Matches 1 - 19 out of 19

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US20110080296 Fire Detection Fault Enhancement  
A fire detection switch for use in a fire detection circuit of a aircraft engine, having: a first resistor and a second resistor disposed in series between a common terminal and an alarm terminal;...
US20120001760 Optically Redundant Fire Detector for False Alarm Rejection  
A system for confirming the detection of a fire using a plurality of radiation or flame sensors each equipped with a radiation detector and an optical filter having a spectral transmission...
US20080252468 Manipulation Protection for a Fire Detector  
A method for differentiating between a fire and the manipulation of a fire detector. The fire detector has at least two sensor units, each of which contains a light source and a light collector. A...
US20070298359 Method and Device for Igniting and Monitoring a Burner  
A method of igniting and monitoring a high speed burner with which a fuel/oxygen-mixture exits at high velocity from a burner head, wherein the length of the flame is governed by the exit velocity...
US20080309501 Electronic System for Defence Against Fires in Forest Areas and More Generally for Monitoring the Territory  
The invention refers to an electronic system for defence against fires in forest areas and more generally for monitoring the territory. The system comprises a network of alarm stations (SA)...
US20100073172 DUAL CONDITION FIRE/SMOKE DETECTOR WITH ADJUSTABLE LED CANNON  
A dual condition fire/smoke detector system includes a housing and a sensor comprising at least two of a photoelectric sensor, a heat sensor, an ionization sensor or a carbon monoxide sensor...
US20080030351 Alarm device of barbeque  
An alarm device includes a thermocouple arranged in a barbeque to detect a flaming condition of the barbeque and to supply a corresponding analog detection signal, a signal amplifier comparator...
US20100289650 Fire alarm  
A fire alarm consists of a housing in which sensors, a radiation source, and an optical window are disposed. A reflector protection basket or ring is disposed above the optical window. The basket...
US20070290868 Infrared Detector  
An infrared detector comprising a plurality of bolometer detectors, bias circuitry for applying a bias to the bolometer detectors, and connectors for connecting the bolometer detectors together to...
US20080309502 Method and Device for Detecting Forest Fires  
The invention relates to a method of detecting a fire in a wooded area. Some trees in the area are provided with a fire sensor having a radiofrequency emitter able to emit information for...
US20080266120 COMBUSTION INSTABILITY DETECTION  
Combustion instability in combustion appliances may be recognized before excessive carbon monoxide may be produced. In some instances, combustion instability may be manifested in flame...
US20090174561 System and Method for Transmitting Security Information Over a Passive Optical Network  
An optical network terminal (ONT) includes an input device coupled to at least one sensing device mounted in a structure, and an output coupled to a passive optical network (PON). The ONT also...
US20090315722 Multi-wavelength video image fire detecting system  
To eliminate the drawbacks of false alarm problems due to mimic flame features of sunlight or moonlight reflecting on wave or mimic flame features of fabrics, animals or stage flames and alarm...
US20080191886 Flame detecting method and device  
A flame detecting method and device are provided to improve the accuracy of flame detection and reduce the possibilities of the false fire alarm. The flame detecting method and device capture a...
US20120126985 Target Based Smoke Detection System  
A smoke detector includes processing circuitry coupled to a camera. The field-of-view of the camera contains one or more targets, each having spatial indicia thereon. At least a portion of one of...
US20100188235 Alarm Unit  
An alarm unit of the invention is provided with: a light emitting section; a battery power supply; a voltage booster circuit that boosts a voltage from this battery power supply to thereby...
US20170108381 FLAME DETECTORS AND ASSOCIATED METHODS  
A flame detector (1) including: a fire sensor (2a), capable of detecting a characteristic blackbody-type radiated heat signature emitted by a flaming material; and a guard sensor (2b), for...
US20160328938 SYSTEM AND METHOD FOR DETECTING AND SUPPRESSING FIRE USING WIND INFORMATION  
A fire detection and suppression system correcting fire detection based on wind. Wind may affect both the apparent position of the fire detected by the fire detectors and also the suppressant jet...
US20160307423 Flame Detector For Monitoring A Region Adjacent To Bodies Of Water And Taking Into Consideration A Degree Of Polarization Present In The Received Light For The Activation Of A Fire Alarm  
A flame detector, may be aligned to cover a region to be monitored near a body water. The flame detector has at least one radiation sensor and a downstream evaluation unit. The at least one...
Matches 1 - 19 out of 19