Patents
Patents for G01R 1 - Details of instruments or arrangements of the types covered by groups  or (27,269)
04/1981
04/15/1981EP0026824A1 Adaptes for a device for electronically testing printed circuit boards
04/07/1981US4259965 Skin electrode
04/07/1981CA1098984A1 Low-profile test clip adapter
03/1981
03/31/1981US4259635 Electrical continuity and voltage testing device having a pair of probes spaced for insertion into an electrical socket
03/24/1981US4258317 Combination analog-digital indicator
03/24/1981US4258313 Socket test device for testing three way lamp sockets
03/19/1981WO1981000792A1 Modular connector and protector
03/17/1981CA1097598A1 Pen recorder driving mechanism
02/1981
02/24/1981US4253057 Compensation indicator for attenuation probe
02/17/1981US4251772 Probe head for an automatic semiconductive wafer prober
02/10/1981US4250448 Voltmeter apparatus for cascaded transformers
01/1981
01/20/1981CA1094161A1 Shrouded jaws for hook-on type instrument
01/13/1981US4245189 Probe assembly for measuring conductivity of plated through holes
01/07/1981EP0021697A2 Electrode probe
01/07/1981EP0021181A1 Measuring instrument with a magnetic rotor
12/1980
12/30/1980US4242188 Method for controlling plasma chemical reactions
12/16/1980US4240059 Current divider for a current sensing transducer
12/09/1980US4238730 Magnetic brake-damper of electric measuring instrument
12/09/1980US4238728 Voltage tester housing with prod retaining channels
12/09/1980CA1091297A2 Compact moving coil meter
12/02/1980US4237418 Electrical current indicating meter
11/1980
11/27/1980WO1980002599A1 Universal test fixture employing interchangeable wired personalizers
11/25/1980US4236112 Power measuring apparatus
11/25/1980US4235347 Air-tight molded resin enclosure with a safety membrane for electric devices
11/18/1980US4234863 Inductive pickup clip
11/13/1980WO1980002492A1 Pulse motor driving apparatus for automatic testing system
11/13/1980WO1980002461A1 Automatic testing system for printed circuit boards
11/11/1980US4232928 Apparatus employing flexible diaphragm for effecting substantially uniform force, individual couplings with multiple electrical contacts or the like
10/1980
10/29/1980EP0017876A1 Multiple purpose electrical measuring instrument
10/28/1980US4230985 Fixturing system
10/28/1980US4230984 Method and apparatus for driving an air core gage
10/28/1980US4229874 Method of mounting a pivot insert
10/07/1980US4227149 Sensing probe for determining location of conductive features
10/01/1980EP0016210A1 Portable and foldable universal measuring instrument.
10/01/1980EP0016087A1 Probe and interface device for integrated circuit wafers
09/1980
09/30/1980US4225819 Circuit board contact contamination probe
09/30/1980CA1086828A1 Probe assembly for an electric meter
09/23/1980US4224529 Automatic polarity changing device
09/17/1980EP0015579A1 Test station
09/16/1980US4223266 Adjustable spring regulator for setting indicating instrument pointer
09/16/1980CA1085926A1 Circuit board testing apparatus
08/1980
08/26/1980US4219771 Four-quadrant, multiprobe-edge sensor for semiconductor wafer probing
08/19/1980US4218651 Apparatus for detecting longitudinal and transverse imperfections in elongated ferrous workpieces
08/12/1980US4217194 Instrument for polarographic potentiometric, thermal and like measurements and a method of making the same
08/12/1980CA1083700A1 Programmable electrical apparatus containing a battery
07/1980
07/22/1980US4214201 Integrated circuit testing probe
07/15/1980US4213088 Voltage measuring circuit
07/15/1980US4213086 Selector device for the determination of the type of electroconductivity in semiconductor wafers
07/08/1980US4211972 Self contained filar suspended meter rotor
07/08/1980US4211911 Sandy fraction obtained as waste from combustion of brown coal as filler, lime as binder, cement
07/01/1980US4210863 Extendible probe for use with test instruments
07/01/1980US4210862 Test device for indicating an electric voltage and/or the polarity thereof, and the passage of current through an electric conductor
07/01/1980US4210383 Circuit test clamp
06/1980
06/24/1980US4209745 Interchangeable test head for loaded test member
06/24/1980US4209742 Modular probe system
06/24/1980US4209154 Device for securing an apparatus in a wall
06/11/1980EP0012065A1 Radiation detector for a tomographic apparatus
06/03/1980US4206406 Means for adjusting the zero point setting of a meter
05/1980
05/13/1980US4202351 Identification means for electrocardiographic monitoring instruments or the like
05/13/1980CA1077571A1 Sealing device for electrical meter
05/13/1980CA1077570A1 Test pin
05/06/1980US4201374 Substrate carrier
05/06/1980US4201148 Pointer and scale indicating assembly
04/1980
04/29/1980US4200351 Straight through electrical spring probe
04/29/1980CA1076648A1 Apparatus for measuring electric current
04/22/1980US4198863 Electromagnetic torsional stiffness element
03/1980
03/25/1980US4195259 Multiprobe test system and method of using same
03/20/1980WO1980000495A1 Portable and foldable universal measuring instrument
03/05/1980EP0008404A2 Photometer with interchangeable calibration scales
02/1980
02/26/1980US4190311 Low-profile test clip adapter
01/1980
01/29/1980US4186339 Method and apparatus for measuring current, especially useful in multi-ampere systems
01/29/1980US4186332 Limited rotation moving iron motor with novel velocity sensing and feedback
01/29/1980US4185722 Magnetic clutch and brake assembly
01/24/1980WO1980000101A1 Probe and interface device for integrated circuit wafers
01/23/1980EP0007088A1 Device for operating contacts
01/15/1980US4183609 Insulator board for spring probe fixtures
01/15/1980CA1070006A2 Electrometer apparatus for reproduction machines
12/1979
12/25/1979US4180774 Regenerative method and apparatus to control an elastic reset torque in movable apparatus
12/18/1979US4179652 Analyzing electrical circuit boards
12/18/1979CA1068390A1 Instrument assembly
12/12/1979EP0005727A1 Sensing probe for determining location of conductive spots
12/11/1979US4178544 Electrical measurement circuitry for low level AC signals
12/11/1979US4178543 Analyzing electrical circuit boards
12/04/1979US4177497 Instrument cluster assembly
12/04/1979US4177425 Multiple contact electrical test probe assembly
11/1979
11/28/1979EP0005557A2 Regulation system with novel velocity sensing and feedback for a limited rotation moving iron motor
11/27/1979US4176315 Miniature electrical voltage and continuity tester with circuit compartment and test lead compartment casing
11/27/1979US4175813 Tamper-proof adaptor for an electric meter
11/13/1979US4174500 Scale plate for measuring instruments
11/06/1979CA1065966A1 Temperature dependent voltage reference circuit
10/1979
10/16/1979US4171512 Circuit for preventing breakdown of a load resulting from wrong connection of a power source
10/03/1979EP0004510A1 Measuring device for physiological signals to be placed on or inside a part of the body
09/1979
09/25/1979US4168870 Cabinet for electronic apparatus
09/25/1979CA1063253A1 Integrated circuit substitution device
09/05/1979EP0003933A1 Apparatus for establishing temporary test-contact connexions to electric circuits and its use.
09/05/1979EP0003776A1 Needle-shaped centering device for a magnetically supported rotating shaft of a measuring device, in particular of an electricity meter
08/1979
08/14/1979US4164704 Plural probe circuit card fixture using a vacuum collapsed membrane to hold the card against the probes
08/14/1979US4164145 Self-powered electrical meter for display of a liquid-level or the like measurement
07/1979
07/17/1979US4161692 Probe device for integrated circuit wafers
07/10/1979US4161012 High voltage protection apparatus