Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| H2228 | Temperature compensated fluid conductivity piping measurement A conductivity sensor positioned in-line between two pipe sections within a cylindrical collar portion of a measurement assembly measures the electrical conductivity of fluid under flow through a passage therein to generate a conductivity data signal, while a separa... | 01/06/2009 |
| 7323887 | Conductivity sensor and manufacturing method therefor A contacting-type conductivity sensor includes a plurality of electrodes disposed on a distal surface of a substrate. The substrate includes a plurality of vias through which electrical interconnection to the electrodes is accomplished. The conductivity sensor can e... | 01/29/2008 |
| 7259575 | Method for on-line fuel-dilution monitoring of engine lubricant A method for determining a fuel-dilution condition of a lubricant used in transportation and industrial equipment. The method uses apparatus that applies a high frequency and optionally a low frequency oscillating signal to electrodes immersed in the fluid and quant... | 08/21/2007 |
| 7259566 | Micro sensor system for liquid conductivity, temperature and depth In accordance with the present invention is a miniature planar oceanographic conductivity, temperature pressure (CTD) system based on a thin film material fabricated on a Liquid Crystalline Polymer (LCP). The micro-CTD system in accordance with the present invention... | 08/21/2007 |
| 7230430 | Fast microcalorimetry for electrochemical cells The present invention broadly comprises a method and apparatus for testing electrochemical cells which is faster and more cost-effective than current testing methods. Accordingly, the invention provides a method for testing electrochemical cells, particularly batter... | 06/12/2007 |
| 7161356 | Voltage/current testing equipment for microfluidic devices The present invention provides novel methods and devices for testing/verifying the configuration of one or more microfluidic elements in a microfluidic device. In particular the methods and devices of the invention are useful in testing for blockages or the presence... | 01/09/2007 |
| 7084466 | Liquid detection end effector sensor and method of using the same Liquid detection sensors are attached to both sides of a robotic arm end effector of a semiconductor wafer process system. The sensor mechanism or probe is situated on the front side and backside of the end effector, designed with electrical lines that are traced on... | 08/01/2006 |
| 7049831 | Fluid quality control using broad spectrum impedance spectroscopy A system and method for monitoring and controlling the properties of fluids is disclosed. The inventive concept employs impedance spectroscopy (IS) measurements, and is suitable for real-time, in situ, monitoring and quality control operations, such as quality contr... | 05/23/2006 |
| 7019654 | Contact potential difference sensor to monitor oil properties A method and system for contact potential sensing of dielectric properties of a fluid. The method and system include a contact potential sensor, an open or closed loop for passing a fluid past the sensor, measuring a contact potential to characterize dielectric prop... | 03/28/2006 |
| 6967489 | Method and apparatus for controllably effecting samples using two signals Methods and systems for effecting a parameter and detecting a parameter using two electric signal in a conductive path are described. ... | 11/22/2005 |
| 6884356 | Low-level boron detection and measurement Methods and apparatus (50) are disclosed for accurately measuring low concentrations of boron in deionized water utilizing the chemical reaction of boric acid with a polyol by injecting very small plugs of concentrated polyol into streams of boron containing ... | 04/26/2005 |
| 6750661 | Method and apparatus for controllably effecting samples using two signals Methods and systems for effecting a parameter and detecting a parameter using two electric signal in a conductive path are described. ... | 06/15/2004 |
| 6577134 | Sensor and sensor system for liquid conductivity, temperature and depth Liquid conductivity and temperature are measured in respective sensitivity fields that are collocated--i. e., in volumes that nearly match by mathematical, geometrical, or functional criteria. Collocation is as distinct from mere adjacency or proximity; a... | 06/10/2003 |
| 6541978 | Method, system and device for producing signals from a substance biological and/or chemical activity The invention concerns a method, a system and a device for producing, from a substance, electric signals characteristic of the biological activity of an active element contained in the substance. The method consists in: placing the substance in a zone sub... | 04/01/2003 |
| 6504358 | Method for detecting the operating temperature of a motor In order to detect a motor temperature during operation of a motor without using any sensors, the motor temperature is determined when the motor is switched on by measuring a current and a voltage at the time when the motor is switched on. The motor tempe... | 01/07/2003 |
| 6489774 | Miniaturized device for ion analysis, and methods of use thereof A miniaturized ion analysis system with a contactless conductivity detection means is described for use in liquid phase sample analysis and detection. The device is formed by microfabrication of microstructures in novel support substrates. The detection m... | 12/03/2002 |
| 6433560 | Combined fluid condition monitor and fluid level sensor A combination fluid condition monitor and fluid level sensor having an excitation electrode divided into two segments disposed closely spaced and parallel to current sensing electrode. For the fluid condition monitoring mode function both segments of the ... | 08/13/2002 |
| 6411667 | Banded ECP sensor An ECP sensor includes a tubular ceramic probe having a closed tip at one end packed with a metal and metal oxide powder. A metal support tube receives an opposite end of the probe, and is joined thereto by a braze joint therewith. An electrical conductor... | 06/25/2002 |
| 6404204 | Sensor and sensor system for liquid conductivity, temperature and depth Liquid conductivity and temperature are measured in respective sensitivity fields that are collocated--i. e., in volumes that nearly match by mathematical, geometrical, or functional criteria. Collocation is as distinct from mere adjacency or proximity; a... | 06/11/2002 |
| 6380746 | Monitoring fluid condition with a spiral electrode configuration A plug for insertion through the wall of a vessel filled with fluid to be monitored has an extension immersed in the fluid which has a pair of wire electrodes helically wound thereon in spaced arrangement. The electrodes are wound at a uniform pitch in on... | 04/30/2002 |
| 6278281 | Fluid condition monitor A fluid condition monitor suitable for real time monitoring of a fluid in a fluid system such as on-board vehicle monitoring of engine oil and transmission fluid to determine contamination. A capacitive spaced array electrode probe is immersed in the flui... | 08/21/2001 |
| 6232786 | Apparatus and method for measuring conductivity An improved apparatus for measuring conductivity or resistivity compensates for series capacitance and parallel capacitance. A sine wave excitation potential is applied to the series combination of a reference resistance and a conductivity cell. The volta... | 05/15/2001 |
| 6222371 | Hand-held fluid tester for process fluids A portable, hand-held fluid tester for testing and analyzing process fluids is provided with a volume controlled fluid reservoir. The test fluid reservoir is connected by a spillway to an overflow reservoir to provide more consistent and accurate fluid vo... | 04/24/2001 |
| 6071998 | Polyhydroxyalkanoate molding compositions Molding compositions including polyhydroxyalkanoates are provided. The use of polyhydroxyalkanoates as a binder in molding compositions provides improved binder removal in the finished molded product, and offers a wide range of physical properties suitabl... | 06/06/2000 |
| 6034520 | Method of determination of active ions by electric conductivity and electric conductivity metering system therefor Provided is a method and metering system for the determination of active ions emitted from certain active substances such as rayon fibers containing fine particles of tourmaline known to exhibit permanent spontaneous polarization. The method comprises: co... | 03/07/2000 |
| 6020721 | Indirect thermal sensing system for a battery charger A battery charger including a battery temperature monitoring device. The battery temperature monitoring device includes a first thermistor bonded to one of the terminals of the battery charger to provide a temperature signal of the temperature of the term... | 02/01/2000 |
| 5874825 | Indirect thermal sensing system for a battery charger A battery charger including a battery temperature monitoring device. The battery temperature monitoring device includes a first thermistor bonded to one of the terminals of the battery charger to provide a temperature signal of the temperature of the term... | 02/23/1999 |
| 5869972 | Testing device using a thermochromic display and method of using same A testing device for qualitatively or quantitatively sensing an electrochemical or analogous reaction at the surface of a test strip (46), the current flowing or charge accumulated at the test strip being processed by electronics (50) to generate a curren... | 02/09/1999 |
| 5744945 | Cryogenic fluid-level sensor A method of measuring a cryogenic fluid level utilizing a high temperature ceramic superconductor material driven above its level of critical current density. A high temperature ceramic superconductor is placed in cryogenic fluid and a voltage is applied ... | 04/28/1998 |
| 5644239 | Method and apparatus for sensing the condition of a fluid A method and apparatus for determining the condition of a fluid used in a process, such as a lubricating oil used in an internal combustion engine. A sample of the fluid is heated to an elevated temperature, a measurement is taken of an electrical charact... | 07/01/1997 |
| 5619144 | Detector and method for observation of the presence of a liquid and/or of a change of phase in same Detector and method for detecting the presence of a liquid, such as water dew or of ice, or for detecting a change of phase in liquid, based on a change in an electrical resistance. The detector comprises a substrate onto whose face one or several resisto... | 04/08/1997 |
| 5518933 | Method of analyzing washings for free acids and ions A method of determining the concentrations of at least two of plural kinds of known free acids and ions contained in a solution, wherein these known free acids and ions are known beforehand to be different from each other in temperature changes and conduc... | 05/21/1996 |
| 5508624 | Method for measuring degradation level of transformer insulating oil in use, and apparatus for carrying out the method A degradation level of transformer insulating oil can be checked by measuring leakage current of a sensor for measuring the degradation level of the insulating oil, in which DC power is applied to two electrodes of the sensor in the insulating oil for the... | 04/16/1996 |
| 5466366 | Water temperature and conductivity detector for reverse-osmosis water purifier systems A water temperature and conductivity detector includes a detector unit, a cup-shaped bottom shell, and a socket connector having a top end connected to the detector unit, a bottom end connected to the cup-shaped bottom shell, a water inlet connected to a ... | 11/14/1995 |
| 5318078 | Process for bottling beverages The invention concerns a process for controlling and/ or distinguishing liquids used in the brewing industry. To distinguish water, rinse water, different kinds of beer, and various non-alcoholic drinks with the help of technical measuring devices, a meas... | 06/07/1994 |
| 5200706 | Apparatus for measuring ionic concentration in two measurement configurations A device for measuring ionic concentration in a sample liquid, having a detachable waterproof electrode housing. A body member has a computing device disposed therein and a display panel on an exterior surface. The waterproof electrode housing is demounta... | 04/06/1993 |
| 5175502 | Method and apparatus for determining acid concentration Acid concentrations are determined by the method and apparatus, particularly HCl acid for picking ferrous material. Specific gravity measurements are made on acid samples, diluted acid samples and water. Conductivity measurements are conducted on the dilu... | 12/29/1992 |
| 5157332 | Three-toroid electrodeless conductivity cell An electrodeless conductivity measuring cell having three toroids. In one arrangement, the three toroids are stacked together wherein the center toroid is used for sensing and the two outer toroids are the drive toroids. Alternatively, the center toroid m... | 10/20/1992 |
| 5103179 | Water analyzer with multiple electrodes A water analyzer having several electrodes of the type which normally interfere with one another. These electrodes include a first electrode which is an active measurement electrode which perturbs the solution in which it is used and a second electrode wh... | 04/07/1992 |
| 5038109 | Screening and monitoring instrument Apparatus for indicating a predisposition to kidney stone disease in humans, and also dehydration, and for monitoring the efficacy of hydration therapy, comprises a conductivity probe including a tip which can be inserted into urine so that a drop thereof... | 08/06/1991 |
