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7633298 |
Electrical continuity tester
A continuity tester for a lamp, coaxial, plug connector has a receptacle connector with first and second coaxial, annular receptacle contacts at a same axial spacing apart as power and ground...
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7432722 |
Flexible continuity and circuit tester
A flexible circuit and continuity testing device may include a flexible printed circuit substrate. A battery having a positive and negative terminal may be attached to the substrate. An...
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7385519 |
Apparatus and method for operability and live-dead-live testing
An operability testing apparatus used in conjunction with an electrical testing apparatus to perform live-dead-live tests consists of: a power source; a voltage source coupled to the power source...
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7096155 |
Method, system and apparatus for providing real-time led status of embedded controllers to system management software
Embedded controller(s) in an information handling system have real-time status and activities represented by indicators, such as light emitting diodes (LEDs), associated with the embedded...
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7064554 |
Fluorescent light bulb test apparatus and method of use
An apparatus for testing a fluorescent light bulb is disclosed. The apparatus includes a circular housing including a pair of contact receptacles operable to receive two conductive elements of a...
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7030624 |
Electrical circuit tester
An electrical circuit testing device is provided, comprising a case, a digital voltage level testing circuit with a display means, a switch to initiate measurement using the device, a non-shorting...
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6982558 |
Electric circuit test device
The present invention is directed to an electric circuit test device for testing an electric circuit. The test device is insertable into a receptacle. The receptacle includes electrical terminals...
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6979787 |
Article for de-energizing a branch electrical circuit, and related processes
A device for de-energizing an energized branch electrical circuit is described, as well as related processes. The device includes a circuit breaker, which itself includes a breaker switch, an input...
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6967445 |
Circuit continuity and function monitor
A circuit to monitor electrical continuity through a light bulb when the light bulb is switched off, and to monitor proper functioning of the light bulb when the bulb is switched on. The circuit...
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6940416 |
Low voltage testing and illuminating device
This invention relates to a limited range low voltage testing, regulating, and indicating device comprising a detector and low voltage measurer of magnitude in a switch-regulated power supply...
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6888341 |
Dual voltage circuit tester
A handheld dual voltage circuit tester, method and electronic circuit that quickly allows a technician to determine whether an automotive electrical system runs on a 12-14 volt circuit or 36-42...
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6797924 |
Cordless soldering iron and electrical continuity testing device
The present invention provides a soldering iron with a graphite tip having two separate halves that are electrically isolated from one another. The tip halves are each electrically connected to the...
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6731217 |
Electrical circuit tester
An electrical circuit tester for allowing a user to efficiently test electrical fixtures and switches. The electrical circuit tester includes a housing that has a plurality of prongs that extend...
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6700386 |
Power distribution apparatus for a motor vehicle
If there is an error in the feeding system and the error condition allows the motor vehicle to run, the power to electric load systems having a low priority is cut off. If the error condition does...
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6693438 |
Self-powered apparatus and method for optically detecting arcing faults in electric power systems in the presence of other light sources
Arcing faults in an electric power system are detected by sensors powered by the light generated by the arcing even in the presence of background light. The sensors have one or more first...
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6603302 |
Circuit testers
A circuit tester ( 1 ) for testing circuit integrity in a series-wired string of Christmas fairy lights powered by domestic mains electricity. The tester comprises or includes a housing; a probe...
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6593758 |
Built-in test system for aircraft indication switches
A built-in test system for aircraft indication switches comprises a plurality of aircraft indication switches and a first resistor adding network having input resistors individually connected to...
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6587050 |
Oscillator activated continuity testing switch
A self timing test circuit switch powered by the same conductor as used to carry data may be used in vehicles where it is desirable to test and confirm the continuity of a critical circuit by...
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6456091 |
Power line conditioner with voltage and current amplitude tracking
An apparatus and a method using a power line conditioner having a conventional grounded plug disposed at one end of a short three-wire cord and a housing disposed at the opposite end for providing...
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6448779 |
Wiring test assembly
A wiring test assembly for validating and troubleshooting electrical problems with vehicle wiring assemblies for trailers. The wiring test assembly includes a housing with a bottom portion hingedly...
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6433530 |
Hand held circuit and polarity tester
A circuit testing device includes a handle with a hollow interior, a conductive probe projecting from one end and a removable cap with a wire and clamp projecting from the opposite end A...
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6377054 |
Test device for electrical voltages with integrated illumination unit
A test device is described for testing an electromagnetic quantity, such as a voltage or a magnetic field. The test device includes a housing, a sensor arranged in the housing and sensing the...
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6356084 |
Audio testing system
A cable tester is provided having a receive unit comprising a cylindrical housing with open ends, a connector which is attached to one open end, and a plurality of light-emitting diodes (LED's)...
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6323657 |
Conductor tester
A conductor tester including two contour-identical parts of a main unit and a remote unit is used to test and indicate present condition of conductors. Both the main and the remote units are formed...
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6323656 |
Wiring harness diagnostic system
A circuit includes a plurality of inexpensive resistors connected at one end to the open collector outputs of an output array of NPN output transistors which are connected to a wiring harness or...
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6297646 |
Electrical tester for small motor vehicles
A tester includes a housing containing a passive test circuit including a plurality of LEDs respectively connected to terminals of a multi-terminal connector jack on the housing for connecting the...
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6281686 |
Nonintrusive power and continuity testing tools
Low-cost, miniature, noninvasive power and continuity testing tools for diagnosing and troubleshooting electrical and electronic systems. The tools may be used to diagnose the condition of...
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6262654 |
Audible alarm-wire identifier
Device for identifying multiple two-conductor alarm wires originating from a common location but terminating at individual remote locations. This device is utilized at the common location by...
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6259243 |
Method for electromagnetically shielding inductive voltage detectors
The method of this invention provides a means for altering commonly available inductive voltage detector instruments into dual sensitivity test instruments. By shielding the sensor probe with a...
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6255829 |
Apparatus for function testing of sensors in high voltage devices
The device may be used to, for example, function test sensors in high voltage plants and signal boxes. The device makes it possible to function test sensors in high voltage plants, independent of...
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6219039 |
Compact PC video subsystem tester
Method and apparatus for testing the video subsystem of a PC in a manufacturing environment. Hsync and Vsync signals from a VGA connector of the PC are input to first and second trigger inputs,...
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6176358 |
Cable rewinding device with detector
A cable rewinding device comprises a rewinding box, a detector provided on a side of the rewinding box received in the rewinding box in a universal joint manner in a stored position having a ball...
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6172508 |
System for testing tractor and trailer light systems
A new and improved system for testing tractor and trailer light systems interconnected by a cable wherein the trailer has a gladhand. The system includes a housing having a front control panel, a...
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6151560 |
Open circuit failure monitoring apparatus for controlled electrical resistance heaters
An open circuit failure monitoring apparatus for controlled electrical resistance heaters is disclosed. The heater failure monitoring apparatus allows controlled electrical resistance heaters to be...
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6147617 |
Apparatus and method for detecting faults in outdoor display
The present invention is to provide an apparatus for detecting errors due to cutoff of a unit pixel and short between the unit pixel and the ground voltage level in a lighting-off state, and also a...
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6100679 |
Voltage indicating instrument
A tool for indicating the presence of potentially dangerous voltages to the user includes circuitry for detecting the presence of an AC voltage on a blade or other operative portion of the tool,...
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6075448 |
Apparatus and method for testing an electrical circuit
This invention solves the problem of differentiating between a short-circuit and a low resistance value. A multi-tester impresses voltage across an LED circuit in inverse correspondence with the...
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6075369 |
Defibrillator system condition indicator with an electrode interface
A defibrillator and electrode system that gives the user a visible and/or audible indication of the condition of the electrodes and other parts of the defibrillator system prior to deployment of...
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6057689 |
Apparatus and method for leak detection in a fluid-filled balloon useful to treat body tissue
An apparatus for detecting leaks in a fluid-filled device used to treat a patient's tissue includes an catheter having an expandable device defining a fluid reservoir about the distal end of the...
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6028510 |
Verification and monitoring system particularly suited for taxi cabs
A verification and monitoring system for signal and status indicators and voice and metering features which is particularly suited for a taxi cab is disclosed. The operational status of the...
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6020822 |
Circuit tester
A circuit tester which allows the testing of electrical outlets, telephone circuits and light bulb sockets. The circuit tester is cylindrical with two circuit probes. The first probe is a...
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6016059 |
Defibrillator system condition indicator
A defibrillator and electrode system that gives the user a visible and/or audible indication of the condition of the electrodes and other parts of the defibrillator system prior to deployment of...
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5936407 |
Intravehicular auto harness integrity tester with switch
An intravehicular auto harness tester with switch consisting of a first housing unit mountable within or upon the dashboard of a motor vehicle containing three small light emitting diodes with...
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5920191 |
Current flow monitor for heating cables
An apparatus for monitoring the current flow through a variable load such as various lengths of heater cables. The apparatus can detect a wide range of currents so that the size of the load can vary.
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5886642 |
Tank barge interface
A hand-held interface couples fill level detection switch terminals on a tank barge with current source terminals of a dockside facility. The interface includes a dockside connector adapted to be...
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5877618 |
Hand held non-contact voltage tester
A non-contact voltage tester has a self-test feature so that when a switch clip of the tester is actuated, light and sound indicator devices are energized to give a single blink and beep,...
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5847557 |
Wire pair identification method
An apparatus and method of identifying wires or circuits uses plugs with light-emitting diodes ("LED's") attached across the plug contacts corresponding to the wiring circuit. All of the jacks in a...
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5789911 |
Polarity testing probe and LED cartridge assembly
A polarity testing probe has a prod, a handle, an end cap, a wire, a cavity, first and second testing contacts, and a LED cartridge assembly. The prod extends from the handle. The end cap encloses...
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5781015 |
Extension cord with integral monitoring system
An extension cord with integral monitoring system including a male connector having a pair of strip contacts. Such contacts include a neutral strip contact and a line strip contact. Further...
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5760592 |
Method and device for inspecting connectors
A connector housing (22) before insertion of a terminal lug thereinto is set in an inspection chamber (7) on a connector inspection device (A), so that a movable pin (9) of an inspection pin (8) is...
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