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| Number | Title | Issue Date |
| 7646005 | Variable length adjustable flame scanner An apparatus for varying a length of a flame scanner assembly for monitoring a flame includes a mounting shaft which connects to a fiber optic cable assembly; and a spool assembly having a first end and a second opposite end. The first end connects to a detector hea... | 01/12/2010 |
| 7420195 | Frequency-optimized detection of gun muzzle flashes Methods for remotely detecting a gun muzzle flash, using frequency-optimized detection methods. Small explosive charges are best detected at I/R and visible wavelengths, using optical detectors, whereas large explosive charges may also be detected with antennas. Det... | 09/02/2008 |
| 7375314 | Self-cleaning optical sensor The invention relates to an optical sensor for detecting light emission in combustion processes in a combustion chamber. At least one lens of the sensor faces the combustion chamber and is disposed on the tip of the sensor. The inventive sensor is provided with a he... | 05/20/2008 |
| 7297970 | Flame detector A flame detector having the following features is capable of simple and reliable determination of the occurrence or nonoccurrence of fire resulting from a flame based on waveforms detected from detection signals from infrared sensors. The flame detector includes an ... | 11/20/2007 |
| 7281382 | Method and apparatus for detecting the presence of flame in the exhaust path of a gas turbine engine A method and apparatus for monitoring the exhaust path of a gas turbine engine for the presence of unwanted flames downstream from the main combustion chamber(s). The system is comprised of an Electro-Optics Module containing sensors and associated processing electr... | 10/16/2007 |
| 7280891 | Signal processing technique for improved flame scanner discrimination A signal processing technique that allows the flame signal from a first source of flame and the flame signal from a second source of flame to be discriminated from each other when only both the first and second flame signals are viewed by the same flame scanner. The... | 10/09/2007 |
| 7255285 | Blocked flue detection methods and systems The present invention is directed at systems and methods for detecting flue blockages in an HVAC system without the addition of numerous additional sensor elements, wiring, and connections that can unduly increase the cost and possibly reduce the reliability of the ... | 08/14/2007 |
| 7256401 | System and method for fire detection A system and method for detecting radiation indicative of fire, such as forest fire. In one embodiment, a threshold energy level is determined based on ambient sensor conditions. A sensor unit may be setup to scan a predetermined area for electromagnetic radiation. ... | 08/14/2007 |
| 7229278 | Flame quality and fuel consumption monitoring methods for operating a primary burner A control system for controlling an oil or gas burner heating system comprises an ultraviolet flame sensor. Flame is detected and preanalyzed by the control for flame quality factors reflecting the degree of drift from optimal operating conditions including the aver... | 06/12/2007 |
| 7217942 | Plasma leak monitoring method, plasma processing apparatus and plasma processing method In a plasma processing apparatus that forms plasma from a process gas by supplying the process gas into a processing container and applying high-frequency power to an electrode provided inside the processing container on which a workpiece is placed and executes spec... | 05/15/2007 |
| 7217121 | Method and apparatus for improved process control in combustion applications This invention relates to a method and apparatus for improved process control in combustion applications, and particularly those relating to the steelmaking industry. An apparatus is provided for process control in a combustion application comprising a laser to tran... | 05/15/2007 |
| 7202794 | Flame detection system A flame detection system includes a plurality of sensors for generating a plurality of respective sensor signals. The plurality of sensors includes a set of discrete optical radiation sensors responsive to flame as well as non-flame emissions. An Artificial Neural N... | 04/10/2007 |
| 7186947 | Process monitor for laser and plasma materials processing of materials A method for monitoring the processing of a workpiece includes directing an incident laser beam onto the workpiece and measuring a signal emitted from the workpiece. At least two signals are generated by a detector based upon the emitted signal. A workpiece processi... | 03/06/2007 |
| 7182271 | Apparatus and method for detecting liquid flow from a spray device A flow sensor for detecting liquid flow generated by a spray device is non-invasive and capable of responding to rapid changes in the flow. The flow sensor includes a light emitter and a light detector, which may be disposed adjacent the liquid outlet of the spray d... | 02/27/2007 |
| 7184862 | Turret targeting system and method for a fire fighting vehicle A turret control system and method for a fire fighting vehicle is disclosed. The turret control system includes one or more control modules, such as an envelope control module, turret targeting module, a turret pan module, a turret deploy module, a turret store modu... | 02/27/2007 |
| 7088253 | Flame detector, method and fuel valve control A flame detector and burner fuel valve control has an ultraviolet sensitive, cold cathode, gas discharge tube in a DC quench circuit. In the presence of a flame, the circuit generates a pulse signal at a frequency related to the intensity of radiation from the flame... | 08/08/2006 |
| 7082352 | Temperature control apparatus for a heater using an encoder switch and method thereof Disclosed is a temperature control apparatus for a heater using an encoder switch and method thereof that controls an indoor temperature by driving a burner in accordance with a change of an indoor temperature and ventilating heated air indoors. The temperature cont... | 07/25/2006 |
| 7019283 | LED burning prevention The present invention provides a flame resistant LED construction. The flame resistant LED construction of this embodiment comprises a substrate, one or more LEDs that emits light mounted on the substrate, and an intumescent material adjacent to the LEDs. The positi... | 03/28/2006 |
| 7019306 | Flame sensor A UV flame sensor is formed on a multilayer printed circuit board. The circuitry of the sensor includes a photodiode for detecting an input signal, an amplifier for amplifying the input signal, a FET for providing automatic gain control, and at least one capacitor f... | 03/28/2006 |
| 7008217 | Safety device for boiler comprising a time delay protected by an electronic circuit A safety device for an industrial boiler (CHA) including electromechanical relays (REn, RS), which are connected in series in order to form an electromechanical safety chain (CH1), and at least one shunt relay (RTn) which is normally ope... | 03/07/2006 |
| 6958816 | Microrheology methods and systems using low-coherence dynamic light scattering Methods and systems for using dynamic light scattering, for investigating local rheological responses of complex fluids over a frequency range larger than that provided by standard instrumentation. A low-coherence radiation source is used with fiber optics to allow ... | 10/25/2005 |
| 6947802 | Centralized control architecture for a laser materials processing system Apparatus, systems, and methods for monitoring the processing of a workpiece that includes directing an incident laser beam onto the workpiece and using an optical detector for measuring a signal emitted from the workpiece as a result of the incident laser beam. The... | 09/20/2005 |
| 6946647 | Multicolor staring missile sensor system A sensor system for viewing the light energy of a scene has an imaging detector which converts incident light energy into an electrical signal. Two colors are separately imaged by the detector in two imaging regions. The imaging system for each color includes a colo... | 09/20/2005 |
| 6927394 | Fire detector with electronic frequency analysis A process and system for flame detection includes a microprocessor-controlled detector with a first sensor for sensing temporal energy in a first optical frequency range, and a second sensor for sensing temporal energy in a second optical frequency range. The tempor... | 08/09/2005 |
| 6914246 | Method and apparatus for spatially resolving flame temperatures using ultraviolet light emission A method for spatially resolving flame temperatures in which a temperature-dependent wavelength region of a molecule radical spectrum and a normalization wavelength region of the molecule radical spectrum suitable for normalizing spectral data are identified. An alg... | 07/05/2005 |
| 6903357 | Solid state spark detection An apparatus, system, and method for solid state spark detection are disclosed. A semiconducting photodetector has a pair of electrical conductors for carrying an electrical current generated when the semiconducting photodetector receives light energy generated by s... | 06/07/2005 |
| 6853358 | Method and device for driving a plasma display panel A method for driving a plasma display panel is provided in which wasteful power consumption is reduced and ion bombardment that may deteriorate cells is suppressed for a long life of cells. A ratio of lighting that is a ratio of the number of cells to be lighted to ... | 02/08/2005 |
| 6797939 | Method for monitoring plasma or flame-spray processes A method for measuring characteristic properties of a plasma beam in a thermal spraying process, wherein the spraying materials are fed into the plasma (1) and the luminous radiation emitted by the plasma (1) is reproduced on optical fibers (2).... | 09/28/2004 |
| 6700495 | Flame monitor for an oil- and gas-operated burner The invention relates to a flame monitor for an oil- or gas-operated burner, having a photosensor which detects the optical flame radiation and an evaluation circuit which is connected downstream of said photosensor and ascertains whether the radiation re... | 03/02/2004 |
| 6652266 | Flame sensor and method of using same A flame sensor for sensing the presence of a flame in a burner. The signal from the sensor is passed to an amplifier located adjacent to the sensor and amplified without having a sensor signal contaminated with common mode radiation. The selectively ampli... | 11/25/2003 |
| 6649924 | Optoelectronic measuring device An optoelectronic measuring device for monitoring combustion processes in the combustion chamber of an internal combustion engine during operation includes optical sensors assigned to the combustion chamber and connected to an evaluation unit, the sensor ... | 11/18/2003 |
| 6583404 | Photoelectric smoke detecting apparatus A photoelectric smoke detecting apparatus capable of generating analog data accurately indicating a smoke density regardless of a presence or absence of contamination. A control unit for outputting the analog data corresponding to the smoke density based ... | 06/24/2003 |
| 6551094 | Method and device for determining a soot charge in a combustion chamber A method for determining a soot charge in a combustion chamber includes measuring a spatial distribution of at least one parameter characteristic of a combustion by monitoring a flame in the combustion chamber. The at least one parameter allows a conclusi... | 04/22/2003 |
| 6545608 | Smoking rules enforcement apparatus A flame-sensing element and supporting circuitry is disguised by installing it in an object normally found within the type of room in which it is to monitor. In the best example, a lavatory is monitored by installing a mock fire-safety sprinkler head on t... | 04/08/2003 |
| 6486486 | Flame monitoring system The invention concerns a flame monitoring system and a method of monitoring a flame with a flame sensor (1) which converts the radiation emanating from the flame into a flame signal (U1) and a flame signal amplifier (40) which converts the flam... | 11/26/2002 |
| 6346712 | Flame detector A flame detector with a radiation sensor (1) sensitive in the ultra-violet and/or visible range of the electro-magnetic spectrum, forms from the signal U1 at the output of the radiation sensor, a first signal U2 which is proportional to the direct voltage... | 02/12/2002 |
| 6329921 | Flame detector units and flame management systems A flame management system comprises two flame detector units which are arranged to view different regions of at least one flame and are connected to separate channels of a processor. Each detector unit has at least two operating modes, such as an infra-re... | 12/11/2001 |
| 6320184 | Optoelectric measuring device for monitoring combustion processes An optoelectronic measuring device for monitoring combustion processes in a combustion chamber of an internal combustion engine during operation is provided with optical sensors which are connected to an evaluation unit. The optical sensors may be located... | 11/20/2001 |
| 6300876 | Fire detector A fire detector which can be observed an operating state thereof from every direction and decrease a cost thereof as possible. The fire detector (10) comprises: the circuit board (32) in which the circuit for detecting a fire is formed; the LED (35) which... | 10/09/2001 |
| 6278374 | Flame detection apparatus and method The present invention relates to flame detection apparatus and method. The present invention provides a method and apparatus for monitoring the status of a combustion unit having at least one bumer. Initially, a digital image of a flame corresponding to a... | 08/21/2001 |
