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7587926 |
Method and apparatus for testing detectors
An apparatus ( 10 ) for testing detectors has a cup or chamber ( 30 ) supported within a mid-cap ( 40 ) by a support ring ( 50 ). An adjustable cap ( 70 ) attaches at one end to a mid-cap ( 40 )...
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7469204 |
Method and apparatus for calculating voltage drop
A method for performing voltage drop calculations in an alarm circuit comprises creating a circuit to be controlled. A first device is selected from a list of devices to add to the circuit. An...
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7432827 |
Device for activating inductive loop sensor of a traffic light control system
A system and method for activating vehicle sensors which are based on inductive loops. A voltage controlled oscillator is scanned throughout the required frequency range while a balanced mixer,...
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7414533 |
System for placing radio frequency identification (RFID) antennas, tags and interrogators
A system and method for optimally placing radio frequency identification (RFID) antennas. The system varies the placement of RFID tag and interrogator antennas with respect to each other and a...
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7383019 |
Field data collection and relay station
A field data collection and relay station is equipped to receive sensor data from locations in a region. The station has directional antennas that are focused to transmit and receive energy in and...
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7327781 |
Universal intelligent modem
In one general aspect, data transfer between the modem and a processor connected to the modem may be improved using a variable speed buffer. The variable speed buffer may include one or more...
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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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7250847 |
Portable surface member for conducting exercises of individuals
The concept herein is focused on a portable structure, generally in the form of a portable mat or other similar member, that can be moved or transported from place to place to be used in a...
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7242291 |
Arc fault circuit interrupter test circuit and test board
A tester for an arc fault circuit interrupter that can selectively simulate and apply electrical arc faults and nuisance loads to at least one device under test (DUT). The tester includes a power...
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7225661 |
Gas supply adapter
A single-piece adapter ( 10 ) is disclosed for supplying gas to a gas detector ( 32 ) that contains at least one gas sensor ( 34 ) and that has a gas inlet ( 30 ) for allowing gas at the inlet to...
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7180411 |
Methods and apparatus for generating a data structure indicative of an alarm system circuit
A user of a computer aided design (CAD) system graphically places fire alarm appliances, such as smoke detectors and sirens, in a drawing area. After elements are placed and physical paths are...
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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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7158024 |
Packet intrusion detection rule simplification apparatus and method, and packet intrusion detection apparatus and method using simplified intrusion detection rule
A packet intrusion detection rule simplification apparatus and method and an intrusion detection apparatus and method are provided. Test conditions of at least one intrusion detection rules are...
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7151442 |
System, apparatus, and method for testing identification tags
An apparatus includes at least one tag holder capable of receiving and holding a plurality of tags. The apparatus also includes at least one antenna capable of receiving wireless signals from the...
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7149623 |
Vehicle tracker including input/output features and related methods
A tracking system includes a vehicle tracking unit for a vehicle of a type including an alarm indicator, and a monitoring station receiving the alarm indication alert from the vehicle tracking...
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7132948 |
System for optimally placing radio frequency identification (RFID) antennas, tags, and interrogators
A system and method for optimally placing radio frequency identification (RFID) antennas. The system varies the placement of RFID tag and interrogator antennas with respect to each other and a...
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7079021 |
System to manually initiate an emergency shutdown test and collect diagnostic data in a process control environment
An emergency shutdown test system, wherein the emergency shutdown test system includes an emergency shutdown device controller and sensors to provide data to the controller, the controller having a...
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7053766 |
Self-testing system and method
Newly installed electrical units emit, for a brief install interval, an “installed” output either audibly or visually, or both in response to an install mode input signal. After the install...
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6956491 |
Monitoring bearing performance
Techniques for qualifying and monitoring bearing performance and condition in a rotary servo systems (e.g., galvanometer scanner) are disclosed. A position error signal is analyzed for signal...
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6914532 |
Method and apparatus for alarm verification in a ventilation system
Method and apparatus for testing the operation of an alarm for a ventilated enclosure, such as a fume hood or bio-safety cabinet. Flow of gas being exhausted from the enclosure may be adjusted to a...
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6812834 |
Reference sample for generating smoky atmosphere
A reference sample for testing fire detectors and a method of testing utilizing the reference samples. The reference sample comprises a fused mixture of pellets of the plastics usually found in...
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6812827 |
System and method for testing and maintaining a predetermined physical bit rate on a line connection
A system and method for testing and maintaining a predetermined bit rate on a line connection between a transmission assembly and at least one terminal, where initiation of a drop below the...
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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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6753773 |
Vehicle communication device having switchable operation mode and radio wave intensity checking device
A vehicle communication device is installed in a vehicle and used for an ETC or other DSRC system. The vehicle communication device can be switched between a normal mode and a radio wave emitting...
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6720873 |
Method and apparatus for testing magnetic proximity detectors on ski lifts
A device for testing a cable deroped magnetic proximity detector positioned adjacent a cable sheave or sheave assembly on a cable operated ski lift. A sleeve of non-ferromagnetic material is...
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6642849 |
Hush disable feature for photoelectric smoke alarm
A hush mode disabling device for a smoke alarm having a self-test function, a hush mode that engages upon activation of the self-test function to silence or desensitize the smoke alarm for a...
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6640608 |
Ducted smoke or fire detector testing tool
An apparatus for testing a smoking or fire detector includes an open-topped housing for receiving a detector under test. A stream of fluid for activating the detector is generated in a portion of...
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6593854 |
System of monitoring bearing performance
A system for qualifying and monitoring bearing performance and condition in a rotary servo system. A position error signal is analyzed for signal anomalies that can signify bearing damage. A DC...
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6567772 |
System for dynamic analysis of hydraulic performance in a CAD fire sprinkler system model
A processing system for dynamic analysis of hydraulic performance in a computerized fire sprinkler system model is provided to aid sprinkler designers in auto-peaking the system when at least one...
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6525657 |
Apparatus and method for production testing of the RF performance of wireless communications devices
A radio frequency (RF) multi-testing apparatus and method for rapid (e.g. production line) testing of a wireless communications device for operational adherence of the device to a pre-determined...
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6462655 |
Zone check test system
A fluid flow detector test system includes a flow conduit and a pump for providing a test fluid flow at the detector. A test unit includes a programmed processor coupled to the pump by a drive...
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6318168 |
Thermal dispersion probe with microcomputer controller
Thermal dispersion probes used as flowrate sensors in process control of a medium heated by a heater. The device includes a reference temperature sensor for producing an electrical signal...
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6288638 |
Heat detector having an increased accuracy alarm temperature threshold and improved low temperature testing capabilities
A heat detector that includes a temperature sensing and testing circuit that provides an increased accuracy temperature sensing range and a push-to-test circuit that is electronically functional at...
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6282940 |
Apparatus for testing carbon monoxide alarms
Apparatus for testing the operation of a carbon monoxide alarm of the type having a casing and a CO sensor extending therefrom, includes a housing sized and configured to receive the casing and to...
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6271751 |
Magnetic lock and status detection system and method therefor
An electromagnetic lock and status detection system and method therefor includes an armature, an electromagnet, and a status detection unit. The electromagnet is magnetically attracted to the...
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6198399 |
Smoke detector test device and method for manufacture
A smoke detector test device comprising a stamped plate. Combustible elements are positioned and retained on the stamped plate which, when ignited smolder to provide smoke of sufficient volume to...
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6166660 |
Driveway alarm system
A driveway alarm system for disposing along a driveway of a home or business for warning an occupant of the premise about an object, including a vehicle, on the driveway, or for warning a driver of...
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5977872 |
Building emergency simulator
There is provided a building emergency simulator which can graphically and operationally reproduce various building fire alarm/voice communication/smoke control and other systems and provide means...
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5959188 |
Method and apparatus for testing of carbon monoxide detectors
A method for operationally testing a wall mounted electronic carbon monoxide detector by temporarily hanging a test enclosure over the installed carbon monoxide detector so as to define a closed...
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5936532 |
Smoke and carbon monoxide detector with clock
A smoke and carbon monoxide detector for mounting upon a wall, having a housing having a front face. A clock having clock hands and clock indicia is present on the front face. The detector...
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5898368 |
Test indicator control circuit for security alarm device
An intrusion detector for monitoring a space has a sensor for generating detection signals in response to detections of events occurring in the space and an indicator for receiving the detection...
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5874895 |
Method and apparatus for testing operation of a sensor controlled device
The present invention is directed to a method and apparatus for testing the operation of a sensor controlled monitor device by using a test device connected in parallel to the monitor device. When...
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5838231 |
Device for monitoring open terrain and for protecting objects
A monitoring device for detecting acoustic vibrations in monitored objects has a plurality of several structure-borne sound sensors which are connected to a remote central electronic analyzing...
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5815066 |
Fire alarm safety silencing system
A new Fire Alarm Safety Silencing System for providing a fire alarm which allows a user to silence during false alarms for a finite period of time wherein the fire alarm rearms itself. The...
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5796262 |
Method and apparatus for diagnosing bearing insulation impedance of a rotating electrical apparatus
A system diagnoses the operability of a rotating electrical apparatus such as a reactor coolant pump (RCP) motor. The RCP motor includes a rotatable shaft, a stator, a bearing assembly and a...
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5726637 |
Alarm and safeguard system
A set of first and second detecting units detects an emergency. First and second pseudo-emergency generating units generate a pseudo-emergency for the first and second detecting units. A driving...
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5724255 |
Portable emergency action system for chemical releases
The present invention provides a calculated protective action zone, such as a safety zone which can be used for evacuation purposes, using simplified input methods and systems and simplified...
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5721529 |
Individual smoke detector with stored range of acceptable sensitivity
A smoke detector is provided with testing apparatus for determining if its sensitivity is within a predetermined acceptable range. The testing apparatus stores in the detector a range representing...
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5686885 |
Sensor test method and apparatus
In a security system having a remote monitoring station, a sensor is tested when the security system is in a normal operating mode. The sensor is tested by actuation of a button on the sensor....
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5672807 |
Pendulum detector testing device
A detector testing device which provides consistent, cost-effective, repeatable results. The testing device is primarily constructed of PVC plastic and other non-metallic materials. Sensitivity of...
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