using electromagnetic relays

Industry

CPC
G01R19/16509

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Parent Industries

GPHYSICS G01Measuring instruments G01RMEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof

Current Industry

G01R19/16509using electromagnetic relays

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Device for detecting electrical currents on or in the vicinity of e...
- Patent number 11,454,653
- Issue date Sep 27, 2022
- DEHN SE + CO KG
- Peter Zahlmann
- G01 - MEASURING TESTING
Information Patent Grant
Device for detecting electrical currents on or near electrical cond...
- Patent number 11,162,984
- Issue date Nov 2, 2021
- DEHN SE + CO KG
- Peter Zahlmann
- G01 - MEASURING TESTING
Information Patent Grant
Electronic switching and protection circuit with test mode function
- Patent number 10,965,120
- Issue date Mar 30, 2021
- Infineon Technologies AG
- Robert Illing
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power control apparatus, control method for power control apparatus...
- Patent number 10,749,348
- Issue date Aug 18, 2020
- Kyocera Corporation
- Yuichi Moriyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transformation relay and battery voltage measurement system using same
- Patent number 10,365,333
- Issue date Jul 30, 2019
- LG Chem, Ltd.
- Hyeon Jin Song
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Automatic door switch inspection
- Patent number 10,233,053
- Issue date Mar 19, 2019
- Otis Elevator Company
- Atsushi Yamada
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Protection device
- Patent number 9,520,839
- Issue date Dec 13, 2016
- ONKYO & PIONEER TECHNOLOGY CORPORATION
- Koji Takahama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Targeted timed reset fault indicator
- Patent number 6,963,197
- Issue date Nov 8, 2005
- E.O. Schweitzer Manufacturing Co., LLC
- Laurence Virgil Feight
- G01 - MEASURING TESTING
Information Patent Grant
Fault indicator providing light indication on fault detection
- Patent number 6,433,698
- Issue date Aug 13, 2002
- E.O. Schweitzer Mfg. Co.
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Fault indicator providing contact closure and light indication on f...
- Patent number 6,016,105
- Issue date Jan 18, 2000
- E. O. Schweitzer Manufacturing Co., Inc.
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Fault indicator for use with load-break connector
- Patent number 5,821,869
- Issue date Oct 13, 1998
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Releasable sensor for conductor fault detection including a rigid t...
- Patent number 5,397,982
- Issue date Mar 14, 1995
- Cooper Industries, Inc.
- Theodore Van Lankvelt
- G01 - MEASURING TESTING
Information Patent Grant
Weld current sensor
- Patent number 5,221,894
- Issue date Jun 22, 1993
- Miller Electric Manufacturing Company
- Warren E. Herwig
- G01 - MEASURING TESTING
Information Patent Grant
Fault indicator having improved trip inhibit circuit
- Patent number 4,794,332
- Issue date Dec 27, 1988
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Fault indicator having trip inhibit circuit
- Patent number 4,686,518
- Issue date Aug 11, 1987
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Cable mounted magnetic core assembly
- Patent number 4,456,873
- Issue date Jun 26, 1984
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Test circuit for electrical continuity of a load circuit
- Patent number 4,447,806
- Issue date May 8, 1984
- Kabelwerke Reinshagen GmbH
- Manfred Gundel
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Fault indicator having increased sensitivity to fault currents
- Patent number 4,424,512
- Issue date Jan 3, 1984
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Electromagnetic device utilizing a pair of magnetically activated e...
- Patent number 4,322,708
- Issue date Mar 30, 1982
- GTE Automatic Electric Labs Inc.
- Kenneth H. Oehrig
- G01 - MEASURING TESTING
Information Patent Grant
Adjustable flux generator a magnetically activated electronic switch
- Patent number 4,322,709
- Issue date Mar 30, 1982
- GTE Automatic Electric Labs Inc.
- David L. Vonder
- G01 - MEASURING TESTING
Information Patent Grant
Combined fault and voltage indicator
- Patent number 4,251,770
- Issue date Feb 17, 1981
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Fault indicator
- Patent number 4,234,847
- Issue date Nov 18, 1980
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Diagnostic system employing a magnetic field responsive apparatus
- Patent number 4,115,764
- Issue date Sep 19, 1978
- Nippon Soken, Inc.
- Hiroaki Yamaguchi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Fault indicator including a reed relay responsive to above normal c...
- Patent number 4,101,826
- Issue date Jul 18, 1978
- Hendrik Horsitmann
- G01 - MEASURING TESTING
Information Patent Grant
Differential current detector
- Patent number 4,101,829
- Issue date Jul 18, 1978
- GTE International, Inc.
- Robert J. Gomperts
- G01 - MEASURING TESTING
Information Patent Grant
Wall thickness gauge and method utilizing a reed switch and magnet...
- Patent number 4,096,438
- Issue date Jun 20, 1978
- Frederick H. Humphrey
- G01 - MEASURING TESTING
Information Patent Grant
Temperature-sensing circuit
- Patent number 4,092,586
- Issue date May 30, 1978
- General Electric Company
- Leonard R. Dinkler
- G01 - MEASURING TESTING
Information Patent Grant
Protection circuits
- Patent number 4,064,546
- Issue date Dec 20, 1977
- Societe Chimique des Charbonnages
- Thadee Domanski
- G01 - MEASURING TESTING
Information Patent Grant
System for disabling the reset circuit of fault indicating means
- Patent number 4,034,360
- Issue date Jul 5, 1977
- Edmund O. Schweitzer
- G01 - MEASURING TESTING
Information Patent Grant
Means for indicating abnormal high current flow in a high voltage e...
- Patent number 3,991,366
- Issue date Nov 9, 1976
- Edmund O. Schweitzer
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
FENCE TESTER
- Publication number 20240118312
- Publication date Apr 11, 2024
- Forcefield Active Technology Limited
- Aidan MURPHY
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
DEVICE FOR DETECTING ELECTRICAL CURRENTS ON OR IN THE VICINITY OF E...
- Publication number 20210025927
- Publication date Jan 28, 2021
- DEHN SE + CO KG
- Peter Zahlmann
- G01 - MEASURING TESTING
Information Patent Application
DEVICE FOR DETECTING ELECTRICAL CURRENTS ON OR NEAR ELECTRICAL COND...
- Publication number 20200182915
- Publication date Jun 11, 2020
- DEHN SE + CO KG
- Peter Zahlmann
- G01 - MEASURING TESTING
Information Patent Application
POWER CONTROL APPARATUS, CONTROL METHOD FOR POWER CONTROL APPARATUS...
- Publication number 20180309299
- Publication date Oct 25, 2018
- KYOCERA CORPORATION
- Yuichi MORIYAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
AUTOMATIC DOOR SWITCH INSPECTION
- Publication number 20180208432
- Publication date Jul 26, 2018
- Otis Elevator Company
- Atsushi Yamada
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Electronic Switching and Protection Circuit with Test Mode Function
- Publication number 20170294773
- Publication date Oct 12, 2017
- INFINEON TECHNOLOGIES AG
- Robert Illing
- G01 - MEASURING TESTING
Information Patent Application
Wetting Current Diagnostics
- Publication number 20160238658
- Publication date Aug 18, 2016
- FREESCALE SEMICONDUCTOR, INC.
- William E. Edwards
- G01 - MEASURING TESTING
Information Patent Application
PROTECTION DEVICE
- Publication number 20160191000
- Publication date Jun 30, 2016
- Onkyo & Pioneer Technology Corporation
- Koji TAKAHAMA
- G01 - MEASURING TESTING
Information Patent Application
Dc Current Sensor
- Publication number 20080054881
- Publication date Mar 6, 2008
- Hyun-Wook Kim
- G01 - MEASURING TESTING

using electromagnetic relays

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Device for detecting electrical currents on or in the vicinity of e...

Device for detecting electrical currents on or near electrical cond...

Electronic switching and protection circuit with test mode function

Power control apparatus, control method for power control apparatus...

Transformation relay and battery voltage measurement system using same

Automatic door switch inspection

Protection device

Targeted timed reset fault indicator

Fault indicator providing light indication on fault detection

Fault indicator providing contact closure and light indication on f...

Fault indicator for use with load-break connector

Releasable sensor for conductor fault detection including a rigid t...

Weld current sensor

Fault indicator having improved trip inhibit circuit

Fault indicator having trip inhibit circuit

Cable mounted magnetic core assembly

Test circuit for electrical continuity of a load circuit

Fault indicator having increased sensitivity to fault currents

Electromagnetic device utilizing a pair of magnetically activated e...

Adjustable flux generator a magnetically activated electronic switch

Combined fault and voltage indicator

Fault indicator

Diagnostic system employing a magnetic field responsive apparatus

Fault indicator including a reed relay responsive to above normal c...

Differential current detector

Wall thickness gauge and method utilizing a reed switch and magnet...

Temperature-sensing circuit

Protection circuits

System for disabling the reset circuit of fault indicating means

Means for indicating abnormal high current flow in a high voltage e...

Patents Applicationslast 30 patents

FENCE TESTER

DEVICE FOR DETECTING ELECTRICAL CURRENTS ON OR IN THE VICINITY OF E...

DEVICE FOR DETECTING ELECTRICAL CURRENTS ON OR NEAR ELECTRICAL COND...

POWER CONTROL APPARATUS, CONTROL METHOD FOR POWER CONTROL APPARATUS...

AUTOMATIC DOOR SWITCH INSPECTION

Electronic Switching and Protection Circuit with Test Mode Function

Wetting Current Diagnostics

PROTECTION DEVICE

Dc Current Sensor