Patents Issued in October 2, 2001
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Patent number: 6295798Abstract: The present invention relates to a method and an apparatus for manufacturing a steel cord. A method according to the present invention comprises the steps of: combining a plurality of the steel filaments supplied from the bobbin by means of the guide rollers; applying a twist pattern to the combined filaments by rotating a pair of flyers arranged between a pair of turn rollers in the counterclockwise direction, and advancing them; applying a further twist pattern to the advanced cord by rotating another pair of flyers arranged between another pair of turn rollers in the reverse direction; stabilizing the cord by means of the overtwist; and winding the resulted cord. The method and apparatus for manufacturing the steel cord have effects that productivity can be improved up to two times or six times even with the same revolution, as compared with the manufacturing apparatus of the prior art.Type: GrantFiled: July 19, 1999Date of Patent: October 2, 2001Assignee: Hyosung CorporationInventors: Dal Hyang Bae, Yong Min Park, Ju Seok Koh
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Patent number: 6295799Abstract: A tension member for an elevator system has an aspect ratio of greater than one, where aspect ratio is defined as the ratio of tension member width w to thickness t (w/t). The increase in aspect ratio results in a reduction in the maximum rope pressure and an increased flexibility as compared to conventional elevator ropes. As a result, smaller sheaves may be used with this type of tension member. In a particular embodiment, the tension member includes a plurality of individual load carrying cords encased within a common layer of coating. The coating layer separates the individual cords and defines an engagement surface for engaging a traction sheave. The individual cords are constructed of several strands and each strand is separated from direct contact with each other strand by polymeric material. While aspect ratios of greater than one are preferred, tension members of other ratios including round also benefit from the prevention of direct contact.Type: GrantFiled: September 27, 1999Date of Patent: October 2, 2001Assignee: Otis Elevator CompanyInventor: Pedro S. Baranda
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Patent number: 6295800Abstract: In the case of an apparatus for open-end spinning, a fiber feed channel is arranged between an opening roller and a spinning rotor, which fiber feed channel tapers in a transport direction and which comprises a deflecting zone on its transport path. Immediately after the beginning of the deflecting zone, a bypass opening is provided, through which opening a part of the suction airflow transporting the fibers to the spinning rotor is drawn off. In the area of the opening roller, a bypass air inlet opening is provided additionally to support the suction airflow.Type: GrantFiled: November 9, 1999Date of Patent: October 2, 2001Inventor: Fritz Stahlecker
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Patent number: 6295801Abstract: A fuel injection system for a gas turbine engine combustor, wherein the combustor includes a dome inlet module having a plurality of flow passages formed therein and at least one cavity formed in a liner downstream of said dome inlet module. The fuel injection system includes a fuel supply and a plurality of fuel injector bars positioned circumferentially around and interfacing with the inlet dome module. The fuel injector bars are in flow communication with the fuel supply, with each of the fuel injector bars further including a body portion having an upstream end a downstream end, and a pair of sides. A plurality of injectors formed in the body portion and in flow communication with the fuel supply, whereby fuel is provided to the dome inlet module flow passages and/or the cavity through the fuel injector bars.Type: GrantFiled: December 18, 1998Date of Patent: October 2, 2001Assignee: General Electric CompanyInventors: David L. Burrus, Arthur W. Johnson
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Patent number: 6295802Abstract: An orbiting engine includes a plurality of combustion chambers (52) rigidly connected to and disposed equidistantly from a central shaft (54). The combustion chambers (52) are oriented so that exhaust gases emerge therefrom tangentially to a circle concentric with the shaft (54), thereby causing the shaft to rotate. In preferred embodiments, a centrifugal compressor (62), radially inward from the combustion chambers (52) and driven by the shaft (54), compresses air that serves to oxidize fuel injected into the combustion chambers (52).Type: GrantFiled: March 31, 1999Date of Patent: October 2, 2001Inventors: David Lior, Yeshayahu Levy
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Patent number: 6295803Abstract: A gas turbine engine (10) having a closed-loop cooling circuit (39) for transferring heat from the hot turbine section (16) to the compressed air (24) produced by the compressor section (12). The closed-loop cooling system (39) includes a heat exchanger (40) disposed in the flow path of the compressed air (24) between the outlet of the compressor section (12) and the inlet of the combustor (14). A cooling fluid (50) may be driven by a pump (52) located outside of the engine casing (53) or a pump (54) mounted on the rotor shaft (17). The cooling circuit (39) may include an orifice (60) for causing the cooling fluid (50) to change from a liquid state to a gaseous state, thereby increasing the heat transfer capacity of the cooling circuit (39).Type: GrantFiled: October 28, 1999Date of Patent: October 2, 2001Assignee: Siemens Westinghouse Power CorporationInventor: Eduardo E. Bancalari
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Patent number: 6295804Abstract: A thruster system includes a power supply and a pulse forming circuit coupled to the power supply. The pulse forming circuit includes a capacitor and first and second diodes. The positively-charged plate of the capacitor is coupled to the anode of the first diode, the negatively-charged of the capacitor is coupled to the anode of the second diode, and the cathode of the first diode is coupled to the cathode of the second diode. A low-impedance thruster is coupled in parallel to the second diode.Type: GrantFiled: October 21, 1998Date of Patent: October 2, 2001Assignee: The Board of Trustees of the University of IllinoisInventors: Rodney L. Burton, Gary Willmes
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Patent number: 6295805Abstract: An exhaust induced ejector nozzle (20) includes a convergent portion (30) and a divergent portion (34) disposed downstream from the convergent portion (30). The ejector nozzle (20) also includes an ejector (40) having an outlet (46) disposed within the divergent portion (34). The ejector (40) is operable to provide entrainment of a nacelle airflow (18) from a nacelle airflow area (44) into the divergent portion (34). The ejector nozzle (20) further includes a convergent ejector (60) extending between the convergent portion (30) and the nacelle airflow area (44). The convergent ejector (60) is operable to draw a portion of an exhaust airflow (42) into the nacelle airflow area (44) to increase a flow rate of the nacelle airflow (18).Type: GrantFiled: September 14, 2000Date of Patent: October 2, 2001Assignee: Lockheed Martin CorporationInventors: Jesse R. Lackey, Jeffrey A. Catt
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Patent number: 6295806Abstract: A method for calculating the temperature of a catalyst in a catalytic converter. The method includes the steps of determining a first catalyst temperature; determining a stabilized catalyst temperature; and using the first catalyst temperature, the stabilized catalyst temperature and an update fraction to calculate an updated catalyst temperature.Type: GrantFiled: April 5, 2000Date of Patent: October 2, 2001Assignee: DaimlerChrysler CorporationInventors: Mark J Poublon, Steven R Mazure, James J Snyder, Danny K Schuelke, Jayanthi Iyengar, Gary R Oshnock, Christopher P Thomas, James G Mazak, Andrew C Bartlett
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Patent number: 6295807Abstract: In a system for detecting deterioration of an exhaust catalyst, when a catalyst temperature exceeds 150° C., the changing widths of the output voltage of an oxygen sensor downstream of the catalyst are integrated for a predetermined sampling period to determine data &Sgr;V reflecting the amount of purified gas component, and the deviation of the air/fuel ratio detected by an air/fuel ratio sensor upstream of the catalyst, and a target A/F and an exhaust gas flow rate or an intake flow rate are multiplied so that data &Sgr;A/F&Circlesolid;Q of the fluctuation of the gas component flowing into the catalyst are determined by integrating the multiplied values. At the instant when the catalyst temperature reaches 550° C., the data &Sgr;V, as integrated till then, are compared with a deterioration determining value, as set according to the data &Sgr;A/F&Circlesolid;Q, to determine whether the catalyst is deteriorated.Type: GrantFiled: May 4, 2000Date of Patent: October 2, 2001Assignee: Denso CorporationInventors: Hisayo Douta, Masaaki Nakayama, Yasuo Mukai
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Patent number: 6295808Abstract: A method for determining if the driveability index of a fuel being consumed by an internal combustion engine differs from the driveability index of a fuel for which the air-to-fuel ratio of the engine is preset. The method includes the steps of: determining the speed of the engine; determining the load on the engine; determining the actual exhaust gas temperature of the engine; and computing a predicted exhaust gas temperature based on the speed, the load and the preset air-to-fuel ratio of the engine. The actual exhaust gas temperature is compared to the predicted exhaust gas temperature to determine if the difference between the actual exhaust gas temperature and the predicted exhaust gas temperature exceeds a predetermined value.Type: GrantFiled: March 20, 2000Date of Patent: October 2, 2001Assignee: Hereaus Electro-Nite International N.V.Inventors: Joseph R. Griffin, Todd Ferguson
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Patent number: 6295809Abstract: A reductant injection control strategy for controlling an amount of nitrogen oxide reducing agent injected upstream of a selective reduction catalyst uses an ammonia sensor located downstream of the catalyst. An open loop injection quantity is first determined based on operation conditions. Ammonia concentration detected downstream of the catalyst is controlled to a desired value, with the desired value based on catalyst temperature and the open loop injection quantity.Type: GrantFiled: July 12, 1999Date of Patent: October 2, 2001Assignee: Ford Global Technologies, Inc.Inventors: Robert Henry Hammerle, Karen Marie Adams, Paul Matthew Laing
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Patent number: 6295810Abstract: A hydrostatic drive system with an adjustable pump in the delivery flow has at least one consuming device connected to the pump. Associated with each consuming device are actuation devices that specify the direction of movement and the speed of movement. A control valve device controls the direction of movement and the speed of movement. The delivery flow of the pump can be adjusted to the hydraulic flow required by the actuated consuming devices. The hydrostatic drive system makes possible the operation of the consuming devices independently of the load and the operation of the consuming devices independently of the direction of the load, in a simple manner and with lower energy losses. Associated with each consuming device is a delivery flow sensor that measures the hydraulic flow discharged from the consuming device to a reservoir, and/or a delivery flow sensor that measures the hydraulic flow from a delivery line of the pump to the consuming device.Type: GrantFiled: July 22, 1999Date of Patent: October 2, 2001Assignee: Linde AktiengesellschaftInventors: Alfred Langen, Horst Deininger
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Patent number: 6295811Abstract: This invention relates to a valve device for at least one hydraulic motor adapted to drive a high inertia mass. The device comprises two principal conduits, respectively intended to be connected to the two principal ducts (supply or exhaust) of the motor. It comprises a communication conduit for placing said principal conduits in situation of communication when the fluid pressures in these conduits are substantially equal and for placing said principal conduits in a situation of isolation in which they are isolated from one another when the fluid pressures in these two conduits are different. The device further comprises delaying means adapted to limit the speed of passage between the situation of communication and the situation of isolation. The communication conduit may include a calibrated restriction. Similarly, the delaying means may include calibrated restrictions.Type: GrantFiled: March 10, 1999Date of Patent: October 2, 2001Assignee: Poclain Hydraulics IndustrieInventors: Alain Mangano, Jean-Pierre Lebrun
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Patent number: 6295812Abstract: A hydraulic jack includes a moveable base seat. A lift arm, a handle and a hydraulic driver each mounted on the base seat. The hydraulic driver is driven by the handle to push the lift arm to lift an object. The hydraulic jack has a compound piston assembly and a hydraulic driver with fluid paths by which the jack can adjust the lift capacity so as to lift quickly and lower slowly.Type: GrantFiled: May 9, 2000Date of Patent: October 2, 2001Inventor: Kun-Shan Hsu
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Patent number: 6295813Abstract: For a hydraulically actuated device a hydraulic power cylinder with an actuator slidably received for reciprocation within the cylinder and a piston slidably received for reciprocation within a sleeve of the actuator and defining a gas chamber on one side of the piston and a hydraulic fluid chamber on the other side of the piston so that the maximum pressure in the hydraulic fluid chamber is limited as a function of the force of compressed gas in the gas chamber acting on the piston. In this way, the maximum system pressure is a function of and substantially corresponds to the pressure of the compressed gas within the gas chamber and acting on the piston. Desirably, the pressure of the compressed gas in the gas chamber can be readily changed to change the maximum hydraulic fluid pressure.Type: GrantFiled: June 3, 1999Date of Patent: October 2, 2001Assignee: Diebolt International, Inc.Inventor: Sven Stenquist
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Patent number: 6295814Abstract: An internal-combustion engine with a turbocharger is suggested, in the case of which a limiting of the exhaust gas counterpressure is provided in the braking operating mode of the internal-combustion engine.Type: GrantFiled: January 10, 2000Date of Patent: October 2, 2001Assignee: DaimlerChrysler AGInventors: Erwin Schmidt, Marco Schade, Siegfried Sumser
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Patent number: 6295815Abstract: In an internal combustion engine with exhaust gas re-circulation including a fresh air supply duct extending from the charger of a turbocharger to the engine, an exhaust pipe extending from the engine to the turbine of the turbocharger for driving the turbocharger, and an exhaust gas re-circulation pipe extending from the exhaust pipe to the intake duct, the exhaust gas re-circulation pipe includes a flap valve having a pivotally supported flap which, in an open position of the flap valve, is disposed in a plane parallel to the direction of the exhaust gas flow through the flap valve for minimizing the flow resistance in the exhaust gas re-circulation pipe.Type: GrantFiled: November 22, 1999Date of Patent: October 2, 2001Assignee: DaimlerChrysler AGInventors: Sven Bechle, Uwe Gärtner
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Patent number: 6295816Abstract: An apparatus (11) for controlling the peak pressure in the combustion chamber (46) of a turbo-charged diesel locomotive engine (12). A pressure relief valve (56) is disposed in the compressor discharge downstream of the turbo-charger (18). The relief valve (56) is operable to release a selected amount (58) of the compressed air (24) produced by the compressor section (20) of turbo-charger (18). The actuation of valve (56) may be a function of the pressure of the compressed air (24), and/or a manifold air temperature signal (52) and a fuel injection timing signal (40). An actuator (60) attached to valve (56) is responsive to a valve position signal (62) generated by a controller (38) having the appropriate inputs and programmed logic capability.Type: GrantFiled: May 24, 2000Date of Patent: October 2, 2001Assignee: General Electric CompanyInventors: Shawn Michael Gallagher, Ihab Khalil, Doug Glenn, Juan Carlos Alvarez
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Patent number: 6295817Abstract: A drive assembly for a vehicle with an internal-combustion engine for supplying driving energy, has an exhaust gas turbocharger which has a turbine and a compressor. The turbine is driven by exhaust gases of the internal-combustion engine, and the compressor is driven by the turbine. An air guiding system supplies fresh air to the compressor, in which the fresh air is compressed to form charge air. The air guiding system guides the charge air from the compressor to the internal-combustion engine, and the power of the internal-combustion engine is to be increased at low rotational speeds by an additional compressor which generates compressed fresh air which, as a function of the requirements, can be supplied to the air guiding system upstream of the internal-combustion engine. As the additional compressor, a compressor is used which is already present in the vehicle for other purposes.Type: GrantFiled: September 7, 1999Date of Patent: October 2, 2001Assignee: DaimlerChrysler AGInventors: Joerg Abthoff, Ruediger Pfaff, Joachim Wiltschka
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Patent number: 6295818Abstract: A flexible solar power assembly includes a flexible photovoltaic device attached to a flexible thermal solar collector. The solar power assembly can be rolled up for transport and then unrolled for installation on a surface, such as the roof or side wall of a building or other structure, by use of adhesive and/or other types of fasteners.Type: GrantFiled: June 28, 2000Date of Patent: October 2, 2001Assignee: PowerLight CorporationInventors: Jeffrey H. Ansley, Jonathan D. Botkin, Thomas L. Dinwoodie
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Patent number: 6295819Abstract: A thermoelectric heat pump fluid circuit apparatus (10) for alternately delivering hot and cold fluids to an end device (12) such as a therapeutic wrap or pad. The apparatus includes a heat pump (14), a fluid circuit (16) coupled with the heat pump and having a fluid contained therein, a pump (18) interposed in the fluid circuit for circulating the fluid therein, and a valve (20) interposed in the fluid circuit for selectively delivering fluid from the fluid circuit to a device coupled with the apparatus.Type: GrantFiled: January 18, 2000Date of Patent: October 2, 2001Assignee: Midwest Research InstituteInventors: Balakrishnan Mathiprakasam, Patrick J. Heenan
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Patent number: 6295820Abstract: A chiller for fresh fruit and other perishable food products is cooled with a thermoelectric device and includes a cool air recirculating system that minimizes air flow path lengths and provides uniform cool air distribution throughout a fruit container removably supported above the thermoelectric module. The cooling air flow duct system is formed in part by the bottom wall of the container, thereby enhancing direct cooling air flow contact in minimizing the lengths of the flow paths.Type: GrantFiled: March 14, 2000Date of Patent: October 2, 2001Assignee: Delta T, LLCInventors: Charles J. Cauchy, George A. Clark, Mark S. Thompson, Douglas P. Gundlach, Dan M. Bruner
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Patent number: 6295821Abstract: The present invention provides a method and system for controlling and limiting the discharge temperature of a compressor of a refrigeration system. The invention is suitable for converting an existing refrigeration system which operates with one refrigerant to use with another refrigerant which can cause high discharge temperatures. The invention includes a, simple four-part system—a temperature sensor to sense the discharge temperature, an injection valve for injecting liquid refrigerant into the suction gas line of the compressor, a fluid line for providing liquid refrigerant to the valve from the condenser and a digital controller for actuating the valve.Type: GrantFiled: June 13, 2000Date of Patent: October 2, 2001Assignee: Mad Tech LLCInventor: Mark P. Madigan
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Patent number: 6295822Abstract: A system for air-conditioning the cabin of a passenger aircraft using externally provided fresh air as well as bleed air tapped from the engine of the aircraft includes at least one heat exchanger (4, 5), a blower (7), a compressor (8), an expansion turbine (9), a condenser (11), a reheater (10), a first high pressure water separator (13), and a second low pressure water separator (12). The several components are connected to each other by air lines such as air ducts, with control valves interposed therein. Two separate air-flow paths representing two different sub-systems are formed. A first air-flow path uses the high pressure water separator while a second air-flow path uses the low pressure water separator. These two air-flow paths or sub-systems can be operated separately and independently of each other by appropriately switching respective shut-off valves.Type: GrantFiled: July 28, 2000Date of Patent: October 2, 2001Assignee: DaimlerChrysler Aerospace Airbus GmbHInventor: Wolfgang Mueller
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Patent number: 6295823Abstract: An apparatus for controlling temperature and humidity of a conditioned space uses an outside air cooling coil circuit in fluid communication with coolant from a cooling supply. Outside air is introduced over the outside air cooling coil circuit through a damper having open and closed positions. A valve in fluid communication with the coolant supply and the outside air cooling coil circuit has an open setting for permitting and a closed setting for preventing the circulation of coolant through the outside air cooling coil circuit. An HVAC unit control is operatively associated with the valve and the damper for controlling their operation. An occupancy control generates a signal indicating the presence of a human within the conditioned space and is operatively associated with the HVAC unit control.Type: GrantFiled: March 8, 2000Date of Patent: October 2, 2001Assignee: CH2M Hill, Inc.Inventors: Julius David Odom, David MacPhaul, Michael R. Harris
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Patent number: 6295824Abstract: A system comprises a facility for which snow is used, a snow producing unit for producing snow from water, and a collection section for collecting meltwater and supplies the collected meltwater to the snow producing unit as water used for producing snow. According to such a system, since snow is again produced from meltwater and used, artificial snow can be supplied to a facility for which artificial snow is used without using a large amount of water.Type: GrantFiled: January 18, 2000Date of Patent: October 2, 2001Assignee: Kabushiki Kaisha Piste Snow IndustriesInventor: Minoru Katayama
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Patent number: 6295825Abstract: A combined drying and refrigerating storehouse is disclosed. The storehouse comprises a housing, circulation passages, a heat pump unit, a second evaporator, flow passage control means and a control unit. The housing has a heat pump unit chamber and two combined drying and refrigerating chambers. The heat pump unit chamber is divided from the combined drying and refrigerating chambers by two partition walls. The circulating chambers are extended outwardly from the partition walls and extended vertically. The heat pump unit has a compressor, a four-way valve, first and second heat exchangers and a second condenser. The compressor, the fourway valve, the first heat exchanger, the second condenser, the second heat exchanger and the compressor are connected one after another by means of a first conduit. The outlet of the four-way valve is connected to the inlet of the compressor by means of a suction conduit. The second evaporator is disposed on a portion of a second conduit.Type: GrantFiled: August 9, 2000Date of Patent: October 2, 2001Inventor: Keum Su Jin
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Patent number: 6295826Abstract: A heating, ventilating and air conditioning unit adapted for mounting on the roof of a bus or similar vehicle. The HVAC unit is self-contained, lightweight and provides adequate cooling, heating and ventilation to a bus passenger compartment or the occupant compartment of a similar vehicle. The HVAC unit has a unique cross-pattern arrangement of evaporator and condenser assemblies which enables air distribution from the system to function in a ducted system or a free blow system depending upon orientation of the condensers and evaporators. The HVAC unit is of compact construction and includes modular characteristics provided by the allocation of one fan to one condenser and one blower to one evaporator to enhance system performance and system redundancy. The HVAC units include diagonal symmetry of components which further improves modularity, commonality and serviceability.Type: GrantFiled: November 26, 1999Date of Patent: October 2, 2001Assignee: Trans/Air Manufacturing Corp.Inventor: Mike S. S. Lee
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Patent number: 6295827Abstract: A thermodynamic cycle is disclosed that uses compression and expansion to generate refrigeration or power in which at least some of the compression is effected by hydrostatic head of the heat-exchange medium used in the cycle. In a refrigeration cycle, the head of a heat-exchange medium in the refrigeration cycle is used to compress the heat-exchange medium. A vaporous heat-exchange medium is introduced into the upper end of a down riser that extends downwardly through a heat sink. The vaporous heat-exchange medium descends through the down riser and the head of the heat-exchange medium compresses the heat-exchange medium. The heat generated by the compression is transferred to the heat sink. The heat-exchange medium is then pumped up through a return riser and passed through a pressure expansion means and evaporator. From the evaporator the heat-exchange medium is returned to the upper end of the down riser for recycling.Type: GrantFiled: September 23, 1999Date of Patent: October 2, 2001Assignee: ExxonMobil Upstream Research CompanyInventor: Bruce T. Kelley
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Patent number: 6295828Abstract: A refrigerant channel switching apparatus in an air conditioner having cooling and warming functions is provided. The apparatus includes a main valve body, a direction shifting chamber formed within the main valve body and having a four connecting ports connected to an output and an input of a compressor, an indoor heat-exchanger, and an outdoor heat-exchanger, respectively, an operating chamber formed in the main valve body having a plurality of connecting ports, an operational guide member contained in the operating chamber and disposed to rotate in the operating chamber, a partition formed with the operational guide member in a body and disposed to rotate within the direction shifting chamber of the main valve body, a pilot valve connected to the connecting ports of the operating chamber and causing the direction shifting chamber to switch a connection between a compressor, an indoor heat-exchanger, and an outdoor heat-exchanger.Type: GrantFiled: April 4, 2000Date of Patent: October 2, 2001Assignee: SamSung Electronics Co., Ltd.Inventor: Hyoung-Mo Koo
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Patent number: 6295829Abstract: Provided are catering service trolleys for preserving and distributing meal service trays in aeroplanes. The trolley includes side walls with double shells defining vertical channels opening at their upper part into the housing containing the refrigerating agent and at their lower part in the proximity of the bottom of the section receiving the meal-trays, thus enabling the refrigerating gas to circulate by convection over the whole height of the trolley and a more homogeneous temperature distribution.Type: GrantFiled: September 13, 1999Date of Patent: October 2, 2001Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Claude Gibot
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Patent number: 6295830Abstract: A tote for transporting refrigerated or frozen goods, e.g., foodstuffs, comprises an insulated container and a coolant insert. The insulated container comprises a durable, impact-resistant shell, an insulation insert, an optional corrugated liner, and a cover. The coolant insert fits within the container such that it rests on the top edge of the insulation liner sidewalls, and it holds a coolant, e.g., carbon dioxide snow. The insert has a perforated bottom wall and an insulated top wall. When the tote holds frozen goods, the perforated bottom wall is opposite the interior of the container. When the tote holds refrigerated goods, the insulated top wall is opposite the interior of the container.Type: GrantFiled: February 28, 2001Date of Patent: October 2, 2001Assignee: The BOC Group, Inc.Inventor: Michael D. Newman
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Patent number: 6295831Abstract: The present invention relates to a molded, one-piece, chilling pitcher with a compartment for holding a beverage, and an integral dividing wall that forms a wedge-shaped cooling chamber for holding a cooling medium such as ice. The main body of the pitcher is formed by a conical exterior wall and an integral base. The cooling chamber is formed between the arcuate shaped exterior wall and the dividing wall to produce a wedged-shaped configuration that facilitates the filling and emptying of ice into and from the chamber. This wedge-shape and the relatively wide radius of the dividing wall allow ice cubes or chips to be poured into the cooling chamber in a relatively compact manner, and allow the surface of the ice to flushly engage the surface of the dividing wall to improve the cooling rate of the pitcher.Type: GrantFiled: July 20, 1999Date of Patent: October 2, 2001Assignee: 865 Investment Group LLCInventor: Chris A. Watson
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Patent number: 6295832Abstract: A receiver tank (2) formed into an airtight container having an inlet port (24) and an outlet port (25) for a refrigerant, wherein separates the refrigerant introduced in a gas-liquid mixture state is separated, and the separated liquid refrigerant is stored therein and discharged therefrom so to continuously supply it, and the airtight container is formed as a double tube of an inner tube (16) and an outer tube (17), which have their tops mutually communicated but their bottoms not; the inlet port is formed to communicate with the bottom portion of a passage formed between the two tubes; and the outlet port is formed at lower end portions of the inner and outer tubes to communicate with the interior of the inner tube. The structure of no communication between the outer tube and the inner tube was achieved by having a structure of fitting either of them with the other or by disposing a joint member. A structure for prevention of the inner tube from tilting is provided.Type: GrantFiled: January 24, 2000Date of Patent: October 2, 2001Assignee: Zexel CorporationInventors: Soichi Kato, Akihiko Takano
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Patent number: 6295833Abstract: A closed loop single mixed refrigerant process and system wherein the process efficiency is increased by increasing the temperature of liquefied material produced in a heat exchange refrigeration zone and thereafter cooling the liquefied material by flashing a portion of the liquefied material to produce a cooler liquefied material and a flash gas a portion of which is recycled to the heat exchange refrigerator. The process and system provide increased process efficiency and flexibility.Type: GrantFiled: June 9, 2000Date of Patent: October 2, 2001Inventors: Shawn D. Hoffart, Brian C. Price
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Patent number: 6295834Abstract: Hyperpolarizers which produce hyperpolarized noble gases include one or more on-board NMR monitoring coils configured to monitor the polarization level of the hyperpolarized gas at various production points in the polarized gas production cycle. A dual symmetry NMR coil is positioned adjacent the optical pumping cell and is in fluid communication with a secondary reservoir in fluid communication with the polarized gas dispensing or exit flow path. This can measure the post-thaw polarization of the gas “on-board” the polarizer. Alternately or additionally, a NMR monitoring coil is assembled to the exit port portion of the optical pumping cell to give a more reliable indication of the polarization level of the gas as it flows out of the gas optical pumping cell. Another NMR monitoring coil can be positioned in a cryogenic bath adjacent a quantity of frozen polarized 129Xe to determine the polarization level of the frozen gas.Type: GrantFiled: June 30, 1999Date of Patent: October 2, 2001Assignee: Medi-Physics, Inc.Inventor: Bastiaan Driehuys
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Patent number: 6295835Abstract: In a process for separating air in a plant comprising at least two columns (1, 3), some of the air (100) at an intermediate pressure is cooled in at least one passage of a heat-exchange system which is or are regenerated by a gas from the plant (17, 21) which may contain at least 50% oxygen. The rest of the air at the medium pressure (200) is either purified outside the heat-exchange system or sent to a passage which is purified in the same way.Type: GrantFiled: February 1, 2000Date of Patent: October 2, 2001Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Patrick Le Bot
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Patent number: 6295836Abstract: A cryogenic air separation system comprising an integrated core and typically including a double column wherein incoming feed air is cooled in the core which also processes a stream from the double column. A separating section of the core processes a stream from the double column to form product.Type: GrantFiled: April 14, 2000Date of Patent: October 2, 2001Assignee: Praxair Technology, Inc.Inventors: Tu Cam Nguyen, Bayram Arman, Dante Patrick Bonaquist
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Patent number: 6295837Abstract: The object of the present invention is to separate air at low power cost to produce high-pressure nitrogen gas and oxygen gas by utilizing cold of liquefied natural gas. Feed air is pre-purified and then introduced into a cryogenic separation unit, so that oxygen gas and nitrogen gas are separated. The nitrogen gas separated in the cryogenic separation unit is introduced into a second heat exchanger, and cooled by indirect heat exchange with a refrigerant. The nitrogen gas thus cooled is compressed in a low-temperature nitrogen compressor and supplied through a heater to an external plant for consumption. LNG is introduced into a first heat exchanger as a cold source. In the first heat exchanger, LNG cools and liquefies the refrigerant by indirect heat exchange. The liquefied refrigerant is sent to the second heat exchanger. The refrigerant is vaporized by indirect heat exchange with the nitrogen gas in the second heat exchanger. The vaporized refrigerant is returned to the first heat exchanger.Type: GrantFiled: May 24, 2000Date of Patent: October 2, 2001Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Ryo Den, Shinji Tomita
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Patent number: 6295838Abstract: An integrated cryogenic air separation gas turbine system wherein heat of compression within the feed air is provided to nitrogen produced in the cryogenic air separation plant and the heated nitrogen is provided to a gas turbine along with combustion reaction products to produce power.Type: GrantFiled: August 16, 2000Date of Patent: October 2, 2001Assignee: Praxair Technology, Inc.Inventors: Minish Mahendra Shah, Raymond Francis Drnevich, Nancy Jean Lynch, Kevin William Mahoney
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Patent number: 6295839Abstract: A cryogenic air separation comprising an integrated core and typically including a double column wherein incoming feed air is cooled in the core which also processes a stream from the double column. A separating section of the core processes a stream from the double column to product.Type: GrantFiled: March 20, 2001Date of Patent: October 2, 2001Assignee: Praxair Technology, Inc.Inventors: Tu Cam Nguyen, Bayram Arman, Dante Patrick Bonaquist, Kenneth Kai Wong, John Fredric Billingham
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Patent number: 6295840Abstract: A cryogenic air separation process wherein one or more pressurized product streams enriched in oxygen, nitrogen and argon are produced by cryogenic distillation. One or more of the product streams are pressurized above the operating pressure of the distillation column by introducing a pressurizing fluid into a vessel containing a lower pressure product liquid. In the design of the system the pressurizing fluid can be air or streams enriched in oxygen, nitrogen or argon. Product stream pressurization is accomplished without the use of mechanical pumping devices.Type: GrantFiled: November 15, 2000Date of Patent: October 2, 2001Assignee: Air Products and Chemicals, Inc.Inventor: Arthur Ramsden Smith
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Patent number: 6295841Abstract: A fused silica glass which exhibits low compaction when exposed to high intensity excimer radiation, also exhibits low optical path distortion after exposure to a high intensity radiation dose. Also disclosed is a method for improving the select ratio of fused silica glass for photolithography, by predicting the optical path distortion of the glass under use by determining the intrinsic densification of the glass at a given number of pulses and fluence per pulse. Mathematical modeling methods are also disclosed for use in producing a fused silica stepper lens having low compaction under high intensity excimer radiation; and for determining optical path distortion caused by high energy radiation in fused silica glass.Type: GrantFiled: February 25, 1999Date of Patent: October 2, 2001Assignee: Corning IncorporatedInventors: Douglas C. Allan, William R. Powell, Nicholas F. Borrelli, Thomas P. Seward, III, Charlene M. Smith
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Patent number: 6295842Abstract: A glass sheet quench unit (22) and method for quenching formed glass sheets by quench gas jets (40) that define a uniformly repeating gas jet impingement pattern (44) that is an equilateral triangular pattern providing uniformly repeating quench cells (46) distributed over the formed glass sheet to be quenched as equilateral hexagonal quench cells. The resultant product is a formed and quenched glass sheet (G) that has oppositely facing surfaces between which glass stresses are uniformly distributed. A method for making the quench unit (22) is performed by initially forming nozzle openings (38) in an elongated nozzle strip (36′), thereafter forming the nozzle strip with a curved cross section, thereafter forming the nozzle strip with a curved shape along its elongated length to provide a curved nozzle cap, subsequently securing the curved nozzle cap to planar sides (30) of an associated nozzle feed row (28), and securing the sides (30) of the nozzle feed row to a plenum housing (24).Type: GrantFiled: October 15, 1999Date of Patent: October 2, 2001Assignee: Glasstech, Inc.Inventor: Ronald A. McMaster
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Patent number: 6295843Abstract: The present invention relates to a single-mode optical fiber having a configuration which enables lowering of dispersion slope while securing a sufficient MFD. This single-mode optical fiber has a refractive index profile in which an indent with a sufficient width is provided at the center of its core region. In particular, this indent satisfies the following relationship: a·(&Dgr;n2−&Dgr;n1)/(b·&Dgr;n2)≧0.04 when the first core portion in the single-mode optical fiber has a mean relative refractive index difference of &Dgr;n1 with respect to the cladding portion and an outer diameter of a while the second core portion has a mean relative refractive index difference of &Dgr;n2 with respect to the cladding portion and an outer diameter of b.Type: GrantFiled: March 27, 2000Date of Patent: October 2, 2001Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yoshiaki Terasawa, Yuji Takahashi, Takatoshi Kato
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Patent number: 6295844Abstract: An apparatus and method for drawing low loss fluoride glass fibers from a preform. A stream of reactive gas is passed around the preform and fiber so as to prevent moisture and oxygen contamination of the fiber while the fiber is being drawn. The apparatus includes an insulating vessel which surrounds a heating chamber in which the fiber is drawn, and a very narrow heating zone within the chamber for preventing crystallization of the drawn fiber.Type: GrantFiled: September 11, 1989Date of Patent: October 2, 2001Inventors: Danh C. Tran, Pablo C. Pureza
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Patent number: 6295845Abstract: A device for dispensing at least one thread at a feed or drop of a circular machine for knitting hosiery or the like, particularly for single-cylinder circular machines. The device comprises at least one thread guide which is arranged at a feed or drop of a circular machine for knitting hosiery or the like and has an end for dispensing a thread which laterally faces the needle cylinder proximate to its upper end, in the needle work area of the machine. The thread guide can controllably move with respect to the needle cylinder for shifting its thread dispensing end along a path which has a component which is substantially parallel to the tangent, located in a plane which is substantially perpendicular to the axis of the needle cylinder, to the needle cylinder in a region at which it is arranged.Type: GrantFiled: February 23, 2001Date of Patent: October 2, 2001Assignee: Matec S.p.A.Inventors: Fernando Caselli, Filippo Bargellini
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Patent number: 6295846Abstract: The invention relates to a method of producing a flake-yarned knit as required more particularly in achieving velour-type coverings. In this method the flake thread is bound in as a weft and/or warp thread in the knit on a flat knitting machine.Type: GrantFiled: April 13, 1999Date of Patent: October 2, 2001Assignee: Recaro GmbH & Co.Inventor: Friedrich Roell
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Patent number: 6295847Abstract: A device for coupling a cable to a locking member provided at an end of the cable. A coupling device includes a slot portion provided with a slot for receiving the locking member, and at least one cable portion that extends from the slot portion, the cable portion being formed with an opening for receiving passage of the cable therein. An object that includes an opening or passage may receive the cable for being secured thereby.Type: GrantFiled: October 22, 1999Date of Patent: October 2, 2001Assignee: Acco Brands, Inc.Inventor: Gregory Zeren