Sensor Within Conduit Patents (Class 374/148)
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Patent number: 7237948Abstract: A thermal sensor is pushed into a housing bushing so that a pin of the sensor is locked in an opening of the housing bushing. The thermal sensor is thereby easily fixed within the housing bushing. Further, the thermal sensor does not rotate within the housing bushing.Type: GrantFiled: December 23, 2004Date of Patent: July 3, 2007Assignee: Denso CorporationInventor: Hideki Nakabayashi
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Patent number: 7174579Abstract: An electronic temperature display system that connects directly to a water outlet comprising a sensor coupling unit, bushing, and a display panel assembly. Microprocessor-based circuitry monitors both temperature and the presence or absence of water through the water outlet. The device displays real-time shower temperature on a self-contained unit consisting of a position adjustable display panel. A programmable temperature scorching setting provides protection from scorching by signaling an audible warning tone when the water temperature has gone passed a preset temperature. The device displays true water temperature by monitoring temperature and water conductivity inside the sensor-coupling unit.Type: GrantFiled: September 13, 2004Date of Patent: February 13, 2007Inventor: Pedro Bauza
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Patent number: 7175099Abstract: A sensing arrangement for sensing one or more properties of a fluid is provided. The sensing arrangement includes a fluid flow path (3) and a sensing means (5) to sense one or more properties of the fluid. The sensing means (5) is positioned or positionable within the fluid flow path (3). In use, the sensing arrangement directs the fluid in a substantially spiral flow (2) within the fluid flow path (3) past the sensing means (5). Also provided is a method of sensing one or more properties of a fluid and a fluid system for controlling one or more properties of a fluid.Type: GrantFiled: October 3, 2001Date of Patent: February 13, 2007Assignee: Emech Control LimitedInventors: James Raymond Bilyard, Peter Jeromson
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Patent number: 7165883Abstract: A thermowell assembly (20) shown in FIG. 2 is positioned in a pipeline (10) for sensing the temperature of the fluid medium in the pipeline (10) for transmitting the sensed temperature to a meter (12). A temperature sensing probe is received within a temperature conducting tube (36) forming a thermowell and having a plurality of annular fins (40) extending thereabout. In the embodiments of FIGS. 1–7, a liquid (50) is provided in an annular space between the thermocouple (28) and the temperature conducting tube (36). Non-metallic members (70, 74, 80) are positioned between the pipeline (10) and the temperature transmitting tube (36) to isolate thermocouple (28) from ambient changes in the temperature of metal pipeline (10) which may result in an error in the temperature of the flow medium sensed by the thermowell assembly (20). High temperature embodiments shown in FIGS.Type: GrantFiled: May 15, 2002Date of Patent: January 23, 2007Assignee: PGI International, Ltd.Inventors: Spencer M. Nimberger, Kevin J. Cessac
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Patent number: 7153023Abstract: A method of mounting an instrument probe using an adapter post is provided. The method includes coupling an attachment end of the adapter post to a first wall defined between a cavity and an annulus, coupling an opposite sealing end of the adapter post to a second wall defined between the annulus and the ambient area, sealing the adapter post to compensate for a relative movement between the first wall and the second wall such that the sealing is maintained, and inserting the instrument probe at least partially within the adapter post to monitor a process parameter within the cavity.Type: GrantFiled: January 12, 2004Date of Patent: December 26, 2006Assignee: General Electric CompanyInventors: David Clarence Howard, Eskedar Abebe, Barton Hunter Snow
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Patent number: 7124452Abstract: An electronic shower temperature display device that connects directly to an existing shower arm and showerhead assembly comprising a sensor coupling unit, panel support bracket, and a display panel assembly. Microprocessor-based circuitry monitors both temperature and the presence or absence of water through the device and the showerhead. The device displays real-time shower temperature on a self-contained unit consisting of a position adjustable display panel. A programmable memory storage system is used for retrieving multi-user temperature settings, whereby provides an audible tone when the desired temperature is arrived at. A programmable temperature scorching setting provides protection from scorching by signaling an audible warning tone when the shower temperature has gone passed a preset temperature. The device displays true water temperature by monitoring temperature and water conductivity inside the sensor-coupling unit.Type: GrantFiled: February 23, 2004Date of Patent: October 24, 2006Inventor: Pedro J. Bauza
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Patent number: 7121722Abstract: A temperature sensor comprising: a flange having a bore and mounted on a fluid pipe having a fluid flow, to prevent said fluid from leaking out; an MI cable formed to have metallic cores insulated and retained on a metallic outer cylinder, and fixed in such a mode in said bore that a leading end side of said MI cable protrudes from a leading end side of said flange and extends in an axial direction; a metallic cap fixed on a leading end side outer circumference of said MI cable and having fluid communication ports for allowing said fluid to flow therein; and a temperature sensing element including: a ceramic substrate housed in said cap; a sensing portion formed over said ceramic substrate and having electric characteristics varied with a temperature of said fluid; and a wiring portion for connecting said sensing portion and said metallic cores of said MI cable electrically.Type: GrantFiled: April 30, 2004Date of Patent: October 17, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Go Hanzawa, Masahiko Nishi
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Patent number: 7104685Abstract: A temperature sensor (1) including a cylindrical metal tube (3) having a front end side blocked, a thermistor element (2), and a sheath member (8) connected to the thermistor element (2) and held in the inside of the metal tube (3), wherein: the metal tube (3) has a small-diameter portion (33) located on the front end side and entirely having an inner diameter smaller than the outer diameter of the sheath member (8), and a large-diameter portion (36) located on the rear end side of the small-diameter portion (33) and having a diameter larger than the outer diameter of the small-diameter portion (33); and a thermistor sintered body (21) is held in the small-diameter portion (33) and cement (10) is filled in between a front end of the thermistor sintered body (21) and a front end of an inner wall of the metal tube (3) and on the front end side viewed from a rear end surface of the thermistor sintered body (21).Type: GrantFiled: March 25, 2004Date of Patent: September 12, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Go Hanzawa, Masahiko Nishi, Masaki Iwaya, Takaaki Chosokabe
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Patent number: 7070324Abstract: The invention relates to a method and to a device for system- and/or process-monitoring in connection with a measurement apparatus that determines/monitors at least one process parameter of a medium. The method and device enable statements to be made regarding the present and future functionality of a measurement apparatus, or individual components of the measurement apparatus. The temperature values (T) of the medium are ascertained directly or indirectly and a trend analysis regarding the thermal loading of the measurement apparatus or the thermal loading of individual components of the measurement apparatus is carried out on the basis of the ascertained temperature values (T) of the medium or on the basis of the derivatives of the ascertained temperature values of the medium.Type: GrantFiled: December 1, 2001Date of Patent: July 4, 2006Assignee: Endress & Hauser Flowtec AGInventor: Thomas Budmiger
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Patent number: 7059766Abstract: An optical method, and an optical device based on a laser source for implementing an optical method, for nonintrusively measuring the temperature of a flowing liquid by using the fluorescence induced by a laser beam in a measurement volume of the liquid, uses a single temperature-sensitive fluorescent tracer and at least two separate spectral detection windows on the tracer, after molecular dilution of the tracer in the liquid medium.Type: GrantFiled: March 12, 2001Date of Patent: June 13, 2006Assignee: Institut National Polytechnique de Lorraine (INPL)Inventors: Fabrice Lemoine, Pascal La Vieille
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Patent number: 7056013Abstract: A temperature sensor arrangement (100, 300) includes a sensor cavity (150), a temperature sensing element (330) being positioned along a center line (140, 340) of the sensor cavity (150) and generating a signal indicating temperature of air flowing thereto, and a generally cylindrical outer casing (105, 305) surrounding the sensor cavity (150). In one embodiment, the outer casing (105) includes a pattern of flow passages (110) for allowing air flow to the temperature sensing element (330) in the sensor cavity (150), the flow passages (110) being angled such that there is no direct line of air flow from an exterior of the outer casing (105) to the sensing element (330). In another embodiment, the flow passages (310) are arranged in an offset pattern relative to a center line (340) of the housing cavity (150), such that there is no direct line of air flow from an exterior of the outer casing (305) to the sensing element (330).Type: GrantFiled: March 31, 2004Date of Patent: June 6, 2006Assignee: Honeywell International Inc.Inventors: Peter Anderson, Roger R. Sanger, Timothy J. Lippold, Paul J. Cairns
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Patent number: 7018096Abstract: A temperature probe includes an elongated longitudinal tubular shaft having a hollow interior, an insulating structure mounted on the elongated shaft, and a heat conducting structure constructed of a metallic material coupled to the insulating structure. A thermocouple is coupled to the heat conducting structure and extends into the hollow interior of the elongated shaft. A control device is electrically communicated to the thermocouple and is operable to determine a temperature from the thermocouple. When the heat conducting structure is disposed within a mass of packed product, the heat conducting structure transmits thermal energy from the mass to the thermocouple and the insulting structure thermally isolates the heat conducting structure from the tubular shaft.Type: GrantFiled: July 28, 2003Date of Patent: March 28, 2006Assignee: Universal Leaf Tobacco Company, Inc.Inventor: Larry D Benjamin
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Patent number: 7014357Abstract: A sensor for detecting icing conditions in an airstream includes a flow housing mounted on an aircraft and in which one or more probes are mounted. At least one of the probes subjected to impingement of the airstream and liquid moisture droplets in such airstream. The heat removal, or cooling effect on the probe in the airstream carrying liquid droplets is determined. A temperature signal indicating the airstream temperature is combined with signals from the at least one probe for determining whether or not icing conditions are present.Type: GrantFiled: November 19, 2002Date of Patent: March 21, 2006Assignee: Rosemount Aerospace Inc.Inventor: John A. Severson
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Patent number: 7014359Abstract: A temperature measuring device is provided which measures the total temperature T1 of an airflow based on the measured temperature T of the airflow flowing over the surface of an approximately blade-shaped casing arranged within the airflow flowing into an engine of the aircraft. The shape of the casing is set such that lumps of ice and snow, which may form on a surface of the casing and which may thereafter detach from the casing and strike the engine, detach at a stage of growth at which they do not cause damage to the engine.Type: GrantFiled: February 15, 2002Date of Patent: March 21, 2006Assignee: Yokogawa Denshikiki Co., Ltd.Inventor: Taro Suga
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Patent number: 6960018Abstract: The present invention is directed to a device and method for removing build-up on such measurement gauges. The inventive device and method involve a movable scraper that fits around a cylindrical shield of a measurement gauge and continuously removes the build-up on the shield. Movement of the scraper is accomplished by a magnetic coupling between a magnetic core attached to the scraper, which is inside a pipe or other piece of equipment, and solenoids that are installed on the outside of the pipe. The device and method of the invention ensure instantaneously correct readings from the measurement gauge and improve control and operation strategies of heat exchanges, with significant economic advantages.Type: GrantFiled: January 16, 2004Date of Patent: November 1, 2005Assignee: ConAgra Grocery Products CompanyInventors: Constantine Sandu, Liviu V. Popa, John J. Mercurio
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Patent number: 6923573Abstract: The invention provides a cooling system for protecting an image fiber and an imaging device from thermal influences and a temperature measurement apparatus, for a molten metal, capable of being easily controlled and stably measuring the temperature. The temperature measurement apparatus for a molten metal comprises four connectable portions of a nozzle portion a purge/cooling gas introduction portion, an image fiber fitting portion with a window glass and an image fiber to a double pipe nozzle protection tube. A distance from a nozzle distal end as an introduction portion of thermal radiation light to a light reception portion at an image fiber distal end becomes short so that a greater amount of thermal radiation light can be received.Type: GrantFiled: July 26, 2002Date of Patent: August 2, 2005Assignees: Nippon Steel Corporation, Nittetsu Plant Designing CorporationInventors: Kosuke Yamashita, Tomoaki Tanaka, Masato Sugiura, Kiyomi Horikoshi, Makoto Sumi
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Patent number: 6890095Abstract: A multipoint temperature sensor for measuring fluid temperature in a duct includes multiple thermistors of equal resistance, spaced apart in a circuit. Each thermistor has a positive lead and a negative lead for connecting electrically with the circuit. Wires connect the thermistors such that half of the thermistors are placed in parallel with the other half of the thermistors. The total number of thermistors in the circuit is a perfect square. Shrinkwrap fits over the thermistors and the leads. Tabs disposed on bridging clips bend around the shrinkwrap and the wires on either side of each thermistor such that the tabs do not overlap the leads. All the wires between adjacent thermistors are contained in a single, plenum rated sheathing.Type: GrantFiled: April 1, 2003Date of Patent: May 10, 2005Assignee: Mamac Systems, Inc.Inventor: S. Asim Gul
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Patent number: 6840672Abstract: A total air temperature (TAT) probe for measuring TAT includes an inlet scoop which receives airflow from free stream airflow moving toward the inlet scoop from a first direction. A first portion of the airflow entering the inlet scoop exits the probe through a main exit channel. A second portion of the airflow enters a TAT sensor flow passage, which extends longitudinally along an axis. This axis is oriented to form an angle of less than 90 degrees with the first direction from which the free stream airflow moves toward the inlet scoop. A sensor assembly extends longitudinally in the sensor flow passage and measures a total air temperature of airflow through the sensor flow passage. By increasing the angle through which the internal air turns, better inertial extraction of ice and water particles is realized. As a result, sensor clogging from accreted ice is significantly reduced. A second improvement is achieved by repositioning the sensor element to be more in-line with the internal airflow direction.Type: GrantFiled: June 23, 2003Date of Patent: January 11, 2005Assignee: Rosemount Aerospace Inc.Inventors: Paul A. Ice, Charles R. Willcox
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Patent number: 6827486Abstract: An automatic insertion device includes a temperature sensing element structured to provide direct contact between the fluid in a pipeline and the sensor or sensing element. A valve assembly is provided to seal the interior of the conduit from its exterior when the sensing element is in its retracted position.Type: GrantFiled: November 22, 2002Date of Patent: December 7, 2004Assignee: Welker Engineering CompanyInventor: Brian H. Welker
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Patent number: 6827285Abstract: A sensor well mechanism is disclosed for that may be directed inserted into an enclosure where a measurement of the atmosphere within the enclosure is desired. The sensor well is provided with a drilling head and a drill point allowing the sensor well to be directly inserted into an enclosure using a tool. The sensor well is provided with a bore and slots such that a sensor may be provided within the bore of the sensor well and may be exposed to the atmosphere of an enclosure after the sensor well is inserted into the enclosure.Type: GrantFiled: March 20, 2003Date of Patent: December 7, 2004Assignee: Siemens Building Technologies, Inc.Inventor: James D. Head
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Publication number: 20040233969Abstract: An automatic insertion device includes a temperature sensing element structured to provide direct contact between the fluid in a pipeline and the sensor or sensing element. A valve assembly is provided to seal the interior of the conduit from its exterior when the sensing element is in its retracted position.Type: ApplicationFiled: July 12, 2004Publication date: November 25, 2004Applicant: Welker Engineering CompanyInventor: Brian H. Welker
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Publication number: 20040218662Abstract: A temperature sensor comprising: a flange having a bore and mounted on a fluid pipe having a fluid flow, to prevent said fluid from leaking out; an MI cable formed to have metallic cores insulated and retained on a metallic outer cylinder, and fixed in such a mode in said bore that a leading end side of said MI cable protrudes from a leading end side of said flange and extends in an axial direction; a metallic cap fixed on a leading end side outer circumference of said MI cable and having fluid communication ports for allowing said fluid to flow therein; and a temperature sensing element including: a ceramic substrate housed in said cap; a sensing portion formed over said ceramic substrate and having electric characteristics varied with a temperature of said fluid; and a wiring portion for connecting said sensing portion and said metallic cores of said MI cable electrically.Type: ApplicationFiled: April 30, 2004Publication date: November 4, 2004Applicant: NGK SPARK PLUG CO., LTD.Inventors: Go Hanzawa, Masahiko Nishi
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Patent number: 6789938Abstract: The present invention is directed to a device and method for removing build-up on such measurement gauges. The inventive device and method involve a movable scraper that fits around a cylindrical shield of a measurement gauge and continuously removes the build-up on the shield. Movement of the scraper is accomplished by a magnetic coupling between a magnetic core attached to the scraper, which is inside a pipe or other piece of equipment, and solenoids that are installed on the outside of the pipe. The device and method of the invention ensure instantaneously correct readings from the measurement gauge and improve control and operation strategies of heat exchanges, with significant economic advantages.Type: GrantFiled: August 29, 2002Date of Patent: September 14, 2004Assignee: ConAgra Grocery Products CompanyInventors: Constantine Sandu, Liviu V. Popa, John J. Mercurio
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Patent number: 6786633Abstract: In a method and an arrangement for acoustic determination of an instantaneous fluid temperature, acoustic velocity V in a fluid is monitored and an output signal related to the acoustic velocity is generated. A conventional temperature sensor senses a fluid temperature TS and generates an output signal related thereto.Type: GrantFiled: February 1, 2002Date of Patent: September 7, 2004Assignee: Maquet Critical Care ABInventors: Lars Wallen, Goran Skog
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Patent number: 6776524Abstract: A thermocouple probe assembly is provided that includes at least one ball bushing placed along the length of the assembly to dampen vibrations and thereby reduce mechanical stress on the assembly. A rake thermocouple is provided that includes a plurality of probe tubes arranged parallel to one another, and each probe assembly is placed into an individual probe tube. Each probe tube has a window defined therein, and an air inlet port extending from the window generally perpendicular to the probe tube. The rake also includes a mated end cap and cup bushing with a defined gap between the inside diameter of the cup bushing and the outside diameter of the end cap to further dampen mechanical stress on the rake.Type: GrantFiled: October 2, 2001Date of Patent: August 17, 2004Assignee: Ametek, Inc.Inventors: Sun Park, John V. Ginkus
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Patent number: 6746150Abstract: For detecting the temperature of a fluid, particularly a flowing liquid or gaseous medium, in the hollow space of a housing, a temperature-measuring element is provided that can be connected to an evaluation device via a plug arrangement and is arranged in a protective tube of a sensor housing, which is closed on one side, and with a connection piece firmly affixed thereto. The protective tube projects at least with its tip into an opening of the hollow space that is sealed off from the outside atmosphere using an elastic O-ring. The temperature-measuring element is arranged in the region of the tip of the protective tube on one end of a longitudinally extending circuit board and is connected via strip conductors to the plug arrangement that leads to the outside. The plug arrangement is surrounded by a screw sheath of the sensor housing, which is firmly connected to the protective tube and is provided with a threading that projects into the housing of the hollow space for the purpose of mounting.Type: GrantFiled: June 29, 2001Date of Patent: June 8, 2004Assignee: Heraeus Electro-Nite International N.V.Inventors: Karl-Heinz Wienand, Matthias Muziol
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Publication number: 20040101026Abstract: The present invention provides a measurement device capable of measuring relatively accurately the temperature of inspired air used in artificial respiration.Type: ApplicationFiled: November 20, 2003Publication date: May 27, 2004Applicant: Metran Co., Ltd.Inventors: Kazufuku Nitta, Mitsuo Nemoto
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Patent number: 6722781Abstract: A simple method and apparatus for contactless rapid and inexpensive motion checking of flat objects, preferably of currency papers. The objects need not be identical in size, thickness, surface appearance, configuration nor deterioration. The checking is carried out by detecting of airflow oscillation under unexpected stoppage of testing object or air movement around the object especially on its front and back edges.Type: GrantFiled: July 10, 2002Date of Patent: April 20, 2004Assignee: Cashcode Company Inc.Inventors: Mykhaylo Bazhenov, Dmytro Baydin, Oleksandr Lukonin, Bogdan Mishunin
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Publication number: 20040025607Abstract: A device called “pill” (10) is provided for in-line measurement of properties, such as pressure and temperature, in a fluid flow within a pipeline system. The device is small enough to travel in the medium of the pipeline system in an unrestricted manner. It has at least one sensor to scan properties such as pressure and temperature at a desired rate. Also, the device includes a microprocessor for logging data scanned by the sensor (18) so that it can later be downloaded and analysed by a PC. Moreover, the device has a buoyancy compensator for adjusting the specific gravity of the device to make it compatible with the medium in which it travels. The novel device is particularly suitable for use in solids transport systems, such as mining backfill systems.Type: ApplicationFiled: November 18, 2002Publication date: February 12, 2004Inventors: Paul A Rantala, Andrew T MacKenzie
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Patent number: 6663279Abstract: The invention relates to a device for measuring the temperature of an oil in a housing (4) of a transmission (2) with a temperature sensor (20) which can come into contact with the oil. The temperature sensor (20) is arranged outside the oil sump (16) in the transmission housing (4) and is preferably integrated directly in the transmission controller (18).Type: GrantFiled: September 13, 2001Date of Patent: December 16, 2003Assignee: ZF Friedrichshafen AGInventors: Karl-Fritz Heinzelmann, Harald Albrecht
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Patent number: 6655833Abstract: The present invention relates to an arrangement (1) for calculating the temperature T in a driver's compartment (2) of a vehicle. The arrangement (1) incorporates a temperature sensor (4) arranged in a duct (5) and means (6) designed to allow an air flow from said driver's compartment (2) to pass through said duct (5), and said temperature sensor (4) is designed to measure a first temperature level T1 of said airflow. Said means (6) are also designed to halt said air flow for a period of time and said temperature sensor (4) is designed to measure, towards the end of said period of time, a second temperature level T2. The temperature T is calculated on the basis of said first temperature level T1 and said second temperature level T2.Type: GrantFiled: April 26, 2002Date of Patent: December 2, 2003Assignee: Scania CV AB (publ)Inventor: Sven Anders Melin
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Patent number: 6644848Abstract: An oil pipeline, which connects a Christmas tree at its lower end to an oil rig at its upper end, is fitted with a stainless steel tube sheathed telecommunications grade optical fiber, forming part of a distributed temperature measurement device, such as to be in thermal contact with the oil flowing along the pipeline. Also fitted to respective ones of three discrete positions on the pipeline are ultrasonic deposit thickness measurement devices, the one nearest of which to the Christmas tree is a few hundred meters downstream from a position where preliminary studies of the pipeline system have indicated that deposits are likely to form during oil production. A computer, located on the oil rig, is connected to be able to provide control over and to receive measurement signals from the temperature measurement devices and the deposit thickness measurement devices. A model of at least deposit deposition stored in the computer is revised in response to these signals.Type: GrantFiled: February 23, 2001Date of Patent: November 11, 2003Assignee: ABB Offshore Systems LimitedInventors: Hugh R Clayton, Raiko Milanovic
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Patent number: 6641305Abstract: A tap water temperature measuring device. The device includes a tube device having first and second ends and a straight bore there through, a multi-connector attached to the first end of the tube device, a filter attached to the second end of the tube device 20, and an integrated circuit board connected to the tube device 20. A circuit activation probe is connected to the integrated circuit board. The circuit activation probe includes a water sensing probe and a temperature probe. The water sensing probe and the temperature probe extend into the straight bore of the tube device such that the circuit activation probe is only activated when the water sensing probe detects the presence of water in the bore of the tube device, after which, the temperature probe is activated to transmit a temperature reading to the integrated circuit board.Type: GrantFiled: February 15, 2002Date of Patent: November 4, 2003Assignee: King-I Electromechanical Industry Co., Ltd.Inventor: David Wang
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Patent number: 6609825Abstract: A total air temperature probe positionable on a surface of an aircraft for measuring total air temperature includes an inlet scoop which receives airflow from free stream airflow moving toward the inlet scoop from a first direction. A first portion of the airflow entering the inlet scoop exits the probe through a main exit channel. A second portion of the airflow enters a TAT sensor flow passage, which extends longitudinally along an axis. This axis is oriented to form an angle of less than 90 degrees with the first direction from which the free stream airflow moves toward the inlet scoop. A sensor assembly extends longitudinally in the sensor flow passage and measures a total air temperature of airflow through the sensor flow passage. By increasing the angle through which the internal air turns, better inertial extraction of ice and water particles is realized. As a result, sensor clogging from accreted ice is significantly reduced.Type: GrantFiled: September 21, 2001Date of Patent: August 26, 2003Assignee: Rosemount Aerospace Inc.Inventors: Paul A. Ice, Charles R. Willcox
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Publication number: 20030156620Abstract: The present invention is related to a tap water temperature measuring device includes setting up a thermoscope IC board inside device tube. The thermoscope IC board is formed by circuit activation probe, which combines activation probe and temperature probe. While the water pass by the probes, it will activated the switch which creates circuit function thermoscope IC board. The temperature probe detects the water temperature from the tap and passes the reading to the device tube constantly. The LCD and the warning indicator lights are located on the side of the device tube for users convenience (the warning light enable one to tell the instant temperature). Therefore, knowing and controlling the water temperature from the tap at all time, which prevents congelatioin and ambustion, will protect the users.Type: ApplicationFiled: February 15, 2002Publication date: August 21, 2003Applicant: KING-I ELECTROMECHANICAL INDUSTRY CO., LTD.,Inventor: David Wang
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Patent number: 6599012Abstract: A thermowell adapter secures a sheathed and flanged sensor within an internally threaded thermowell. The thermowell adapter has a head and a body extending from the head. The body of the thermowell adapter has external threading for mating with the internally threaded thermowell. A passageway within the head and body defines an axis coaxially with the external threading. The sheathed and flanged probe extends within the passageway such that a sensing element of the sheathed and flanged probe extends into the thermowell. An axial securement on the head prevents the sheathed and flanged probe from moving axially in the passageway. A rotational securement that is separate from the axial securement interacts in a mating relationship with squeeze locations on the sheathed and flanged probe to prevent the probe from rotating about its axis in the passageway.Type: GrantFiled: February 19, 2002Date of Patent: July 29, 2003Assignee: Mamac Systems, Inc.Inventor: S. Asim Gul
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Patent number: 6592254Abstract: A multipoint temperature sensor for measuring fluid temperature in a duct includes multiple thermistors of equal resistance, spaced apart in a circuit. Each thermistor has a positive lead and a negative lead for connecting electrically with the circuit. Wires connect the thermistors such that half of the thermistors are placed in parallel with the other half of the thermistors. The total number of thermistors in the circuit is a perfect square. Shrinkwrap fits over the thermistors and the leads. Tabs disposed on bridging clips bend around the shrinkwrap and the wires on either side of each thermistor such that the tabs do not overlap the leads. All the wires between adjacent thermistors are contained in a single, plenum rated sheathing.Type: GrantFiled: June 26, 2001Date of Patent: July 15, 2003Assignee: Mamac Systems, Inc.Inventor: S. Asim Gul
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Patent number: 6581847Abstract: An adaptive control device (77) and method (102-108) for control of the operation of an actuator (72), and particularly thermally-powered actuator (72) of the type used in a variable-air-volume diffuser (71). The preferred adaptive control device is an expert system circuit which controls a heater (74) provided on a thermally-powered actuator (72) to implement an adaptive process (102-108) in which a sensed variable, such as room air temperature, is driven toward a target temperature control range (±0.25° F.). Most preferably, the process steps (106) include driving the room air temperature toward a gross (broader) temperature control range (±1.0° F.) by moving a diffuser damper assembly (80) to a substantially fully open or substantially fully closed position.Type: GrantFiled: April 26, 2001Date of Patent: June 24, 2003Assignee: Acutherm L.P.Inventors: James R. Kline, Robert S. Hunka, Matthew L. Costick
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Patent number: 6579005Abstract: A method for determining oxidation in turbine buckets allows for conditional based maintenance of the turbine buckets. The method includes measuring a temperature of a turbine bucket and comparing the measured temperature to a temperature of a reference turbine bucket to determine the condition of the bucket. The method provides useful temperature data to determine if the turbine should be stopped and the bucket serviced. This method may be used in place of interval based maintenance to increase bucket life, reduce bucket failure, and increase turbine operating time.Type: GrantFiled: December 28, 2000Date of Patent: June 17, 2003Assignee: General Electric CompanyInventor: Michael David Ingallinera
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Patent number: 6575623Abstract: The present invention may be embodied in a device for detection of vulnerable plaque in a vessel based on a temperature increase of the vessel's wall. The device may be a guide wire having an extendable assembly having resilient delivery wires for placing the temperature sensor in contact with the vessel's inner wall.Type: GrantFiled: October 1, 2001Date of Patent: June 10, 2003Assignee: Cardiostream, Inc.Inventor: Randell L. Werneth
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Publication number: 20030058919Abstract: A total air temperature probe positionable on a surface of an aircraft for measuring total air temperature includes an inlet scoop which receives airflow from free stream airflow moving toward the inlet scoop from a first direction. A first portion of the airflow entering the inlet scoop exits the probe through a main exit channel. A second portion of the airflow enters a TAT sensor flow passage, which extends longitudinally along an axis. This axis is oriented to form an angle of less than 90 degrees with the first direction from which the free stream airflow moves toward the inlet scoop. A sensor assembly extends longitudinally in the sensor flow passage and measures a total air temperature of airflow through the sensor flow passage. By increasing the angle through which the internal air turns, better inertial extraction of ice and water particles is realized. As a result, sensor clogging from accreted ice is significantly reduced.Type: ApplicationFiled: September 21, 2001Publication date: March 27, 2003Inventors: Paul A. Ice, Charles R. Willcox
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Patent number: 6499289Abstract: A gauge for measuring heat flux, especially heat flux encountered in a high temperature environment, is provided. The gauge includes at least one thermocouple and an anisotropic pyrolytic graphite body that covers at least part of, and optionally encases the thermocouple. Heat flux is incident on the anisotropic pyrolytic graphite body by arranging the gauge so that the gauge surface on which convective and radiative fluxes are incident is perpendicular to the basal planes of the pyrolytic graphite. The conductivity of the pyrolytic graphite permits energy, transferred into the pyrolytic graphite body in the form of heat flux on the incident (or facing) surface, to be quickly distributed through the entire pyrolytic graphite body, resulting in small substantially instantaneous temperature gradients. Temperature changes to the body can thereby be measured by the thermocouple, and reduced to quantify the heat flux incident to the body.Type: GrantFiled: March 29, 2001Date of Patent: December 31, 2002Assignee: Alliant Technologies Inc.Inventors: Robert C. Bunker, Mark E. Ewing, John L. Shipley
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Publication number: 20020196837Abstract: A multipoint temperature sensor for measuring fluid temperature in a duct includes multiple thermistors of equal resistance, spaced apart in a circuit. Each thermistor has a positive lead and a negative lead for connecting electrically with the circuit. Wires connect the thermistors such that half of the thermistors are placed in parallel with the other half of the thermistors. The total number of thermistors in the circuit is a perfect square. Shrinkwrap fits over the thermistors and the leads. Tabs disposed on bridging clips bend around the shrinkwrap and the wires on either side of each thermistor such that the tabs do not overlap the leads. All the wires between adjacent thermistors are contained in a single, plenum rated sheathing.Type: ApplicationFiled: June 26, 2001Publication date: December 26, 2002Applicant: Mamac Systems, Inc.Inventor: S. Asim Gul
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Patent number: 6485175Abstract: A thermowell assembly (20) shown in FIG. 2 is positioned in a pipeline (10) for sensing the temperature of the fluid medium in the pipeline (10) for transmitting the sensed temperature to a meter (12). A temperature sensing probe is received within a temperature conducting tube (36) forming a thermowell and having a plurality of annular fins (40) extending thereabout. In the embodiments of FIGS. 1-7, a liquid (50) is provided in an annular space between the thermocouple (28) and the temperature conducting tube (36). Non-metallic members (70, 74, 80) are positioned between the pipeline (10) and the temperature transmitting tube (36) to isolate thermocouple (28) from ambient changes in the temperature of metal pipeline (10) which may result in an error in the temperature of the flow medium sensed by the thermowell assembly (20). High temperature embodiments shown in FIGS.Type: GrantFiled: April 11, 2000Date of Patent: November 26, 2002Assignee: PGI International, Ltd.Inventors: Spencer M. Nimberger, Kevin J. Cessac
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Publication number: 20020131474Abstract: A temperature measuring device is the provided with which accurate temperature measurement is possible even when used in conditions of ice and snow, to which ice and snow do not readily adhere, and with which even when ice and snow do adhere, the temperature measuring device itself is not damaged. and the engine, or the like, are not damaged when the ice and snow detach.Type: ApplicationFiled: February 15, 2002Publication date: September 19, 2002Applicant: Yokogawa Denshikiki Co., Ltd.Inventor: Taro Suga
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Patent number: 6431824Abstract: A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.Type: GrantFiled: October 1, 1999Date of Patent: August 13, 2002Assignee: General Electric CompanyInventors: Margaret Jones Schotsch, Francis Lawrence Kirkpatrick, Eric Michael Lapine
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Publication number: 20020105999Abstract: In a method and an arrangement for acoustic determination of an instantaneous fluid temperature, acoustic velocity V in a fluid is monitored and an output signal related to the acoustic velocity is generated. A conventional temperature sensor senses a fluid temperature TS and generates an output signal related thereto.Type: ApplicationFiled: February 1, 2002Publication date: August 8, 2002Applicant: Siemens Elema ABInventors: Lars Wallen, Goran Skog
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Patent number: 6427260Abstract: A faucet thermal monitoring system for verifying the temperature of water being delivered through a faucet. The faucet thermal monitoring system includes a housing which is couplable to a spout of a faucet and thermally conductive such that heat is conducted between water flowing through the spout and the housing and a liquid crystal temperature panel coupled to the housing providing a visual indication of the temperature of the water flowing through the tap.Type: GrantFiled: December 29, 2000Date of Patent: August 6, 2002Inventor: Richard C. Osborne-Kirby
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Publication number: 20020071474Abstract: The present invention may be embodied in a device for detection of vulnerable plaque in a vessel. Vulnerable plaque is detected in the vessel based on a temperature increase of the vessel's wall.Type: ApplicationFiled: August 24, 2001Publication date: June 13, 2002Inventor: Randell L. Werneth
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Publication number: 20020067754Abstract: The present invention may be embodied in a device for detection of vulnerable plaque in a vessel based on a temperature increase of the vessel's wall. The device may be a guide wire having an extendable assembly having resilient delivery wires for placing the temperature sensor in contact with the vessel's inner wall.Type: ApplicationFiled: October 1, 2001Publication date: June 6, 2002Inventor: Randell L. Werneth