Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Application No. | Application Title | Issue Date |
| 20120126985 | 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 the targets is coated, at least in part, by an infra-red absorbing dye. Th... | 05/24/2012 |
| 20120001760 | 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 characteristic in which at least one optical filter is redundant to at least one ... | 01/05/2012 |
| 20110080296 | 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; and a thermally-sensitive element having a different resistance at low te... | 04/07/2011 |
| 20100289650 | 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 or ring is suitable for protecting the optical window against mechanical i... | 11/18/2010 |
| 20100188235 | 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 generate a boosted voltage; a light emission control section that controls the vo... | 07/29/2010 |
| 20100073172 | 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 disposed within the housing. A wireless communication system associated with th... | 03/25/2010 |
| 20090315722 | 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 failures of methanol or ethanol burning flames or flames under a high illumin... | 12/24/2009 |
| 20090174561 | 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 includes a processor programmed to receive security information from the inpu... | 07/09/2009 |
| 20080309502 | 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 identifying and/or locating each sensor, according to a grid of the area to be mon... | 12/18/2008 |
| 20080309501 | 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) distributed over the territory being controlled, where each alarm station (SA) i... | 12/18/2008 |
| 20080266120 | 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 oscillation, or rather, in oscillations in flame intensity as measured, for example, ... | 10/30/2008 |
| 20080252467 | INSULATOR FOR TUBE HAVING CONDUCTIVE CASE One embodiment includes an electromagnetic sensor which includes a header, an anode connected to a first terminal extending through the header, the anode in electrical isolation from the header, a cathode connected to a second terminal extending through the header, the ... | 10/16/2008 |
| 20080252468 | 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 cover plate is formed with at least two light exit and entry windows. The... | 10/16/2008 |
| 20080191886 | 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 plurality of images of a monitored area; determines whether a moving area im... | 08/14/2008 |
| 20080030351 | 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 circuit receiving and amplifying and calibrating the analog detection signal... | 02/07/2008 |
| 20070298359 | 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 of the mixture. The invention is characterized by placing an electrically... | 12/27/2007 |
| 20070290868 | 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 form a network, wherein the bolometer detectors are arranged in an enviro... | 12/20/2007 |
| 20060226995 | Flame detector Provided is a flame detector 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 infrared sensor for detec... | 10/12/2006 |
| 20060017578 | 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 Netwo... | 01/26/2006 |
| 20050195086 | Hydrogen fire detection system & method To detect flames burning carbon-free hydrogen-bearing fuels, first, second, and third sensors sense first, second and third regions of an infrared water emission band, and generate first, second, and third signals. A processor generates an alarm when the sensors indicat... | 09/08/2005 |
| 20050140514 | Flame sensor for a burner A flame sensor circuit is used to sense the presence or absence of a flame in a burner. A first sensor generates a first intensity signal which is proportional to the light intensity of the flame in the burner. A second sensor generates a second signal produced by the f... | 06/30/2005 |
| 20050012626 | Fire detection method A method for detecting a fire while discriminating against false alarms in a monitored space containing obstructed and partially obstructed views includes the steps of positioning an infrared camera in a location where the camera has both a direct view of a first portio... | 01/20/2005 |
