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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8166800 | Gas concentration detection apparatus and gas concentration detection system A gas concentration detection apparatus and system including a gas sensor. Voltage Vd generated across detection resistor Rd through which pump current Ip flows is differentially amplified by OP1, and offset voltage Vofs is superposed thereon to obtain a dete... | 05/01/2012 |
| 8156790 | Sensor and method of producing sensor The present invention provides a sensor capable of maintaining an electrical connection between the lead frame and an electrode terminal section of the detection element even when an inadequate external force is applied to a lead frame and a sensor production method... | 04/17/2012 |
| 8136385 | Cantilevered probes having piezoelectric layer, treated section, and resistive heater, and method of use for chemical detection The invention provides a liquid cell for an atomic force microscope. The liquid cell includes a liquid cell housing with an internal cavity to contain a fluid, a plurality of conductive feedthroughs traversing the liquid cell housing between the internal cavity and ... | 03/20/2012 |
| 8132444 | Protective heated screen for element A protective heated screen for an element of a sensor surrounds a portion of the element and reduces and/or minimizes the propensity for liquid droplets to come in contact with the heated element. The screen can allow fluid flow therethrough to allow the sensor elem... | 03/13/2012 |
| 8127594 | Gas sensor A gas sensor including: a gas sensing element including first and second ceramic layers. The first ceramic layer has a first through hole and a first through hole conductor covering an inner surface thereof. The first ceramic layer includes a first conductor which i... | 03/06/2012 |
| 8109130 | Apparatus and process for sensing fluoro species in semiconductor processing systems A gas detector and process for detecting a fluorine-containing species in a gas containing same, e.g., an effluent of a semiconductor processing tool undergoing etch cleaning with HF, NF3, etc. The detector in a preferred structural arrangement employs a ... | 02/07/2012 |
| 8074490 | Clandestine grave detector An apparatus and a method for detecting a burial site of human remains are disclosed. An air stream is drawn through an air intake conduit from locations near potential burial sites of human remains. The air stream is monitored by one or more chemical sensors to det... | 12/13/2011 |
| 8042380 | Gas sensor A gas sensor has a sensor element, extending axially, that detects a particular gas component in a gas under measurement, a metal housing causing the end of the sensor element to protrude farther than the end thereof to expose it to the gas under measurement and tha... | 10/25/2011 |
| 8024959 | Gas sensor and gas detection method A gas sensor contains such a dielectric substance having a domain boundary formed between domains with different polarization directions. When a gaseous molecule is adsorbed to the dielectric substance, a transient current is generated due to displacement of the dom... | 09/27/2011 |
| 8011224 | Method and device for detecting and identifying chemical agents A feeding device for enriching and feeding a fluid sample into a chemical detector, the feeding device comprises (a) a sorbent element having a sorbent material for sorbing at least one target chemical present in the fluid sample; (b) a desorbing mechanism for gener... | 09/06/2011 |
| 7946153 | Method for measuring gases and/or minimizing cross sensitivity in FET-based gas sensors A gas sensor based on a field effect transistor (“FET”) evaluates both a change in work function of a gas-sensitive layer of the FET and a change in the capacitance of the layer. Thus, two physically independent signals are read from the gas-sensitive layer, eac... | 05/24/2011 |
| 7913542 | Isolated gas sensor configuration A gas sensor assembly detects a constituent in a gaseous stream. The assembly comprises: (a) a mounting surface, (b) a sensor mounted on the mounting surface and sensor capable of generating a detectable signal in the presence of the constituent, and (c) an enclosin... | 03/29/2011 |
| 7886579 | Portable sampler A portable sampler for use in an explosion-endangered area, having a housing, in which at least the following components are arranged: a pump unit having a first drive unit, a sensor for determining the amount of sample supplied from the pump unit, a control unit, w... | 02/15/2011 |
| 7870777 | Gas sensor A gas sensor having an axis including a detecting element; a metal shell; an outer cylinder; and a plug member, as defined herein, and the gas sensor includes a first protective member that covers an air vent of the plug member so as to protect the filter member, th... | 01/18/2011 |
| 7841226 | Proboscis extension reflex platform for volatiles and semi-volatiles detection The present invention provides an apparatus for the detection of volatile and semi-volatile chemicals using the olfactory abilities of honey bees that are trained to respond to the presence of a specific chemical in a sample of gas with the proboscis extension refle... | 11/30/2010 |
| 7836752 | Magnetic gas sensor and methods using antiferromagnetic hematite nanoparticles A nanoscale antiferromagnetic gas sensing apparatus and methods of measuring gas using the apparatus are described. The use of the magnetic properties of an antiferromagnetic material as gas sensing parameters explores the concept of magnetic gas sensing. According ... | 11/23/2010 |
| 7827851 | Packaging structure of gas detector and method for making the same The present invention provides a packaging structure of a gas detector and the method for making the same. The packaging structure of the gas detector includes a printed circuit board, a detection device and a ventilation cover. The detection device is attached to t... | 11/09/2010 |
| 7739898 | System and method for operating an exhaust gas sensor system An exhaust gas sensor system includes an inner chamber disposed around a sensor element. The inner chamber has either a cylindrical shape or a frusto-conical shape. The system further includes an outer chamber disposed substantially around the inner chamber to redir... | 06/22/2010 |
| 7712349 | Gas sensor The object of the present invention is to provide a gas sensor in which a gas detection element is mounted on a wiring substrate; in which a protective cap having gas inlets formed therein is attached to the wiring substrate; and which has a structure capable of eff... | 05/11/2010 |
| 7707869 | FET-based gas sensor An operating method is disclosed for the selective detection of a target gas in a gas mixture to be measured by a field effect transistor with a gas-sensitive layer disposed on a carrier substrate, wherein the gas mixture to be measured is prepared by an electrochem... | 05/04/2010 |
| 7677082 | Solid state gas sensors based on tunnel junction geometry A gas detector utilizing tunnel junction geometry is disclosed. The gas detector comprises a first electrically conductive material layer, an electrically nonconductive material layer disposed on the first electrically conductive material layer, a second electricall... | 03/16/2010 |
| 7665345 | Gaseous product detecting device A gaseous product detecting device (1; 20; 30; 40; 70) has a measuring cell (6; 59; 60), a filtering element (3; 45) for retaining particulate present in the air entering the measuring cell (6; 59, 60), and a detecting element (13; 50,... | 02/23/2010 |
| 7637145 | Gas sensor for use in detecting concentration of gas A gas sensor comprises a sensing element detecting a gas concentration, a heater heating up the sensing element, an element-holding body holding the sensing element, and an atmosphere-side insulator. A pair of contact fittings is arranged between a base end part of ... | 12/29/2009 |
| 7631539 | Gas sensor production method and gas sensor A method of producing a gas sensor is provided. The method includes a disposition step of preparing an elastic seal member having a main body portion and a smaller diameter portion that is smaller in outer diameter than the main body portion, disposing the entire ma... | 12/15/2009 |
| 7610794 | Particle detection sensor, method for manufacturing particle detection sensor, and method for detecting particle using particle detection sensor A compact sensor with which particles floating in the air can be easily detected. A sensor having a microstructure which detects a detection object by contact is used. A microstructure has an opening to be a detection hole corresponding to the size of a detection ob... | 11/03/2009 |
| 7607339 | Ceramic laminate body, gas sensor element and related manufacturing method A ceramic laminate body, a gas sensor element employing such a ceramic laminate body and related manufacturing method are disclosed as including first and second ceramic sheets, made of material compositions different from each other, and an intermediate bonding lay... | 10/27/2009 |
| 7607340 | Gas sensor In a protector (100) for protecting a detecting portion (11) of a sensor element (10) of a gas sensor (1), the opening area of individual inner introduction holes (130) and (140) formed in an inner protector (120) is ... | 10/27/2009 |
| 7584647 | Structure of gas sensor designed to ensure stability of waterproofing and air ventilation A gas sensor designed to ensure waterproofing and air ventilation is provided which includes a rubber bush fitted in an end of an air cover joined to a housing. The rubber bush has formed in a base portion thereof lead-pass holes and in a top portion thereof an air ... | 09/08/2009 |
| 7584648 | Gas sensor containing a protective tube A gas sensor for determining a physical characteristic of a measurement gas, in particular its temperature or the concentration of a gas component in a gas mixture, having a sensor element that has end segments at the side of the measurement gas and at the side of t... | 09/08/2009 |
| 7568378 | Sensor A sensor including: a detecting element (4) as defined herein; a plurality of metallic terminal members (10, 211, 221, 231, 268) as defined herein; and an insulating separator (82) as defined herein, wherein the insulating separator includes: an... | 08/04/2009 |
| 7565827 | Thin film gas sensor configuration A gas sensor for sensing a gas stream constituent includes, mounted a substrate, a first gas-sensing element capable of sensing the constituent in a first concentration range, a reference element insensitive to the constituent and having electrical properties congru... | 07/28/2009 |
| 7559229 | Gas sensor with increased water-incursion resistance and method of operating gas sensor A gas sensor and a related method operating are disclosed as having a concentration sensing element for detecting a concentration of a specified gas component in the measuring gases. A housing supports the concentration sensing element and a cover body structure, wh... | 07/14/2009 |
| 7546758 | Anti-corrosion structure of gas sensor An anti-corrosion structure of a gas sensor is provided. The gas sensor includes a hollow cylindrical air cover assembly made up of an inner and an outer cover. The air cover assembly has formed therein air inlets through which air is admitted into the gas sensor. T... | 06/16/2009 |
| 7520160 | Electrochemical sensor An electrochemical sensor for measuring contents of a fluid or gas at high pressure and/or high temperature, for use, for example, in a wellbore for hydrocarbon applications, is provided. The sensor includes: a bulkhead-like electrode assembly including a cylindrica... | 04/21/2009 |
| 7506534 | Gas sensor and method of manufacturing the gas sensor An object is to provide a gas sensor which can suppress positional shift of a to-be-held member such as a gas detection element, as well as a method of manufacturing the gas sensor. A gas sensor (101) includes a gas detection element (111), a metallic ... | 03/24/2009 |
| 7497109 | Structure of gas sensor designed to minimize damage to porcelain insulators A gas sensor made up of a sensor element and a first and a second hollow cylindrical porcelain insulators covering the sensor element. The first porcelain insulator is laid on the second porcelain insulator in alignment within a body of the gas sensor. A base end su... | 03/03/2009 |
| 7484402 | Gas sensor A gas sensor having a housing, a first insulation porcelain, a metal sealing member interposed between a seat surface of the housing and a contacting surface of the first insulation porcelain. The metal sealing member is made of a Fe-based alloy of containing 10 wt ... | 02/03/2009 |
| 7475588 | Apparatus and process for sensing fluoro species in semiconductor processing systems A gas detector and process for detecting a fluorine-containing species in a gas containing same, e.g., an effluent of a semiconductor processing tool undergoing etch cleaning with HF, NF3, etc. The detector in a preferred structural arrangement employs a ... | 01/13/2009 |
| 7434450 | Method and apparatus for detecting exhaust gas sensor defect An air-fuel ratio sensor that outputs a sensor signal used for the feedback control of an air-fuel ratio is provided. It is determined whether an element crack is present by applying a reverse voltage to the air-fuel ratio sensor. The value of the sensor signal outp... | 10/14/2008 |
| 7434448 | Sensor A sensor for determining a physical property such as the concentration of a gas component or the temperature of a measuring gas, e.g., the exhaust gas of internal combustion engines, has a sensor element which is secured in a housing and is surrounded at an end sect... | 10/14/2008 |
