| Patents for H01H 47 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current (7,312) |
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| 10/14/2004 | US20040201945 Solenoid control using voltage control of freewheel current decay |
| 10/14/2004 | US20040201943 Operation circuit and power switching device employing the operation circuit |
| 10/14/2004 | DE10020074B4 Modulares Sicherheitsschaltgeräte-System The modular safety switching device system |
| 10/13/2004 | EP1466340A1 Control system for electrical switchgear |
| 10/13/2004 | EP1466336A1 Method for determining wear of a switchgear contacts |
| 10/13/2004 | CN2648757Y Dispersion light-dependent control road lamp |
| 10/13/2004 | CN2648580Y Intelligent contactless composite switch |
| 10/13/2004 | CN1171266C Power equipment containing monostable state type relay for monitoring preparment electric quantity |
| 10/12/2004 | US6803559 Optically controlled MEM switches |
| 10/07/2004 | US20040196610 Demagnetizing circuit |
| 10/06/2004 | CN1535017A Control method of rail traffic infrared video frequency transmission system |
| 10/06/2004 | CN1170294C Electromagnetic control equipment for power supply circuit with current supply kept by eletromagnet |
| 09/29/2004 | EP1462768A2 Bridge circuit for interrogation of the status of a switch |
| 09/29/2004 | CN1533505A Method and apparatus for controlling magnetically actuated power switching device |
| 09/29/2004 | CN1532865A Operation circuit and electric power switch device using it |
| 09/29/2004 | CN1169172C Quick-reaction mechanism switching point |
| 09/28/2004 | US6798633 Circuit arrangement for operation of a relay |
| 09/23/2004 | US20040183634 Electromagnetic relay |
| 09/23/2004 | US20040183572 Apparatus for sensing the presence of an inductive load driven by a pulse width modulated signal |
| 09/22/2004 | EP1460440A2 Apparatus for sensing the presence of an inductive load driven by a pulse width modulated signal |
| 09/22/2004 | EP1259970B1 Secure circuit subassembly, secure control subassembly and a subassembly system |
| 09/22/2004 | CN2643548Y Controller for contraction of escape corridor |
| 09/22/2004 | CN1531350A Degussing circuit of cathode-ray tube |
| 09/21/2004 | US6794908 Radiation-hard circuit |
| 09/16/2004 | US20040179321 Degaussing circuit for cathode ray tube |
| 09/15/2004 | CN2641805Y Power cut off delay converter |
| 09/15/2004 | CN1167198C Electronic drive contrl mechanism |
| 09/09/2004 | US20040174074 Safety switching apparatus for safely disconnecting an electrical load |
| 09/09/2004 | US20040174073 Self-powered trainable switching network |
| 09/08/2004 | CN2640094Y 三相操作箱 Three-phase operation box |
| 09/02/2004 | DE19960399B4 Elektromechanisches Schaltgerät Electromechanical switching device |
| 09/01/2004 | EP1453072A1 Method of supervising an electrical contact |
| 09/01/2004 | CN2638310Y Multifunctional protector for beam-pumping unit |
| 09/01/2004 | CN2638224Y AC contact protector |
| 08/26/2004 | WO2004073151A1 Switch mode power converter |
| 08/26/2004 | CA2516258A1 Switch mode power converter |
| 08/25/2004 | CN2636401Y Energy saving contactor having change over switch |
| 08/24/2004 | US6781810 Reduced tensioning time for electronically controlled switch contactors |
| 08/24/2004 | US6781490 Electromagnetic relay |
| 08/19/2004 | US20040160725 Inductive load powering arrangement |
| 08/19/2004 | US20040160131 Safety switching module and method for testing the switching-off ability of a switching element in a safety switching module |
| 08/18/2004 | EP1447830A1 Switching device for coding of different states |
| 08/18/2004 | CN2634728Y 智能家用开关 Smart home switch |
| 08/18/2004 | CN2634636Y DC operated three phase AC contactor control module |
| 08/18/2004 | CN2634635Y DC operated three phase AC contactor intelligent control module |
| 08/18/2004 | CN2634625Y Electric switch with extension interface |
| 08/18/2004 | CN1521790A Multifunctional contactor with a control module |
| 08/18/2004 | CN1162878C Method and apparatus for controlling electromagnetic valve in industrial vehicle |
| 08/17/2004 | US6778080 Modular safety switching device system |
| 08/12/2004 | US20040155638 Switch mode power converter |
| 08/12/2004 | US20040154563 Power supply method for electrical equipment |
| 08/12/2004 | DE10022722B4 Sicherheitsschaltgerät zum sicheren Ein- und Ausschalten eines elektrischen Verbrauchers Safety relay for secure switching on and off of an electrical load |
| 08/11/2004 | EP1444782A2 Device for controlling an electrical load and control unit |
| 08/11/2004 | EP1444755A1 Illuminating apparatus comprising a device for protection against electric discharges and method for protection against electric discharges in lighted lamps |
| 08/11/2004 | CN2632839Y Electric saving relay driven by high-low level control pulse current |
| 08/11/2004 | CN2632838Y Apparatus for eliminating DC voltage drop on electromagnetic valve circuit |
| 08/11/2004 | CN1162057C 电子部件 Electronic components |
| 08/10/2004 | US6775114 Electronic drive control apparatus |
| 08/05/2004 | DE10011211B4 Sicherheitsschaltgerät und Sicherheitsschaltgeräte-System Safety relay and safety switching device system |
| 08/04/2004 | CN2631070Y Digital control socket for electric appliance |
| 08/03/2004 | US6771154 Electromagnetic relay |
| 07/28/2004 | CN2629202Y Electronic AC contactor |
| 07/22/2004 | US20040140873 Electromagnetic relay |
| 07/22/2004 | DE10261451A1 Anordnung aus einer Sicherheits-Schaltvorrichtung und einer Vorrichtung zum selbsttätigen Prüfen der Funktionsfähigkeit der Sicherheits-Schaltvorrichtung Assembly of a safety switching device and a device for automatically checking the operability of the safety switching device |
| 07/22/2004 | DE10155926B4 Leuchteinheit mit einer Sicherungsvorrichtung gegen Stromschlag sowie Verfahren zur Sicherung vor Stromschlägen bei eingeschalteten Lampen Light unit with a safety device to prevent electric shock and methods for protection against electric shock when switched on lamps |
| 07/21/2004 | EP1290704B1 Method for operating an electromagnetic switching device and electromagnetic switching device |
| 07/21/2004 | CN2627737Y Death-proof device of microcomputer wired meter reading system |
| 07/15/2004 | WO2004059677A1 Assembly consisting of a fail-safe switching device and a device for automatically testing the functional ability of the fail-safe switching device |
| 07/15/2004 | WO2004027828A9 Amperage control for valves |
| 07/15/2004 | US20040136137 Degaussing coil holder |
| 07/15/2004 | DE10257341A1 Modul zur Zeit- und/oder Leistungssteuerung eines elektrischen Verbrauchers Module for time and / or power control of an electrical load |
| 07/14/2004 | EP1058934B1 Method of detecting manual trips in an intelligent electronic device |
| 07/08/2004 | WO2004057719A1 Switching circuit, switching method, protective device and battery pack |
| 07/08/2004 | US20040130845 Amperage control for valves |
| 07/06/2004 | US6759762 Device for controlling power distribution to subsystems |
| 07/01/2004 | WO2004021382A3 Micro-electromechanical switch performance enhancement |
| 06/30/2004 | CN2622961Y Energy saving facsimile appts. |
| 06/30/2004 | CN2622934Y Railway signal microelectronic integrated relay |
| 06/30/2004 | CN2622843Y Mains switching modular able to be controlled for automatic a.c. switching off |
| 06/30/2004 | CN1508831A Starter magnetic-switch stabilized circuit |
| 06/29/2004 | US6757149 Method for controlling fuel injector valve solenoid current |
| 06/29/2004 | US6756868 Electromagnetic relay |
| 06/24/2004 | WO2004053913A1 Module for time and/or power control of an electrical user |
| 06/23/2004 | EP1431681A1 Continuous-flow heater |
| 06/17/2004 | WO2004051686A1 Electromagnetic relay control |
| 06/16/2004 | EP1428237A1 Safety switch device for safe disconnection of an electric consumer |
| 06/10/2004 | WO2004027828A3 Amperage control for valves |
| 06/10/2004 | US20040109278 Transformer circuit |
| 06/10/2004 | US20040108725 Stabilization circuit of magnet switch for starter |
| 06/09/2004 | EP1426612A1 The stabilization circuit of magnet switch for starter |
| 06/09/2004 | CN1503287A Spark free on/off control circuit for contact of relay |
| 06/02/2004 | EP1424171A1 Method for judging communication state in a control system of linked joints |
| 06/02/2004 | EP1423860A1 Method for solenoid control |
| 06/02/2004 | CN2619414Y Light control energy saving cnotroller for drinking water device |
| 06/02/2004 | CN2619402Y Relay for single phase capacity operation double speed motor 4/6 pole winding changeover |
| 06/02/2004 | CN1151940C Device for safety controlling and monitoring railway electric equipment for signal technology |
| 06/01/2004 | US6744616 Method and apparatus for controlling an electronic control |
| 06/01/2004 | CA2314560C Dual switch control system |
| 05/27/2004 | WO2004045041A1 Control device for automatic machine |
| 05/27/2004 | US20040100236 Device for disconnecting and switching a load |