Class / Patent application number | Description | Number of patent applications / Date published |
340577000 | Flame | 53 |
20080246618 | Fire Detector - A fire detector including a base and a fire detector insert connectable to the base. The fire detector insert is connectable to the base by an axial movement and detachable from the base by a subsequent axial movement. | 10-09-2008 |
20080258924 | FIRE ALARM SYSTEM - A fire alarm system is disclosed where the unit detectors are addressable and in communication with other unit detectors located within a particular unit and are in communication with building detectors such that when one unit detector activates, all the other unit detectors in that unit also activate causing communication with the building core detectors and alerting the control room as to the exact location of the alarm condition. | 10-23-2008 |
20080272921 | FIRE DETECTION SYSTEM AND METHOD - A fire detection system for detecting fires may include an infrared detector array. The fire detection system may use the infrared detector array to monitor the temperature of a target environment over time. In some cases, a positioning apparatus may be used to move the field of view of the infrared detector array, allowing the infrared detector array to scan a relatively large target environment while still achieving a given resolution. | 11-06-2008 |
20090009344 | FLAME ROD DRIVE SIGNAL GENERATOR AND SYSTEM - A flame rod drive signal generator and system for producing a flame rod drive signal for a flame rod of a combustion system. In one illustrative embodiment, the flame rod drive signal generator may include a voltage source, an input signal having a frequency, an LC oscillator and a drive mechanism. The drive mechanism may be powered by the voltage source, and may have an output coupled to the LC oscillator. The drive mechanism may receive the input signal, and produces a current in the LC oscillator that has a frequency that is related to the frequency of the input signal. The LC oscillator may then provide a flame rod drive signal to a flame rod that has an amplitude that is larger than the amplitude of the voltage source. In some cases, a controller may monitor the amplitude of the flame rod drive signal and adjust the frequency, duty cycle, or both, of the input signal to achieve a desired amplitude of the flame rod drive signal. Alternatively, or in addition, the controller may monitor an ionization current produced by the flame rod when the flame rod is subject to a flame. | 01-08-2009 |
20090051551 | Apparatus and method for wireless location sensing - A sensor assembly includes a sensor configured to detect at least one material or condition, such as a smoke detector, fire detector, or carbon monoxide detector. The sensor assembly also includes a base configured to be mounted on a structure, such as a wall or ceiling, and to receive the sensor. The sensor assembly further includes a wireless module located between the sensor and the base. The wireless module is configured to transmit position information. The wireless module may include one or more electrical contacts used to form at least one electrical connection between the base of the sensor assembly and the sensor. The wireless module may also include a printed circuit board having the contacts, wireless radio circuitry, an antenna, and other components. The printed circuit board could be substantially hidden from view when the sensor is attached to the base and the base is mounted on the structure. | 02-26-2009 |
20090066522 | Emergency guidance lamp system for guiding to nearest exit in the event of fire - An emergency guidance lamp system for guiding to the nearest exit in the event of a fire is provided. A fire detection sensor is installed at a specific region such as ceilings or passages of tunnels or large buildings, and detects a fire occurrence and sends a corresponding detection signal. A central control unit receives the detection signal from the fire detection sensor, judges a situation on the fire occurrence based on simulation result data of various numbers of cases of fire occurrence that have been previously performed and stored in an internal memory, and sends red and green lighting control signals most suitable for each guidance lamp apparatus installed at the site. A guidance lamp apparatus is installed on the ceiling, wall surface, or bottom surface of a passage or the like of tunnels or large buildings, and has a red lighting unit and a green lighting unit provided at the body thereof. | 03-12-2009 |
20090189773 | Ignition-source detecting system and associated methods - A system of ignition-source detection and prevention in containers and open materials handling systems. The system includes an electronic processor located in close proximity to a detector, a spray nozzle, and a valve. The electronic processor may be configured to be placed in a dust-hazard environment. The detector may be configured to detect radiation and/or a flame. Associate methods are also disclosed, including: a method of responding to an ignition source, a method of installing an ignition-source detection system, and a method of testing an ignition-source detection system. | 07-30-2009 |
20090207029 | SAFETY SENSOR DEVICE - A safety sensor device for an appliance detects burning conditions and shuts off power to the appliance. The device includes a sensor unit positioned near an exhaust of the appliance, and a relay unit connected along a power supply path to the appliance. The relay and sensor units are linked. The sensor unit includes a sensor for monitoring exhaust air from the appliance. The relay unit includes a circuit that electrically connects the appliance with a power source while in an ON state and electrically disconnects the appliance from the power source while in an OFF state, the circuit being responsive to the sensor unit to transition from the ON state to the OFF state if the sensor detects burning conditions. | 08-20-2009 |
20090256712 | Implicit Data Backup and Restoral System in a Peer-to-Peer Fire Detection Network - A fire detection network employs an implicit data backup and recovery system. The implicit data backup system allows fire detection units within a network to be automatically reprogrammed with configuration data. The detection units can store backup data and can access the stored backup data when necessary. | 10-15-2009 |
20090284379 | Remote Output System and Method - An ambient condition monitoring system includes a plurality of detectors such as smoke detectors, gas detectors, or fire detectors. Each of the detectors has two sets of input/output ports. One port can communicate with a system control unit. The second port can communicate with a local wired network to which is coupled a plurality of output devices. The output devices can be activated by the respective detector using a modulated control signal. | 11-19-2009 |
20090309740 | Switchable Strobe Lens - An alarm system notification device that comprises a single strobe, an input selector, and a controller is disclosed. The single strobe may be configured to operate at a first wavelength band in a first configuration and at a second wavelength band in a second configuration, the first wavelength band being different from the second wavelength band. The configuration of the single strobe (either in the first or second configuration) is determined based on a command that is input by the input selector. In response to receiving the command, the controller may control the single strobe so that the single strobe is configured to operate at one of the first wavelength band in the first configuration or the second wavelength band in the second configuration as indicated in the command. | 12-17-2009 |
20100001865 | FLAME DETECTION AND SUPPRESSION SYSTEM USING A THERMOELECTRIC GENERATOR - Apparatus and methods for protecting process equipment from a fire and/or an explosion are provided. In particular, the apparatus and methods utilize Seebeck sensors or thermoelectric generators to detect the propagation of a flame front or deflagration wave within the process equipment. Upon detection of the deflagration wave, the system controller activates mitigation apparatus which may be in the form of a chemical suppressant or isolation valves in order to protect the process equipment from damage. | 01-07-2010 |
20100013643 | System, Converter and Method for Wide Area Distribution of Supervised Emergency Audio - A wide area fire safety and detection system is disclosed. The system includes a control node configured to execute a first detection routine, wherein the control node has a network interface, and an amplifier having an audio output, wherein the amplifier is configured to communicate the audio output to a plurality of fire safety nodes. The system further includes a remote node in communication with the control node, wherein the remote node has a network interface configured for communication with at least the network interface of the control node, and an audio converter configured to receive the audio output and generated a converted audio output, wherein the converted out is compatible with a microphone input. | 01-21-2010 |
20100013644 | FLAME SENSING VOLTAGE DEPENDENT ON APPLICATION - A system for operating a flame sensing device to obtain readings of increased accuracy without degrading the life of the sensor. There may be levels of a flame requiring a precise measurement. One improvement of accuracy uses higher voltage on the sensor, but this degrades the sensor and thus shortens it life. Further improvement may be achieved by limiting the time that the sensor is operated at a higher voltage. Readings, as if the sensor were operated at a higher voltage, may be inferred from actual readings of the sensor operated at a lower voltage. | 01-21-2010 |
20100033334 | FIRE DETECTING SYSTEM AND WEIGHT CORRECTING METHOD PERFORMED THEREBY - A fire detecting system includes a plurality of detectors, and a computing unit coupled to the detectors. The detectors are configured for generating a plurality of detecting values, respectively. For each of the detectors, the detecting value is equal to a first predetermined value when a fire state is detected thereby, and is equal to a second predetermined value when otherwise. The computing unit sets a weight value for each of the detectors and a threshold value, and is configured to perform a weight correcting method for correcting the weight value of each of the detectors based on accuracy of operation of the detectors. | 02-11-2010 |
20100079295 | EMERGENCY DEVICE ACTUATOR ABSENCE NOTIFICATION SYSTEM AND METHOD THEREFOR - An emergency device actuator absence notification system and method therefore capable of notifying an observer or system supervisor of the presence and operability of the emergency device actuator and also capable of notifying an observer or system supervisor of the absence or inoperability of the emergency device actuator. | 04-01-2010 |
20100085195 | MONITORING METHOD - A method of monitoring an alarm system comprises transmitting a sound alert signal, receiving the transmitted sound alert signal, comparing the received sound alert signal with a reference signal having parameters dependent upon equivalent parameters of the transmitted sound alert signal, and outputting a signal indicating whether or not the equivalent parameters of the received sound alert signal have a predetermined relationship with said parameters of the transmitted sound alert signal. | 04-08-2010 |
20100117839 | SYSTEM AND METHOD FOR DETECTING FIRE - A system and method for detecting a fire includes a fire detection device and a control center terminal. The fire detection device includes an LRF for calculating a distance to a location of breakout of a fire using a laser. An infrared camera captures an infrared image and transmits the infrared image to a control unit. A CCD camera captures a CCD image and transmits the CCD image to the control unit. The control unit analyzes the infrared image, determines whether a fire has broken out, performs processing such that the CCD camera captures an area on fire, determines the location of breakout of the fire, performs processing such that the captured image is output to the control center terminal, and controls a function of a warning unit. The warning unit outputs a warning sound or a warning message. | 05-13-2010 |
20100164732 | EVACUATION SYSTEM - A method includes receiving occupancy information from a node located in an area of a structure, where the occupancy information includes a number of individuals located in the area. An indication of an evacuation condition is received from the node. One or more evacuation routes are determined based at least in part on the occupancy information. An instruction is provided to the node to convey at least one of the one or more evacuation routes. | 07-01-2010 |
20100188234 | Multiple Event Notification Appliance - An apparatus, system and method including an event notification appliance including first and second light sources configured to indicate an event, including a fire and/or alert. | 07-29-2010 |
20100259396 | FIRE ALARM SYSTEM - A fire alarm system, determining existence or nonexistence of a fire by using an ultrasound wave, comprises a sound wave generator and a sound wave detector to detect sound waves propagated through two propagation paths having different lengths each other. The system comprises a calculation means for calculating a pressure ratio between a first sound pressure, which is a sound pressure of a sound wave propagated through a first propagation path, and a second sound pressure, which is a sound pressure of a sound wave propagated through a second propagation path, and a smoke density estimator. The smoke density estimator calculates a change ratio between the pressure ratio calculated by the calculation means and a predetermined standard pressure ratio, and determines a smoke density from the change ratio based on a predetermined relational expression describing the relation between the change ratio and the smoke density, and determines existence of a fire when the smoke density exceeds a predetermined threshold. | 10-14-2010 |
20100265075 | LEAKAGE DETECTION AND COMPENSATION SYSTEM - A flame sensing system having a flame rod, a signal generator, a signal measurement circuit, and a controller, where the frequency and/or amplitude of the excitation signal may be variable. The signal measurement circuit may include a bias circuitry that references the flame signal to a voltage, a capacitor that varies the filtration, an AC coupling capacitor, a current limiting resistor, and a low-pass filter. The system may determine the flame-sensing rod contamination, the stray capacitance of the flame sensing system, and compensate for stray capacitance in the flame sensing system. The flame model may include a circuit that simulates a flame in the presence of the sensing rod, and another circuit that simulates a contact surface between the flame and the sensing rod. | 10-21-2010 |
20100302045 | Interface for a fire alarm system - An interface for a fire alarm system having a number of alarm condition detectors ( | 12-02-2010 |
20110043367 | INTELLIGENT NOTIFICATION APPLIANCE CIRCUIT AND SYSTEM - An intelligent notification appliance circuit has a controller and one or more addressable notification appliances coupled with a single pair of wires. The controller outputs integrated power, audio and control signals, and transmits the integrated signals to the one or more addressable notification appliances. Thus, the one or more addressable notification appliances are powered, operated, controlled, and monitored using the intelligent notification appliance circuit. When the intelligent notification appliance circuit is implemented in a fire and/or mass notification system, that system is able to provide integrated audio signals, power signals and control signals over a single pair of wires. The integrated audio signals may carry data indicative of live or recorded music and/or voice messages, such as: mass notification messages, general page, voice evacuation, and the like. | 02-24-2011 |
20110080295 | FIRE-PREVENTING TERMINAL DEVICE - To provide a fire-preventing terminal device that can eliminate the need to newly lay a power line and a signal line and can avoid problems caused by battery driving. Display lights | 04-07-2011 |
20110102183 | SPATIALLY RESOLVED TEMPERATURE MEASUREMENT INSIDE A SPATIAL DETECTION REGION - A device and a method enable a spatially resolved measurement of a temperature inside a spatially linear detection region. The device includes a measuring body having a first electric conductor, a second electric conductor, and an insulating material, which extends between the two electric conductors. The insulating material has a temperature-dependent specific electric resistance. The device further includes a measuring unit, which is connected to the first electric conductor and to the second electric conductor. The measuring unit has a transmitting unit and a receiving unit. The transmitting unit is equipped to apply a time-dependent electric input signal to the two electric conductors. The receiving unit is equipped to detect a time-dependent electric response signal of the measuring body to the input signal. Furthermore, an alarm system is described, which in addition to a central unit has at least one temperature measuring device of the type described above. | 05-05-2011 |
20130162434 | SIGNAL APPARATUS FOR AN ALARM INSTALLATION, ALARM INSTALLATION AND METHOD FOR OPERATING THE SIGNAL APPARATUS - Alarm installations in buildings or other environments are used to notify people of particular events, particularly hazards. By way of example, fire alarm installations usually have visual signal generators which, in the event of an alert, bring a hazard situation to the attention of people in a building by means of visual signals. In this case, the aim is to use the visual signals to prompt the people to leave the building via the escape routes. A signal apparatus ( | 06-27-2013 |
20130335229 | LED STROBES WITH FIXED PULSE WIDTH - An LED strobe notification device and method for operating an LED strobe notification device is provided. The LED strobe notification device is configured to generate an output at two or more candela settings and is configured to generate the output at the two or more candela settings having a human-perceived pulse duration with a fixed width. The LED strobe device includes: an LED strobe element; and an LED controller in communication with the LED strobe element with the LED controller configured to: receive a candela selection for the LED strobe element, the candela selection selected from the two or more candela settings; receive a command to activate the LED strobe element of the LED strobe notification device; and in response to receiving the command, control the LED strobe element in order to generate the output from the LED strobe element having the human-perceived pulse duration with the fixed width. | 12-19-2013 |
20140240133 | LED STROBES WITH FIXED PULSE WIDTH - An LED strobe notification device and method for operating an LED strobe notification device is provided. The LED strobe notification device is configured to generate an output at two or more candela settings and is configured to generate the output at the two or more candela settings having a human-perceived pulse duration with a fixed width. The LED strobe device includes: an LED strobe element; and an LED controller in communication with the LED strobe element with the LED controller configured to: receive a candela selection for the LED strobe element, the candela selection selected from the two or more candela settings; receive a command to activate the LED strobe element of the LED strobe notification device; and in response to receiving the command, control the LED strobe element in order to generate the output from the LED strobe element having the human-perceived pulse duration with the fixed width. | 08-28-2014 |
20140266740 | FLARE NETWORK MONITORNG SYSTEM AND METHOD - A flare monitoring system that receives real-time data associated with the release of a processing facility's combustible fluids to a flare stack and analyzes the data in conjunction with parameters of the processing facility's flare-through elements such as manual valves, control valves, restriction orifices, flow meters, and the like. The results of the analysis are provided to operators in the form of reports that indicate: whether flaring events are of a routine or non-routine nature; the flared volume; the contribution of the flare-through elements to the flared volume; and so forth. The results can aid operators in reducing combustible fluid losses due to flaring and in mitigating emissions of sulfur, nitrogen and carbon dioxide. | 09-18-2014 |
20150015401 | OWNER CONTROLLED EVACUATION SYSTEM - A method includes receiving, by a user device, information regarding a sensed condition in a structure, wherein the sensed condition is sensed by a sensory node. The method also includes generating, by the user device, a notification to a user of the user device, where the notification identifies the sensed condition. The method also includes determining, by the user device, whether the sensed condition exceeds a threshold. The method further includes identifying one or more actions that can be performed by the user in response to the sensed condition, where the one or more actions are based at least in part on the determining of whether the sensed condition exceeds the threshold. | 01-15-2015 |
20150077260 | SENSOR AND TRANSMISSION CONTROL CIRCUIT IN ADAPTIVE INTERFACE PACKAGE - A programmable interface module includes a linear power regulator to control and provide power to interfaced components on an as needed basis. The interface module is implemented in, for example, a sensor pack and multiplexed to a plurality of sensor modules. In a first mode, the linear voltage regulator provides a relatively small amount of power which allows a sensor module to output a signal responsive to detecting an environmental condition (e.g., gamma or x-ray radiation, extreme temperatures, etc.). The interface module can switch the linear voltage regulator to a second mode in which the linear voltage regulator ramps up the amount of power provided to a detecting sensor module. The sensor module can then provide a level indicative of a concentration or intensity of the environmental condition. If the level surpasses a predetermined threshold, the senor pack can output an alert signal to security server. | 03-19-2015 |
20150290482 | Smart Fire Extinguisher - Improvements to a portable fire extinguisher where the improvements relate to a system where the owner of the extinguisher can monitor and maintain their fire protection. Systems in place today require the servicing of a third party. The service companies (third parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. The improvements further include a wall mounting bracket that reduces tampering with the extinguisher, an automatic fluffing motor and manual fluffing wheel. The bracket and or the fire extinguisher can have intelligence that identifies the location and the status of the fire extinguisher that can be accessed by a computer or smart device like a cell phone or tablet. | 10-15-2015 |
20150348393 | Flame Sensing System - This invention relates to the field of sensing flames in equipment using a combustion burner such as gas furnaces by using the electrical properties of flames. In a first group of embodiments flame rectification is used to cause distortion of a signal having a selected waveform. A harmonic of the distorted waveform is detected thereby providing flame proof. In a second group of embodiments flame rectification is used as a mixer to cause two signals having selected waveforms to produce sum and difference signals. The sum and/or difference signals are detected thereby providing flame proof. | 12-03-2015 |
20160027265 | AN EMERGENCY MANAGER FOR A LIGHTING DEVICE - An emergency manager for a lighting device ( | 01-28-2016 |
20160035193 | NOTIFICATION APPLIANCE - A notification appliance is disclosed. The notification appliance may be a strobe notification appliance, such as an LED strobe notification appliance. The notification appliance may be wall-mounted or ceiling-mounted. Further, the notification appliance may include an optic that is configured to shape the light output from the notification appliance. For example, in a wall-mount, the optic may be mounted off-axis of a plane defined by a back plate of the notification appliance. Further, the notification appliance may be composed of a back plate, a driver board, and a front housing, with the front housing being attached to one or both of the back plate and the driver board. Moreover, the notification appliance may be used with an adapter bracket, which may be used to connect the notification appliance with one or more types of junction boxes. | 02-04-2016 |
20160071404 | MODULAR WIRELESS MASS EVACUATION NOTIFICATION SYSTEM - Monitoring and mass notification systems, such as fire alarm systems, for use in occupied structures, and more particularly to wireless monitoring and mass notification systems include wireless base units that can be modular in design. This allows horns, mini horns, strobes, and audio messaging modules (e.g., speakers) to be physically plugged into the wireless base unit creating a unit with the appearance of a single physical unit. Preferably standardized plugs are used. In some cases, visual and audio modules (i.e., notification devices) have their own battery pack or external power interface. Each wireless base unit can optionally function as a repeater if it has dual transceivers (master transceiver and slave transceiver). | 03-10-2016 |
20160117900 | METHODS FOR DETECTING FIRES IN BIOMASS STORAGE SYSTEMS - A method for detecting a fire event in a biomass storage system containing biomass is performed by continuously measuring the humidity in the biomass storage system; comparing the measured humidity to a pre-defined humidity and if the difference between the measured humidity and the pre-defined humidity exceeds a pre-determined amount, providing an alert to an operator. | 04-28-2016 |
20160125729 | Distributed Sensor Network - Distributed sensing is provided. A first node of a plurality of nodes receives a fire status message from a second node of the plurality of nodes. The fire status message indicates a determination by the second node that an environmental condition exceeds a predetermined threshold. Each node of the plurality of nodes is a computing device. The first node estimates an arrival time of a fire based, at least in part, on the fire status message and a geographic location of the second node. The arrival time is a time until the fire arrives at a predetermined geographic location. | 05-05-2016 |
20160189512 | Smoke Alarm Mounting and Dismounting System and Method - A method of mounting and dismounting a smoke alarm from a supporting element mounted to an overhead surface; said method including the steps of, inserting an elongate implement into an opening provided in a body of the smoke alarm, and applying a force via the elongate implement so as to detach the body of the smoke alarm from the supporting element, and wherein the elongate implement is applied by a user standing on a floor surface below the overhead surface. | 06-30-2016 |
340578000 | By radiant energy | 13 |
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 cathode in electrical isolation from the header, a conductive case including a window transparent to electromagnetic energy, the conductive case enclosing the anode and the cathode and hermetically sealed to the header and an insulative sleeve disposed between the anode and the case and between the cathode and the conductive case. | 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 device is used to monitor at least one fire parameter in the area surrounding the fire detector according to a scattered light method. The respective light entry and exit windows on the cover plate are connected to an optical fiber element in such a way that light from the light source of one sensor unit is guided to and captured by the light collector of the other sensor unit. | 10-16-2008 |
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, by a flame sensor. If flame instability is detected, appliance operation may be corrected or terminated. | 10-30-2008 |
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) is enclosed in an air-scaled mechanically-sealed protective casing and comprises at least one sensor (S | 12-18-2008 |
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 monitored. At each fire sensor, the fire absent or fire present state is detected A fire sensor emits an alert signal to a monitoring post if a fire is present in the vicinity of the sensor. The alert signal contains information for identifying and/or locating the sensor. The alert signal is transmitted from the monitoring post to a fire brigade by means of a long-range radiofrequency link. | 12-18-2008 |
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 input device, determine if an alarm condition exists using the security information, and transmit an alarm to the output based on the determination. The processor is programmed to detect an open circuit between the sensing device and the ONT, and to generate an alarm if an open circuit is detected. The processor is also programmed to receive information from a keypad located remotely from the ONT. The keypad is utilized to program the ONT from the remote location. | 07-09-2009 |
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 illumination background condition, a multi-wavelength video image fire detecting system is disclosed consisting of a multi-wavelength video image fire detector, which is comprised of a color and near IR dual-mode camera, a color and B/W dual-mode camera, an image capture module, a processor and controller, an I/O module, a housing and a visible light and near IR view window, an alarm and indicate equipment, a setting and debugging system, a communication equipment, an area alarm and monitor system, and a pan & title and control system. | 12-24-2009 |
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 the sensor enables communication of the detector with a remote device via a wireless receiver and a wireless transmitter. A light source associated with the housing may be positioned to illuminate an exit in response to a hazard detected by any of the aforementioned sensors. | 03-25-2010 |
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 voltage booster circuit to supply, with the timing at which the boosted voltage is obtained, the boosted voltage to the light emitting section, thereby intermittently driving light emission; a light receiving section that receives light from the light emitting section having been diffused by smoke; a conversion circuit that converts a received light signal from the light receiving section into received light data; a fire hazard detection section that detects a fire hazard based on the received light data from the conversion circuit; an alarm section that outputs an alarm based on a fire hazard detection signal from the fire hazard detection section; a reference voltage circuit that generates a reference voltage for the voltage booster circuit and the conversion circuit; and a clock circuit that outputs a clock signal for operating the voltage booster circuit, the light emission control section, and the conversion circuit. Furthermore, in this alarm unit, a packaged integrated circuit is provided with: a processor circuit that realizes functions of the light emission control section and the fire hazard detection section by executing a program; the voltage booster circuit; the conversion circuit; the reference voltage circuit; the clock circuit; and a control circuit of the respective circuit sections. | 07-29-2010 |
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 influences, allows UV and IR radiation to pass through to a sufficient degree, and reflects UV and IR radiation from the housing interior, on its inside. Monitoring of the contamination of the window, function monitoring of the sensors and of the signal processing electronics, as well as easy replaceability of the components in the fire alarm are provided. | 11-18-2010 |
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 temperature than at high temperature, the thermally-sensitive element disposed in series with the second resistor and in parallel with the first resistor. | 04-07-2011 |
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 other optical filter. The result is a system having operationally redundant sensors. In use, if a fire is detected by one of the redundant sensors without including the other redundant radiation sensor in the fire detection calculation, then a fire detection algorithm can switch to the other operationally redundant sensor to check for confirmation of a fire. Due to the spatial separation and if the object is small and close, a different result will be obtained with the redundant detector being used in the calculation compared to the primary detector that is associated with the redundant detector. | 01-05-2012 |
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. The dye produces visually discernable dark areas on the coated target(s). | 05-24-2012 |