Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7361620 | Catalytically active layer A catalytically active layer that is used, for example, as an electrode for a solid electrolyte-based sensor element of a gas sensor for determining a gas component in a gas mixture. The catalytically active layer includes a metallic component, that includes a noble... | 04/22/2008 |
| 7335287 | Solid electrolyte sensor for monitoring the concentration of an element in a fluid particularly molten metal The present invention relates to an electrochemical sensor for determining the concentration of a group IA metal in a fluid such as molten metal. The sensor comprises a substantially pure quantity of the group 1A metal as a reference electrode (13) contained ... | 02/26/2008 |
| 7237430 | Method and apparatus for enhanced detection of a specie using a gas chromatograph The invention includes a method and apparatus for a chromatography system having a chromatographic column for separating gases in a mixture from one another and an electrochemical gas sensor coupled to the chromatographic column for detecting a gas being emitted fro... | 07/03/2007 |
| 7087151 | Hydrogen sensor for use in battery overcharge/overdischarge detector and hydrogen leakage detector A hydrogen sensor which may be employed in an overcharge/overdischarge detector for a battery and a hydrogen leakage detector for a fuel cell is provided. The hydrogen sensor includes a sensor element and a diffused resistor member. The gas to be measured passes thr... | 08/08/2006 |
| 7021082 | Method and apparatus for suppressing oxygen bubble formation in glass melts In the method of making glass a glass melt is formed from starting materials in a melt apparatus, which includes at least one metal part having a metal surface in contact with the glass melt in a first region of the glass melt having a predetermined oxygen partial p... | 04/04/2006 |
| 7013707 | Method and apparatus for enhanced detection of a specie using a gas chromatograph The invention includes a method and apparatus for a chromatography system having a chromatographic column for separating gases in a mixture from one another and an electrochemical gas sensor coupled to the chromatographic column for detecting a gas being emitted fro... | 03/21/2006 |
| 6929735 | Electrochemical sensor having improved response time The invention relates to a method and apparatus for providing an electrochemical gas sensor having improved response time for detecting a gas introduced into the sensor. The sensor includes a substrate having a first surface and a second surface and an electrode dep... | 08/16/2005 |
| 6913731 | Oxygen probe Intended for application on ducts through which flow a fluid at a high temperature, and particularly at a high pressure, comprising two bodies (4) and (8) which axially screw onto each other, one body (4) provided with a threaded neck (5)... | 07/05/2005 |
| 6890422 | Oxidizable gas component sensor and method of using the sensor An electrochemical gas sensor determining the concentration of oxidizable gas components which has an electrochemical measuring cell having a measuring electrode and a reference electrode. Measuring electrode is made of a material which is not able, or not completel... | 05/10/2005 |
| 6623617 | Method and apparatus for measuring concentration of a component in a gas A method and apparatus which enable accurate measurement of the concentration of NOx in a gas under measurement, even when the NOx concentration is low. A gas under measurement is introduced into a first chamber 3 through a first diffusion passage 2. A pu... | 09/23/2003 |
| 6338783 | Gas sensor, method of manufacturing the same, and gas sensor system using the gas sensor A gas sensor which can detect the concentration of a combustible gas component in a measurement gas with high accuracy even when the oxygen concentration of the measurement gas or the element temperature changes and which has an excellent response in dete... | 01/15/2002 |
| 6312585 | Method for determining oxidizable constituents in a gaseous mixture A method and arrangement is described for determining oxidizable constituents in a gas mixture by using a solid electrolyte cell with at least one reference electrode and at least one working electrode made of electrically conducting mixed oxides which is... | 11/06/2001 |
| 6306285 | Techniques for sensing methanol concentration in aqueous environments An analyte concentration sensor that is capable of fast and reliable sensing of analyte concentration in aqueous environments with high concentrations of the analyte. Preferably, the present invention is a methanol concentration sensor device coupled to a... | 10/23/2001 |
| 6258231 | Chemical mechanical polishing endpoint apparatus using component activity in effluent slurry An apparatus for determining the endpoint in a chemical mechanical polishing operation used for polishing a metal-containing material includes an electrochemical cell and an electronic circuit. An acidic polishing slurry is used to oxidize the metal and t... | 07/10/2001 |
| 6254748 | Direct methanol feed fuel cell and system Improvements to non-acid methanol fuel cells include new formulations for materials. The platinum and ruthenium are more exactly mixed together. Different materials are substituted for these materials. The backing material for the fuel cell electrode is s... | 07/03/2001 |
| 6090268 | CO gas sensor and CO gas concentration measuring method A CO gas sensor according to the present invention includes a gas collecting container for collecting a measured gas therein; a detecting section provided within the gas collecting container and having at least a pair of electrodes positioned through elec... | 07/18/2000 |
| 6084418 | Method for accurately detecting sensor element resistance An air-fuel ratio sensor generates linear air-fuel ratio detection signals proportional to concentration of oxygen in exhaust gas from an engine in response to a command voltage from a microprocessor. A bias command signal generated by the microprocessor ... | 07/04/2000 |
| 6071393 | Nitrogen oxide concentration sensor A small-sized inexpensive nitrogen oxide concentration sensor capable of measuring the concentration of the nitrogen oxide in a measuring gas to a high accuracy. A first oxygen pumping cell, an oxygen concentration measuring cell and a second oxygen pumpi... | 06/06/2000 |
| 6013163 | Probe for detection of the concentration of various elements in molten metal A system is provided for measuring the concentration of an element in molten metal such as silicon, chromium, manganese or aluminum. The system includes a probe with a sensor having a solid electrolyte, a reference electrode in contact with a first surfac... | 01/11/2000 |
| 5989408 | Process for measuring an electrochemical activity A a process as well as an immersion sensor for measuring an electrochemical activity of a layer lying on a melt is provided, using an electrochemical sensor, which has a measuring cell and a counter electrode. In order to make possible reliably reproducib... | 11/23/1999 |
| 5976335 | Gas sensor having a function for minimizing heater leak current Disclosed is a gas sensor comprising a main pumping cell including a solid electrolyte layer contacting with an external space, and an inner pumping electrode and an outer pumping electrode formed on inner and outer surfaces of the solid electrolyte layer... | 11/02/1999 |
| 5958340 | Solid-state chemical sensor The invention pertains to a solid-state chemical sensor with a substrate support. On one side of the support is mounted a heating element with branch circuit connections. On the other side interdigital electrodes are arranged and thereon a carbon dioxide-... | 09/28/1999 |
| 5893968 | Method and apparatus for measuring combustible gas component by burning the component An apparatus for measuring a combustible gas component of a subject gas in an external subject gas space, including a first processing zone communicating with the subject gas space, 58), a second processing zone communicating with the first processing zon... | 04/13/1999 |
| 5820745 | Method of measuring the concentration of a gas in a gas mixture and electrochemical sensor for determining the gas concentration The invention relates to a method as well as to an electrochemical sensor for measuring the concentration of at least one predetermined gas in a gas mixture by means of an electrolyte provided with a first and a second surface-mounted electrode, which are... | 10/13/1998 |
| 5736028 | Sensor and method for detecting oxides of nitrogen The present invention relates to a sensor for detection of oxides of nitrogen forming part of a gas, including a substrate consisting of a solid electrolyte on which a conductive pattern is arranged which includes at least two parts forming an anode and a... | 04/07/1998 |
| 5683570 | Gas detection method A method is provided for measuring the concentration of a sample gas in an oxygen-containing carrier gas by continuously flowing the oxygen-containing carrier gas which also contains the sample gas whose concentration is to be measured, into and through a... | 11/04/1997 |
| 5650054 | Low cost room temperature electrochemical carbon monoxide and toxic gas sensor with humidity compensation based on protonic conductive membranes A low cost room temperature electrochemical gas sensor with humidity compensation for sensing CO, alcohol vapors and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a counter ele... | 07/22/1997 |
| 5611901 | Oxygen measuring probe An oxygen measuring probe for use with molten metal baths for the manufacture of glass which probe comprises a probe body (4) comprising an elongate tubular member (6) closed at one end by a separate tip part (8) formed of stabilised zirconia which consti... | 03/18/1997 |
| 5596134 | Continuous oxygen content monitor A continuous oxygen content monitor has a reference electrode embedded in a powdered chrome-chrome-oxide mixture and a counter electrode embedded in an elongate alumina-graphite sleeve which acts as the probe support body. Two hallow and spacer ablative s... | 01/21/1997 |
| 5578194 | Calibration of electrodes A CO2 electrode can be calibrated with two PCO2 calibration standard solutions having known pH values and known bicarbonate ion source concentrations. An O2 electrode can be calibrated using air as one calibration standard... | 11/26/1996 |
| 5573648 | Gas sensor based on protonic conductive membranes A low cost room temperature electrochemical gas sensor for sensing CO and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a count counter electrode, which are separated by the me... | 11/12/1996 |
| 5556534 | Electrochemical oxygen and PH sensors employing fluoride based solid-state electrolytes Electrochemical sensors and methods for their use are provided for the detection of the pH and/or oxygen concentration in an aqueous medium. The subject sensors comprise a closed-end cylinder shaped fluoride based solid-state electrolyte having an inner a... | 09/17/1996 |
| 5538620 | Electrochemical sensor with which to measure gas concentrations The invention concerns a novel electrochemical sensor with which to measure gas concentrations and comprising a measuring electrode and an associated electrode containing a carbonaceous material with a specific surface of at least 40 m2 /g and ... | 07/23/1996 |
| 5503719 | Extended use planar sensors A planar, solid-state electrochemical oxygen sensor having a substrate, conductive strips deposited on the substrate, and a dielectric layer insulating portions of the conductive strips except those portions which define a working electrode and at least o... | 04/02/1996 |
| 5492610 | Solid state electrochemical cell for performing electro-chemical measurements on a solid electrolyte at high temperatures A solid state electrochemical cell is provided for performing electrocheml measurements on a solid electrolyte at high temperatures. The solid state electrochemical cell includes a noble metal working electrode, a lithium alloy reference electrode, and c... | 02/20/1996 |
| 5480523 | Method of using oxygen measuring probe An oxygen measuring probe for use with molten metal baths for the manufacture of glass which probe comprises a probe body (4) comprising an elongate tubular member (6) closed at one end by a separate tip part (8) formed of stabilised zirconia which consti... | 01/02/1996 |
| 5466350 | Selective electrochemical detector for nitric oxide and method A thin film, solid sate amperometric detector for mac oxide is provided based upon a mobile cation electrolyte that selectively transmits nitrosonium cations (NO+) therethrough. The presently most preferred embodiment employs NO-ଲ-alumina... | 11/14/1995 |
| 5433830 | Method of activating zirconia oxygen sensor Activation treatment for a zirconia oxygen sensor is performed by applying alternately a treating voltage, which can make an oxygen partial pressure at the electrode-zirconia interface of a sensor equal to or higher than a critical oxygen partial pressure... | 07/18/1995 |
| 5342489 | Method of measuring oxygen activities in slag A method and apparatus for measuring the oxygen activity of the slag in molten iron or molten steel with high accuracy. A conventional measuring method in which an oxygen concentration cell produced by winding a platinum contact electrode around the outer... | 08/30/1994 |
| 5332449 | Immersion sensor for molten metals An immersion sensor for molten metals has an electrically conducting support pin, whose one end is mounted in a refractory mounting material, and whose other free end has a first coating of a reference material and on top of this a second coating of a sol... | 07/26/1994 |
