Patents Issued in March 6, 2003
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Publication number: 20030041614Abstract: A high capacity, continuous production blast freezer includes an insulated enclosure and a plurality of adjustable product-carrying trolleys, individually moveable with the enclosure from an entrance location to an exit location. A heat exchanger in the form of an evaporator is provided in the enclosure. The mechanical equipment for the refrigeration system can be placed within the enclosure and separated from the freezing cell by a bulkhead. In one embodiment the enclosure is in the form of a container adapted to be transportable by ship, rail or truck. The arrangement of the heat exchanger or evaporator relative to the product carrying devices and the enclosure is designed to maximize the capacity of the heat exchanger and minimize frost formation, while providing for a maximum amount of product space within the enclosure to maximize throughput of the system.Type: ApplicationFiled: August 27, 2002Publication date: March 6, 2003Applicant: Integrated Marine Systems, Inc.Inventor: Mark Burn
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Publication number: 20030041615Abstract: A cooling air supply apparatus includes: a blowing fan attached at a rear wall face of a freezing chamber and forcefully circulating air cooled while passing an evaporator of a freezing cycle; a supply passage formed at a barrier partitioning the freezing chamber and a cooling chamber and supplying cooling air ventilated from the blowing fan to the cooling chamber; a rear guide passage branched from the cooling air passage and guiding cooling air backwardly of the cooling chamber; a right guide passage branched from the cooling air supply passage and guiding cooling air rightwardly of the cooling chamber; and a left guide passage branched from the cooling air supply passage, having the same diameter as that of the right guide passage and guiding cooling air leftwardly of the cooling chamber.Type: ApplicationFiled: January 3, 2002Publication date: March 6, 2003Applicant: LG ELECTRONICS INC.Inventors: Sang Bae Kim, Young Seok Choi, Byung Gyu Kang
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Publication number: 20030041616Abstract: A cooling air circulating device of a refrigerator is provided. According to the cooling air circulating device, it is possible to impartially cool a chilling chamber and to make the spread of temperature of the chilling chamber uniform by letting cooling air sucked up into the respective cells divided by shelves of the chilling chamber. Also, it is possible to rapidly cool the chilling chamber and to reduce time for cooling the chilling chamber by minimizing time, for which the cooling air whose temperature has risen above a predetermined temperature stays in the chilling chamber.Type: ApplicationFiled: January 7, 2002Publication date: March 6, 2003Applicant: LG ELECTRONICS INC.Inventors: Sang Bae Kim, Young Seok Choi, Byung Gyu Kang
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Publication number: 20030041617Abstract: A cooling system is provided for a vehicle that includes an air-cooled coolant radiator and air-cooled gas cooler to cool a gas flow of a CO2 type air conditioning system of the vehicle. The cooling system includes a pre-cooler for pre-cooling of the refrigerant by transferring heat from the refrigerant either to the coolant flowing through the radiator or to a cooling air flow passing through the radiator, or both.Type: ApplicationFiled: July 29, 2002Publication date: March 6, 2003Applicant: Modine Manufacturing CompanyInventors: Frank Vetter, Mark Reichler, Daniela Welchler
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Publication number: 20030041618Abstract: A beverage container including a body and a lower cap having a cooling element mounted thereon that extends into an interior portion of the body. The lower cap is removable for convenient charging (e.g., freezing) of the cooling element. The lower cap is then attached to the body and liquid is inserted into the body through an upper opening. A mixing fixture is integrally formed on the free end of the cooling element, and is used to mix the cooled liquid stored in the body with a powdered substance entered through the upper opening. In one embodiment, the beverage container is a multi-chambered container that includes a rotatable hollow member for storing the powdered substance, and a housing for securing the hollow member to the body such that a curved wall of the hollow member separates the powdered substance from the cooled liquid stored in the body.Type: ApplicationFiled: August 28, 2001Publication date: March 6, 2003Inventor: James W. Holley
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Publication number: 20030041619Abstract: The present invention related to an apparatus, in particular an integrated gas dehydrator, comprising an integrated dehydrator processing unit and a refrigeration unit for efficient and cost-effective removal of moisture in a variety of gases, in particular the natural gas.Type: ApplicationFiled: March 14, 2002Publication date: March 6, 2003Inventor: Yingzhong Lu
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Publication number: 20030041620Abstract: A non-rectangular multistone piece of jewelry is formed by a single generally rectangular cut center stone having four major sides, four truncated pie-shaped side stones, and a setting. Each side stone defines an arcuate side and an opposed truncated side, the arcuate side facing outwardly from the center stone and the truncated side facing inwardly toward the center stone.Type: ApplicationFiled: August 30, 2001Publication date: March 6, 2003Inventor: Martin Gruber
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Publication number: 20030041621Abstract: A piece of piercing jewelry adapted to be placed around a pierced body part, such as a nipple, includes a jewelry part (1) of resilient material and a piercing rod (2) arranged on the rear side of the jewelry part (1).One end of the piercing rod (2) is pivotally mounted (3) in one side of the jewelry part (1), whereas the opposite free end of said piercing rod is capable of engaging a locking means in the opposite side of said jewelry part. The locking means is formed by a transverse recess (6) provided in the jewelry part (1), the cross section of said locking means substantially corresponding to the cross section of the piercing rod (2).Type: ApplicationFiled: August 27, 2002Publication date: March 6, 2003Inventor: Anita Yvonne Kronvold
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Publication number: 20030041622Abstract: Setting, in particular for decorative stones made of cut glass, made of stamped sheet metal, which receives the decorative stone in the manner of a cup, wherein the setting surrounds the stone in the area of its greatest diameter in the manner of a channel, and wherein at least the upper edge (3) of the setting (2) clasping the decorative stone (1) has a reduced metal sheet thickness.Type: ApplicationFiled: August 21, 2002Publication date: March 6, 2003Inventor: Markus Lampe
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Publication number: 20030041623Abstract: In order to provide a quartz glass crucible distinguished by high purity, high opacity and/or low transmissibility in the IR spectrum, it is proposed on the basis of a known quartz glass crucible of opaque quartz glass with a crucible body symmetrical in relation to a rotational axis, an outer zone (3) of opaque quartz glass transitioning radially toward the inside into an inner zone (2) of transparent quartz glass and with a density of at least 2.15 g/cm3, that according to the invention, the crucible body (1) be made of a synthetic SiO2 granulate with a specific BET surface ranging from 0.5 m2/g to 40 m2/g, a tamped volume of at least 0.8 g/cm3 and produced from at least partially porous agglomerates of SiO2 primary particles.Type: ApplicationFiled: August 16, 2001Publication date: March 6, 2003Inventors: Waltraud Werdecker, Johann Leist
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Publication number: 20030041624Abstract: A method of making an optical waveguide structure having improved thermal isolation and stress reduction. The method etches both deep trenches and shallow trenches in a single step. The method includes the step of depositing a partial top clad layer over a first and second waveguide core. An etch back is then performed on the partial top clad layer to obtain a desired thickness of the partial top clad layer. A first hard mask layer is subsequently deposited over the partial top clad layer. A set of hard masks are then formed over the first and second waveguide cores by patterning and etching the first hard mask layer. A full top clad layer is then deposited over the partial top clad layer and the set hard masks to form a top clad. A second hard mask layer is then deposited over the top clad. A deep trench area and first and second shallow trench areas are then exposed by patterning and etching the second hard mask layer.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Inventor: Jongik Won
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Publication number: 20030041625Abstract: Reinforced fiber insulation is formed by depositing a mixture of textile fiber segments and rotary and/or flame attenuated segments on a surface, mixing a binder with the fibers, and heating the binder to join the fibers together. The low cost process provides a mixed fiber insulation product with improved strength after compression.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Applicant: CERTAINTEED CORPORATIONInventors: John O. Ruid, Kurt Mankell, Alain Yang, Wayne Shaw
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Publication number: 20030041626Abstract: An insulation product contains a mixed layer of textile fibers and of rotary and/or flame attenuated fibers. A process for manufacturing the insulation product includes passing fibrous bundles of textile fibers and of rotary and/or flame attenuated fibers together through an apparatus that divides the textile fibers into segments and that mixes the textile fiber segments with the rotary and/or flame attenuated fibers. The bundles of rotary and/or flame attenuated fibers can be in the form of specially manufactured mats and/or can be production scraps. The resulting mixture of fibers is formed into a non-woven batt, mat, blanket, or board. The process provides a mixed fiber product, with an improved combination of thermal and acoustic insulating performance and adequate strength, at a low production cost.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Applicant: CERTAINTEED CORPORATIONInventors: Alain Yang, Gary Tripp
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Publication number: 20030041627Abstract: A screen comprises an electrically conductive elongate inner screen plate. The inner screen plate has at least one elongate fold therein and at least two elongate divergent surfaces on opposing sides of the fold. Each divergent surface has an upper end and opposing edges tapering downward from the upper end. The upper ends of the divergent surfaces diverge from one another. Each of the divergent surfaces has a plurality of holes therein. The screen further comprises at least two electrically conductive outer screen plates. The outer screen plates are attached to the edges of the divergent surfaces and extend between the divergent surfaces. Each of the outer screen plates has a plurality of holes therein. Another embodiment of the invention is directed toward a glass fiber bushing system comprising a bushing body and a screen within the bushing body. The bushing body has opposing end plates. The screen comprises opposing ends. Each of the ends has an upper portion and a lower portion.Type: ApplicationFiled: August 28, 2001Publication date: March 6, 2003Inventors: Timothy A. Sullivan, Byron L. Bemis, Seshadri Srinivasan
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Publication number: 20030041628Abstract: Furnace assemblies are provided including a furnace defining an internal process chamber extending therethrough. A first gas screen is coupled to the furnace. The first gas screen is configured to introduce a first gas into the internal process chamber at a first end of the furnace. A second gas screen is positioned adjacent to the first gas screen at an opposite end of the first gas screen from the furnace. The second gas screen is configured to introduce a second gas to provide a seal for the first end of the furnace. The furnace may be a draw furnace and the process chamber may be an internal draw chamber.Type: ApplicationFiled: September 5, 2001Publication date: March 6, 2003Inventors: Lindwood A. Bird, John M. Jewell, David G. Surratt, Zhenming Wu
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Publication number: 20030041629Abstract: A door boot for an appliance is positioned within the access opening of the appliance. A door is movable to a closed position cooperating with the door boot to seal the interior of the appliance cabinet. A relief groove is provided in the door boot which provides flexibility when the door is moved to its open position, and thereby reduces the force necessary to break the seal during opening of the door. The relief groove forms a flexible hinge.Type: ApplicationFiled: August 30, 2001Publication date: March 6, 2003Inventor: Michael L. Wright
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Publication number: 20030041630Abstract: This disclosure relates to a rekeyable tubular lock cylinder with a core. The core includes a first core piece having locking pin openings and a second core piece having replaceable pin openings. An outer sleeve is mounted over the first and second core pieces. The outer sleeve includes a sleeve end face defining a circular opening coaxially aligned with a hub portion of the second core piece. The sleeve end face and the hub portion cooperate to define an annular keyway. The second core piece is rotatable between a first position where the key receiving notch of the hub portion aligns with a first outer notch of the outer sleeve, and a second position where the key receiving notch of the hub portion aligns with the second outer notch.Type: ApplicationFiled: August 31, 2001Publication date: March 6, 2003Inventors: Daniel A. Laitala, Grant T. Laitala, Thomas R. Laitala
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Publication number: 20030041631Abstract: A security device for portable computer is disclosed. The security device comprises an anchor attached securely to the portable computer. The device also includes a lock box that makes use of a channel, wherein the channel is open at each end and is selectively openable laterally. The device further includes a cord that couples the anchor and the lock box.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Inventor: Memphis Zhihong Yin
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Publication number: 20030041632Abstract: An improvement to Del Nin's security locking device outlined by U.S. Patent No. 5,983,680 issued Nov. 16, 1999 is described wherein the improvement comprises of new gearing arrangement and vertical deadbolt design so as to strengthen the device's vulnerability to forced breakage, and so that such locking device may operate on doors opening from either left or right sides of its door frame. This improved vertical deadbolt design additionally replaces need for any spring-like mechanisms prone to attack and vulnerable to wear and tear, with more sturdy bayonette latch mechanism resulting in solid precision control over deadbolt's vertical movement.Type: ApplicationFiled: August 16, 2001Publication date: March 6, 2003Inventor: Lou F. Del Nin
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Publication number: 20030041633Abstract: A reinforcing bracket for a door lock. The reinforcing bracket has a recess in its interior side adapted to receive, at least partially surround, and support the bolt body of the bolt assembly of the lock. The reinforcing bracket also has a central opening extending therethrough to receive the cylinder plug cap of the cylinder assembly of the lock.Type: ApplicationFiled: August 30, 2002Publication date: March 6, 2003Inventors: Eric A. Britz, David A. Ebert
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Publication number: 20030041634Abstract: An anti-theft device for preventing unauthorized release of the air brakes on a vehicle includes a lockable button for the valve stem for the control valve. The lockable button includes a button body, a coupling member, and a lock assembly having a latch member that selectively inserts into an annular groove on the coupling member. The coupling member is secured to move axially with the axially movable valve stem of the air brake control valve. The latch member extends into the annular groove on the coupling member to position the button body so as to limit the axial movement of the valve stem and thereby prevent the release of the air brakes.Type: ApplicationFiled: September 6, 2001Publication date: March 6, 2003Inventors: Randy M. Lenz, Jeff M. Grote
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Publication number: 20030041635Abstract: A steering locking device has an annular clearance provided between a steering shaft and a collar surrounding the steering shaft. A spacer is press-fitted in the annular clearance, to form a circular arc shape surrounding the steering shaft. The spacer is wound around the steering shaft from the outside of the collar through the opening of the collar.Type: ApplicationFiled: August 30, 2002Publication date: March 6, 2003Inventors: Etsurou Kitami, Tomohiro Maekawa, Terukazu Nakajima, Takaya Akiyama
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Publication number: 20030041636Abstract: A cylindrical lock arrangement of the kind having a cylindrical housing attached to a door and a lock cylinder with lever tumblers provided to cooperate with a lock device, whereby the lock device is arranged to be actuated via a carrier provided to the cylinder lock. The invention has a connection device for transmission of force from the lock cylinder to the carrier is provided to be axially displaced in relation to the lock cylinder from a neutral position and in direction towards this during rotation of the lock cylinder with a fitting key. The connection device is provided to be brought to an active position in friction engagement with the carrier not until after the axial displacement from the neutral position, after which locking and unlocking respectively of the lock device is performed by further rotation of the lock cylinder by means of the key.Type: ApplicationFiled: June 7, 2001Publication date: March 6, 2003Inventors: Stig Hermansson, Helmut Ponn
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Publication number: 20030041637Abstract: A lock core rotatable in a housing is formed with an axially extending key passage, transverse guide slots, and an axially inwardly open bore. A bolt displaceable in the bore between a locked position and a unlocked position has radially open grooves aligned with the slots in the locked position. The inner bolt end can directly engage in an inwardly open seat formed in the housing or with a ball engageable in such a seat to lock the core in the housing. Tumbler plates in the slots are formed with control edges and holes alignable with the bore in a freeing position. The plate are displaceable into blocking positions with the holes offset at least partially from the bore and engaging in the respective grooves. A key has a plurality of respective bit notches engageable with the control edges on engagement of the key in the passage.Type: ApplicationFiled: August 27, 2002Publication date: March 6, 2003Applicant: EVVA-Werk Spezialerzeugung von Zylinder - und Sicherheitsschlossern Gesellschaft m.b.H. & Co.KGInventors: Kurt Prunbauer, Reinhard Amon
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Publication number: 20030041638Abstract: A method of making a landscaping mulch, using as its primary ingredient, spent stable bedding which has its primary ingredient ripe de bois softwood shavings. The result of the method is a mulch, particularly for landscaping applications, having a relatively high pH value, between 6.5 and 7.5, which is also useful for neutralizing the effects of acid rain.Type: ApplicationFiled: October 24, 2002Publication date: March 6, 2003Inventors: Brent Lamour, Shawn Goff
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Publication number: 20030041639Abstract: The invention relates to a soil conditioner comprising a mixture of an aqueous solution manufactured with constant stirring of sodium hydroxide, acetic acid and 1,2,3-propanetriol and an aqueous solution produced under constant stirring from saccharose, potassium hydrogentartrate and acetic acid.Type: ApplicationFiled: July 30, 2002Publication date: March 6, 2003Inventors: Dieter Meyer, Hans-Peter Braun
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Publication number: 20030041640Abstract: Slow production speeds in the manufacture of lanced and offset fins for use in heat exchanger tubes are eliminated through the use of a method of forming the fins involving a plurality of roll assemblies located along a forming path which may operate on a strip of fin forming material of indeterminate length. After being formed, the fin may be cut to any desired length.Type: ApplicationFiled: August 23, 2001Publication date: March 6, 2003Inventor: Dennis C. Granetzke
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Publication number: 20030041641Abstract: A bending head for bending of metallic hollow profile strips (2) in the production of spacer frames for insulating glass panes has a bending abutment (5) and a bending cheek (7). The bending abutment (5) can be placed by swivelling against one side of the section of the hollow profile strip (2) to be bent, conversely the bending cheek (7) can be placed from the outside against the hollow profile strip (2). In the execution of the bending process the bending abutment (5) and the bending cheek (7) are moved at the same time and hold the section of the hollow profile strip (2) to be bent between themselves.Type: ApplicationFiled: August 28, 2001Publication date: March 6, 2003Inventor: Peter Lisec
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Publication number: 20030041642Abstract: In a forming press, a die comprises a pair of half-dies, supported by a bed, able in turn to support an element to be deformed permanently in opposition to the thrust exerted by a forming punch. The die is provided, for each of the half-dies, with two racks associated to the respective half-die and to the bed, which are provided with at least a pair of oblique teeth, set side by side, and associated in mutual opposition with teeth of the one inserted between the teeth of the other. The teeth of the conjugate racks are mutually coupled simultaneously on at least two parallel and oblique contact planes, and mesh in a manner able to determine the variation of the distance between the half-dies in correspondence with the relative translation of the racks effected longitudinally to the half-dies themselves.Type: ApplicationFiled: August 27, 2002Publication date: March 6, 2003Inventor: Fabrizio Paoletti
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Publication number: 20030041643Abstract: An adjustment stroke connection for a mechanical press includes an eccentric bushing disposed within a press connection member and an eccentric crankshaft member disposed within the eccentric bushing. A rotatable crankshaft is connected to the eccentric member. A mechanism is provided for connecting the eccentric bushing with the press connection member in a manner that prevents rotation therebetween and concurrently permits rotation of the eccentric member relative to the eccentric bushing. When the mechanism is activated, driving rotation of the crankshaft produces a press stroke adjustment. A torque actuator delivers equal driving torque to plural eccentric crankshaft members to enable minimization of relative bushing angle slip. Suitable control of the bushing angle and slide position crank angle during bushing expansion and contraction also minimizes relative bushing angle slip.Type: ApplicationFiled: August 15, 2002Publication date: March 6, 2003Inventors: Wenliang Tang, John B. Bornhorst, Richard J. Oen, Charles H. Dickman, Kevin J. Evers, Ryan M. Stoltz, Joseph H. Hamberg
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Publication number: 20030041644Abstract: A hydraulic compression tool having a frame, a hydraulic fluid reservoir on the frame, a ram movably connected to the frame, a conduit system in the frame between the reservoir and the ram, a pump provided in the conduit system, a mechanical actuator provided in the conduit system for contacting the ram, and a bypass valve in the conduit system between a rear end of the ram and a channel of the conduit system to the rear end of the mechanical actuator. The conduit system is adapted to conduit fluid from the pump against both the rear end of the ram and a rear end of the mechanical actuator. The bypass valve is located, at least partially, in a housing member of the mechanical actuator.Type: ApplicationFiled: June 18, 2001Publication date: March 6, 2003Inventors: John David Lefavour, Armand Thomas Montminy
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Publication number: 20030041645Abstract: A test device and method for drawing a vacuum relative to an ambient environment. The device includes a member defining a passage, a valve, and a fluid communication conduit. The passage extends between a first end and a second end, and includes a constriction defining an orifice. The first end is in fluid communication with an ambient environment. The valve has a first port and a second port. The first port is adapted for fluid communication with a pressure source at a first pressure level. The fluid communication conduit includes a fluid communication tap at a second pressure level. The second pressure level is responsive to fluid flow through the orifice. The fluid communication conduit connects the second end of the member and the second port of the valve.Type: ApplicationFiled: September 3, 2002Publication date: March 6, 2003Applicant: Siemens VDO Automotive, IncorporatedInventors: Kevin Tetreault, John Derikx
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Publication number: 20030041646Abstract: A vacuum generating device and method include a member that defines a passage, a first valve, a second valve, a fluid communication conduit, a transducer, and a processor. The passage extends between a first end and a second end, and includes a constriction that defines an orifice. The first valve connects the first end of the member and an ambient environment, and is electrically positionable in first and second configurations. The first configuration permits generally unrestricted fluid flow between the orifice and the ambient environment, and the second configuration substantially prevents fluid flow between the orifice and the ambient environment. The second valve has a first port and a second port. The first port is adapted for fluid communication with a pressure source at a first pressure level. The second valve is electronically adjustable. The fluid communication conduit connects the second end of the member and the second port of the second valve.Type: ApplicationFiled: September 3, 2002Publication date: March 6, 2003Applicant: Siemens VDO Automotive, IncorporatedInventors: Kevin Tetreault, John Derikx
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Publication number: 20030041647Abstract: A vacuum generating device and method include a member defining a passage, a first valve, a second valve, and a fluid communication conduit. The passage extends between a first end and a second end, and includes a constriction defining an orifice. The first valve connects the first end of the member and an ambient environment. The first valve is adjustable between first and second configurations. The first configuration permits generally unrestricted fluid flow between the orifice and the ambient environment. The second configuration substantially prevents fluid flow between the orifice and the ambient environment. The second valve has a first port and a second port. The first port is adapted for fluid communication with a pressure source at a first pressure level. The fluid communication conduit connects the second end of the member and the second port of the second valve. The fluid communication conduit includes a fluid communication tap at a second pressure level.Type: ApplicationFiled: September 3, 2002Publication date: March 6, 2003Applicant: Siemens VDO Automotive, IncorporatedInventors: Kevin Tetreault, John Derikx
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Process and device for measuring the concentrations of a plurality of gas components in a gas sample
Publication number: 20030041648Abstract: A process and device measures and checks concentration values of a plurality of gas components in a gas sample. The distortion of the measuring results by temperature and moisture effects, contamination as well as cross sensitivity and drift phenomena of the sensors of the gas-measuring device is a frequent problem in the measurement of gases by means of a gas-measuring device. It is possible with the process to recognize implausible measuring results as such on the gas-measuring device without design measures. This is achieved by the evaluation of data of suitably selected calibrating gases, from which a subvector space is constructed in the vector space of all possible measurement data (s1, s2, s3), represented as a plane (E), and a corresponding tolerance range is constructed. If the data (*) determined later during a measurement, are in the tolerance range, they are classified as plausible, and otherwise as implausible. The subvector space is constructed, e.g.Type: ApplicationFiled: June 13, 2002Publication date: March 6, 2003Inventors: Michael Hackenberg, Matthias Studer -
Publication number: 20030041649Abstract: A micro electromechanical system (MEMS) broad band incandescent light source includes three layers: a top transmission window layer; a middle filament mount layer; and a bottom reflector layer. A tungsten filament with a spiral geometry is positioned over a hole in the middle layer. A portion of the broad band light from the heated filament is reflective off the bottom layer. Light from the filament and the reflected light of the filament are transmitted through the transmission window. The light source may operate at temperatures of 2500 K or above. The light source may be incorporated into an on board calibrator (OBC) for a spectrometer.Type: ApplicationFiled: October 18, 2002Publication date: March 6, 2003Applicant: California Institute of TechnologyInventors: Thomas George, Eric Jones, Margaret L. Tuma, Michael Eastwood, Richard Hansler
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Publication number: 20030041650Abstract: A sensor probe and method of use for determining the temperature, velocity, and/or liquid volumetric fraction of gas laden with droplets. In one variation, the probe includes a single heating element used in a well-characterized flow. The heating element is maintained above the Leidenfrost transition for the droplets, which prevents cooling effects from the droplets from impacting the temperature measurement. In another variation, the probe includes two or more heating elements arranged in similar flow environments. The property of interest is derived by relying on thermodynamic and heat transfer principles, which are not usable in conjunction with conventional devices.Type: ApplicationFiled: March 22, 2002Publication date: March 6, 2003Inventors: Marino Dimarzo, Paolo Ruffino
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Publication number: 20030041651Abstract: There is described herein a method and a device for determining leaks at the seal of a valve or a valve rod, in particular of a process valve so that an indication that the valve-rod seal needs changing can then be obtained in good time. In order to determine the leak, the pressure is determined, if appropriate as a function of time, in a control volume between a first valve-rod seal and a second valve-rod seal, and the leak flow rate is calculated therefrom.Type: ApplicationFiled: December 13, 2001Publication date: March 6, 2003Inventors: Juergen Krieger, Thomas Georg Karte, Andreas Elting
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Publication number: 20030041652Abstract: Microfluidic devices, systems, and methods measure viscosity, flow times, and/or pressures. other flow characteristics within the channels, and the measured flow characteristics can be used to generate a desired flow. Multi-reservoir pressure modulator and pressure controller systems, electrokinetic systems and/or other fluid transport mechanisms can generate the flow, controllably mix fluids, and the like.Type: ApplicationFiled: July 26, 2002Publication date: March 6, 2003Applicant: Caliper Technologies Corp.Inventors: Michael Spaid, Andrea W. Chow, Benjamin N. Wang, Ring-Ling Chien, J. Wallace Parce, Anne R. Kopf-Sill, Josh Molho, Anubhav Tripathi, Matthew B. Kerby
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Publication number: 20030041653Abstract: A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a thickness shear mode resonator or a tuning fork resonator, connected to a measurement circuit. The measurement circuit provides a variable frequency input signal to the tuning fork, causing the mechanical resonator to oscillate. To test the properties of a liquid composition, the mechanical resonator is placed inside a sample well containing a small amount of the liquid. The input signal is then sent to the mechanical resonator and swept over a selected frequency range, preferably less than 1 MHz to prevent the liquid being tested from exhibiting gel-like characteristics and causing false readings. The mechanical resonator's response over the frequency range depends on various characteristics of the liquid being tested, such as the temperature, viscosity, and other physical properties.Type: ApplicationFiled: October 7, 2002Publication date: March 6, 2003Applicant: Symyx Technologies, Inc.Inventors: Leonid Matsiev, James Bennett, Eric McFarland
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Publication number: 20030041654Abstract: Systems and methods of monitoring thin film deposition are described. In one aspect, a thin film deposition sensor includes an acoustical resonator (e.g., a thin film bulk acoustical resonator) that has an exposed surface and is responsive to thin film material deposits on the exposed surface. A substrate clip may be configured to attach the thin film deposition sensor to a substrate. A transceiver circuit may be configured to enable the thin film deposition sensor to be interrogated wirelessly. A method of monitoring a thin film deposition on a substrate also is described.Type: ApplicationFiled: October 7, 2002Publication date: March 6, 2003Inventors: John D. Larson, Herbert L. Ko, Richard K. Karlquist, Mark A. Hueschen, Kent W. Carey
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Publication number: 20030041655Abstract: The present invention 10 discloses a cleaning device having a base portion 14 with a peel and stick adhesive 20 underside and a clear permeable topside 22 having a color reactive substance 24 contained therein wherein the base portion 14 further includes a malleable flap 12 disposed thereon. The present invention is to be placed in areas to be cleaned such as floors, walls, counters and the like for the purpose of monitoring the efficiency of the people that will be doing the cleaning. The peel and stick adhesive base 20 will maintain the cleaning detector 10 in place and the user will put the malleable flap 12 into a substantially perpendicular position relative to the base portion 14. The malleable flap 12 will be deformed away from the substantially perpendicular position if the area proximal to the present invention 10 has been properly swept, mopped, dusted, etc.Type: ApplicationFiled: August 30, 2001Publication date: March 6, 2003Inventor: Eric Downing
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Publication number: 20030041656Abstract: An apparatus and method for detecting characteristics of a microelectronic substrate. The microelectronic substrate can have a first surface with first topographical features, such as roughness elements, and a second surface facing opposite from the first surface and having second topographical features, such as protruding conductive structures. In one embodiment, the apparatus can include a support member configured to carry the microelectronic substrate with a first portion of the first surface exposed and a second portion of the second surface exposed. The apparatus can further include a topographical feature detector positioned proximate to support member and aligned with the first portion of the first surface of the microelectronic substrate to detect characteristics, such as a roughness, of the first surface while the microelectronic substrate is carried by the support member.Type: ApplicationFiled: August 30, 2001Publication date: March 6, 2003Inventors: Chee Peng Neo, Cher Khng Victor Tan, Kian Seng Ho, Hock Chuan Tan
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Publication number: 20030041657Abstract: The cantilever of a probe-based metrology instrument such as an AFM is deflected by directing a beam of ultrasonic energy at the cantilever to apply ultrasonically generated acoustic radiation pressure to the cantilever. The energy is generated by an ultrasonic actuator such as a ZnO transducer driven by a power source such an RF signal generator. The transmitted beam preferably is shaped by focusing, collimation, or the like so that it impinges at least primarily on a region of interest of the cantilever such as the free end. The ultrasonic actuator produces a much better controlled force on the cantilever than can be achieved through the use of a traditional piezoelectric actuator and, accordingly, produces a response free of spurious effects (at least when the cantilever is operating in liquid). It also has a frequency bandwidth in the MHz range.Type: ApplicationFiled: March 12, 2002Publication date: March 6, 2003Inventor: F. Levent Degertekin
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Publication number: 20030041658Abstract: It is known that performance of actual fuel injectors tends to deviate from performance of a nominal injector as a function of rail pressure and on-time, due to such factors as machining tolerances of fuel injector components. In addition, performance characteristics of fuel injectors tend to change after they have been broken in. These changes can lead to unexpected inconsistencies with other engine components. For example, for those engines which utilize smoke limiting maps, when the injectors are not performing as expected, the injection adjustments that result from use of the smoke limiting maps can sometimes become fruitless. Therefore, the present invention includes two in-chassis strategies for evaluating fuel injector performance, including a bare acceleration test and a loaded fuel injector performance test.Type: ApplicationFiled: April 2, 2002Publication date: March 6, 2003Inventors: Scott A. Leman, William J. Rodier, Ronald D. Shinogle
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Publication number: 20030041659Abstract: An engine oil pan of the electrically conductive type in which a case grounded sensor can be mounted in a wall of the pan and in which the oil pan is grounded to one circuit and the sensor is connected to another circuit includes an insulating bushing disposed between the oil pan and case grounded sensor for electrically isolating the oil pan and sensor circuits from each other.Type: ApplicationFiled: September 4, 2001Publication date: March 6, 2003Applicant: Detroit Diesel CorporationInventors: Gary Allen Marszalek, Anthony Joseph Ruggirello
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Publication number: 20030041660Abstract: An aircraft fuel-gauging system has flowmeters at the inlet and outlet of a fuel tank. The output of the flowmeters is used to compute the height and volume either of a localised elevated region above the inlet, where fuel flows into the tank, or of a localised depressed region above the outlet where fuel flows out of the tank. Where the gauging probes are located away from the region of the inlet or outlet, the volume derived from the probes is corrected by adding the volume of the elevated region or by subtracting the volume of the depressed region. Where the gauging probes are located in the region of the inlet or outlet, the height output of the probe is corrected either by subtracting the height of the elevated region or by adding the height of the depressed region. The volume is computed from these corrected heights and further corrected by adding the volume of the elevated region or by subtracting the volume of the depressed region.Type: ApplicationFiled: August 26, 2002Publication date: March 6, 2003Inventor: Harry Atkinson
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Publication number: 20030041661Abstract: A measurement apparatus for making magnetic and gravity component measurements in a borehole, including measurements made while the apparatus is rotating about the borehole axis, comprising a magnetic field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, a gravity field component sensing device having at least two axes of sensitivity normal to the borehole axis and normal to each other, an inertial angular rotation sensing device having an axis of sensitivity along the borehole axis to sense inertial angular motion about the borehole axis, control, power and processing circuitry to operate said sensing devices and to process the outputs of said sensing devices to obtain stabilized component data in a coordinate system that does not rotate with the said measurement apparatus, communication circuitry to transmit output data to auxiliary equipment at the surface or in the borehole, and support structure to support the sensing devices.Type: ApplicationFiled: August 12, 2002Publication date: March 6, 2003Inventors: Donald H. Van Steenwyk, James N. Towle, Hans S. Fairchild
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Publication number: 20030041662Abstract: A dedicated liquid level detection method having a sensor positioned into the casing of a groundwater well. The detector is in the form of an elongated thin film sensor tape that extends along the fill length of the well casing which detects the level, thickness and volume of both groundwater and any light or dense non-aqueous phase liquid that may be present. This is accomplished through the use of a conductive and hydrostatic resistive circuit measuring the level of liquids in a groundwater well at one hundredths of foot resolution or greater. Once the elongated sensor is installed, liquid levels can be gauged from the surface. The data is stored using a battery operated hand held digital display temporarily connected at the top well section casing. Since a sensor probe is not lowered into the well, cross contamination between wells is eliminated.Type: ApplicationFiled: August 31, 2001Publication date: March 6, 2003Inventor: Christopher J. Milone
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Publication number: 20030041663Abstract: A method for screening fabric handle of an array of fabric samples (i.e., a plurality of fabric materials) comprising providing an array of at least two fabric samples, protruding the fabric samples through openings, and monitoring response of said fabric samples to the protrusions.Type: ApplicationFiled: August 24, 2001Publication date: March 6, 2003Applicant: Symyx Technologies,Inc.Inventors: Mary Beth Kossuth, Damian A. Hajduk, Paul Mansky