Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8168060 | System and method for improving accuracy of a gas sensor A method is disclosed for operating an electrochemical gas sensor with a measuring electrode pair and a pumping electrode pair. The method includes obtaining a measurement of the interfering species at a location spatially adjacent to a measuring electrode of the me... | 05/01/2012 |
| 8075759 | Procedure for the determination of the Lambda values with a broadband Lambda probe A procedure to calculate the Lambda value with a wideband Lambda sensor of an internal combustion engine of a motor vehicle is thereby characterized, in that from the measured pumping electricity and the sensitivities of the wideband Lambda sensor as well as the gas... | 12/13/2011 |
| 7799203 | Gas detection apparatus, gas-sensor control circuit used for gas detection apparatus, and inspection method for gas detection apparatus A gas detection apparatus including a gas sensor element and a gas-sensor control circuit. The gas sensor element includes at least one sensor cell including a solid electrolyte member and a pair of electrodes, and external connection terminals electrically connecte... | 09/21/2010 |
| 7744740 | Procedure to recognize the diffusion gas composition in a wideband lambda sensor In a procedure to recognize the gas composition of a gas mixture, which consists of at least two gases of preferably different diffusion properties, delivered to a wideband lambda sensor, especially a gas mixture of an exhaust gas of an internal combustion engine of... | 06/29/2010 |
| 7585402 | Method of sensor conditioning for improving signal output stability for mixed gas measurements A method of sensor conditioning is proposed for improving signal output stability and differentiation between responses to different gases such as exhaust from combustion processes. A square wave (or saw tooth) voltage pulses of opposite polarity and equivalent ampl... | 09/08/2009 |
| 7361258 | Sensor element and gas sensor A flat limiting-current sensor 10 includes a solid electrolyte substrate 22, a negative electrode 34a and a positive electrode 32a. The negative and positive electrodes 34a and 32a, respectively, ... | 04/22/2008 |
| 7309415 | Gas sensor and method for measuring a gas component in a gas mixture A gas sensor based on solid electrolyte is proposed for measuring a gas component in a gas mixture, having at least one sensitive region, which has a first means for producing a reaction gas from an additional gas component of the gas mixture. A second means is situ... | 12/18/2007 |
| 7293404 | Control device for internal combustion engine A device includes: downstream air-fuel ratio feedback control unit that performs feedback control of an upstream target air-fuel ratio so that a downstream air-fuel ratio detected by a downstream air-fuel ratio detecting unit coincides with a downstream target air-f... | 11/13/2007 |
| 7285204 | Apparatus for detecting deterioration of air-fuel ratio sensor In detecting a deterioration of an air-fuel ratio sensor, a sensor output change speed integrated value is calculated when an element temperature of a solid electrolyte is stabilized at a low temperature. Successively, a sensor output change speed integrated value i... | 10/23/2007 |
| 7279133 | Planar sensor and a method for measuring the temperature of same In a planar oxygen sensor having a pump cell, a reference cell, a sensor chamber and a heating device, a ground plane electrode is provided and includes a sensing portion having a first sense lead and a second sense lead and a measuring portion having a first measur... | 10/09/2007 |
| 7269996 | Method for dynamic diagnosis of an exhaust gas analyzer probe A method for the dynamic diagnosis of an exhaust gas analyzer probe situated in an exhaust-gas system having at least one exhaust-gas catalytic converter, of an internal combustion engine, a measuring signal (lambda-actual) of the exhaust gas analyzer probe being co... | 09/18/2007 |
| 7197866 | Control approach for use with dual mode oxygen sensor Electronic circuitry and control algorithms are described to automatically establish the output voltage of a linear exhaust gas oxygen sensor (e.g., a UEGO sensor) corresponding to an exhaust air-fuel ratio of stoichiometry. The apparatus and control logic herein de... | 04/03/2007 |
| 7182846 | Hydrogen-containing gas measurement sensor element and measuring method using same A gas sensor element is provided which is designed to measure the concentration of hydrogen-containing gas accurately. The sensor element includes an oxygen pump cell working to keep the concentration of oxygen contained in measurement gasses entering a measurement ... | 02/27/2007 |
| 7170731 | Circuit arrangement for operating a linear exhaust gas probe A circuit arrangement for operating a sensor comprises a control circuit for electrically supplying the sensor via a plurality of connecting lines and/or at least to detect one electrical output signal of the sensor in which case one of the connecting lines is route... | 01/30/2007 |
| 7153412 | Electrodes, electrochemical elements, gas sensors, and gas measurement methods Electrode having high activity to oxygen gas and low activity to flammable gas is provided. An oxygen pump includes oxide-ion conductive solid electrolyte 2, electrode 8 which is an inactive electrode, and active electrode 10. Electrode 8... | 12/26/2006 |
| 7144494 | Circuit arrangement for compensating interference signals in the control loop of a linear lambda probe A compensation circuit (KS) is provided between the output of a differential amplifier (Diff_Amp) and the input of a controller (R). The compensation circuit generates a compensation signal, whose characteristic curve approximates to that of the parasitic signal, wi... | 12/05/2006 |
| 7073369 | Method and device for detecting the concentration of an oxygen-containing compound in an analyte gas A method and an arrangement for determining the concentration of an oxygen-containing compound in a test gas in an external volume are presented with the external volume containing also additional oxygen. The method utilizes a sensor having a first cavity which is c... | 07/11/2006 |
| 7052595 | Gas sensor for determining the concentration of gas components in gas mixtures and use thereof A gas sensor for determining the concentration of gas components in gas mixtures is used in particular to measure the concentration of nitrogen oxides in exhaust gases of internal combustion engines or in the interiors of motor vehicles. It contains an electrochemic... | 05/30/2006 |
| 7052596 | Linear lambda probe evaluation circuit The pumping current source (P) required for operating the linear lambda probe is wired in such a manner that its inverting input is connected to the third probe terminal (Vp+), its non-inverting input is connected to the potential of the mean voltage (VM), and that ... | 05/30/2006 |
| 7048891 | Catalyst deterioration detecting apparatus A heat generation amount qr/r per unit flow amount of combustible substances supplied to a catalyst is estimated based on upstream and downstream temperature information and supplemental engine information. A deteriorated condition of the catalyst is detected based ... | 05/23/2006 |
| 7036982 | Method and apparatus to control an exhaust gas sensor to a predetermined termperature The invention provides a control strategy and a control system to control a gas sensor to a target operating temperature. It relies upon both feedback and model-based feedforward control systems to achieve and then maintain the sensor at the target operating tempera... | 05/02/2006 |
| 6994780 | Gas sensor and method of detecting gas concentration A gas sensor includes a measurement gas chamber into which a measurement gas is introduced. An oxygen pumping cell adjusts an oxygen concentration in the measurement gas chamber. An oxygen monitor cell has a monitor electrode exposed in the measurement gas chamber. ... | 02/07/2006 |
| 6966978 | Sensor element of a gas sensor A solid electrolyte-based sensor element of a gas sensor for determining a gas component in a gas mixture is described, in particular for determining the concentration of oxygen and/or nitrogen oxides in exhaust gases of internal combustion engines. The sensor eleme... | 11/22/2005 |
| 6936149 | Gas sensor A gas sensor for determining a physical quantity of a gas component, e.g., in an exhaust gas of an internal combustion engine, including a sensor element which contains at least one electrochemical cell. The electrochemical cell includes a first electrode and a seco... | 08/30/2005 |
| 6923902 | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor A method for detecting the concentration of a specific component in gas discharged from an internal combustion engine, which includes detecting the concentration of the specific component under certain driving conditions to determine a zero point, which indicates a ... | 08/02/2005 |
| 6910371 | Extended durability sensing system The present invention provides a sensing system for monitoring an environment that includes at least two sensors and a control unit in communication with the sensors. At least one of the sensors is active providing an output signal to the control unit indicative of ... | 06/28/2005 |
| 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 |
| 6849174 | Gas concentration measuring apparatus designed to minimize error component contained in output A gas concentration measuring apparatus which has a gas sensor designed to measure, for example, the concentrations of O2 and HOx contained in exhaust emissions of an automotive engine is provided. The apparatus includes a signal processing cir... | 02/01/2005 |
| 6818120 | O2-sensor fault diagnosis apparatus and method therefor An O2-sensor fault diagnosis apparatus and method therefor, which are capable of detecting wire breaking of an O2-sensor with reliability and successively performing fault diagnosis with minimal effect on an exhaust gas. An O2-sensor... | 11/16/2004 |
| 6767449 | Method for operating a sensor for determining the concentration of oxidizing gases in gas mixtures Method for operating a sensor for determining the concentration of oxidizing gases in gas mixtures, especially of the nitrogen oxide concentration in exhaust gases of internal combustion engines, wherein the sensor includes: at least one chamber (1; 2) mounte... | 07/27/2004 |
| 6743352 | Method and apparatus for correcting a gas sensor response for moisture in exhaust gas A method for detecting the concentration of a specific gas (NOx) in an engine exhaust gas using a gas sensor and a process of correcting the gas sensor. According to the correcting process, the amount of moisture in the exhaust gas is estimated, then a a gas concent... | 06/01/2004 |
| 6699383 | Method for determining a NOx concentration A thick-film measurement sensor includes two measurement cells and is used to measure the NOx concentration in the exhaust gas from an internal combustion engine. The 1/λ value of the exhaust gas is determined from an oxygen ion pump current flowing in t... | 03/02/2004 |
| 6605202 | Electrodes for solid state gas sensor A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and f... | 08/12/2003 |
| 6576118 | Correction device of air-fuel ratio detection apparatus According to the present invention, there is provided: a sensor element including an oxygen concentration detection section consisting of solid electrolyte for outputting a detection signal corresponding to an oxygen concentration in a hollow chamber to w... | 06/10/2003 |
| 6550305 | Activation diagnosis method and activation diagnosis apparatus for air-fuel ratio sensor Before starting an air-fuel ratio feedback control utilizing an air-fuel ratio sensor, activation of a wide-range air-fuel ratio sensor in an internal combustion engine is diagnosed by calculating heat transferred to and from the air-fuel ratio sensor, th... | 04/22/2003 |
| 6551499 | Method for monitoring the function of a gas sensor and/or for regenerating the same This invention provides a method for monitoring the function and/or regeneration of a gas probe. The invention includes a measurement of first and second pump currents of the gas probe and a determination of a difference between the first and second pump ... | 04/22/2003 |
| 6551498 | Lower protective shield for an exhaust sensor and method for making the same The protective shield arrangement for an exhaust sensor and method of making and using the same is achieved by providing a protective shield for an exhaust gas sensor that comprises a porous mesh material formed as a cap for placement over an end portion ... | 04/22/2003 |
| 6547955 | Gas concentration measuring apparatus designed to minimize error component contained in output A gas concentration measuring apparatus which has a gas sensor designed to measure, for example, the concentrations of O2 and HOx contained in exhaust emissions of an automotive engine is provided. The apparatus includes a signal processing cir... | 04/15/2003 |
| 6544405 | Sensor coating inhibiting glass formation An exhaust gas sensor element having an electrochemical cell, a protective material in fluid communication with the electrochemical cell, and a reactive inhibitive coating disposed over the protective material. The reactive inhibitive coating prevents the... | 04/08/2003 |
| 6533921 | Apparatus for detecting concentration of nitrogen oxide Apparatus for detecting the NOx concentration includes a first measurement chamber 20 communicating with the gas under measurement via a diffusion rate defining layer 4d and a second measurement chamber 26 communicating with the first measurement chamber ... | 03/18/2003 |
