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President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 8077046 | False alarm resistant and fast responding fire detector A fire detector and method of using it generate a fire alarm through use of a smoke detector and a carbon monoxide detector once the smoke detector detects a threshold level of light obscuration for greater than a first pre-selected time period or a reduced threshol... | 12/13/2011 |
| 8049632 | 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 confi... | 11/01/2011 |
| 7876229 | Flare monitoring A computer assisted method identifies characteristics of a flare. A digital image of the flare is obtained, such as by a color digital video camera and a region of interest likely containing the flare is identified. Flare pixels within the region of interest are ide... | 01/25/2011 |
| 7843352 | 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 b... | 11/30/2010 |
| 7834771 | Fire detector using a laser range finder, an infrared camera and a charged coupled device camera 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 i... | 11/16/2010 |
| 7817048 | Fire extinguishing systems and methods A fire extinguishing system for suppressing fires on cook stoves, fryers or other heating or heated devices with fire suppressant dispensed through nozzles is powered by batteries which provide current for both a detection circuit including a pair of heat sensors an... | 10/19/2010 |
| 7800508 | Dynamic DC biasing and leakage compensation A system for adjusting a bias voltage of a flame sensing system. The system may use pulse width modulation to adjust the bias voltage. The system may have a flame sensing rod that conveys an electrical equivalent circuit of a flame presence to a detector via low pas... | 09/21/2010 |
| 7768410 | 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 ... | 08/03/2010 |
| 7764182 | Flame sensing system A low cost flame sensing system having at last one floating point. For instance, the system may have two grounds. There may be a flame sensing rod for detecting a flame which has a model circuit which appears upon the existence of the flame proximate to the sensing ... | 07/27/2010 |
| 7746236 | 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... | 06/29/2010 |
| 7626507 | Intelligent directional fire alarm system An intelligent directional fire alarm system is disclosed. The intelligent directional fire alarm system identifies a threat such as a fire, and the location within a building relative to the known exits for building occupants, and indicates the closest exits in eac... | 12/01/2009 |
| 7619534 | Method and apparatus for detection of hazardous or potentially hazardous conditions A fire alarm system includes a fire alarm control panel (FACP) and an addressable signaling line circuit (SLC) operably coupled to the FACP for communicating with addressable components, including a plurality of sensors. The sensors can include a plurality of atmosp... | 11/17/2009 |
| 7567182 | Acoustic fire sensing system The acoustic sound of water flowing to/from activated sprinkler heads is used to identify fire location in a region(s). Acoustic transducers, such as microphones, can be located in the vicinity of sprinkler heads. Active heads, spraying water, will produce sounds of... | 07/28/2009 |
| 7528732 | Fire alarm device and method A fire alarm device and method capable of informing people with visual and hearing difficulties of occurrence of fire. A fire detection means (1) detecting the occurrence of fire is connected to an emission control means (4). A smell emitting means ( | 05/05/2009 |
| 7417530 | Sleep safety alarm A blanket with integral vibrating mechanisms for awakening a sleeper during an emergency. A control box receives information and based on an array of user settings, the control box will either actuate the vibrating mechanisms or produce a sound capable of being hear... | 08/26/2008 |
| 7408477 | Fire alarm pull station with audio deterrent A fire alarm pull station includes a cover which must be opened to reach a fire alarm actuating handle, and an audio pull station alarm triggered by opening the cover. Once triggered, the pull station alarm remains on until reset, which reset requires using a tool i... | 08/05/2008 |
| 7368725 | Optical radiation sensor system having a radiation window with a non-circular opening There is described an optical radiation sensor device for detecting radiation in a radiation field. The device comprises a sensor element capable of detecting and responding to incident radiation from the radiation field and a radiation window interposed between the... | 05/06/2008 |
| 7365648 | Fire alarm A fire alarm for an installation via a housing that is flush with the ceiling, having at least one light source arranged in the housing and at least one light receiver arranged in the housing, as well as a shutter disk, which seals the housing. To prevent the spread... | 04/29/2008 |
| 7356580 | Plug and play sensor integration for a process module A process chamber with a computer system that controls the process chamber is connected to one or more sensors, which are used to monitor the process in the process chamber. The sensors are connected to the computer system in a client/server relationship, in a way t... | 04/08/2008 |
| 7350327 | Mounting devices for exit signs and other fixtures Canopy mounting devices that cover junction boxes of various configurations and provide a pleasing, finished appearance to a resulting installation are disclosed. Certain embodiments of a canopy mounting device include a universal mounting plate integrally formed wi... | 04/01/2008 |
| 7337156 | Method for detecting and combating forest and surface fires A method for the detection and combating of forest and surface fires includes the steps of observing and detecting fires using an infrared camera on board an observation aircraft; georeferencing image obtained by the infrared camera pixel-wise using location data of... | 02/26/2008 |
| 7327269 | 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 t... | 02/05/2008 |
| 7327247 | Fire detection system and method using multiple sensors Outputs from a plurality of different ambient condition sensors are cross correlated so as to adjust a threshold value for a different, primary, sensor. Cross-correlation processing can be carried out locally in a detector or remotely. To minimize false alarming, th... | 02/05/2008 |
| 7323970 | Method and system for remote interaction with a vehicle via wireless communication A telemetry system coupled to a vehicle can communicate with a remote site using the overhead control channels of a wireless network, such as a cellular mobile radiotelephone network. The telemetry system can monitor or control aspects of the vehicle's operations ba... | 01/29/2008 |
| 7321301 | Wireless children's safety light in a security system A safety light is activated by a wireless signal from a control panel in a home security system is response to detection of a fire by the system. The safety light alerts rescuers of rooms in a home in which children may be located. The light may be window, door or w... | 01/22/2008 |
| 7289032 | Intelligent flame scanner Techniques for determining a characteristic of a flame are provided by the present invention. Provided are methods as well as devices. A flame is monitored across a contiguous spectral range to detect light emitted by the monitored flame. The contiguous spectral ran... | 10/30/2007 |
| 7286704 | Imaging fire detector An imaging fire detector is used to detect a fire from a recorded image sequence. Either a video camera or an infrared camera is used as an imaging device. Characterizing parameters of a fire are either analyzed individually or in combination. In order to detect cha... | 10/23/2007 |
| 7260446 | Temperature protection method for machine tool A method of protecting a rotating device, loaded by temperature of a machine tool with one temperature sensor on that device and a temperature bloc, comprising the steps of inputting specific parameters in the temperature bloc, estimating a value for the device temp... | 08/21/2007 |
| 7250855 | False alarm mitigation using a sensor network Methods and apparatus, including computer program products, for processing, at a sensor node within a sensor network, a set of sensor readings to determine whether an event has occurred, the set of sensor readings including one or more sensor readings for correspond... | 07/31/2007 |
| 7242310 | Control techniques for shut-off sensors in fuel-fired heating appliances In a flammable vapor sensor-based shut-off system of a fuel-fired water heater the sensor resistance output signal degradation caused by aging of the sensor is automatically compensated for using an operational timer having an output signal indicative of the total l... | 07/10/2007 |
| 7231808 | Method and apparatus for measuring oxygen content A method and apparatus for measuring the oxygen content in a closed target space, particularly for monitoring inertization levels in an inert gas device for fire prevention and/or fire extinguishing. Toward the aim of proposing a method for measuring the oxygen cont... | 06/19/2007 |
| 7227463 | Alarm systems, alarm system operating methods, and alarm extension devices An alarm extension device includes a retainer configured to receive a personal paging device, a vibration sensor in operative association with the retainer, an auxiliary alarm generator, and a link between the vibration sensor and the auxiliary alarm generator. The ... | 06/05/2007 |
| 7224284 | Smoke detector calibration A method for calibrating a smoke detector includes adjusting the sensitivity of the smoke detector to get a consistent predetermined response over the expected operating range. The sensitivity is generally consistent for all detectors and an independent offset value... | 05/29/2007 |
| 7221260 | Multi-sensor fire detectors with audio sensors and systems thereof An ambient condition detector incorporates an audio transducer for discrimination between alarm and non-alarm conditions. The transducer can provide occupancy information. In addition, a monitoring system can graphically present information as to the location of ind... | 05/22/2007 |
| 7209729 | Cradle, security system, telephone, and monitoring method A cradle includes: a telephone supporting section supporting a mobile telephone; a connecting section electrically connecting to the mobile telephone; a sensor communications section receiving a report from a sensor sensing a state of a monitored area; and a transmi... | 04/24/2007 |
| 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 |
| 7199724 | Method and apparatus to aide in emergency egress A method and apparatus are provided to aide in emergency egress of a structure. More particularly, egress indicators are co-located with hazard sensors. During detection of a hazard condition, locations of sensors detecting the hazard are identified and a pathway di... | 04/03/2007 |
| 7183558 | Distributed UV sensor system and method A radiometer that incorporates multiple UV bandwidth sensors, defined in nanometers, and includes connectors for inserting a cable that is used to connect to another sensor, or to a data collection module (DCM) in a multidrop, or daisy-chain arrangement. Each sensor... | 02/27/2007 |
| 7178955 | Safety headlight A safety headlight with a battery power monitor is provided. The headlight includes one primary light bulb and at least one LED bulb. When the battery power begins to fade so that the primary bulb is in danger of going out, a sensor in the headlight switches power t... | 02/20/2007 |
| 7180406 | Onboard fire alert system The method is for warning for alcohol fueled fires in vehicles such as racing vehicles. The method comprises providing a vehicle (44) with an engine (46) fueled by alcohol. Sensors (20, 22, 24) are mounted adjacent to the engine. The sensors sen... | 02/20/2007 |
