Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8153067 | Circuit with at least one catalytic measuring element A circuit with at least one catalytic measuring element (1), in which the at least one catalytic measuring element (1) is connected to a supply voltage (5) without a protective resistor and without a thermal safety device arranged upstream. The ... | 04/10/2012 |
| 8057741 | Gas sensor assembly A gas sensor assembly may include a housing defining a chamber. A gas sensor may be mounted in the chamber. An inlet tube may be secured to the housing and extend into the chamber of the housing. The inlet tube may define a passage providing fluid communication betw... | 11/15/2011 |
| 8043566 | Method and apparatus for analyzing mixtures of gases Disclosed herein is a method and apparatus for analyzing, sensing and measuring information related to the concentrations of various gases, including NOx, hydrocarbons, carbon monoxide and oxygen, in a multi-component gas system using chemical sensors and... | 10/25/2011 |
| 7947226 | Catalytic combustion type gas sensor, sensing element and compensating element for the same A sensing element for catalytic combustion type gas sensor includes: a heat conducting layer (12); a heater coil (13) buried in the heat conducting layer (12); and a combustion catalyst layer (11) coating or carried by a surface of the he... | 05/24/2011 |
| 7833482 | Low power combustible gas sensor A low power consumption catalytic gas sensor includes three beads. A trigger bead, which is smaller than either a sensing on a compensating bead can be monitored for the presence of a combustible gas. Where gas has been sensed, the sensing and compensating beads can... | 11/16/2010 |
| 7713480 | Heater coil for gas sensor, detection element for gas sensor, contact combustion type gas sensor, and method for manufacturing contact combustion type gas sensor A lead portion (25) of a heater coil (22) is constituted of a single coil wound into a coil and a bead portion (24) is constituted of a double coil formed by further winding the single coil into a coil. By constituting a detecting element (2 | 05/11/2010 |
| 7479255 | Gas sensor A hydrogen sensor 25 has a fitting base plate 29 in which a gas-sensing chamber 34 is formed, a specimen gas intake 35 formed on said fitting base plate 29, opening toward an exit passage 24 and introducing hydrogen gas into... | 01/20/2009 |
| 7402284 | Orientation device for a gas analyzer A method and apparatus for determining the orientation of a gas analyzer. Because condensation can build-up in a filter of the gas analyzer, it needs to be purged from the analyzer so that accurate readings can be made. By having a orientation device built-in, the a... | 07/22/2008 |
| 7395692 | Portable gas meter A portable, preferably explosion-proof gas meter is improved in respect to shock loads and has a cylindrical measuring cell (5) and an evaluating circuit on a printed circuit board (6). The measuring cell (5) is connected to the printed circuit ... | 07/08/2008 |
| 7387764 | Contained oxygen analyzing apparatus and contained analyzing method An apparatus for analyzing the amount of gas in a solid sample such as a contained oxygen analyzing apparatus and method utilizing a preliminary reducing furnace which can be connected to an analyzing furnace by a transfer unit. A sample such as steel can be reduced... | 06/17/2008 |
| 7374722 | System for taking a gas sample able to contain particles of suspended materials The sampling system of the invention includes a column comprising a first separator associated with a first collector so as to extract particles whose diameter is larger than a first diameter, and a second separator associated with a second collector which eliminate... | 05/20/2008 |
| 7361313 | Methods for uniform metal impregnation into a nanoporous material The methods, systems 400 and apparatus disclosed herein concern metal 150 impregnated porous substrates 110, 210. Certain embodiments of the invention concern methods for producing metal-coated porous silicon substrates 110, 210 that exhi... | 04/22/2008 |
| 7357015 | Gas concentration sensor, hydrogen purification unit using this and fuel cell system In order to provide a step capable of reliably detecting a CO concentration in a reformed gas at low cost and a hydrogen purifier capable of fully exerting a function of a CO purifying catalyst, a gas concentration detector comprising a reaction chamber which has a ... | 04/15/2008 |
| 7337607 | Method of dispensing fuel into transient flow of an exhaust system A system or method for controlling the delivery of fuel into the transient flow of an exhaust system to control emissions. A mathematical model representative of the exhaust system can be used to determine, based on operating conditions of the exhaust system, a rate... | 03/04/2008 |
| 7333204 | Method and device for analysing a gas likely to contain particles or suspended aerosols The present method uses a spectrophotometric and/or ionisation detection device in which the gas to be analyzed and illuminated by a light source emitting in a range of wavelengths distinct from the one used for spectrophotometry so as to carry out a nephelometric a... | 02/19/2008 |
| 7331092 | Method and manufacturing surface acoustic wave device A method of manufacturing a surface acoustic device that has a surface acoustic wave filter including comb-like electrodes, electrode pads, and wiring patterns formed on a joined substrate produced by joining a piezoelectric substrate and a supporting substrate to e... | 02/19/2008 |
| 7329389 | Sensor device and method for qualitative and quantitative analysis of gas phase substances New sensors and methods for qualitative and quantitative analysis of multiple gaseous substances simultaneously with both high selectivity and high sensitivity are provided. The new sensors rely on a characteristic difference in energy between the interaction of a p... | 02/12/2008 |
| 7297549 | Method of determining measurement bias in an emissions monitoring system A method of determining bias in a measurement of a constituent concentration level in a sample gas is provided. The method comprises establishing a sample gas flow from an emission stream into a sample gas line of an emissions monitoring system. The method further c... | 11/20/2007 |
| 7279140 | Catalytic converter with integral oxygen sensor An exhaust system comprising a catalytic converter unit, a bushing element provided in a shell wall of the catalytic converter unit, and an oxygen sensor positioned within exhaust flow of the catalytic converter unit and extending through the bushing element and hav... | 10/09/2007 |
| 7255834 | Method and devices for improving the dynamic flash combustion reaction connected with gas chromatography for the elemental analysis of C H N S O A method and device are provided for dynamic flash combustion reaction connected with gas chromatography for the elemental analysis of C H N S O in an automatic elemental analyzer. A combustion reactor is provided with a sampling device and an oxygen feed line. Cont... | 08/14/2007 |
| 7254984 | Sensor A sensor for measuring a physical property of a measuring gas, in particular the oxygen concentration or the temperature in the exhaust gas of an internal combustion engine in a motor vehicle, has a housing, a measuring element whose end section protrudes from the h... | 08/14/2007 |
| 7255836 | Analytical sensitivity enhancement by catalytic transformation A device and method for quantifying an impurity in an input gas stream. The device and method employ a catalyst to convert the impurity to a detectable species in an output gas stream, and the concentration of the detectable species is then measured by means of a de... | 08/14/2007 |
| 7251552 | Diagnostic display unit including replaceable display protector A vehicle diagnostic display unit including a case, a display screen disposed within a front portion of the case, and a main support coupled to a side of the case for allowing a user to lift the vehicle diagnostic display unit with one hand. A navigation pad is disp... | 07/31/2007 |
| 7241424 | Apparatus for screening catalysts in a parallel fixed-bed reactor The present invention discloses an apparatus and method for rapid analysis of members of a combinatorial library. The apparatus includes a plurality of vessels for containing individual library members and a fluid handling system that apportions a test fluid about e... | 07/10/2007 |
| 7231807 | Gas measuring device and method with compensation of disturbances Disclosed is a gas measuring device which comprises compensation of disturbances and offers high accuracy of measurement immediately after being activated. Said gas measuring device is provided with a gas sensor (1) for generating a measuring signal (S1 | 06/19/2007 |
| 7229833 | Method and a device for measuring, by photo-spectrometry, the concentration of harmful gases in the fumes through a heat-producing plant A method for measuring the concentration of harmful gases in flue gases through a heat-producing plant that includes a combustion space and a device located downstream of the combustion space, the device includes tubes, through which for instance water, steam or air... | 06/12/2007 |
| 7223328 | Sensors for reducing gas molecules Provided is a gas molecule sensor, characterized in that the sensing element is a polycrystalline tin oxide film having a thickness less than 1 μm. The sensing element is produced by electrolytic deposit of a tin film on an insulating support in an electromechanica... | 05/29/2007 |
| 7223607 | Process and device for the detection of hydrocarbons in a gas The invention relates to a process for the detection of hydrocarbons other than methane in a gas predominantly or essentially comprising oxygen, as well as methane and the said hydrocarbons other than methane, the said process comprising: ... | 05/29/2007 |
| 7223946 | Method and device for control and diagnosis for the heating of a lambda probe A method for controlling and regulating an electrical heating of a probe situated in the exhaust system of an internal combustion engine, a total heating power of the probe being set, and an actual temperature value of the probe being determined by measuring a chara... | 05/29/2007 |
| 7211222 | Gas sensor A powder filler is stuffed in a filler space defined between a housing and a gas sensing element so as to airtightly seal a clearance between the housing and the gas sensing element. The powder filler contains grains whose diameter is in a range from 80 μm to 5,000... | 05/01/2007 |
| 7201877 | Device and method for detecting sulfuryl fluoride A device for detecting sulfuryl fluoride, in which the gas specimen to be examined is subjected to pyrolysis with ensuing detection of a pyrolysis product, is to be improved for the sake of achieving a mobile, economical structure. To attain this object, in a prelim... | 04/10/2007 |
| 7193187 | Feedback control system and method for maintaining constant resistance operation of electrically heated elements The present invention relates to a system and method for controlling electrical heating of an element to maintain a constant electrical resistance, by adjusting electrical power supplied to such element according to an adaptive feedback control algorithm, in which a... | 03/20/2007 |
| 7189363 | Gas detector Of a gas detector 100, a chamber 105 formed between a center cover 150 and a cover 160 is a part of an air flow channel AF. A first shielding plate 165 is provided in the chamber 105. Water droplets that have entered the cha... | 03/13/2007 |
| 7186381 | Hydrogen gas sensor A hydrogen gas sensor and/or switch fabricated from arrays nanowires composed of metal or metal alloys that have stable metal hydride phases. The sensor and/or switch response times make it quite suitable for measuring the concentration of hydrogen in a flowing gas ... | 03/06/2007 |
| 7178381 | Portable gas detector The invention provides a portable gas detector which is equipped with filters for removal of interfering gases, high in convenience for use, easy to exchange the filters, and easy to confirm the time the filters are exchanged. The portable gas detector has a housing... | 02/20/2007 |
| 7148488 | Apparatus for measuring radiation and method of use A device for measuring radiation is disclosed. The device comprises optics and electronics at least partially enclosed in a housing portable by a single human being. In a preferred embodiment, the housing comprises a window to admit radiation of a desired wave lengt... | 12/12/2006 |
| 7141211 | System for determining total sulfur content In order to determine the total sulfur content of a sample (1), the sample is uniformly combusted with a flame (8). The combustion product sulfur dioxide is fed to a gas chromatograph (15) in which it is separated from other combustion products ... | 11/28/2006 |
| 7112447 | Hand held gas analyzer A lightweight and portable analyzer is provided. At least one component of the analyzer is made from a lightweight material, such as ABS. A manifold can have a plate and gas passages ultrasonically welded together. By having at least one component made from a lightw... | 09/26/2006 |
| 7090806 | Portable oxygen sensor analyzer A portable, inexpensive, and easy to operate vehicle oxygen sensor analyzer shows, in real time, on an ultra-bright LED display, the dynamic operation of the oxygen sensor, simulates sensor signals into the computer, while monitoring the oxygen sensor to confirm cor... | 08/15/2006 |
| 7073714 | Code reader display An improved code reader for reading and displaying OBD II diagnostic codes. The code reader displays textual diagnosis descriptions corresponding to diagnostic codes. The code reader can display both an OBD II code and the textual diagnosis description corresponding... | 07/11/2006 |
