Patent International Class: G01R 19/15
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Method for ensuring and monitoring electrolyzer safety and performances
Inventor: Tremblay, et al. | Patent Number: 8152987
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Integrated hybrid current sensor
Inventor: Strzalkowski | Patent Number: 7605580
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Device for monitoring the flow of a substantially direct current in a load and method for the implementation of this device
Inventor: Choisnet | Patent Number: 6633156
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Current indicator for fault assessments of loop circuit integrity while providing circuit isolation
Inventor: Gardner | Patent Number: 6424136
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Test device for electrical voltages with integrated illumination unit
Inventor: Beha | Patent Number: 6377054
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Running indicator for integrated circuit package
Inventor: Wang | Patent Number: 6307479
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Current detector having magnetic core for concentrating a magnetic flux near a hall-effect sensor, and power switch apparatus incorporating same
Inventor: Baba, et al. | Patent Number: 6252389
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Electrical circuit tracing apparatus using modulated tracing signal
Inventor: Steber, et al. | Patent Number: 6163144
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Current sensing method and apparatus
Inventor: Gluszek | Patent Number: 6040689
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Switching device internal diode detection circuit and method of operating the same
Inventor: Barnett, et al. | Patent Number: 6020735
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Power supply apparatus with circuit load sensor
Inventor: Matlo | Patent Number: 5962932
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Current flow monitor for heating cables
Inventor: Maniero, et al. | Patent Number: 5920191
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Test-point mounted fault indicator having immunity to fault currents in adjacent conductors
Inventor: Schweitzer, Jr. | Patent Number: 5889399
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Telephone system loop current detector
Inventor: Moore, III | Patent Number: 5768342
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Current status circuit for a variable frequency motor
Inventor: Cota, et al. | Patent Number: 5705989
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Load detection apparatus
Inventor: Hwang | Patent Number: 5625305
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Sense circuit, memory circuit, negative-resistance circuit, schmitt trigger, load circuit, level shifter, and amplifier
Inventor: Tanoi | Patent Number: 5519348
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Sense circuit, memory circuit, negative-resistance circuit, schmitt trigger, load circuit, level shifter, and amplifier
Inventor: Tanoi | Patent Number: 5514986
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Load circuit tolerating large current and voltage swings
Inventor: Tanoi | Patent Number: 5510746
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Sense circuit
Inventor: Tanoi | Patent Number: 5504442
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Level shifter circuit
Inventor: Tanoi | Patent Number: 5498991
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Inverting amplifier having negative-resistance circuit
Inventor: Tanoi | Patent Number: 5489874
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Method and apparatus for judging active/dead status of communication cable
Inventor: Hamade, et al. | Patent Number: 5488304
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Live wire detection adapter with grounding capability
Inventor: Woodward, et al. | Patent Number: 5447450
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Vibration based deenergized cable detector and method
Inventor: Zabar, et al. | Patent Number: 5397983
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System for rating electric power transmission lines and equipment
Inventor: Davis | Patent Number: 5341088
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Portable electrical line tester using audible tones to indicate voltage
Inventor: Schuyler | Patent Number: 5319306
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AC/DC current detecting method
Inventor: Katsuyama, et al. | Patent Number: 5223789
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System for rating electric power transmission lines and equipment
Inventor: Davis | Patent Number: 5140257
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Surface/subsurface corrosion detector with optical paths alterable by magnetically sensitive transducers
Inventor: Rempt | Patent Number: 5132620
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Current sensor and method for determining the current flow in conductors to be evaluated
Inventor: Wolf | Patent Number: 5105146
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Distribution cutout condition sensor
Inventor: Bishop, et al. | Patent Number: 5093657
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Current conduction probe circuit
Inventor: Thabit | Patent Number: 5081412
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Current-sensing circuit for an IC power semiconductor device
Inventor: Korteling | Patent Number: 5081379
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Transistor provided with a current detecting function
Inventor: Mori, et al. | Patent Number: 5061863
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Apparatus for measuring the quiescent current of an integrated monolithic digital circuit
Inventor: Verhelst, et al. | Patent Number: 5057774
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Current indicating device
Inventor: Bubash | Patent Number: 5015944
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Current indicating device
Inventor: Bubash | Patent Number: 5015944
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Faulted current indicator with inrush restraint
Inventor: Yeh | Patent Number: 4984124
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Fan operating status sensing circuit
Inventor: Toth | Patent Number: 4977375
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Apparatus and process for detecting direct current magnetic flux deflections in an electrical transformer employing Fourier analysis
Inventor: Kouan, et al. | Patent Number: 4904945
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Measuring circuit of the DC component of the current flowing through the primary winding of the output transformer of an inverter
Inventor: Moreau, et al. | Patent Number: 4878026
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Superconducting current detecting circuit employing DC flux parametron circuit
Inventor: Harada, et al. | Patent Number: 4866373
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System for rating electric power transmission lines and equipment
Inventor: Davis | Patent Number: 4806855
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Current draw and power consumption display circuit
Inventor: Mayer, et al. | Patent Number: 4806854
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Conductor tracer transmitter with non-reversing magnetic field tracing signal
Inventor: Pecukonis | Patent Number: 4775832
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Conductor tracer transmitter with non-reversing magnetic field tracing signal
Inventor: Pecukonis | Patent Number: 4775832
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CMOS current sense amplifier
Inventor: Rapp | Patent Number: 4758749
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Load detecting device for generator
Inventor: Okamoto | Patent Number: 4749944
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Circuit for detecting the current flow of a triac
Inventor: Nutz, et al. | Patent Number: 4737671
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Method for making battery tester for two sizes of batteries
Inventor: Parker | Patent Number: 4737020
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System for rating electric power transmission lines and equipment
Inventor: Davis | Patent Number: 4728887
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Flexible resistive heat battery tester and holder
Inventor: Parker | Patent Number: 4726661
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High voltage electronic component test apparatus
Inventor: Knowles, et al. | Patent Number: 4710707
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Battery tester including flexible substrate and polyacetilynic material
Inventor: Parker | Patent Number: 4702564
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Battery tester including textile substrate
Inventor: Parker | Patent Number: 4702563
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Electrostatic field indicator light for electrostatic nozzles
Inventor: Mommsen | Patent Number: 4682735
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Current measuring device in an electrical distribution switchboard or enclosure
Inventor: Boichot-Castagne | Patent Number: 4675598
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Optical indicator device
Inventor: Damstra | Patent Number: 4672367
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Molded clamp-type ammeter probe
Inventor: Boston, et al. | Patent Number: 4656418
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Temperature stabilized Faraday rotator current sensor by thermal mechanical means
Inventor: Chen, et al. | Patent Number: 4612500
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Vital interface system for railway signalling
Inventor: Hoelscher | Patent Number: 4611291
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Status-indicating current interrupter
Inventor: Clark | Patent Number: 4604613
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Current monitoring apparatus
Inventor: Keel | Patent Number: 4602216
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Vertical MOSFET with current monitor utilizing common drain current mirror
Inventor: Jaycox, et al. | Patent Number: 4599554
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Overcurrent display device
Inventor: Aida, et al. | Patent Number: 4593276
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Overcurrent display device
Inventor: Aida, et al. | Patent Number: 4593276
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Measurement of the current flow in an electric power transmission line by detection of infrared radiation therefrom
Inventor: Elabd | Patent Number: 4584523
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Circuit for monitoring the operating condition of an electric load
Inventor: Andrews, et al. | Patent Number: 4583086
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Method and arrangement for enabling the detection of the location of a horizontally arranged gas conveying passage positioned underground
Inventor: Nakamura, et al. | Patent Number: 4573016
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AC Current detection circuit for a rotor driving supply source of a rotating anode X-ray tube
Inventor: Tanaka | Patent Number: 4572973
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Device and method for sensing electric current in a conductor
Inventor: Comeau, et al. | Patent Number: 4558276
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Measuring probes
Inventor: Jackson | Patent Number: 4518913
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Current detecting apparatus
Inventor: Ishigami, et al. | Patent Number: 4513339
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Telephone subscriber line looping circuit
Inventor: Gerritsen, et al. | Patent Number: 4476352
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Device for measuring the current which flows in a conductor
Inventor: Souques, et al. | Patent Number: 4473810
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Method and apparatus for positioning a boat by monitoring the magnetic field created by current circulating in an electric circuit
Inventor: Posseme | Patent Number: 4470013
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Charge indicating system
Inventor: Morishita, et al. | Patent Number: 4470004
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Fault indicator having a remote test point at which fault occurrence is indicated by change in magnetic state
Inventor: Schweitzer, Jr. | Patent Number: 4458198
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Current sensing relay
Inventor: Judy | Patent Number: 4456943
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D.C. Current detector
Inventor: Iwasaki | Patent Number: 4454553
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Fault indicator with combined trip and reset winding
Inventor: Schweitzer, Jr. | Patent Number: 4438403
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Detection apparatus utilizing a hall effect device
Inventor: Sabon, et al. | Patent Number: 4417205
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Detection apparatus utilizing a hall effect device
Inventor: Sabon, et al. | Patent Number: 4417205
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Apparatus for monitoring and detecting operational defects in the state of vehicle lamps
Inventor: Delapierre | Patent Number: 4385283
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Remote current sensor
Inventor: Humphrey | Patent Number: 4376247
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Fault indicator with flux concentrating means
Inventor: Schweitzer, Jr. | Patent Number: 4375617
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Circuit arrangement for monitoring a current-consuming load
Inventor: Speidel, et al. | Patent Number: 4354155
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Circuit arrangement for monitoring a current-consuming load
Inventor: Speidel, et al. | Patent Number: 4354155
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Detector circuit for thyristors
Inventor: Morehouse, et al. | Patent Number: 4325099
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Indicating device for use in airfield lighting plants technical field
Inventor: Jacobsen | Patent Number: 4323841
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Fault indicator operable from a remote excitation source through a uniformly distributed impedance cable
Inventor: Schweitzer | Patent Number: 4288743
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Determination of electric current flow patterns
Inventor: Cammarano, et al. | Patent Number: 4272722
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Inductive pickup clip
Inventor: Shumway, et al. | Patent Number: 4234863
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Fault indicator
Inventor: Schweitzer | Patent Number: 4234847
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Fault indicator and means for resetting same
Inventor: Schweitzer, Jr. | Patent Number: 4165528
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Test circuit for indication of deviation of source voltages from their set points
Inventor: Cibulka, et al. | Patent Number: 4139788
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Lightning current responsive alarm
Inventor: Ishikawa, et al. | Patent Number: 4112418
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Detector of backfeed electrical currents
Inventor: Scaturro | Patent Number: 4096539
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Fault indicator and means for resetting the same
Inventor: Schweitzer, Jr. | Patent Number: 4086529