Moisture Content Or Vapor Pressure Patents (Class 73/29.01)
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Patent number: 8468883Abstract: A thermal type fluid flow sensor includes an air flow detecting portion and a temperature detecting portion formed above the same substrate, capable of correcting a humidity, and having a high measuring accuracy at a low cost, and a heat generating resistor, a temperature measuring resistor for the heat detecting resistor, a temperature measuring resistor for detecting an air flow, and a heat generating resistor for detecting a humidity are arranged in a diaphragm formed above a semiconductor substrate, an air cavity layer, and a protecting film above the air cavity layer are formed above the heat generating resistor for detecting the humidity, and the protecting film is provided with plural holes reaching the air cavity layer.Type: GrantFiled: October 8, 2010Date of Patent: June 25, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventor: Noriyuki Sakuma
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Publication number: 20130122928Abstract: Systems and methods for determining states and state changes on a personal wireless device, and triggering actions upon these state changes. The personal wireless device includes at least a user interface, a positioning system and a system to determine the device acceleration. Examples of these systems are an accelerometer to determine the device acceleration and GPS (Global Positioning System) to determine the device position. States incurred from user movement include, but are not limited to: walking, driving, stationary. In one embodiment, the location of a parked vehicle is automatically saved, and a user interface to display past parking locations and guide the user to one of these parking locations, is offered.Type: ApplicationFiled: October 26, 2012Publication date: May 16, 2013Inventor: Mark Oliver Pfluger
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Publication number: 20130113924Abstract: A plant observation device measures the growing state of a plant placed in a measurement area and the growth environment in the measurement area while moving within the measurement area where the plant is cultivated. The quantity of light is measured during growth environment measurement, and a light transmitting state of the measurement area is detected based on the measured quantity of light and the time of light quantity measurement. The measured growing state information and growth environment information are transmitted, together with positional information, to a server of a remote monitoring system. The growth environment in the measurement area is then optimally controlled based on the growing state information and the growth environment information.Type: ApplicationFiled: September 14, 2012Publication date: May 9, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Ae Kyeung MOON, Kyuhyung KIM
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Patent number: 8431276Abstract: A method for determining the water transfer in a water vapor transfer unit of a fuel cell system that employs a model based approach. The method includes determining a capacity ratio of wet streams and dry streams flowing through the water vapor transfer unit, determining the number of mass transfer units of the water vapor transfer unit, estimating a mass transfer effectiveness value given the capacity ratio and the number of mass transfer units for the water vapor transfer unit, and determining the amount of water transferred in the water vapor transfer unit using the mass transfer effectiveness value, the mass flow rates on a dry basis of the dry stream and the wet stream, and the mass flow rates of water of the dry inlet stream and the wet inlet stream.Type: GrantFiled: April 6, 2010Date of Patent: April 30, 2013Assignee: GM Global Technology Operations LLCInventors: Yan Zhang, John C. Fagley
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Patent number: 8394330Abstract: The present invention provides a class of sensors prepared from regions of conducting organic materials and conducting materials that show an increase sensitivity detection limit for amines. The present class of sensors have applications in the detection of spoiled food products and in testing for diseases, such as cholera and lung cancer, which have amines as biomarkers.Type: GrantFiled: October 1, 1999Date of Patent: March 12, 2013Assignee: The California Institute of TechnologyInventors: Nathan S. Lewis, Carol Lewis, Robert Grubbs, Gregory Allen Sotzing
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Publication number: 20130049971Abstract: A system for detecting cell failure within a battery pack based on variations in the measured electrical isolation resistance of the battery pack is provided. The system includes an electrical isolation resistance monitoring subsystem for monitoring the electrical isolation resistance of the battery pack; a system controller coupled to the isolation resistance monitoring subsystem that detects when the electrical isolation resistance falls below a preset value; and a cell failure response subsystem that performs a preset response upon receipt of a control signal from the system controller, where the control signal is transmitted when the electrical isolation resistance falls below the preset value. The system may include a secondary effect monitoring system, wherein the cell failure response subsystem performs the preset response when the electrical isolation resistance falls below the preset value and the secondary effect is detected by the secondary effect monitoring system.Type: ApplicationFiled: August 23, 2011Publication date: February 28, 2013Applicant: TESLA MOTORS, INC.Inventor: Weston Arthur Hermann
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Patent number: 8380446Abstract: A system for determining the phase envelope of a gas condensate includes a microfluidic device defining an entrance passageway, an exit passageway, and a microchannel in fluid communication with the passageways. The system includes an input sample bottle in fluid communication with the entrance passageway and a first pump associated with the input sample bottle for urging the gas condensate, in the input sample bottle, into the entrance passageway. The system further includes an output sample bottle in fluid communication with the exit passageway and a second pump associated with the output sample bottle for pressurizing the gas condensate, in the output sample bottle, into the exit passageway in opposition to the first pump. The system includes a temperature control device for controlling the temperature of the gas condensate in the microchannel. The first pump and the second pump operate to provide a desired pressure drop across the microchannel.Type: GrantFiled: June 14, 2010Date of Patent: February 19, 2013Assignee: Schlumberger Technology CorporationInventors: Farshid Mostowfi, Anil Singh, John Ratulowski
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Publication number: 20130032140Abstract: The invention provides a method of selecting a nebuliser device to be used to deliver a vaccine comprising selecting a nebuliser capable of producing a plurality of vaccine particles having the following particle droplet size distribution: (i) Dv10: 2.0+/?0.2 ?m (ii) Dv50: 5.0+/?0.5 ?m (iii) Dv90: 10.0+/?1.0 ?m (iv) a mean mass aerodynamic diameter (MMAD) of 4.5 to 8.0 ?m This allows the selection of, for example, commercially available nebulisers, previously used for drug delivery, for vaccine delivery. This considerably reduces the work required to identify suitable nebulisers. Nebulisers identified by the methods of the invention are also claimed.Type: ApplicationFiled: October 12, 2012Publication date: February 7, 2013Applicant: World Health OrganizationInventors: Felicity Cutts, Jorge FERNANDEZ DE CASTRO, John V. BENNETT, Beth LAUBE, Clyde WITHAM, Ana Maria HENAO-RESTREPO, Bernard COHEN, David BROWN, John DENNIS
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Publication number: 20130008232Abstract: The present invention relates to a system and a method for measuring humidity in a ventilated space (3) comprising humidity sensing means (10), a heating device (201), and a control system (301) having access to pre-stored values on saturation vapour content of air at different temperatures. The relative humidity, Hrel(T1), at a first temperature, T1, is measured, with the heating device inactivate. For TI a pre-stored saturation vapour content value, Vsat(T1), is found. A first absolute humidity value, Vc(T1), is calculated by multiplying the first saturation vapour content value by the first relative humidity value. A second relative humidity, Hrel(T2), at T2 is measured, with the heating device on, a second vapour content value, Hsat(T2), at T2 is found and a nominal relative humidity value, RIInom, is calculated by dividing the first absolute humidity value, Vc(T1), by the second saturation vapour content value, Vsat(T2).Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Inventor: Rikard Bergsten
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Patent number: 8336576Abstract: A compressed air supply system for motor vehicles includes a compressor, control electronics, an air dryer having an inlet channel for non-dried compressed air, an outlet channel for the dried compressed air, and a dehumidification device through which the compressed air to be dried can flow, a pressure regulator having an outlet valve for controlling the compressor between an idle phase and a load phase, a multi-circuit safety valve that is connected to the outlet channel of the air dryer via a compressed air line, and over-flow valves for the individual circuits, a regeneration valve and a moisture sensor for detecting the atmospheric moisture in the compressed air flowing in the compressed air line. To reduce the detrimental effects of admixtures and components of the compressed air on the moisture sensor, the moisture sensor is located in a bypass channel of the compressed air line.Type: GrantFiled: June 12, 2007Date of Patent: December 25, 2012Assignee: WABCO GmbHInventors: Heinrich Diekmeyer, Horst Heinrich, Bernd Strilka
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Patent number: 8325049Abstract: A method and apparatus for monitoring the quality of steam used in a process is disclosed. A pressure and temperature sensor is exposed to the steam on either side of an inline pressure drop device such as an orifice or pressure reducing valve. The measurements are transmitted to a controller that calculates the steam quality percentage or superheat value. An alarm is issued if the steam quality is beyond a predetermined tolerance.Type: GrantFiled: July 6, 2009Date of Patent: December 4, 2012Assignee: Thermo Diagnostics Company LLCInventor: Walter T. Deacon
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Patent number: 8301335Abstract: A system for controlling air-conditioning of a vehicle includes an input, an offset generator module, and an evaporator temperature control module. The input receives an input temperature. The offset generator module receives a psychrometric parameter of air inside the vehicle and generates offsets based on the input temperature and the psychrometric parameter. The evaporator temperature control module generates a target evaporator temperature based on the offsets.Type: GrantFiled: May 26, 2009Date of Patent: October 30, 2012Assignees: Chrysler Group LLC, Daimler AGInventors: Mark A. Hill, Alfred Jeckel, Curt O'Donnell, Mark Bigler, Lance Tagliapietra
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Patent number: 8268629Abstract: A system and method for characterizing a liquid hydrocarbon fuel having unknown or variable composition is described and shown herein.Type: GrantFiled: June 21, 2005Date of Patent: September 18, 2012Assignee: dTEC Systems L.L.C.Inventors: Thomas Coleman, Frederick Wolf, James E Bruya
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Publication number: 20120216992Abstract: A dew-condensation detecting apparatus includes a dew-condensation detector provided in a middle of a cold-liquid supply passage. The cold-liquid supply passage supplies a cooling liquid to electronic equipment. The dew-condensation detector detects dew condensation by detecting water droplets due to the dew condensation. A heating part heats the cooling liquid which has exited from the dew-condensation detector.Type: ApplicationFiled: December 20, 2011Publication date: August 30, 2012Applicant: Fujitsu LimitedInventors: Tsuyoshi SO, Hideo KUBO, Yoshinori UZUKA, Hideki MAEDA
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Patent number: 8236164Abstract: A moisture sensor, for measuring moisture in a building without leaving visible scars to the building surface, is provided. The moisture sensor includes a flexible carrier carrying an antenna for receiving EM-radiation between 9 kHz and 11 MHz and a resonant circuit including a moisture reactive element. The moisture reactive element includes a hygroscopic electrolyte arranged between a first and a second electrode, wherein the electrolyte in the presence of moisture forms mobile ions and provides a complex impedance at least in response to the alternating voltage, which complex impedance varies with the moisture content of the electrolyte.Type: GrantFiled: July 8, 2010Date of Patent: August 7, 2012Assignee: Acreo ABInventors: Göran Gustafsson, Xavier Crispin, Magnus Berggren, Oscar Larsson, Xiaodong Wang
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Patent number: 8192510Abstract: The invention relates to systems and methods for modifying the volatility of petroleum prior to ethanol addition. The methods can include (a) providing (i) a supply of gasoline, (ii) an ethanol standard, and (iii) a supply of butane; (b) analyzing the volatility of a sample formed by mixing the gasoline and ethanol standard; (c) calculating from the volatility a ratio of butane that can be blended into the sample without causing the sample to pass the one or more fixed volatility limits; and (d) blending butane from the butane supply with gasoline from the gasoline supply at or below the ratio calculated in step (c).Type: GrantFiled: September 29, 2009Date of Patent: June 5, 2012Assignee: Sunoco Partners Butane Blending LLCInventors: Larry D. Mattingly, Steven M. Vanderbur
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Patent number: 8171774Abstract: A hydrocarbon liquid-seal device is provided. The device includes first and second conduits in fluid communication with each other such that the first and second conduits define a flow path therethrough configured to pass a hydrocarbon vapor. The first and second conduits are in a spaced relationship and are not rigidly coupled to one another for isolating a vibration or movement respectively therein. The device further includes a liquid disposed within a space between first and second end portions of the first and second conduits, respectively, such that the liquid blocks the space between the first and second end portions and seals the hydrocarbon vapor in the flow path.Type: GrantFiled: November 6, 2008Date of Patent: May 8, 2012Assignee: FRAM Group IP LLCInventor: Gerard W. Bilski
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Publication number: 20120077019Abstract: A humidity barrier comprises a mixed matrix membrane, wherein the mixed matrix membrane comprises a polymer matrix with at least a hydrophobic surface, in which polymer matrix porous hydrophilic filler particles are dispersed. The hydrophobic surface may be formed either by hydrophobic polymer material itself or a hydrophobic coating may be provided on top of non-hydrophobic polymer material.Type: ApplicationFiled: September 26, 2011Publication date: March 29, 2012Applicant: STICHTING IMEC NEDERLANDInventors: Wout Knoben, Mercedes Crego Calama, Sywert Brongersma
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Patent number: 8141412Abstract: A method of detecting the dryness of wet steam of a once-through steam injection boiler, comprises: first, by detecting and/or calculating, obtaining volume flow of wet steam, corresponding volume flow of saturated liquid, and corresponding volume flow of saturated vapour; and then obtaining the dryness of wet steam of the once-through steam injection boiler, X, according to the following relationship equation: X = ; wherein are the volume flow of wet steam, the corresponding volume flow of saturated liquid, and the corresponding volume flow of saturated vapour respectively. A detecting apparatus for detecting dryness of wet steam of a once-through steam injection boiler, specifically comprises: a data detecting module 1, a data processing module 2, and a data displaying module 3, wherein the data processing module 2 connects the data detecting module 1 and the data displaying module 3.Type: GrantFiled: February 27, 2009Date of Patent: March 27, 2012Assignee: Liaoning Shihua UniversityInventors: Baodong Chen, Longshe Shen, Yongfei Yan, Taidong Jin
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Patent number: 8127761Abstract: A device for detecting the relative humidity in a respiratory circuit is provided which includes a housing closed towards the outside by a transparent element, and towards the inside by a membrane permeable to the humidified gas passing through the equipment to which the device is applied and wherein the housing includes a humidity indicator element.Type: GrantFiled: November 19, 2008Date of Patent: March 6, 2012Assignee: Covidien AGInventors: Camillo Belluzzi, Sarah Gallini, Massimiliano Solci
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Patent number: 8079248Abstract: A moisture sensor includes interdigitated first and second electrodes formed in trenches A porous low-k dielectric is provided between the electrodes. The electrodes are of Cu surrounded by a barrier layer to protect the Cu from corrosion. TiN may be used as barrier layer and selectively deposited barrier material such as CoWB, MoWB or NiMoP as barrier layer.Type: GrantFiled: October 24, 2006Date of Patent: December 20, 2011Assignee: NXP B.V.Inventors: Romano Hoofman, Julien Maurice Marcel Michelon
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Publication number: 20110307186Abstract: A system for determining the phase envelope of a gas condensate includes a microfluidic device defining an entrance passageway, an exit passageway, and a microchannel in fluid communication with the passageways. The system includes an input sample bottle in fluid communication with the entrance passageway and a first pump associated with the input sample bottle for urging the gas condensate, in the input sample bottle, into the entrance passageway. The system further comprises an output sample bottle in fluid communication with the exit passageway and a second pump associated with the output sample bottle for pressurizing the gas condensate, in the output sample bottle, into the exit passageway in opposition to the first pump. The system comprises a temperature control device for controlling the temperature of the gas condensate in the microchannel. The first pump and the second pump operate to provide a desired pressure drop across the microchannel.Type: ApplicationFiled: June 14, 2010Publication date: December 15, 2011Inventors: Farshid Mostowfi, Anil Singh, John Ratulowski
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Publication number: 20110295087Abstract: A biological information detection sensor is provided by which it is possible to integrate multiple detection means, and it is possible to measure the biological information that is necessary in accordance with the usage state of the sensor used by the user while avoiding redundant information.Type: ApplicationFiled: February 4, 2010Publication date: December 1, 2011Inventors: Shigeki Shinoda, Yasuhiro Sasaki, Masatake Takahashi, Hideki Ueda
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Publication number: 20110271741Abstract: An energy-autonomous sensor for detection of physical environmental parameters, having at least one sensor element, one storage element and one control circuit, with a timer circuit which is activated on reaching a predetermined electrical voltage on the storage element, activates the sensor and the control circuit at predetermined time intervals, and deactivates them after a predetermined operating time, such that this results in a time duration of sensor operation and a sensor operation pause.Type: ApplicationFiled: January 3, 2011Publication date: November 10, 2011Inventors: Wolf-Eckhart Bulst, Frank Schmidt, Oliver Sczesny
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Patent number: 8051701Abstract: Methods and systems for measuring atmospheric water content, are provided. The method includes measuring a first air temperature and a first air pressure at a first location in a compressor, measuring a second air temperature and a second air pressure at a second location in the compressor, computing a ratio of specific heats from the first and second air temperatures and the first and second air pressures, and determining an atmospheric water content from the ratio of specific heats.Type: GrantFiled: March 5, 2010Date of Patent: November 8, 2011Assignee: The Boeing CompanyInventors: Charles B. Spinelli, Brian J. Tillotson, Tamaira E. Ross
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Patent number: 8047056Abstract: One embodiment of the invention comprises a moisture vapor probe comprising a hollow sleeve and a removable electronics module. The probe has a generally cylindrical hollow sleeve having a sidewall with an inner surface and an outer surface. The sleeve comprises a sensor plate having a moisture vapor sensor and forming a water impermeable barrier with the sidewall. The sleeve has an opening such that a volume is defined by the opening, the sidewall and the sensor plate. The probe further comprises an electronics module removably disposable within the sleeve. The electronics module includes an information transfer unit. The information transfer unit in communication with the moisture vapor sensor and adapted to receive relative humidity information from the moisture vapor sensor.Type: GrantFiled: October 20, 2008Date of Patent: November 1, 2011Assignee: Construction Technology Laboratories, Inc.Inventors: Howard M. Kanare, Ed Wagner, Tim Duncan
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Patent number: 8030100Abstract: The application relates to a chemical sensor device comprising a substrate (1), a sensor medium (3) formed on the substrate, the sensor medium comprising one-dimensional nanoparticles, wherein the one-dimensional nanoparticles essentially consist of a semiconducting AxBy compound, e.g. V2O5 and detection means (2) for detecting a change of a physical property of the sensor medium e.g. conductivity. The porosity of the sensor medium supports a fast access of the analyte to the sensing material and therefore a fast response of the sensor. The selectivity and sensitivity of the sensor can be tailored by doping the one-dimensional nanoscale material with different dopants or by varying the dopant concentration. Sensitivity of the sensor device to an analyte, preferably an amine, can be increased by increasing relative humidity of the sample to at least 5%.Type: GrantFiled: March 26, 2009Date of Patent: October 4, 2011Assignee: Sony Deutschland GmbHInventors: Isabelle Besnard, Tobias Vossmeyer, Akio Yasuda, Marko Burghard, Ulrich Schlecht
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Publication number: 20110226041Abstract: A single chip wireless sensor comprises a microcontroller connected to a transmit/receive interface, which is coupled to a wireless antenna by an L-C matching circuit. The sensor senses gas or humidity and temperature. The device is an integrated chip manufactured in a single process in which both the electronics and sensor components are manufactured using standard CMOS processing techniques, applied to achieve both electronic and sensing components in an integrated process. A Low-K material with an organic polymer component is spun onto the wafer to form a top layer incorporating also sensing electrodes. This material is cured at 300° C., which is much lower than CVD temperatures. The polyimide when cured becomes thermoset, and the lower mass-to-volume ratio resulting in K, its dielectric constant, reducing to 2.9. The thermoset dielectric, while not regarded as porous in the conventional sense, has sufficient free space volume to admit enough gas or humidity for sensing.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Inventor: Timothy Cummins
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Publication number: 20110154882Abstract: Methods and systems for analyzing soybeans and, more particularly, for analyzing soybeans at the point of delivery such as a grain elevator or processing plant for a characteristic of the soybeans such as the ?-conglycinin protein content or the intensity of flavor of the soybeans.Type: ApplicationFiled: December 27, 2010Publication date: June 30, 2011Applicant: MONSANTO TECHNOLOGY LLCInventors: Luis A. Jurado, Joel E. Ream
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Publication number: 20110150549Abstract: The present invention provides an image forming apparatus having an upstream conveying portion, a downstream conveying portion, and a contact loop detection portion to detect a loop of the sheet formed between the upstream conveying portion and the downstream conveying portion, wherein the loop detection portion, includes a sensor that outputs the detection signal, a contact portion that protrudes into a sheet conveyance path between the upstream conveying portion and the downstream conveying portion as if to come into contact with the sheet conveyed through the sheet conveyance path and causes the sensor to output the detection signal by moving in contact with the sheet, and a contact force changing portion that changes a contact force with which the contact portion comes into contact with the sheet conveyed through the sheet conveyance path according to a type of the sheet conveyed through the sheet conveyance path.Type: ApplicationFiled: December 15, 2010Publication date: June 23, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Tooru Imaizumi, Daizo Fukuzawa, Mahito Yoshioka, Noriaki Sato, Munehito Kurata, Kuniaki Kasuga
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Publication number: 20110088454Abstract: A measuring sensor (1) for the selective determination of oil mist or aerosols makes possible gas analysis in the ambient air. The measuring sensor (1) is inserted into an adapter housing (11), and a vacuum, by which ambient air is drawn in via the gas inlet duct (8) of the measuring sensor (1), is generated in the adapter housing (11) by means of a gas delivery pump (15).Type: ApplicationFiled: July 26, 2010Publication date: April 21, 2011Applicant: Dräger Safety AG & Co. KGaAInventors: Andreas SEECK, Andreas MOHRMANN
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Patent number: 7922973Abstract: A combined unit of a humidity indicator and a desiccant pack is provided in which the humidity indicator (I) has one end portion bonded to one end portion of the desiccant pack (D) and can pivot around between a standby position (Ia) in which the indicator (I) overlaps one face of the desiccant pack (D) and an in-use position (Ib) in which it overhangs outside from one end edge (De) of the desiccant pack (D)), with the pivot center in the bonding portion or the vicinity thereof. This enables the humidity indicator to overlap the desiccant pack in the standby position when it is in an unused state, and after being enclosed within a packaging bag the humidity indicator and the desiccant pack can be kept as far away from each other as possible within the packaging bag, thus enabling detection of the humidity of the interior of the bag to be carried out precisely and appropriately.Type: GrantFiled: May 24, 2007Date of Patent: April 12, 2011Assignee: AP Tech Corp.Inventor: Yoichi Yamakawa
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Patent number: 7892983Abstract: Disclosed is a substrate processing apparatus, comprising a processing chamber, a holder to hold at least a plurality of product substrates, a heating member, a supplying member to alternately supply at least a first reactant and a second reactant, and a control unit, wherein the control unit executes forming thin films on the substrates by supplying the first reactant, removing a surplus of the first reactant after the first reactant has been adsorbed on the product substrates, subsequently supplying the second reactant, to cause the second reactant to react with the first reactant adsorbed on the substrates, and executes the forming the thin films in a state where a number of the product substrates is insufficient when a number of the product substrates is less than a maximum number of the product substrates which can be held by the holder.Type: GrantFiled: October 5, 2005Date of Patent: February 22, 2011Assignee: Hitachi Kokusai Electric Inc.Inventors: Hironobu Miya, Taketoshi Sato, Norikazu Mizuno, Masanori Sakai, Takaaki Noda
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Patent number: 7882725Abstract: An energy-autonomous sensor for detection of physical environmental parameters, having at least one sensor element, one storage element and one control circuit, with a timer circuit which is activated on reaching a predetermined electrical voltage on the storage element, activates the sensor and the control circuit at predetermined time intervals, and deactivates them after a predetermined operating time, such that this results in a time duration of sensor operation and a sensor operation pause.Type: GrantFiled: June 24, 2008Date of Patent: February 8, 2011Assignee: Enocean GmbHInventors: Wolf-Eckhart Bulst, Frank Schmidt, Oliver Sczesny
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Publication number: 20110019373Abstract: The invention relates to an arrangement for sensing ambient conditions in electric equipment. These conditions may include verification of the user, the location of the equipment and various properties of the environment. The invention is preferably applied in mobile terminals. One idea of the invention is to provide a sensor arrangement with a substrate (663) that forms at least part of a sensor, and also serves as a substrate for other sensors (695-698). The substrate is preferably flexible so that it can be formed in a shape which is follows the shape of the device cover. The invention also describes a way to create two- or three-dimensional electrode structures that can be used to optimize the performance of the sensor. When the surface structure is designed to follow the shape of a finger, a very small pressure is required when sliding the finger along the sensor surface. This way the use of the sensor is ergonomic and the measurement is made very reliable.Type: ApplicationFiled: October 7, 2010Publication date: January 27, 2011Inventors: Tapani Ryhänen, Kari Hjelt
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Patent number: 7864063Abstract: An especially simple and economical moisture sensor with temperature compensation is provided. To this end, in addition to a measuring capacitor, a second capacitor is arranged on a window of a motor vehicle, wherein the second capacitor is not affected by the moisture and/or water droplets. For analysis, a differential measurement of the capacitances of the measuring capacitor and of the second capacitor is carried out, from which is determined a degree of wetting of the window not influenced by the window temperature.Type: GrantFiled: January 22, 2008Date of Patent: January 4, 2011Assignee: Preh GmbHInventor: Maik Rienecker
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Publication number: 20100312453Abstract: The present invention provides, with reference to FIG. 1, an internal combustion engine (10) having a fuel injector which comprises a sprung piston (55) or a resilient diaphragm piston (8155) and an electrical coil (57, 8158) for displacing the piston (55, 8155). The piston draws fuel into and expels fuel from a pumping chamber (52, 8152). The number of operations of the injector per engine cycle is controlled by an electronic controller (23, 8159) to control the quality of fuel delivered per cycle to a combustion chamber. A voltage measured in the coil (52, 8158) by movement of the piston under action of the spring or due to its own resilience is used to give an indication of vapour pressure of the fuel. A device akin to the injector can be used to draw fuel from a pipeline to measure the vapour pressure of the fluid.Type: ApplicationFiled: September 22, 2008Publication date: December 9, 2010Applicant: Scion-Sprays LimitedInventor: Benjamin David Smither
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Patent number: 7833481Abstract: A fully integrated portable screening system includes a main housing and a contact pad. The contact pad is removably positioned in the main housing and covered by at least one sample sheet. The contact pad is preferably constituted by a cylindrical baton which carries a roll of sample collection sheets. A test subject interacts with the contact pad, leaving a trace sample on the sample collection sheet. The contact pad is then placed within the main housing and the trace sample is exposed to a test medium designed to interact with a specific analyte of interest potentially present in the trace sample. After exposure to the test medium, the sample sheet is subjected to a testing mechanism which exposes any interaction between the test medium and the analyte of interest to produce a test result.Type: GrantFiled: September 22, 2006Date of Patent: November 16, 2010Assignee: RedXDefense, LLCInventors: Khaled F. Eltomi, Jack Kotowicz, Pratheev Sabaratnam Sreetharan, Regina Elvira Dugan
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Patent number: 7794140Abstract: A method and system for monitoring the quality of a given gas mixture being transmitted under pressure by throttling a sample of the gas mixture to a representative pressure and measuring the hydrocarbon dew point of the sample at the representative pressure. The measured hydrocarbon dew point is indicative of the cricondentherm of the gas mixture. The representative pressure is pre-selected to provide a pre-selected margin of error between measured hydrocarbon dew points of a set of representative gas mixtures at the representative pressure and respective cricondentherms of the set of representative gas mixtures.Type: GrantFiled: February 7, 2008Date of Patent: September 14, 2010Assignee: Transcanada Pipelines LimitedInventors: Kamal Botros, Steve Hall, John Geerligs
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Patent number: 7779672Abstract: The invention is a method and device for measuring the minimum miscibility pressure of two phases having application for enhanced oil recovery or CO2 geologic storage. In a pressure cell, gas is bubbled into a liquid, or conversely, liquid is dripped into a gas. The presence of bubbles or of drops is detected through the differential pressure variation measured between the inside of the cell and an injected phase injection line. This measurement is performed by means of a very accurate differential pressure sensor, for various pressures imposed within the cell. A relation between the number of bubbles or of drops formed per time unit and pressures within the cell is deduced therefrom. The minimum miscibility pressure of the two phases then corresponds to the pressure for which the inverse of the number of bubbles or of drops is zero, which is deduced by extrapolation of the relation.Type: GrantFiled: October 17, 2007Date of Patent: August 24, 2010Assignee: IFPInventor: Michel Robin
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Patent number: 7770449Abstract: A resistive-type humidity sensing structure with microbridge includes a substrate, a sensing portion, and two measuring electrodes. An isolated layer and a bridge are respectively formed on the substrate. The sensing portion includes a resistive and humidity sensing layer. Two measuring electrodes are formed on the resistive sensing layer corresponding to the bridge, so as to fix the sensing portion on the first isolated layer for measuring resistance values of the resistive sensing layer. The material of the humidity sensing layer changes its volume according to humidity, the length of the resistive sensing layer covered by the humidity sensing layer is warped, and the changes of the length of the material for the resistive sensing layer causes variations of the resistance value. Finally, two measuring electrodes are used to measure the humidity value.Type: GrantFiled: June 12, 2007Date of Patent: August 10, 2010Assignee: Industrial Technology Research InstituteInventors: Jung-Tai Chen, Chia-Yen Lee, Yii-Tay Chiou, Chun-Hsun Chu
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Patent number: 7757543Abstract: A method and system of monitoring environmental exposure of stents using radiofrequency identification is disclosed.Type: GrantFiled: July 13, 2006Date of Patent: July 20, 2010Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Abigail Freeman, David C. Gale, Bin Huang, Daniel Castro
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Publication number: 20100178437Abstract: A gas, which has extremely low oxygen and water content without particles for industrial use and is effective in processes including an oxidation preventing step, can be supplied in a large quantity. An apparatus for generating such gas having extremely low oxygen/water content is provided with an oxygen molecule discharging apparatus (26) comprising a hollow ceramic solid electrolyte body (21), through which a gas passes, and metal tube bodies (20), all of which are adhered to each other in a leak-tight manner.Type: ApplicationFiled: March 14, 2008Publication date: July 15, 2010Inventors: Naoki Shirakawa, Yoshida Yoshiyuki, Endo Kazuhiko, Mino Tetsuya
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Publication number: 20100154512Abstract: Methods and systems for measuring atmospheric water content, are provided. The method includes measuring a first air temperature and a first air pressure at a first location in a compressor, measuring a second air temperature and a second air pressure at a second location in the compressor, computing a ratio of specific heats from the first and second air temperatures and the first and second air pressures, and determining an atmospheric water content from the ratio of specific heats.Type: ApplicationFiled: March 5, 2010Publication date: June 24, 2010Applicant: THE BOEING COMPANYInventors: Charles B. Spinelli, Brian J. Tillotson, Tamaira E. Ross
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Publication number: 20100116047Abstract: 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: ApplicationFiled: January 21, 2010Publication date: May 13, 2010Applicant: Rosemount Aerospace, Inc.Inventor: John A. Severson
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Patent number: 7698927Abstract: Methods and systems for measuring atmospheric water content, are provided. The method includes measuring a first air temperature and a first air pressure at a first location in a compressor, measuring a second air temperature and a second air pressure at a second location in the compressor, computing a ratio of specific heats from the first and second air temperatures and the first and second air pressures, and determining an atmospheric water content from the ratio of specific heats.Type: GrantFiled: January 30, 2007Date of Patent: April 20, 2010Assignee: The Boeing CompanyInventors: Charles B. Spinelli, Brian J. Tillotson, Tamaira E. Ross
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Patent number: 7643941Abstract: A system and method for providing a statistical measure of the size of liquid water droplets in a cloud, as well as a system and method for the detection and/or measurement of the presence of a cloud, liquid water content in the cloud and ice water content in the cloud, among other parameters.Type: GrantFiled: January 11, 2006Date of Patent: January 5, 2010Assignee: Science Engineering Associates, Inc.Inventors: Lyle E. Lilie, Christopher P. Sivo, Daniel B. Bouley
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Patent number: 7631538Abstract: A method and equipment for measuring vapour flux from a surface (10) e.g. the rate of water loss from human skin, which is useful in the evaluation of the efficiency of the skin/water barrier. It uses a closed cylinder (12), which is placed against the skin and by measuring the temperature and relative humidity within the cylinder by means of sensors (13, 14) positioned adjacent the wall of the cylinder, the water vapour flux can be determined.Type: GrantFiled: January 22, 2003Date of Patent: December 15, 2009Assignee: South Bank University Enterprizes Ltd.Inventor: Robert E. Imhof
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Publication number: 20090272176Abstract: One embodiment of the present invention provides a system that estimates the relative humidity inside a computer system. During operation, a set of performance parameters of the computer system and an external relative humidity outside of the computer system are monitored. Then, the relative humidity inside the computer system is estimated based on the set of performance parameters, the external relative humidity, and a relative humidity model, wherein training of the relative humidity model includes measuring an external training relative humidity outside of the computer system and a training relative humidity inside the computer system while monitoring the set of performance parameters of the computer system.Type: ApplicationFiled: May 2, 2008Publication date: November 5, 2009Applicant: SUN MICROSYSTEMS, INC.Inventors: Leoncio D. Lopez, Kenny C. Gross, Kalyanaraman Vaidyanathan
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Publication number: 20090266142Abstract: Systems and methods for determining an NH3 concentration in exhaust gases from an engine are provided. In one exemplary embodiment, a method includes generating a first signal from an NH3 sensor fluidly communicating with the exhaust gases. The method further includes generating a second signal from an air humidity sensor disposed proximate to an air intake manifold of the engine indicating a humidity level. The method further includes determining an air/fuel ratio associated with the engine. The method further includes determining an NH3 deviation value in a calibration table based on the second signal and the air/fuel ratio, utilizing a controller. The method further includes determining an NH3 concentration value based on the first signal and the NH3 deviation value, utilizing the controller. The NH3 concentration value is indicative of the NH3 concentration in the exhaust gases. The method further includes storing the NH3 concentration value in a memory device, utilizing the controller.Type: ApplicationFiled: April 25, 2008Publication date: October 29, 2009Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Da Yu Wang, Sheng Yao