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7619538 |
Programmable, directing evacuation systems: apparatus and method
This invention pertains to evacuation systems, more particularly, it pertains to single or networked guiding devices that utilizing pre-programming and/or virtual programming, sensing and detecting...
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7616126 |
Optical particle detectors
A particle sensor is provided that includes a light source, an optical transducer, and a controller, wherein the controller is in communication with the light source and the optical transducer. The...
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7602304 |
Multi-sensor device and methods for fire detection
Multiple parameter fire detection uses outputs from one or more radiant energy sensors in combination with outputs from smoke or thermal sensors to shorten response times to alarm while minimizing...
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7564365 |
Smoke detector and method of detecting smoke
A smoke detector that includes at least one image-forming reflective surface, at least one light source and at least one light sensor. In operation, at least one light source emits light from a...
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7551096 |
Multi-sensor device and methods for fire detection
Multiple parameter fire detection uses outputs from one or more radiant energy sensors in combination with outputs from smoke or thermal sensors to shorten response times to alarm while minimizing...
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7548157 |
Battery backed service indicator aids for field maintenance
A self-contained backup power source such as a battery is provided for components within an electrically powered device such as a storage controller, photocopier or the like, to maintain diagnostic...
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7495573 |
Camera vision fire detector and system
Wide area camera vision systems can respond to variations in light beams projected into a region being monitored. The variations are indicative of the presence of smoke in the region. In addition...
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7493816 |
Smoke detectors
An aspirated smoke detector includes a flow path and a generator of acoustic waves in the flow path. Airborne particulate matter in the flow path responds to the acoustic field by particle...
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7482940 |
Alarm for detecting radiation and pollutants
An alarm for detecting radiation and/or pollutants such as smoke, carbon monoxide or the like has a housing ( 500 ), an alarm circuit ( 400 ) including a detector (DET 1 ) for detecting said...
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7474227 |
Multiwavelength smoke detector using white light LED
A smoke detector includes a smoke detection chamber containing a white light LED and a light detector. The light detector detects light within at least two distinct optical wavelength bands, and...
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7474226 |
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...
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7463159 |
Fire detector
The fire detector comprises an insertable detector assembly which includes a sensor arrangement, an electronic evaluation system and a housing which surrounds the sensor arrangement and has...
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7369057 |
Power generator and power generator auxiliary monitoring
A generator monitoring system and method includes a plurality of sensors ( 12 ) disposed within a generator enclosure ( 18 ) to sense health conditions of a generator ( 10 ) housed within the...
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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...
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7324004 |
Cargo smoke detector and related method for reducing false detects
A method for reducing false detects may include emitting an infrared light beam from a primary emitter to a primary monitor detector, measuring a first voltage value using a primary receive...
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7312714 |
Ambient condition detector with time delayed function
An ambient condition detector includes a time delay function whereby a user initiates a functionality test of the detector and has time to move away from the vicinity of the detector before a...
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7295128 |
Smoke detection methods, devices, and systems
The present invention is directed to a system and method for accessing home monitoring devices remotely via a distributed wide-area network (WAN). More specifically, the present invention is...
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7262705 |
Recessed detector assembly for detecting and venting airborne substances
A recessed detector assembly having the capability to detect and evacuate air laden with airborne substances from within the assembly. The assembly includes a detector frame adapted to be flush...
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7250871 |
Particulate detector
An apparatus and method are provided for detecting presence in gas of transient particulate above its normal zero or acceptable level within a duct ( 4 ), said apparatus comprising at least one...
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7248173 |
Smoke detector
A dark chamber is adapted to accommodate smoke particles. A photo emitter and a photo detector are disposed in the dark chamber. In a first region, a region where light emitted from the photo...
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7233254 |
Lowerable smoke detector
A lowered smoke detector is disclosed. It comprises a sensor and a mounting system. The mounting system includes a frame, a securing device, a reel, a flexible member, a mounting adaptor, an...
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7209046 |
Method for the detection and signaling of dew films in smoke detectors
A method for the detection and signaling of smoke by means of an optical assembly in a detector casing, the optical assembly including at least one optical transmitter element and at least one...
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7205901 |
Removable battery and alarm system
The present invention relates to a removable battery system for a smoke detector having a low battery detection circuitry and an audible alarm. The system includes a pair of battery receivers each...
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7170417 |
Decorative cover for smoke detectors and like devices
A decorative cover for smoke detectors and like devices mounted on a wall or ceiling provides a cover member of a generally opaque material approximately the shape of the device it is covering and...
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7167099 |
Compact particle sensor
A compact particle sensor for detecting suspended particles includes a housing, a light source, a light receiver and a plurality of optical elements. The housing provides a test chamber and...
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7167098 |
Testing equipment for a fire alarm
The present invention relates to testing equipment 20 for a fire alarm 1. It includes a testing pole ( 21 ), a range spacer ( 23 ) connected to the testing pole ( 21 ), and a reflective means...
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7154402 |
Power strip with smoke detection auto-shutoff
The invention is a power strip with an internal smoke detection device, which cuts off AC electrical power to attached electrical devices if smoke is detected.
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7151460 |
Electronic device having a proximity detector
A smoke detection device for use in a portable device such as a mobile terminal. The smoke detection device comprises a light emitter and a light detector disposed on different locations on the...
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7091869 |
Optoacoustic measuring arrangement and use thereof
The measuring arrangement contains a measuring cell and a reference cell, respectively, and microphones assigned to these cells, to which microphones an electronic evaluation circuit is connected...
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7075445 |
Rapidly responding, false detection immune alarm signal producing smoke detector
A smoke detector of an obscuration type has an effective light propagation path of substantially greater length than the light propagation paths of conventional obscuration-type smoke detectors to...
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7053783 |
Pathogen detector system and method
A pathogen detector has a sample area for containing environmental air, a light source on one side of the sample area for directing a collimated beam of light through the sample air so that part of...
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7049824 |
Differential particulate detection system for electronic devices
A method, apparatus and program product for differential particle detection in electronic devices is provided. A first particulate sensor is positioned in proximity to an air intake of the...
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7038189 |
Optoelectronic dust sensor and air conditioning equipment in which such optoelectronic dust sensor is installed
At an optoelectronic dust sensor, opening(s) is/are formed at front panel(s) of main body housing(s), and passage hole(s) is/are formed at back panel(s) of main body housing(s). Provided between...
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7030766 |
Ambient condition detector with multi-function test
A device with a multi-function test feature for assessing or directing multiple sensor functions is provided for monitoring and interrogating air flow through Heating/Ventilation/Air-conditioning...
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7009521 |
Power supply and interconnect detector system
A contactless ambient condition detection system includes at least one base connectable to a power and signal transmitting cable and a compatible detector. The detector removably engages the base....
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6989756 |
Smoke detector maintenance indication method and apparatus
A method of displaying status information of a plurality of smoke detectors includes obtaining first data including a first measurement value representative of a maintenance condition of a first...
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6967582 |
Detector with ambient photon sensor and other sensors
A sensor of incident ambient photons is combined, in a detector with one or more sensors responsive to other types of ambient parameters such as gas, humidity, temperature or the like. Outputs from...
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6940402 |
Method and apparatus for detection of a location of an event
A method and apparatus for detecting the location of an event from amongst a plurality (A to P) of locations. Lines of communication (R 1 to R 4 , C 1 to C 4 ), commonly pipes of a smoke...
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6914535 |
Light scattering type smoke sensor
A light scattering type smoke sensor comprising a holder with openings embedded with light emitting part and light detecting part respectively, which do not protrude into the smoke detection...
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6914533 |
System and method for accessing residential monitoring devices
The present invention is directed to a system and method for accessing home monitoring devices remotely via a distributed wide-area network (WAN). More specifically, the present invention is...
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6888467 |
Gas detection instrument and method for its operation
A gas detection instrument comprises a combustible gas sensor and associated circuitry, which supplies power to the sensor and measures and displays resulting sensor response. The supplied power is...
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6844818 |
Smoke detection
A smoke detection system comprising video camera monitoring means, video frame comparison means, signal processing means, and alarm generating means dependant on an output from the signal...
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6828913 |
Scattered light smoke alarm
A dispersion light smoke detector has a structure for providing a definite measuring volume, the structure being formed as two light receivers or an imaging optical system for one light receiver.
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6819252 |
Carbon monoxide and smoke detection apparatus
A smoke sensor and a carbon monoxide sensor are integrated into a common detector housing. The smoke sensor is coupled to a smoke detector control integrated circuit which generates a binary output...
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6788211 |
Apparatus and method using smoke and/or gas sensing in cooking devices
A control device and method provides control of at least one operating feature of a cooking device in response to measured smoke and/or gas produced by item(s) being cooked. The device and method...
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6788208 |
Method for controlling stationary fire-extinguishing systems
A method and a fire-alarm system controls stationary fire-extinguishing systems. The fire-alarm devices of the fire-alarm system are equipped with one or more detectors. If at least one...
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6788197 |
Fire alarm
A fire alarm having an electronic evaluator, an optical module, a temperature sensor, and at least one combustion gas sensor, where the electronic evaluator diagnoses one of a plurality of fire...
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6778091 |
Smoke chamber
A smoke detecting chamber for use in a light-scattering type smoke detector is provided which includes a chamber cover that forms one side of the smoke detecting chamber. The chamber cover includes...
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6774802 |
Detection and air evacuation system
Described is a system for detecting toxic levels of a contaminate in a monitored area. The system controls an air evacuation device that operates in response to the detection of a predetermined...
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6774801 |
Clock and ambient air condition sensing apparatus
A clock and ambient air condition sensing apparatus includes an alarm and ambient air sensor positioned in a housing and operatively connected to a logic circuit. The logic circuit is capable of...
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