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| Number | Title | Issue Date |
| 7413687 | Low temperature proton conducting oxide devices A device for conducting protons at a temperature below 550° C. includes a LAMOX ceramic body characterized by an alpha crystalline structure. ... | 08/19/2008 |
| 7381314 | Liquid electrochemical gas sensor An aqueous solution of a Na salt of a phenol sulfonic acid polymer as a liquid electrolyte is held in a separator of a liquid electrochemical gas sensor. A sensing electrode and a counter electrode are connected to the separator to detect CO at a range from about âˆ... | 06/03/2008 |
| 7378008 | Liquid electrochemical gas sensor Water is stored in a metal can, and water vapor is supplied to a separator through an opening in a washer. The separator is an alkali metal salt in a sulfonated synthetic resin membrane, and KOH aqueous solution is used as the electrolyte, and the sensing electrode ... | 05/27/2008 |
| 7258003 | Flow sensor with self-aligned flow channel A flow sensor is provided having a substrate with a sensing element and flow channel aligned over the sensing element. The sensing element senses at least one property of a fluid. The flow channel is aligned by one or more guide elements formed in an alignment layer... | 08/21/2007 |
| 7176018 | Cell lysis device A micromachined cell lysis device with electrodes that are spaced by less than 10 μm from one another. The cells are attracted to the space between the electrodes and then lysed. ... | 02/13/2007 |
| 7159447 | Gas sensor equipped with gas inlet designed to create desired flow of gas A gas sensor equipped with a protective gas cover which defines therein a gas chamber to which a sensor element is exposed. The protective gas cover has gas inlet holes through which gas to be measured is admitted. The protective cover also has dimples formed adjace... | 01/09/2007 |
| 7087326 | Moisture sensor and fuel cell system using same A moisture sensor working to measure a moisture content of a specified measurement gas is provided which consists of an electrochemical cell having a first electrode exposed to the measurement gas and a second electrode exposed to a reference gas and a controller. T... | 08/08/2006 |
| 7060652 | Gas sensor A liquid electrode mixture for use in a gas sensor having from about 60 to about 240 milligrams of platinum black catalyst; from about 900 to about 1100 milligrams of water; from about 300 to about 400 microliters of 1-propanol; and from about 100 microliters to abo... | 06/13/2006 |
| 6953620 | Coating system and method for its manufacture and its use A coating system and a method for its manufacture are provided. An electrically conductive base coat and a porous overcoat lying over the base coat are arranged on a ceramic substrate. At least one additional deposited layer is arranged on the base coat in such a wa... | 10/11/2005 |
| 6592744 | Method of filling an amperometric cell The invention relates to an amperometric electrochemical cell having a first insulating substrate carrying a first electrode, a second insulting substrate carrying a second electrode, said electrodes being disposed to face each other and spaced apart by l... | 07/15/2003 |
| 6218687 | Smart microsensor arrays with silicon-on-insulator readouts for damage control A microsensor for identifying a change in a characteristic of an environment having temperatures of up to approximately five hundred degrees Centigrade includes a substantially flat insulator layer made of silicon oxide. A base layer made of silicon is in... | 04/17/2001 |
| 5871633 | Impedance type humidity sensor with protonconducting electrolyte and method of using same A humidity sensing device comprising a solid electrolyte evidencing proton conductivity includes HZr2 P3 O12 or a composite comprising HZr2 P3 O12 /ZrP2 O7. The humidity se... | 02/16/1999 |
| 5672258 | Impedance type humidity sensor with proton-conducting electrolyte A humidity sensing device comprising a solid electrolyte evidencing proton conductivity includes HZr2 P3 O12 or a composite comprising HZr2 P3 O12 /ZrP2 O7. The humidity se... | 09/30/1997 |
| 5632874 | Ion selective ceramic membrane Ion selective ceramic membrane with high proton conductivity, which membrane is formed of lanthanide phosphate being doped with one or more metals Me from Group IIA of the Periodic Table and having a composition: Ln1-x Mex PO4 ... | 05/27/1997 |
| 5589085 | Process of manufacturing a detecting unit for an electrolytic cell with thin film electrodes A new design for and an improved process of manufacturing a detecting unit for a type I electrolytic cell with thin film electrodes. In the first step of the process, a long, narrow, transparent, hollow glass tube is provided having an inside surface, an ... | 12/31/1996 |
| 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 |
| 5522980 | Gas sensor and sensing device A gas sensor comprises a substrate on which are mounted three cells. Each cell includes an interdigitated capacitor defined by a pair of comb structure, electrically conductive tracks with the fingers of the combs interleaved. The tracks of each capacitor... | 06/04/1996 |
| 5466575 | Process for the manufacture of wholly microfabricated biosensors An efficient method for the microfabrication of electronic devices which have been adapted for the analyses of biologically significant analyte species is described. The techniques of the present invention allow for close control over the dimensional feat... | 11/14/1995 |
| 5393404 | Humidity sensor with nasicon-based proton-conducting electrolyte A humidity sensing device comprising a solid electrolyte evidencing proton conductivity includes a composite comprising HZr2 P3 O12 /ZrP2 O7. The humidity sensing device is operative over a temperatur... | 02/28/1995 |
| 5382908 | Conductivity or capacity cell and a method for producing the same and a probe including such a cell and a method for measuring of relative humidity with such a probe Cell (19) for measuring moisture content of a material, comprising a sock (13) which is comprised of a plurality of braided threads, each thread consisting of a plurality of fibers comprised of an electrically non-conductive material. The sock is perfused... | 01/17/1995 |
| 5343735 | Apparatus for accurately measuring the water content of gases An apparatus for accurately measuring the water content of a moist gas containing less than 50 parts per million (ppm) of water comprises an isothermal heat-sink (14), a radiator (20), a Peltier heater-cooler (24) thermally arranged between the isothermal... | 09/06/1994 |
| 5342500 | Interfacial component detection apparatus An interfacial component detection apparatus has a plurality of electrodes spaced from one another on a first solid portion and a solid electrolytic layer on the first solid portion adjacent to an interfacial layer and covering the plurality of electrodes... | 08/30/1994 |
| 5304295 | High molecular humidity sensor and manufacturing method thereof by electrochemical method A high molecular humidity sensor in which polypyrrole being of conductive high molecule is electrochemically polymerized and then reduced whereby ionic conductive property is given go that humidity sensibility becomes excellent. The sensor is a structure ... | 04/19/1994 |
| 5225065 | Epoxy-less low-level moisture measurement system and method Low-level water concentrations are measured in gases by an electrolytic cell in which contaminating epoxy components present in conventional electrolytic cells have been eliminated. A metal-glass connection seal mechanically fixes the glass detection unit... | 07/06/1993 |
| 5198094 | Counterflow device to reduce the negative impact of contaminating materials used in moisture sensitive apparatuses or procedures A counterflow device adapted for an analyzer engaging a gas stream and having a sensor for measuring a component of that stream. Because at least one element disposed between the gas inlet and gas outlet of the sensor typically emits unwanted impurities, ... | 03/30/1993 |
| 5131990 | Fluoropolymer humidity sensors A humidity sensor composed of interdigitated electrodes and a material therebetween which is composed of Nafion wherein H+ cites have undergone ion exchange with at least one of NH4+ and Li+, Na+, Ag+ and Mg+.... | 07/21/1992 |
| 5122237 | High molecular humidity sensor and manufacturing method thereof by electrochemical method A high molecular humidity sensor and manufacturing method thereof in which polypyrrole being of conductive high molecule is electrochemically polymerized and then reduced whereby ionic conductive property is given go that humidity sensibility becomes exce... | 06/16/1992 |
| 5059291 | Humidity controller A humidity controller has a humidity controlling element disposed in the opening of a chamber and comprising a hydrogen ion conductor membrane, porous electrodes disposed on two surfaces of the hydrogen ion conductor membrane and collecting electrodes dis... | 10/22/1991 |
| 5045828 | Fluoropolymer humidity sensors A humidity sensor composed of interdigitated electrodes and a material therebetween which is composed of perfluorosulfonic acid substituted poly (tetrafluoroethylene) copolymer wherein H+ sites have undergone ion exchange with at least one of NH4+ and Li+... | 09/03/1991 |
| 4990236 | Thin film moisture sensing element A solid state, thin film moisture sensing element is disclosed. The sensing element is fabricated by thin film deposition of at least a pair of two layer electrodes on an insulating surface. The active surface of the element is then coated with a layer of... | 02/05/1991 |
| 4954238 | Moisture-sensing hygrometer element A moisture-sensing hygrometric element is provided comprising an electrolytic moisture-sensing mechanism integrally formed on the surface of a porous substrate, the porous substrate being resistant to oxidation and reduction and resistant to acids, wherei... | 09/04/1990 |
| 4915816 | Polymer hygrometer for harsh environments The polymer hygrometer with lithium doped Nafion was developed to meet the need for a reliable sensor for determining the relative humidity in harsh environments of pulp and paper mills. The sensor can operate in atmospheres that have organic vapors and d... | 04/10/1990 |
| 4906537 | Secondary cell The invention provides a new secondary cell with a solid electrolyte layer wherein the solid electrolyte layer comprises a plasma-polymerized layer of an organic compound containing an alkali metal ion and an element with high electronegativity.... | 03/06/1990 |
| 4861496 | Electro-dewatering method and apparatus An apparatus and method of electro-dewatering sewage sludge and other high water sludges. The sludge is passed through a conveyor means that is electrically charged. The anode has metal bristles or wires that protrude into the sludge mass. Water that migr... | 08/29/1989 |
| 4862066 | Oil leakage sensor element An oil leakage sensor element is provided wherein a plurality of electrical conductors are contained within and separated from each other by a continuously porous polytetrafluoroethylene (PTFE) material containing from 15 to 40 weight percent carbon parti... | 08/29/1989 |
| 4842709 | Electrolytic cell and process for the operation of electrolytic cells, for moisture analyzers An improved electrolytic cell, the electrodes of which can be readily cleaned, and resensitized by the application of fresh electrolyte upon the electrodes. The cell includes a cleaning assembly integral with the cell body, and the electrodes of the cell ... | 06/27/1989 |
| 4800000 | Low level moisture measurement system and method Water in a gas is measured with improved sensitivity to low levels (on the order of 2.000 to 0.005 ppmv), response time and cell longevity, by an electrolytic cell wherein the electrode element comprises a tubular conduit for the gas having a pair of elec... | 01/24/1989 |
| 4773935 | Moisture sensor containing cellulose acetate butyrate A moisture sensitive material prepared by cross-linking cellulose acetate butyrate with at least one compound selected from the group consisting of compounds containing two or more isocyanate groups; copmpounds containing two or more epoxy groups; compoun... | 09/27/1988 |
| 4743345 | Apparatus for and method of operating a hygrometer in a repetitive batch titration mode A method of operating electrolytic hygrometers in a batch mode that substantially reduces the time required for electrolysis. A substantially constant amount of moisture is retained in the hygrometer between samples by controlling the electrolysis current... | 05/10/1988 |
| 4738765 | Electrolytic cell hygrometer An electrolytic hygrometer is provided which comprises a hollow cylinder having first and second shoulders and a ceramic substrate containing an electrolytic cell circuit pattern mounted on the second shoulder of the hollow cylinder and extending upwardly... | 04/19/1988 |
