| Patents for H01H 9 - Details of switching devices, not covered by groups (32,796) |
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| 03/29/1990 | DE3832919A1 Load selector for varying the transformation ratio of three-phase transformers having windings connected in delta |
| 03/28/1990 | EP0360372A2 Easily serviced fluid pressure operated switch |
| 03/28/1990 | EP0360368A2 Lever and abutting-contact arrangement for low-tension power switches with principal contacts and arcing contacts |
| 03/28/1990 | EP0360367A2 Low-voltage power circuit breaker with a wall portion for diverting the arc gases |
| 03/28/1990 | EP0360366A2 Moulded case for a low tension electrical power circuit breaker with reinforcement against overpressure |
| 03/28/1990 | CN1040884A Sylinder shape step-selector for variable transformer |
| 03/27/1990 | US4912747 Interlock device for electrical equipment |
| 03/27/1990 | US4912598 Heat dissipating electrical connector joining circuit breaker terminal and panel supply conductor |
| 03/27/1990 | US4911389 Instrument bracket assembly |
| 03/27/1990 | CA1267210A1 Current limiter |
| 03/22/1990 | DE3831344A1 Powered hand tool with workplace-illuminating device capable of being switched off |
| 03/21/1990 | EP0359467A2 Circuit breaker with arc gun |
| 03/21/1990 | EP0359105A1 Current limiter |
| 03/21/1990 | CN2054935U Magnetic double-control seesaw switch with indicator lamp |
| 03/21/1990 | CN2054934U Inserting sheet type plastic quenching shield for electro-control contactor |
| 03/20/1990 | US4910634 Interlock switch |
| 03/20/1990 | US4910485 Multiple circuit breaker with double break rotary contact |
| 03/20/1990 | US4910368 Push-button switch |
| 03/14/1990 | EP0358482A2 Electrical switching device with cover interlock |
| 03/14/1990 | EP0358289A2 Moving contact arrangement with a shielding part |
| 03/14/1990 | EP0358288A2 Contact arrangement for a power circuit breaker with auxiliary and main contacts |
| 03/14/1990 | EP0358287A2 Driving element for a multipole low tension electrical power circuit breaker |
| 03/14/1990 | EP0358286A2 Articulated conductive assembly for a contact lever |
| 03/14/1990 | CN2054567U Non-noise micro-power loss alternating current contactor |
| 03/14/1990 | CN2054566U Indicating, voltage regulating switch |
| 03/14/1990 | CN2054565U Pullswitch with indicator device |
| 03/14/1990 | CN2054563U Alternating current equipment switch electricity-saving life-prolonging unit |
| 03/14/1990 | CN1040457A 功能开关 Function Switch |
| 03/14/1990 | CN1040455A Cylindrical step-selector of variable transformer |
| 03/13/1990 | US4908733 Switch box for wall attachment |
| 03/08/1990 | WO1990002472A1 Reduced power switch |
| 03/08/1990 | DE3829881A1 Push button switch for a push button unit of compact construction |
| 03/07/1990 | EP0357472A1 Electrical control and/or protection apparatuses, constituent parts thereof and assemblies composed of these parts |
| 03/07/1990 | EP0356897A2 Cylindrical tap selector for tap transformers with an insulating bearing assembly for driving shafts |
| 03/07/1990 | CN2054220U Checker for preventing electrical equipment from faulty operation |
| 03/06/1990 | US4907126 Housing for an electrical component, particularly for a relay |
| 03/06/1990 | US4906993 Keyboard scanner apparatus and method |
| 03/06/1990 | US4906804 Switch for a hair drying device |
| 02/28/1990 | EP0355814A2 A force storage mechanism in an on-load tap changer |
| 02/28/1990 | EP0355742A2 A commander apparatus |
| 02/28/1990 | CN2053790U Pull switch capable of determining cut-in or cut-off by hearing or touching |
| 02/28/1990 | CN2053789U Combined multistep/stepless voltage adjusting pull switch |
| 02/28/1990 | CN2053788U Moving contact chip for photographic pull-cord switch |
| 02/28/1990 | CN2053786U Narrow-gap large capacity plastic arc-suppression cover |
| 02/28/1990 | CN2053785U Non-arcing ac contactor |
| 02/28/1990 | CN2053784U Pull-cord indicator of pull-cord switch |
| 02/28/1990 | CN1040114A Ct quick change assembly |
| 02/28/1990 | CN1040113A Circuit breaker trip bar interlock |
| 02/28/1990 | CN1040110A Combination barrier and auxiliary ct board |
| 02/28/1990 | CN1007023B Gate turn-off control circuit for a solid state circuit interrupter |
| 02/27/1990 | US4905127 Remote control illuminator |
| 02/27/1990 | US4903933 Clamping apparatus for adjustably positioning switches |
| 02/27/1990 | CA1266291A1 Snap-in panel mounted circuit breaker |
| 02/26/1990 | EP0296183A4 Circuit breaker contact assembly. |
| 02/22/1990 | WO1990001786A1 Lock-on/lock-off switch for power tool |
| 02/22/1990 | WO1990001785A1 Switch enclosure |
| 02/22/1990 | WO1990001784A1 Switch enclosure |
| 02/22/1990 | EP0296181A4 Circuit breaker arc stack assembly. |
| 02/22/1990 | DE3827389A1 Electrical switching device |
| 02/21/1990 | CN2053375U Illumination switch |
| 02/21/1990 | CN2053374U Telecontroller of function conversion of universal button for household electric appliances |
| 02/21/1990 | CN1006940B Arcless circuit interrupter |
| 02/20/1990 | US4903318 Electric switch system for a power tool |
| 02/20/1990 | US4902859 Circuit breaker mechanical interlock |
| 02/15/1990 | DE3827090A1 Switching panel |
| 02/14/1990 | EP0354425A1 Cylindrical tap selector with a contact bridge guided by a cantilever made of insulating material |
| 02/14/1990 | EP0354424A1 Cylindrical tap selector for step-down transformers having contact rings fixed by connecting wires |
| 02/14/1990 | EP0354423A1 Cylindrical tap selector for step-down transformers having contact rings held in place by connecting wires |
| 02/14/1990 | CN2052968U Automatic air switch interlocking device |
| 02/14/1990 | CN2052949U Memory self-locking relay |
| 02/14/1990 | CN2052944U Arc extinguishing room with narrow seam at the foot of lapped insulation steel plate |
| 02/14/1990 | CN2052943U Pull switch with on-off indicator capable of lengthening lamp servicelife |
| 02/14/1990 | CN2052942U 节电拉线开关 Energy-saving pull switch |
| 02/14/1990 | CN2052941U Electronic pull switch for prolonging serrice life |
| 02/13/1990 | CA1265832A1 Operating system for remote electrical equipment |
| 02/07/1990 | EP0354048A2 Circuit breaker trip bar interlock |
| 02/07/1990 | EP0353986A2 Relay control method and apparatus for a domestic appliance |
| 02/07/1990 | EP0353951A2 Combination barrier and auxiliary CT board |
| 02/07/1990 | EP0353948A2 Laminated copper assembly |
| 02/07/1990 | EP0353940A2 Crossbar assembly |
| 02/07/1990 | EP0353939A2 CT quick change method |
| 02/07/1990 | EP0353355A1 An arc extinguisher |
| 02/07/1990 | EP0353343A2 Switch lock with lighted position indicator |
| 02/07/1990 | CN2052570U Discrimination sound switch |
| 02/06/1990 | US4899253 Molded case circuit breaker housing reinforcement |
| 02/06/1990 | US4899252 Mounting for a control device |
| 02/06/1990 | US4899120 Electromagnetic contactor |
| 02/01/1990 | DE3904253A1 Arc extinguishing arrangement for a short-circuit-current limiting low-voltage switch (circuit breaker) |
| 01/31/1990 | EP0352391A1 Control device for switching an electrical power circuit on and off |
| 01/31/1990 | EP0352341A1 Method for preventing the poor electrical conduction at electrical switch contacts which is caused by silicone vapor |
| 01/31/1990 | CN2052153U Switch box for receptacle |
| 01/31/1990 | CN2052147U Pulling switch for controlling the brightness of incandescent lamp |
| 01/31/1990 | CN2052145U Power switch against electric shock |
| 01/30/1990 | US4897765 Signal generating and transmitting apparatus with mobile shroud for electric terminals |
| 01/30/1990 | US4897755 Apparatus and method for relay control |
| 01/30/1990 | US4897754 Switching apparatus |
| 01/30/1990 | US4897517 Vacuum cleaner switch retainer |
| 01/30/1990 | US4897515 Securing device for the switch handle of a circuit breaker |
| 01/30/1990 | US4896558 Control handle for a work vehicle |
| 01/30/1990 | CA1265260A1 Method of sealing electric and electronic parts |