| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/13/1984 | EP0110005A1 Contact arrangement for a pantograph disconnecting switch |
| 06/12/1984 | US4454476 Method of and apparatus for synthetic testing of a multi-break circuit breaker |
| 06/12/1984 | US4454394 Circuit breaker having a parallel resistor |
| 06/05/1984 | US4453056 Driving arrangement for electrical switches with an independent trip release mechanism |
| 06/05/1984 | US4453054 Contact apparatus for vacuum switches |
| 06/05/1984 | CA1168680A1 Electric circuit interrupting apparatus |
| 05/22/1984 | US4450330 Electric switch with two quenching nozzles having an improved quenching medium flow |
| 05/22/1984 | US4450329 Gas circuit breaker |
| 05/22/1984 | US4450327 Vacuum interrupter |
| 05/22/1984 | CA1167906A1 Circuit protecting apparatus including resettable vacuum fuse and switch |
| 05/16/1984 | EP0108279A1 High-voltage DC circuit breaker apparatus |
| 05/15/1984 | US4449021 Vacuum circuit breaker |
| 05/09/1984 | EP0107830A1 Permanent current switch for short-circuiting at least one superconducting magnet winding |
| 05/08/1984 | US4447564 Reactive resin compositions and molded substances made therefrom |
| 05/01/1984 | US4446346 Vacuum interrupter |
| 05/01/1984 | US4446343 Switch mechanism for transformer |
| 05/01/1984 | CA1166671A2 Fuse having improved switch |
| 04/25/1984 | EP0106315A1 Circuit breaker of porcelain insulator type |
| 04/25/1984 | EP0106264A1 Power switch apparatus |
| 04/24/1984 | US4445162 Compact chassis plate for switchgear enclosure |
| 04/24/1984 | US4445020 Circuit interrupter |
| 04/24/1984 | US4445019 Compressed-gas switch |
| 04/24/1984 | US4445018 Energy efficient floating head puffer interrupter |
| 04/24/1984 | US4445017 Electrical switchgear |
| 04/24/1984 | US4445016 Vacuum switching tube with metal cap |
| 04/24/1984 | US4445015 Vacuum switching tube with a ring to generate an axial magnetic field |
| 04/24/1984 | US4445014 High-voltage disconnect switch |
| 04/24/1984 | US4444671 Arc extinguishing material |
| 04/17/1984 | US4443674 Circuit interrupter closing resistance mechanism |
| 04/17/1984 | US4443672 Low capacitance radio frequency switch |
| 04/12/1984 | WO1984001469A1 Electric current breaking device |
| 04/10/1984 | US4442471 Method and apparatus for short circuit protection of high voltage distribution systems |
| 04/10/1984 | US4442469 DC Circuit breaker apparatus |
| 04/10/1984 | US4442330 Puffer type current interrupter |
| 04/10/1984 | US4442329 Dead tank housing for high voltage circuit breaker employing puffer interrupters |
| 04/04/1984 | EP0104599A2 High tension disconnecting switch with preliminary contacts |
| 04/04/1984 | EP0104384A1 Contact arrangement for a vacuum interrupter |
| 04/03/1984 | US4440998 Segmented circuit breaker housing with rotatably adjustable bushing positions |
| 04/03/1984 | US4440997 Puffer interrupter with arc energy assist |
| 04/03/1984 | US4440996 Dead tank gas-insulated puffer-type circuit interrupter having interrupting unit in insulated casing |
| 04/03/1984 | US4440995 Vacuum circuit interrupter with on-line vacuum monitoring apparatus |
| 03/28/1984 | EP0104134A2 Vacuum switch with an annular part and diametrical arm of the contact pieces |
| 03/28/1984 | EP0103758A2 Method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current |
| 03/28/1984 | EP0103721A1 Coupling device |
| 03/27/1984 | US4439652 Contact system for gas blast circuit breakers |
| 03/27/1984 | US4439651 Pressurized gas circuit-breaker having opening and closing resistors |
| 03/27/1984 | CA1164514A1 Gas circuit breaker of resistance breaking type |
| 03/21/1984 | EP0103413A1 Contact switching device |
| 03/20/1984 | US4438308 Puffer piston circuit breaker |
| 03/20/1984 | US4438307 Electric vacuum switch |
| 03/20/1984 | US4438306 Circuit interrupter operating mechanism having a chemical operator with a stationary piston |
| 03/20/1984 | US4438302 Electrical shorting switch assembly including a last to open last to close arcing switch |
| 03/20/1984 | CA1163959A1 Electrochemical cell shunting switch assembly with matrix array of switch modules |
| 03/13/1984 | US4437020 Electromagnetic switchgear |
| 03/13/1984 | US4436241 Metal-ceramic joint |
| 03/07/1984 | EP0102317A2 Vacuum switch with helical electrical conductors |
| 03/07/1984 | EP0101792A2 Seal for a primary shaft |
| 03/06/1984 | US4435690 Primary circuit breaker |
| 03/06/1984 | US4435627 High tension circuit breaker |
| 02/28/1984 | US4434336 Circuit interrupter |
| 02/28/1984 | US4434335 Compressed-gas circuit interrupter with a heater |
| 02/28/1984 | US4434334 Circuit interrupter |
| 02/28/1984 | US4434333 Circuit breaker device |
| 02/28/1984 | US4434332 Hybrid-type interrupting apparatus |
| 02/28/1984 | US4434331 Vacuum power interrupting device |
| 02/28/1984 | US4433607 Projectile launching assembly |
| 02/22/1984 | EP0101371A1 Electrical switch with rotating arc |
| 02/21/1984 | US4433293 Method and apparatus for detecting abnormal conditions of circuit breakers |
| 02/21/1984 | US4433221 Impedance contact assembly for an electric circuit breaker |
| 02/21/1984 | US4433220 High-voltage circuit breaker |
| 02/21/1984 | US4433203 Electrical insulator with water-repellent oil-bleeding insulation bands |
| 02/21/1984 | US4433081 Thermosetting resin filler with quartz and alkaline earth metal carbonate fillers |
| 02/15/1984 | EP0100749A1 Interrupting chamber for a compressed-air circuit breaker |
| 02/15/1984 | EP0100510A2 Grounding switch |
| 02/14/1984 | US4431887 Gas-blast switch |
| 02/14/1984 | US4431886 Circuit-breaker |
| 02/14/1984 | US4431885 Vacuum interrupter |
| 02/14/1984 | US4431878 Compression piston switch |
| 02/08/1984 | EP0099970A1 Installation de commutation |
| 02/07/1984 | US4430536 Vacuum interrupter |
| 02/07/1984 | US4430124 Vacuum type breaker contact material of copper infiltrated tungsten |
| 02/07/1984 | CA1161888A1 Power drive for electric switchgear in which driving power is elastically transmitted thereto |
| 02/07/1984 | CA1161887A1 Circuit interrupting device |
| 02/07/1984 | CA1161886A1 High-voltage device |
| 01/31/1984 | US4429199 Three-pole cable connecting unit for a three-pole metal-encapsulated, high-voltage switching installation |
| 01/31/1984 | US4429197 Vacuum power interrupting device |
| 01/31/1984 | CA1161480A1 Nozzle for a puffer-type circuit breaker |
| 01/24/1984 | US4427860 Circuit breaker |
| 01/24/1984 | US4427859 High voltage power switch |
| 01/24/1984 | US4427857 Vacuum interrupter |
| 01/18/1984 | EP0098523A2 Vacuum monitor for vacuum interrupter |
| 01/17/1984 | US4426562 Rotary switch for switching very large DC currents |
| 01/17/1984 | US4426561 Puffer-type compressed-gas circuit-interrupter |
| 01/17/1984 | US4426560 Reduced pressure electrical switch |
| 01/17/1984 | CA1160664A1 Electrical junction of high conductivity for a circuit breaker or other electrical apparatus |
| 01/11/1984 | EP0097906A1 Contacts for vacuum switches |
| 01/10/1984 | CA1160332A1 Electrolytic cell electrical shunting switch assembly |
| 01/03/1984 | US4424429 Contactor for vacuum type circuit interrupter |
| 01/03/1984 | US4424428 Permanent magnet rotating arc switch |
| 01/03/1984 | US4424427 Vacuum switch |