3, 2002Publication date: November 21, 2002Inventors: Duncan Peter Michael Reijnen, David Bertil Runbalk
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Publication number: 20020170313Abstract: The process and the apparatus serve for separating a gas mixture in a separation plant. A feed gas (18) is introduced into a compressor system (6, 16) and then into the separation plant. In the event of loss or partial loss of the compressor system (6, 16) of the first feed gas compressor (6), a first auxiliary stream (91, 92) which has approximately the composition of the first product stream or approximately the composition of the feed gas is compressed (78, 89) to at least approximately the first pressure and is recirculated to the separation plant.Type: ApplicationFiled: March 11, 2002Publication date: November 21, 2002Applicant: LINDE AKTIENGESELLSCHAFTInventors: Gerhard Zapp, Christian Kunz
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Publication number: 20020170314Abstract: An ornamental ring for being worn on an appendage of a person includes an inner surface and an outer surface. The inner surface joins the outer surface and is threaded to facilitate insertion onto and removal from an appendage of a person.Type: ApplicationFiled: May 16, 2001Publication date: November 21, 2002Inventor: Todd D. Konieczny
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Publication number: 20020170315Abstract: The present invention describes a mixed cut gemstone comprising a girdle, a crown above the girdle and a pavilion below the girdle. The crown has a girdle break, a table break and a table. The table break is cut with triangular shaped facets and the girdle break is cut with triangular and quadrilaterally shaped facets. The present invention also describes a pavilion having a width and a length formed by two pairs of opposing pavilion sides and four pavilion corners. The pavilion is composed of four steps including: a first step descending from said girdle to a first step facet junction, a second step descending from said first step facet junction to a second step facet junction, a third step descending from said second step facet junction to a third step facet junction, and a fourth step descending from said third step facet junction to said culet. This mixed cut gemstone enables the appreciation of the desirable characteristics of a diamond in ways that prior art cuts do not allow.Type: ApplicationFiled: September 10, 2001Publication date: November 21, 2002Inventor: Joesph Mardkha
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Publication number: 20020170316Abstract: In a device (5) for producing a quartz glass crucible (2) a section (14, 15) of a wall (13) of a rotating quartz glass crucible (2) is heated by at least two electrode arrangements (7, 8) which are evenly spaced along the periphery of the quartz glass crucible (2) and create a first and a second electric arc. The use of a plurality of electrode arrangements (7, 8) allows a reduction of the cooling phase of the section (14, 15) i.e. the time until it reaches the next heating zone (11, 12), so that undesirably high temperature differentials in the wall (13) are prevented. At the same time the required heat output of each individual electrode arrangement (7, 8) can be reduced so that vaporization and the concurrent bubble formation is reduced. In addition to the higher levels of quality attainable hereby, the duration of the manufacturing process is also reduced.Type: ApplicationFiled: March 11, 2002Publication date: November 21, 2002Inventors: Johann Leist, Rolf Gobel, Helmut Fritz
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Publication number: 20020170317Abstract: A method of bending glass, in which glass (5) is heated in a bending furnace (1). After the heating, the glass (5) is transferred onto a mould (7). The glass-bending mould (7) is at at least one point arranged to be bent substantially in its entirety when the mould (7) is transferred from the position it had during the initial heating of the glass (5) into a position where the glass (5) is arranged upon the mould (7).Type: ApplicationFiled: April 23, 2002Publication date: November 21, 2002Applicant: UNIGLASS ENGINEERING OYInventors: Jukka Vehmas, Juha Paavola, Antti-Jussi Numminen
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Publication number: 20020170318Abstract: A method and apparatus for the rapid sectioning of hollow cylindrical bodies by means of coherent light. The method applies to nonmetallic substances under special consideration of glass.Type: ApplicationFiled: April 2, 2001Publication date: November 21, 2002Inventors: Andreas Gartner, Anthony P. Pappalardo
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Publication number: 20020170319Abstract: A roll coater for placing binder on the fibers prior to being wound around a rotating drawing drum. The drawing drum draws fibers out of orifices in the bottom of a slowly reciprocating furnace. The fibers form a mat on the drawing drum that is later removed and expanded. The roll coater includes a graphite or other material coating drum that rotates in a bath of liquid binder and/or wetting agents, and reciprocates with the furnace. The fibers scrape over the surface of the coating drum after being formed but before winding around the drawing drum. The binder and/or wetting agent picked up on the surface of the coating drum coats the fibers with binder and/or wetting agent. Liquid binder and/or wetting agent is replenished in the bath in which the coating drum is partially submerged by a float, sensor, pump and large container of binder/wetting agent.Type: ApplicationFiled: May 16, 2001Publication date: November 21, 2002Inventors: Rodney R. Wilkins, Jack Compston
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Publication number: 20020170320Abstract: A core glass for making a preform for an optical fiber particularly useful for the transmission of ultraviolet radiation and methods for making the core glass are disclosed. The core glass is obtained by the flame hydrolysis of a silicon compound, deposition of finely granular SiO2 on a substrate with direct vitrification and formation of a synthetic quartz glass. The quartz glass has a hydrogen content of less than 1×1018 molecules/cm3.Type: ApplicationFiled: May 23, 2002Publication date: November 21, 2002Inventors: Gerhard Schotz, Jan Vydra
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Publication number: 20020170321Abstract: The present invention relates to a method of manufacturing an optical fiber suitable for high transmission rates, which method comprises the steps of:Type: ApplicationFiled: March 6, 2002Publication date: November 21, 2002Applicant: Draka Fibre Technology B.V.Inventors: Eric Aloysius Kuijpers, Peter Johannes Theodorus Pleunis
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Publication number: 20020170322Abstract: Knitting of a knitted fabric having a forked portion which is forked into a first knitting region and a second knitting region at a certain point of its knitting width by using a flat knitting machine including at least two yarn feeders arranged over needle beds. Prior to the knitted fabric being forked, a pair of right and left widening stitch loops that confront each other across the forked portion are formed at the back side of the knitted fabric during a course knitting of the knitted fabric, first, and, then, two groups of stitch loops, consisting of a pair of right and left stitch loops that are formed at a front side of the knitted fabric and confront each other across the forked portion and a pair of right and left widening stitch loops that are newly formed, are crossed to each other across a boundary of the forked portion. This can provide enhanced strength for the forked portion without impairing the appearance of the knitted fabric.Type: ApplicationFiled: June 5, 2002Publication date: November 21, 2002Inventor: Kazuyoshi Okamoto
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Publication number: 20020170323Abstract: A manually operated washing device suitable for delicate textiles or for small amounts of laundry, which device both makes it possible to avoid direct contact with water and detergents, and minimises the amount of water and detergents necessary for obtaining a good result.Type: ApplicationFiled: May 15, 2001Publication date: November 21, 2002Applicant: Alva EnterpriseInventor: Goran Stahl
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Publication number: 20020170324Abstract: A bicycle lock device with a housing holding an extensible and retractable cable on a spring-biased reel. The bias spring for the reel is substantially sealed, and the interior of the housing is open to the outside at only one opening, through which the cable passes. The cable may be pulled out from the housing to position its outer end between laterally spaced, outwardly projecting ears on the outside of the housing, with an opening at the outer end of the cable registering with openings in these ears for the attachment of a padlock. Additional projections are provided on the outside of the housing for attaching it to different parts of a bicycle frame.Type: ApplicationFiled: May 21, 2001Publication date: November 21, 2002Inventor: John H. Wilson
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Publication number: 20020170325Abstract: The invention provides a door unlocking system with the switch transmitting the signal to the central processing unit (10) according to the rotary direction of the key inserted into the key box to unlock the front and rear doors, wherein the switch is installed at the door latch (30) unlocking the driver door and the switch transmits the signal to the central processing unit according to the signal input in the key rod clip (31) to unlock the other doors, in the inserted status, the key turns to one direction to operate the switch, thereby installing the switch in the driver door regardless of the door chassis and the key rotor.Type: ApplicationFiled: October 11, 2001Publication date: November 21, 2002Inventor: Jae Hong Choi
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Publication number: 20020170326Abstract: A shell and core interchangeable lock assembly for use in a shell housing. The core includes a rotatable pin plug and the shell includes a substantially cylindrical body with a pin chest therein. A mechanism which captures the shell and core within the shell housing includes an integral retainer ring and lug which is attached to the core. The mechanism allows rapid insertion and removal of the shell and core by the use of a correctly bitted control key. The mechanism additionally has a sub-mechanism for preventing its operation by accident or by tampering without the appropriate control key.Type: ApplicationFiled: May 6, 2002Publication date: November 21, 2002Inventors: Peter H. Field, W. Daniel Boadwine
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Publication number: 20020170327Abstract: A system for shot peening that includes an enclosure in which are provided a workpiece W to be shot peened and a nozzle for projecting the shot particles. A memory stores data for maximizing the anticipated shot-peening intensity at the workpiece based on the predetermined conditions of the shot peening. Then a calculating circuitry determines the conditions of the shot peening to be carried out in the system to maximize an anticipated shot-peening intensity at the workpiece based on the stored data from the memory and the selected type of the shot-peening process to be applied to the workpiece before the shot particles have been actually projected. The nozzle is then actuated under the determined conditions such that it projects the shot particles and directs them onto the workpiece. The shot-peening intensity of the actually projected shot particles at the workpiece is measured by a measuring device.Type: ApplicationFiled: April 26, 2002Publication date: November 21, 2002Applicant: SINTOKOGIO, LTD.Inventors: Masatoshi Yamamoto, Hideaki Kaga
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Publication number: 20020170328Abstract: In a method of reshaping a tube, an apparatus is used which has a roller nip for rotating the tube, and a shaping roller assembly for altering the cross-section of the tube, for instance from round to oval.Type: ApplicationFiled: May 18, 2001Publication date: November 21, 2002Inventor: Lars-Ake Mattsson
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Publication number: 20020170329Abstract: In a long member bending apparatus having a bending head and a material supply unit, the bending head is composed of a base plate having a guide pipe, which includes a guide hole for passing a long member, at the center thereof, a movable plate having a die, which applies a bending force to the long member supplied from the guide pipe forward, disposed at the center thereof, and six extendable units including hydraulic cylinders interposed between the base plate and the movable plate and universal joints disposed to both the ends of each hydraulic cylinder, thereby a parallel link mechanism is arranged that executes a motion of a total of six degrees of freedom including three degrees of freedom of translational movement and three degrees of freedom of rotation by expanding and contracting the hydraulic cylinders to set the position (distance, offset), inclination, and the like of the movable plate with respect to the base plate.Type: ApplicationFiled: May 17, 2002Publication date: November 21, 2002Inventors: Ken Ichiryu, Yuji Terauchi, Katsuhiro Fujita
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Publication number: 20020170330Abstract: A cooling system capable of adequately press-quenching an extruded product of heat-treatable aluminum alloy immediately after extrusion without causing deformation and warpage in its cross section.Type: ApplicationFiled: March 14, 2002Publication date: November 21, 2002Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Toshiyuki Meki, Hitoshi Kawai, Toshiyuki Kobayashi, Masakzau Hirano
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Publication number: 20020170331Abstract: A method of elongating a tube (10) by way of a drawing ring (13), wherein, when elongating the tube (10), tensile forces are applied to an elongated tube portion (22) which has already passed through the effective drawing ring cross-section and that pressure forces are applied to a tube blank portion (11) which has not yet passed through the effective drawing ring cross-section, wherein the tensile forces are applied by a mandrel (16) which is positioned in the tube and which is connected to a front tube end in a form-fitting or force-locking way.Type: ApplicationFiled: April 9, 2002Publication date: November 21, 2002Inventors: Ulrich Brochheuser, Horst Statezni
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Publication number: 20020170332Abstract: A hemming machine for sheet metal is disclosed having a base adapted to be supported on a ground support surface. A cradle is vertically slidably mounted to the base while a nest is mounted to the cradle and adapted to support the part to be hemmed. Hemming tooling is mounted to the base and movable between an extended position in which the hemming tooling overlies the nest, and a retracted position in which the hemming tooling is spaced laterally outwardly from the nest. A pair of spaced ball screws are rotatably mounted to the base and threadably connected to the cradle on opposite sides of the nest so that rotation of the ball screws vertically displaces the cradle relative to the base. A single drive motor is drivingly connected through a two speed gear box to both ball screws to rotatably drive the ball screws in synchronism with each other.Type: ApplicationFiled: May 18, 2001Publication date: November 21, 2002Inventors: Kenneth Saint Denis, Ray Cote, Louis Raffin, Lee Harrison
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Publication number: 20020170333Abstract: A hemming machine having a stationary base and defining a work station. A lifting beam is vertically movably mounted to the base at the work station while a motor assembly moves the lifting beam between a raised and a lowered position. Two die cartridges, each having hemming tooling and a nest vertically movably mounted to the die cartridge, are horizontally movable relative to the base by a conveyor assembly. A conveyor motor selectively moves the die cartridges between a position laterally spaced from the work station and the work station. With the die cartridge positioned at the work station, a first clamp releasably secures the nest to the lifting beam while a second clamp assembly releasably secures the die cartridge to the base. With the nest secured to the lifting beam and the die cartridge secured to the base, hemming operations are performed at the work station in the conventional fashion.Type: ApplicationFiled: October 24, 2001Publication date: November 21, 2002Inventors: Kenneth Saint Denis, Ray Cote, Louis Raffin, Lee Harrison
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Publication number: 20020170334Abstract: An improved double action bottom former for forming and shaping a metal can blank includes an integral cylinder housing having sidewalls forming first and second axial chambers, wherein the second axial chamber houses a piston suspension assembly for resilient positioning of a clamp ring and the first axial chamber houses a dome plug, which is resiliently positioned through use of a donut spring. In addition to serving means to bias the dome plug, the donut spring includes an interior cylindrical space defining a third axial chamber to increase the volumetric capacity of the second axial chamber for added capability in controlling the resilient positioning of the clamp ring to permit high cyclic operation of the bottom former for a sustained period of time without deleterious impact on other operating components comprising bodymaking equipment.Type: ApplicationFiled: May 15, 2001Publication date: November 21, 2002Inventor: Mark L. Zauhar
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Publication number: 20020170335Abstract: A lightweight, versatile device is provided that can change from a hand held device to a bench top device that reshapes the broken end of a reciprocating saw blade and punches the necessary hole in said blade, thus allowing the blade to be reused.Type: ApplicationFiled: May 18, 2001Publication date: November 21, 2002Inventor: Kenneth Berntsen
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Publication number: 20020170336Abstract: The powered pipe cutter and the pipe flaring tool both have a piston slidably mounted in a cylinder. The cylinder has a top end closed by a top end plug. A crimped cartridge bore in the top end plug communicates with a gas expansion chamber. A bolt and firing pin assembly are attached to the cylinder top end. The pipe cutter includes a shear housing with a pipe passage connected to the rod end of the cylinder. A shear plate is connected to the piston and moves with the piston to shear pipes. The pipe flaring tool includes a pipe clamp assembly with a pipe passage and a female flaring surface connected to the cylinder rod end. A male flaring surface on the piston cooperates with the female flaring surface to flare pipe ends.Type: ApplicationFiled: May 16, 2002Publication date: November 21, 2002Inventor: Sam W. Carter
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Publication number: 20020170337Abstract: In a press forming machine for pressing a slide plate, which has a movable mold thereon, by using a plurality of driving sources, a control unit is disclosed, in which when offset load is applied on the slide plate, molding can be performed while the slide plate is maintained at a desired position relative to a fixed mold. In the press forming machine, engaging parts corresponding to the driving sources are provided on the slide plate, and displacement measuring units for measuring a displacement of the slide plate are provided near the engaging parts.Type: ApplicationFiled: March 7, 2002Publication date: November 21, 2002Inventors: Shoji Futamura, Keizo Unno
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Publication number: 20020170338Abstract: A vehicle frame straightening system includes a rigid vertical post secured to a rigid base and a circumferential post sleeve slidably mounted about an upper segment of the post. The system further includes an elongate pulling member including a frame engagement element at one end and a circumferential sleeve slidably mounted about a central segment of the pulling member, the sleeve having a frame-opposing end and a fame-distal end. An axle is transversely mounted upon the post sleeve to which is pivotally secured the pulling sleeve member. The system also includes first and second linear position actuation elements, the first of which is pivotally mounted to the first sleeve above the axle. Selectable actuation of the second linear position actuation element effects incremental linear pulling of the pulling member inclusive of the frame engagement elements of the system.Type: ApplicationFiled: March 19, 2001Publication date: November 21, 2002Inventors: Jose Ivan Vilches, Hector P. Vilches
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Publication number: 20020170339Abstract: An ultrasound phantom simulating hard and soft tissue of a vertebrate and methods of production and use of same. The ultrasound phantom includes a hard tissue derived from a second vertebrate organism and a material covering at least a portion thereof. The material has ultrasonic properties similar to those of soft tissue. Also disclosed is a method of producing an ultrasound phantom simulating hard and soft tissue of a first vertebrate organism. The method includes the steps of removing a hard tissue from a second vertebrate organism and covering at least a portion thereof with a material. Also disclosed is a method of testing an ultrasonic diagnostic system. The method includes the steps of transmitting a train of ultrasonic energy towards a phantom of the present invention, receiving a portion of the train of ultrasonic energy and analyzing the received portion.Type: ApplicationFiled: May 16, 2001Publication date: November 21, 2002Applicant: MEDSON LTD.Inventors: Garri Passi, Asaf Ben-Arye, Shmuel Douvdevani, Alon Eitan
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Publication number: 20020170340Abstract: A chamber for a high vacuum system is provided. The chamber is tested by a leakage tester, and comprises a body and an intermediate unit. The body is provided with at least one port. The intermediate unit, disposed on the body, connects with the port in order to communicate with the leakage tester. When the chamber is to be tested by the leakage tester, it can be directly connected with the leakage tester through the intermediate unit. Leakage testing of the chamber is thus simplified and rendered considerably more efficient.Type: ApplicationFiled: August 1, 2001Publication date: November 21, 2002Inventors: Bruse Lee, Ching Shun Fan, Thanku Shieh, Hsien Hsiang Lin
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Publication number: 20020170341Abstract: A system for measuring the properties of liquids, in particular, for measuring the viscosity of a liquid, includes a piezoelectric sensor device, which is completely immersed in liquid and has electric contact points for an electric control which are resistant with regard to the liquid. The piezoelectric sensor device includes electric lead conductors, which are resistant with regard to the liquid and are connectable to an electronic control/analyzer unit outside of liquid and to contact points within the sensor device by a suitable conductive adhesive containing metal particles.Type: ApplicationFiled: March 15, 2002Publication date: November 21, 2002Inventors: Bernhard Jakoby, Kurt Weiblen, Volker Brielmann
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Publication number: 20020170342Abstract: A flowmeter for accurately measuring the flowrate of fluids in high pressure chromatography systems. The flowmeter is a porous bed of a material, the porous bed having a porosity in the range of about 0.1 to 0.6 and a pore size in the range of about 50 nm to 1 &mgr;m, disposed between a high pressure pumping means and a chromatography column. The flowmeter is provided with pressure measuring means at both the inlet and outlet of the porous bed for measuring the pressure drop through the porous bed. This flowmeter system provides not only the ability to measure accurately flowrates in the range of &mgr;L/min to nL/min but also to provide a signal that can be used for a servo loop or feedback control system for high pressure pumping systems.Type: ApplicationFiled: May 23, 2002Publication date: November 21, 2002Inventors: Phillip H. Paul, Don W. Arnold
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Publication number: 20020170343Abstract: An on-line moisture analyzer and method of analyzing the moisture content of an ore concentrate. A sample conveyor moves a sample of the concentrate to be analyzed to an aluminum pan that receives and holds the sample of the concentrate. A horizontal linear slide having a pneumatic vertical lift mounted to rotary arm is detachably connected to the aluminum pan by gripping fingers that detachably engage the pan. A scale is accessible by the conveyance member for weighing the sample. An oven also accessible by the conveyance member has a door that has a complimentary shape relative to a cross section of the sample container and conveyance member is used for heating the sample. A programmable logic controller controls the conveyance member and the oven door. A data processing unit receives data from the scale and determines a moisture content based on the data.Type: ApplicationFiled: May 15, 2001Publication date: November 21, 2002Applicant: CLIFFS MINING SERVICES COMPANYInventor: David William Hendrickson
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Publication number: 20020170344Abstract: A test stand for testing an exhaust system for a vehicle is disclosed. The test stand has a engine block having a number of cylinders. The engine block is an engine head which defines exhaust ports to couple the engine block cylinders to the exhaust system. The engine cylinder has a coupled input plenum which is coupled to the lower access port. Each input plenum has a separate burner assembly which is coupled to a fuel source. Disposed between the fuel source and the burner assembly is a valve set which is capable of adjusting the amount of fuel inserted into the input plenums. A controller is provided which adjusts the amount of fuel into the input plenums.Type: ApplicationFiled: May 21, 2001Publication date: November 21, 2002Inventor: Steven Pallozzi
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Publication number: 20020170345Abstract: A method for sampling a sensor that receives a pressure signal, the pressure signal being used as a basis for a pressure signal-based cylinder charge calculation for calculating the fresh-gas charge of cylinders of an internal combustion engine. At the instant at which an intake valve closes at a respective cylinder of the internal combustion engine, the pressure signal is received multiple times in succession in a sampling sequence of individual impulses.Type: ApplicationFiled: June 3, 2002Publication date: November 21, 2002Inventor: Manfred Pfitz
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Publication number: 20020170346Abstract: A section where a piston of a four cycle internal combustion engine makes one rotation from a position reaching a top dead point to a next top dead point is taken as a determination object section, and an output of a pressure sensor for detecting an intake air pressure of the internal combustion engine is sampled. A maximum value of an inclination of a change in the intake air pressure in the process of increasing an absolute value of the intake air pressure sampled in each determination object section is found and, when the maximum value of the inclination of the change in the intake air pressure found in each determination object section is larger than the maximum value of the inclination of the change in the intake air pressure found in the determination object section which is one section before each determination object section, each determination object section is determined to be a section where the intake stroke and the compression stroke are performed.Type: ApplicationFiled: May 14, 2002Publication date: November 21, 2002Inventor: Akira Shimoyama
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Publication number: 20020170347Abstract: A system for identifying the time remaining for a bottled gas supply to lapse. Such bottled gas supplies include those used for gas grilles, scuba, nitrogen for electron microscopes, and any other environment in which a bottled gas is used. The system reads the pressure and optionally the temperature of the gas container, the readings of which are read by a microprocessor, optionally first pre-processed in a conversion module, and converted into a display for the user identifying the time during which the gas contents remaining will last. In various systems, it may be desirable to program the microprocessor, such as with input from a keyboard and/or cd-rom, with parameters regards specifics of the gas or the container, or to simply processing by assuming a certain temperate correlation and thereby elinimate the need for a temperature transducer.Type: ApplicationFiled: May 6, 2002Publication date: November 21, 2002Inventors: James R. Stabile, William I. Mack
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Publication number: 20020170348Abstract: A logging tool includes an elongated body housing a neutron source and at least one neutron detector positioned along one side of the neutron source. Some embodiments of the logging tool include at least one gamma ray detector longitudinally separated from and to one end of the neutron source, and may be used to make simultaneous gamma ray and neutron logging measurements. In some embodiments, the logging tool also includes a (n, 2n)-neutron shield positioned to one end of the neutron detector, longitudinally between the neutron detector and the neutron source.Type: ApplicationFiled: May 18, 2001Publication date: November 21, 2002Inventors: Bradley A. Roscoe, Charles R. Case
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Publication number: 20020170349Abstract: A method for monitoring the performance of internal pumps in a plant in which a coolant is driven through plural internal pumps, said method comprising measuring the pump motor power input to the motor driving said pump; estimating the power input to said pump motor during a test performed outside said plant corresponding to the pump speed and the pump flow measured within said plant; computing a pump motor input power ratio based on said measured value and said estimated value; and detecting the variation in the performance of said internal pumps.Type: ApplicationFiled: August 31, 2001Publication date: November 21, 2002Inventors: Hideo Soneda, Kenichi Yasuda, Kumiaki Moriya
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Publication number: 20020170350Abstract: A method and system for determining the effect of precipitation on flow within a sewer network includes identifying a modeled response of the sewer to a precipitation event. Once the modeled response is identified, scaled responses to future precipitation events may be predicted, in real time, by measuring intervals of the precipitation event and calculating the scaled response as a function of the modeled response and the precipitation quantity measured during the precipitation event.Type: ApplicationFiled: May 18, 2001Publication date: November 21, 2002Inventor: James S. Schutzbach
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Publication number: 20020170351Abstract: The invention relates to a flow divider (20) and a process for dividing a fluid flow (30) into a number of fluid flows (31, 32), in particular in analytical and/or preparative fluid measurement technology and/or in micro-fluid systems. The flow divider (20) exhibits at least one working sensor (41, 42), which is assigned to one of the fluid flows (31, 32) and which comprises a control unit (55) for regulating the pressure of one of the fluid flows (31, 32) and/or for regulating one of the fluid flows (31, 32), which is coupled to the or each working sensor (41, 42) and an actuator (51) for changing this fluid flow (31). At least a number of working sensors (41, 42) corresponding to the number of divided fluid flows (31, 32) is provided, whereby respectively at least one of the working sensors (41, 42) is assigned to one of the fluid flows (31, 32) and whereby the working sensors (41, 42) enable recording of the respective fluid flow (31, 32).Type: ApplicationFiled: December 7, 2001Publication date: November 21, 2002Applicant: Agilent Technologies, Inc.Inventors: Hans-Peter Zimmerman, Claus Lueth
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Publication number: 20020170352Abstract: The invention provides a flow rate detector capable of precisely detecting a flow rate of an object fluid and effectively reducing a leaning error even when the object fluid is pulsating, thereby improving precision in detection of flow rate. The flow rate detector comprises a flow detector 50 for outputting a flow-detecting signal Sf according to a flow rate of the object fluid utilizing heat transfer phenomenon from an exothermic resistor 12 disposed in a fluid passage to the object fluid, and a gain compensator 60 for compensating an error in a flow-detecting signal Sf by amplifying the flow-detecting signal Sf from the flow detector 50, wherein the gain compensator 60 is arranged to amplify the flow-detecting signal Sf by a substantially constant alternating current gain G3 larger than a direct current gain G1 at the time of zero frequency, in a frequency range higher than a frequency f2A corresponding to the minimum pulsating frequency of the object fluid.Type: ApplicationFiled: October 24, 2001Publication date: November 21, 2002Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Koji Tanimoto, Shinji Taniguchi, Tomoya Yamakawa, Ryuji Toyama
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Publication number: 20020170353Abstract: A liquid detection device attached on a liquid container for detecting a liquid consumption status of the liquid contained in the liquid container, the liquid detection device including a vibrating section symmetrical about a center thereof, and at least one electrode electrically connecting with said vibrating section.Type: ApplicationFiled: July 10, 2002Publication date: November 21, 2002Applicant: SEIKO EPSON CORPORATIONInventors: Minoru Usui, Kenji Tsukada, Munehide Kanaya