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| Number | Title | Issue Date |
| 7396443 | Solid-state electrochemical hydrogen probe for the measurement of hydrogen content in the molten aluminum An electrochemical gas probe capable of measuring an amount of gas in a molten metal. The probe comprises a sensing unit that includes a reference electrode, a sensing electrode, a solid-state reference mixture adjacent to the reference electrode, and a conductor be... | 07/08/2008 |
| 6996976 | Apparatus and method for mounting a device to a pipe An apparatus and method for mounting a device to a pipe. The apparatus is particularly useful for the installation and/or replacement of retrofit sensors and injectors to the piping of engine exhaust systems and emission control systems, and is designed to be used o... | 02/14/2006 |
| 6468407 | NOx reduction sensor coating A sensor is disclosed that comprises an electrolyte disposed between and in intimate contact with a sensing electrode and a reference electrode. A protective coating is disposed on the protective layer adjacent to the sensing electrode. The protective coa... | 10/22/2002 |
| 6328867 | Sensors for measuring the solute contents of liquid ferrous and non-ferrous metals An electrochemical field probe for measuring solute concentrations of elements dissolved in a liquid, such as a molten metal bath, generally including a base having a first end, a second end, an external surface, and extending about a longitudinal axis, a... | 12/11/2001 |
| 6217957 | Receptacle for floral-tipped bobby pins A decorative receptacle for retaining at least one decorative bobby pin. The decorative bobby pin has opposed first and second ends wherein a decorative element is disposed on the first end thereof. The receptacle further includes a container with an open... | 04/17/2001 |
| 6156174 | Immersion sensor for measuring an electrochemical activity 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 reproducible... | 12/05/2000 |
| 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 |
| 5902468 | Device for conducting electrochemical measurements in glass or salt melts A device for conducting electrochemical measurements in glass or salt melts has at least one indicator electrode and one reference electrode arrangement. In order to be able to conduct very exact measurements, the tip of the indicator electrode intended t... | 05/11/1999 |
| 5792329 | Apparatus to measure an electro-chemical activity The invention relates to a method to measure an electro-chemical activity of a non-metallic liquid layer lying on a molten bath by means of a measuring cell with an electro-chemical element which has an active part and with a counter electrode. The invent... | 08/11/1998 |
| 5656143 | Sensors for the analysis of molten metals A solid electrolyte sensor to measuring the amount of trace elements, such as sulfur, in molten metals such as steel is provided wherein zirconia toughened strontium ଲ-alumina is used as the solid electrolyte. The resulting sensor is highly resistan... | 08/12/1997 |
| 5580439 | Reference electrode for electrochemical determination of oxygen partial pressure in an ionic melt The method of electrochemical determination of oxygen partial pressure in ionic melts includes providing a metal/metal oxide reference electrode consisting of an electrode body made of a metal selected from the group consisting of Mo, W, Hf, Nb and Ta and... | 12/03/1996 |
| 5445725 | Sensor probe for measuring hydrogen concentration in molten metal and method for measuring hydrogen concentration On the inner surface of sensor element made of proton conductive solid electrolyte with perovskite structure and enclosed at its lower end, a reference electrode constituted of porous electrode is formed, and a measuring electrode constituted of porous el... | 08/29/1995 |
| 5387329 | 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... | 02/07/1995 |
| 5322609 | Device for detecting electrolytes in liquid samples A biosensor device for detecting electrolytes in liquid samples includes a capillary tube having a lumen extending therethrough. This lumen receives and retains liquid to be sampled for electrolytes. A tube holder is engaged at one end of the tube. This t... | 06/21/1994 |
| 5277781 | Zirconia oxygen sensor A zirconia oxygen sensor for measuring oxygen potential in the molten bath of a metal or alloy having a melting point of 350-550° C., which comprises a reference electrode which is of a substance having a melting point of the same level as or lower than ... | 01/11/1994 |
| 5256272 | Electrochemical sensor for determining the level of a certain metal in metals and alloys An electrochemical sensor for determination of the activity of a certain metal in a metal or alloy being tested comprises a solid electrolyte consisting of a solid solution of strontium fluoride and lanthanum fluoride to which is added a dispersed phase o... | 10/26/1993 |
| 5223125 | Oxygen sensor for aluminum killed, high silicon steel melts An improved expendable oxygen sensor particularly useful for measuring the dissolved oxygen content of an aluminum killed, high silicon steel bath is disclosed. The device has the typical closed end tube of solid electrolyte containing oxygen reference ma... | 06/29/1993 |
| 5122254 | Solid state electrode for the determination of sodium ion concentrations in solutions A solid state electrode for the determination of sodium ion concentrations in solutions, with a solid state electrolyte having a high conductivity for sodium ions being provided as the sodium sensitive membrane. The solid state electrode and a reference e... | 06/16/1992 |
| 5096552 | Monitoring of pyrometallurgical processes The concentration of an element in a molten metallurgical phase (3) is measured by applying an electrical potential across two electrodes (1, 2) separated by a solid electrolyte (7) containing cations of the element to be measured immersed in the melt, an... | 03/17/1992 |
| 4814062 | Membrane reference electrode A reference electrode utilizes a small thin, flat membrane of a highly conductive glass placed on a small diameter insulator tube having a reference material inside in contact with an internal voltage lead. When the sensor is placed in a non-aqueous ionic... | 03/21/1989 |
| 4717463 | Oxygen sensor An expandable immersion oxygen sensor for molten metal is provided with an improved oxygen reference electrode including Cr, Cr2 O3, NiO, and Fe and the oxygen electrode and thermocouple are secured in the face of the sensor by resin... | 01/05/1988 |
| 4708783 | Apparatus for the determination of silicon in molten metal Use of a sensor in the electro-chemical determination of silicon dissolved in a molten metal, said sensor comprising a layer of a solid electrolyte capable of conducting oxygen ions, a reference electrode in contact with one surface of said layer of the s... | 11/24/1987 |
| 4451350 | Sensor for measuring density of oxygen in molten metal A sensor comprising a solid electrolytic having oxygen ion conductivity to measure the amount of oxygen in molten metal by forming an oxygen concentration cell in which the solid electrolytic element is coated on the surface thereof with mixture which is ... | 05/29/1984 |
| 4342633 | Oxygen sensor The device for measuring active oxygen content in a bath of molten metal includes an electrochemical cell having a consummable shield for protecting the cell from thermal shock during immersion.... | 08/03/1982 |
| 4338127 | Addition and measurement of gases dissolved in molten metals Method and apparatus for measuring gases dissolved in molten metal. Also disclosed are method and apparatus for dissolving gases in molten metal and a method of forming a gas permeable but molten metal impervious ceramic tube. A ceramic member is leached ... | 07/06/1982 |
| 4175020 | Method of sterilizing reference electrodes and the like A reference electrode having a first tubular member, an elongate electrode element disposed within the tubular member, and a second tubular member disposed within the first tubular member to protrude out one end thereof is sterilized by aspirating through... | 11/20/1979 |
| 4105507 | Method and system for instantaneously determining the oxygen activity in molten metals A system for determining the oxygen activity in molten metals includes a measuring probe insertable in the melt and provided with an electrochemical cell, a thermoelement, and three contact devices. The probe is mounted at the end of a measuring lance. A ... | 08/08/1978 |
| 4007106 | Device for measuring oxygen concentration in molten-metal The present invention is directed to an improved method of measuring oxygen concentration in molten metal using the galvanic oxygen concentration cell method. It consists of providing a layer of inert gas between the cell electrolyte and the melt, this pr... | 02/08/1977 |
| 3980543 | Electrochemical cell structure An assembly for insertion in a bath of molten material to form therewith an electrochemical cell for determining the concentration of a constituent of the bath. The assembly is of the type including a body structure of refractory material from which protr... | 09/14/1976 |
