| Patents for G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (152,264) |
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| 11/09/1976 | US3991364 Autocorrelation method for detecting insulation defects in cable |
| 11/09/1976 | US3991363 Method and apparatus for detecting faults in buried insulated conductors |
| 11/09/1976 | US3991362 Technique for monitoring the operational integrity of remote analog circuits |
| 11/09/1976 | US3991305 Electronic calculator or digital processor chip with multiple code combinations of display and keyboard scan outputs |
| 11/09/1976 | US3991302 Method for detecting and isolating faults in digital and analog circuits with multiple infrared scanning under conditions of different stimuli |
| 11/02/1976 | US3990003 Pulsed loop antenna-conduit electromagnetic radiator test technique for electromagnetic shielding flaw detection in buried conduits and shielded conductors |
| 11/02/1976 | US3990002 Method and apparatus for testing television yokes and flyback windings |
| 10/26/1976 | US3988672 Parametric tester for semiconductor devices |
| 10/26/1976 | US3988670 Automatic testing of digital logic systems |
| 10/26/1976 | US3988666 Multiplex cable insulation fault locator system with electrical conducting guides mounted on a rotating disc |
| 10/26/1976 | US3988664 System for predicting or detecting a fault in a solenoid utilization system |
| 10/26/1976 | US3988603 Micro-programming fault analyzer |
| 10/19/1976 | US3987416 Electronic calculator with display and keyboard scanning signal generator in data memory |
| 10/19/1976 | US3987364 Pocket test set with moulded casing for testing communication cables |
| 10/19/1976 | US3987353 Control systems for battery chargers |
| 10/19/1976 | US3987286 Time split array logic element and method of operation |
| 10/12/1976 | US3986116 Transient source and direction of propagation detector |
| 10/12/1976 | US3986115 Transient direction detector |
| 10/12/1976 | US3986107 Resistance indicating electrical testing equipment for testing insulation under high voltage conditions |
| 10/12/1976 | US3986106 Portable set for automatic sequential test of multiple wire pairs |
| 10/05/1976 | US3984765 Power outlet circuit tester with ground fault testing capability |
| 10/05/1976 | US3984762 Method for determining battery state of charge by measuring A.C. electrical phase angle change |
| 10/05/1976 | US3984620 Integrated circuit chip test and assembly package |
| 10/05/1976 | US3984611 Method of and apparatus for monitoring for incipient electrode failure in the Joule effect heating of heat softenable material |
| 09/28/1976 | US3983554 Electric power distribution system including a Master Annunicator and Central Control Unit |
| 09/28/1976 | US3983479 Electrical defect monitor structure |
| 09/28/1976 | US3983476 Defibrillator testing device |
| 09/28/1976 | US3983377 Method and apparatus for detecting a fault location at an electrical conductor |
| 09/21/1976 | US3982180 Apparatus for testing multiconductor cables for continuity, correct connections, and the absence of short circuits between conductors |
| 09/14/1976 | US3980950 Method of determining the displacement angle of an electric motor and means for effecting same |
| 09/14/1976 | US3980840 Conductor identification arrangement for a cable restoration system |
| 09/14/1976 | US3979897 Method for locating conductor breaks during the two stage twisting of a communications cable |
| 09/07/1976 | US3979741 Power loss alarm system |
| 09/07/1976 | US3979681 System and method for decoding reset signals of a timepiece for providing internal control |
| 09/07/1976 | US3979672 Transistor testing circuit |
| 09/07/1976 | US3979671 Test fixture for use in a high speed electronic semiconductor chip test system |
| 09/07/1976 | US3979657 Battery monitor with automatic scale and recycle prevents |
| 08/31/1976 | US3978465 Line isolation monitor |
| 08/31/1976 | US3978405 Damage thresholds of p-n junction devices by a current pulse method |
| 08/31/1976 | US3978400 Ground fault detector with a nonlinear sensing means |
| 08/31/1976 | US3978374 Method and apparatus for the detection of short circuits |
| 08/24/1976 | US3976987 Dual channel dynamic line isolation monitor |
| 08/24/1976 | US3976940 Testing circuit |
| 08/24/1976 | US3976939 Conductor identification in multiconductor cables |
| 08/24/1976 | US3976934 Method and apparatus for the continuous, contactless testing of a long conductor which consists at least partially of superconductive material |
| 08/24/1976 | US3976933 Method and circuit for in-service testing of an electro-magnetically actuated component |
| 08/24/1976 | US3976868 Voltage synthesization |
| 08/24/1976 | US3976864 Apparatus and method for testing digital circuits |
| 08/24/1976 | US3976383 Visual method of locating faults in printed circuit boards |
| 08/24/1976 | US3976377 Method of obtaining the distribution profile of electrically active ions implanted in a semiconductor |
| 08/17/1976 | US3975683 In-circuit diode tester |
| 08/17/1976 | US3975680 Non-contact coupling plate for circuit board tester |
| 08/17/1976 | US3975677 Method and apparatus for testing an inductive device for the presence of a voltage suppressor |
| 08/10/1976 | US3974443 Conductive line width and resistivity measuring system |
| 08/10/1976 | US3974441 Battery checker |
| 08/03/1976 | US3973198 In-circuit semiconductor tester |
| 08/03/1976 | US3973193 Electric light tester and unit operating device |
| 08/03/1976 | US3973187 Sensing capacitance and thickness of insulated cable to provide outputs related to weigh and percent voids |
| 08/03/1976 | US3973185 Circuit for monitoring the inductance of an inductive load to indicate occurrence of a fault |
| 08/03/1976 | US3973184 Thermocouple circuit detector for simultaneous analog trend recording and analog to digital conversion |
| 08/03/1976 | US3973090 Telephone number assignment record verification apparatus and method |
| 08/03/1976 | US3972463 Wire placement fixture |
| 08/03/1976 | US3972225 Sampling system for power generators |
| 07/27/1976 | US3971989 Method and system for absolute measurement of noise power at all radio frequencies |
| 07/27/1976 | US3971980 Battery testing apparatus |
| 07/27/1976 | US3971618 Holding device for measuring the capacity of small electrical components |
| 07/20/1976 | US3971007 Line isolation monitor |
| 07/20/1976 | US3970934 Printed circuit board testing means |
| 07/20/1976 | US3970933 Device for checking a D.C. source voltage relative to a predetermined value |
| 07/20/1976 | US3970930 Current meter |
| 07/20/1976 | US3970929 Test apparatus for use with a heating system |
| 07/20/1976 | US3970924 Apparatus for detecting faults in magnet wire insulation without thermally damaging the insulation and which does not respond to impedance indications above a predetermined threshold value |
| 07/20/1976 | US3970873 Bistable logic circuit with in-service test capability |
| 07/13/1976 | US3969697 Voltage drop warning apparatus with negative-resistance device |
| 07/13/1976 | US3969670 Electron beam testing of integrated circuits |
| 07/13/1976 | US3969667 Device for determining the state of charge in batteries |
| 07/06/1976 | US3968426 Method of A.C. insulation testing utilizing a variable inductive reactor in parallel with a test specimen |
| 07/06/1976 | US3967358 Control system for battery plate stacking apparatus |
| 06/29/1976 | US3967200 Speed detector for use with miniature DC motor |
| 06/29/1976 | US3967199 Method and apparatus for testing electric motors |
| 06/29/1976 | US3967196 Method and apparatus for measuring the void content of a solid dielectric |
| 06/29/1976 | US3967195 Circuit tester for three wire electrical outlets |
| 06/29/1976 | US3967192 Indicator lamp test circuit utilizing bidirectional thyristor switching |
| 06/29/1976 | US3967191 Method and apparatus for non-destructively measuring internal film resistance in a fluorescent lamp |
| 06/22/1976 | US3965469 Annunciator structure and method |
| 06/22/1976 | US3965468 Logic pulser |
| 06/22/1976 | US3965420 Apparatus for non-destructively testing the voltage characteristics of a transistor |
| 06/15/1976 | US3964020 High voltage system with self-test circuitry |
| 06/15/1976 | US3963985 Probe device having probe heads and method of adjusting distances between probe heads |
| 06/15/1976 | US3963981 Leakage and continuity tester |
| 06/15/1976 | US3963315 Semiconductor chip carrier and testing fixture |
| 06/08/1976 | US3962630 Electrical continuity and voltage testing device |
| 06/08/1976 | US3962629 Device for measurement of parameters of compound electric circuit elements |
| 06/08/1976 | US3962577 Electro-optic system with expanded power range |
| 06/01/1976 | US3961254 Testing embedded arrays |
| 06/01/1976 | US3961252 Testing embedded arrays |
| 06/01/1976 | US3961251 Testing embedded arrays |
| 06/01/1976 | US3961250 Logic network test system with simulator oriented fault test generator |
| 06/01/1976 | US3961246 Capacitance method of monitoring insulation dryness of an electrical induction apparatus |
| 06/01/1976 | US3961242 Emission testing circuit for color cathode ray tubes |