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| Number | Title | Issue Date |
| 7726876 | System and method for non-intrusive thermal monitor Embodiments disclosed herein provide a non-intrusive thermal (NIT) monitor for sensing temperatures useful for semiconductor manufacturing applications. In some embodiments, a NIT monitor comprises a thermopile, a fluid housing with a fluid window, and an elongated ... | 06/01/2010 |
| 7140765 | Device and method for discrete and continuous measurement of the temperature of molten metal in a furnace or recepient for its production or treatment A device (10) for continuous measurement of the temperature of molten metal in a furnace or recipient for its production and treatment comprises a heat analysis instrument (14) placed in a lance (12) which blows inert gas and/or high-pressure co... | 11/28/2006 |
| 7091470 | Purge air flow passage structure A purge air flow passage structure has an air flow passage for ventilating the purge air, a separation space that is provided in the air flow passage and separates dust in the purge air therefrom, and a filter that is provided in the air flow passage, is positioned ... | 08/15/2006 |
| 7076956 | Combustion chamber for gas turbine engine A combustion chamber suitable for a gas turbine engine is provided with at least one Helmholtz resonator having a resonator cavity and a damping tube in flow communication with the chamber interior. The damping tube is provided with at least one cooling hole extendi... | 07/18/2006 |
| 7001067 | Pyrometer for measuring the temperature of a gas component within a furnance A pyrometer for use in measuring temperatures in a furnace, has a lens-tube for supporting an optical head in a port of the furnace for viewing an interior of the furnace along a line of sight. The optical head converts infrared radiation to electrical signals. A ph... | 02/21/2006 |
| 6923573 | Apparatus and method for measuring temperature of molten metal The invention provides a cooling system for protecting an image fiber and an imaging device from thermal influences and a temperature measurement apparatus, for a molten metal, capable of being easily controlled and stably measuring the temperature. The temperature ... | 08/02/2005 |
| 6733173 | Pyrometer for measuring the temperature of a gas component within a furnace A pyrometer for use in measuring temperatures in a furnace, has a lens-tube for supporting an optical head in a port of the furnace for viewing an interior of the furnace along a line of sight. The optical head converts infrared radiation to electrical signals. A ph... | 05/11/2004 |
| 6641301 | Radiation detector with passive air purge and reduced noise A method and apparatus for maintaining a viewing window of a detector substantially clean includes enclosing the detector within a housing, and moving a target surface relative to the viewing window to create an airflow adjacent the viewing window. The ho... | 11/04/2003 |
| 5957582 | Thermal sensor assembly An infrared thermal sensor assembly for sensing the temperature of a target, the sensor assembly including a heat sink having a bore therethrough; a thermopile housed in the bore; and a heater operative to heat the heat sink.... | 09/28/1999 |
| 5599105 | Purge assembly A purge assembly for mounting to a radiation thermometer, comprises a purge tube for mounting in front of the radiation thermometer. At least two axially spaced chambers are positioned about the purge tube, each pair of chambers being linked by a respecti... | 02/04/1997 |
| 5326173 | Apparatus and method for remote temperature measurement An apparatus and method for remotely measuring emissivity and hence temperature of a surface of an object. The apparatus includes a detector having a radiation receptor for measuring infra-red radiation, an integrating cavity surrounding the receptor for ... | 07/05/1994 |
| 5323005 | Method and apparatus for monitoring energy radiant from a dispensed heated material The monitoring of energy radiating from a heated material, such as a hot melt adhesive, dispensed onto a substrate may be accomplished by an infrared sensor. The wand of the infrared sensor is located downstream of the dispensed material for receiving the... | 06/21/1994 |
| 5211478 | Housing for temperature measuring apparatus A light guide has a window through which radiation passes to a detector. The light guide is provided with a housing which defines a duct through which a flow of cooling fluid passes. The duct is arranged so that a proportion of the fluid flow passes over ... | 05/18/1993 |
| 5152608 | Thermocouple purge system In a temperature measuring system for determining the temperature at numerous levels within a reactor: A flexible thermocouple support is introduced into a well which is positioned inside the reactor; the measuring system includes a hollow flexible thermo... | 10/06/1992 |
| 5146244 | Window purging system for a combustion instrument A purging air flow system that causes air to pass over a pyrometer lens or window to keep it clean and free from particulate contaminants has an annular, continuous slot for air inlet around the periphery of the lens to permit flow of air across the lens ... | 09/08/1992 |
| 5049642 | Aromatic polymers Sulphonated polyarylethers or thioethers are formed by polycondensing difunctional monomers having phenolic and/or thiophenolic and/or halogenic end groups in the presence of a dipolar aprotic solvent, at least to one of which monomers a sulphonic acid or... | 09/17/1991 |
| 5005986 | Slag resistant thermocouple sheath This invention pertains to an improved high temperature slag resistant thermocouple sheath for protecting thermocouples used to measure the temperature of synthesis gas, reducing gas, or fuel gas produced by the partial oxidation of ash-containing liquid ... | 04/09/1991 |
| 4934137 | Temperature measurement in turbine engines A turbine engine (10) having an optical pyrometer (38) for temperature measurement within the turbine (24) is disclosed. The shroud (64) of the turbine has a deflection surface (142) on the downstream side of an aperture (60) through which the pyrometer (... | 06/19/1990 |
| 4867574 | Ultra high speed infrared temperature measuring device A high speed infrared temperature measuring device which consists of a lens barrel in an instrument housing, a sensor in the lens barrel to read an infrared target signal, a processing circuit for the signal, an automatic circuit for the thermoelectric co... | 09/19/1989 |
| 4836689 | Asymmetric purge air system for cleaning a lens A purging air flow system for passing air over a lens to keep it clean and free from particulate contaminants and also for providing a positive flow of air away from the lens has baffles which cause a flow across the lens that is not symmetrical to avoid ... | 06/06/1989 |
| 4831258 | Dual sensor radiation detector A radiation detector has a dual element sensor. One sensor element detects thermal radiation of a target at the same time the second sensor element detects thermal radiation of a reference object adjacent to the target. The dual element sensor produces a ... | 05/16/1989 |
| 4786188 | Purge air system for a combustion instrument A radiation instrument has a purging air flow system for passing air over the lens to keep it clean and free from particulate contaminants and also for providing a positive flow of air away from the lens. The air supply used for such purging is controlled... | 11/22/1988 |
| 4776705 | Thermocouple for use in a hostile environment A thermocouple system for use in a high temperature reactor wherein a carbonaceous fuel is burned to produce a usable gas and a residual slag. The thermocouple is enclosed in a gas tight metal protection sheath which is inserted inside a multi-segment ref... | 10/11/1988 |
| 4738528 | Pyrometer vortex purge air cleaning system with center masked pyrometer lens Cleansing of a pyrometer lens is achieved by directing purge air spirally inward over the lens surface. The vortex formed by the spiral air flow is highly effective in removing contaminating matter from the lens surface. A light blocking or masking elemen... | 04/19/1988 |
| 4650318 | Radiation pyrometer with gas purge A radiation pyrometer has an inner tube with a lens mounted in a rear portion which is stepped to a forward portion of reduced diameter that is open at its forward end. An outer tube extends coaxially around the inner tube and is separated from it by an a... | 03/17/1987 |
| 4648711 | Sight tube assembly and sensing instrument for controlling a gas turbine A slight tube assembly, in combination with a sensing instrument, such as an optical pyrometer, for use in continuously monitoring the temperature of the first row of rotating blades in large gas turbines, particularly the type used in industry. Temperatu... | 03/10/1987 |
| 4619533 | Tuyere pyrometer An apparatus for measuring bath temperature of metallurgical furnaces through a tuyere is disclosed. The apparatus comprises a periscope adapted to be inserted into a tuyere, a fiber optic cable having one end connected to the periscope for receiving radi... | 10/28/1986 |
| 4525080 | Apparatus for accurately measuring high temperatures The present invention is a thermometer used for measuring furnace temperaes in the range of about 1800° to 2700° C. The thermometer comprises a broadband multicolor thermal radiation sensor positioned to be in optical alignment with the end of a blackb... | 06/25/1985 |
| 4462698 | Noncontact temperature sensing method and apparatus for ladle preheating A ladle preheat station includes a wall, a ladle base for holding a ladle juxtapositioned to the wall on one side thereof, and burner extending through the wall for firing into the ladle interior. The wall includes a sight tube extending therethrough. An ... | 07/31/1984 |
| 4435093 | Pyrometer with sighting window cleanliness monitor Coke guide and coke oven infrared pyrometer degrading is minimized to continuously permit better accuracy and reliability in hostile environment of coke mass and heat, dust and/or dirt present in many coke plant areas. These benefits are obtained using pr... | 03/06/1984 |
| 4411533 | System for measuring temperature of hot gases laden with entrained solids An improvement for a system used to measure temperature of hot gases that are laden with entrained solids. The system involves use of a pyrometer that is mounted outside of a sight hole through the wall of a vessel containing the laden hot gases. And, the... | 10/25/1983 |
| 4259866 | Pyrometer assembly having a heated viewing tube A viewing tube extension for an infrared radiation pyrometer includes a tube having a heater therein. The heater has a passageway so that the pyrometer sights a glass ribbon moving through a forming chamber of a flat glass making apparatus. Vapors from th... | 04/07/1981 |
| 4118985 | Radiation pyrometers Temperature measuring apparatus of the photometric type having a fiber optics device for conducting radiation to a signal producing detector. Provision is made for a purging fluid at the opposite end of the fiber optics device to keep foreign matter from ... | 10/10/1978 |
| 4063458 | Method and apparatus for operating instruments subject to radiation The invention relates to a method for the operation of an instrument subjected to a radiation, which is protected from the harmful influence of the radiation by means of an auxiliary medium and/or swinging in of a protective shield between source of radia... | 12/20/1977 |
| 4037473 | Radiation pyrometers with purging fluid Temperature measuring apparatus of the photometric type having a fiber optics device for conducting radiation to a signal producing detector. Provision is made for a purging fluid at the opposite end of the fiber optics device to keep foreign matter from ... | 07/26/1977 |
