| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/24/1982 | EP0048171A1 Arc-chutes |
| 03/23/1982 | US4321439 Electrical contact construction for air-blast circuit breakers |
| 03/23/1982 | US4321436 Electrical circuit interruptors |
| 03/23/1982 | US4321435 Fluid actuating device for an electric circuit breaker |
| 03/16/1982 | US4320270 Gas-blast switch |
| 03/16/1982 | US4320269 Vacuum interrupter with increased separation of functions |
| 03/16/1982 | CA1120082A1 Puffer-type circuit breaker with a preinsertion resistor unit |
| 03/10/1982 | EP0047214A2 Connection device for two three-phase busbar sets placed within orthogonal enclosures of a high-voltage metal-enclosed gas-insulated equipment |
| 03/10/1982 | EP0046824A2 Gas blast switch |
| 03/09/1982 | US4319296 Series connected oscillating transverse field interrupter and method |
| 03/09/1982 | US4319105 High voltage air disconnect switch incorporating a puffer type load break switch |
| 03/09/1982 | CA1119648A1 Vacuum interrupter latch release mechanism |
| 03/02/1982 | CA1119221A1 Gas blast circuit breaker with an improved arcing contact arrangement |
| 03/02/1982 | CA1119220A1 Arc spinner interrupter with chromium copper arcing contact |
| 03/02/1982 | CA1119219A1 Electromagnetic circuit breaker arc extinguishing device comprising a helically-shaped arcing chamber |
| 02/24/1982 | EP0046174A1 Compressed-gas puffer-type circuit interrupter |
| 02/23/1982 | CA1118826A1 Change-over switch for tap-changing regulating transformers |
| 02/23/1982 | CA1118823A1 High-density high-conductivity electrical contact material for vacuum interrupters and method of manufacture |
| 02/16/1982 | US4316138 Electric switching section |
| 02/16/1982 | US4316051 Partition insulator having a predetermined rupture behavior |
| 02/16/1982 | CA1118476A1 Gas-insulated circuit-interrupter having improved insulating nozzle |
| 02/16/1982 | CA1118475A1 Vacuum-type circuit interrupter with an improved contact with axial magnetic field coil |
| 02/16/1982 | CA1118474A1 Low voltage vacuum switch with plural conic shields about the contacts |
| 02/09/1982 | US4315231 High-speed circuit breaker |
| 02/09/1982 | US4315121 Saturable magnetic steel encased coil for arc spinner interrupter |
| 02/09/1982 | US4315120 Load disconnection switch |
| 02/09/1982 | US4315119 Tank type gas circuit breaker |
| 02/09/1982 | CA1117784A1 Density monitoring apparatus |
| 02/03/1982 | EP0045229A1 Switch with double rotating arc |
| 02/03/1982 | EP0045072A1 Vacuum switch |
| 02/02/1982 | CA1117574A1 Electrical gas-blast circuit breaker and method of manufacture |
| 02/02/1982 | CA1117573A1 Puffer-type circuit interrupter |
| 02/02/1982 | CA1117572A1 Electrical vacuum switch having means for generating an axial magnetic field between the contact faces |
| 01/26/1982 | CA1117237A1 Alumina-thickened cycloaliphatic epoxy materials for use in atmospheres of arced sulfur hexafluoride and articles thereof |
| 01/19/1982 | CA1116669A1 Load break switch |
| 01/19/1982 | CA1116667A1 Self-extinguishing type gas filled circuit breaker |
| 01/19/1982 | CA1116495A1 Hydraulic system for simultaneous control, especially for the control of electric circuit breakers |
| 01/12/1982 | US4310736 Vacuum circuit interrupter |
| 01/12/1982 | US4310735 Arc-shield supporting structure of a vacuum power interrupter |
| 01/12/1982 | CA1116216A1 Vacuum switch assembly for shunting series connected electrolytic cells |
| 01/06/1982 | EP0043258A2 A vacuum interrupter and methods of manufacturing the same |
| 01/06/1982 | EP0043186A2 Vacuum circuit interrupter |
| 01/05/1982 | US4309581 Gas circuit breaker having independent main and arcing circuits |
| 01/05/1982 | CA1115755A1 Arc self-extinguishing switch device |
| 01/05/1982 | CA1115754A1 Fluid blast circuit interrupter including obstruction-free fluid release facility |
| 01/05/1982 | CA1115753A1 High speed actuating mechanism for a circuit interrupter |
| 12/30/1981 | EP0042456A1 High voltage power circuit breaker |
| 12/29/1981 | CA1115312A1 Single barrel puffer circuit interrupter |
| 12/29/1981 | CA1115311A1 Hydraulically-activated operating system for an electric circuit breaker |
| 12/23/1981 | EP0042152A1 Vacuum circuit breaker |
| 12/22/1981 | US4307428 Circuit breaker apparatus for high voltage direct currents |
| 12/22/1981 | US4307274 Circuit interrupter using dielectric liquid with energy storage |
| 12/22/1981 | US4307273 Gas blast circuit breaker |
| 12/15/1981 | US4306263 Synchronous closing system and latch therefor |
| 12/15/1981 | US4306130 Arc self-extinguishing switch device |
| 12/15/1981 | US4306129 Low voltage contactor switch with three-phase contact bank |
| 12/15/1981 | US4306128 Vacuum circuit interrupter |
| 12/15/1981 | CA1114433A1 Spring operating devices for high-voltage circuit-breakers |
| 12/09/1981 | EP0041081A1 Electric self blast switch |
| 12/08/1981 | US4305107 DC Interrupting apparatus |
| 12/08/1981 | CA1113986A1 Vacuum-type contactor assembly |
| 12/08/1981 | CA1113983A1 Circuit breaker utilizing improved arc chambers |
| 12/02/1981 | EP0040933A2 Vacuum-housed circuit interrupter |
| 12/02/1981 | EP0040918A1 A vacuum circuit interrupter with a pressure monitoring system |
| 12/02/1981 | EP0040781A1 Disconnecting switch for high-voltage metal-enclosed switchgear |
| 12/01/1981 | US4303814 Gas-blast power switch |
| 11/24/1981 | US4302646 Electric switch and operating mechanism therefor |
| 11/24/1981 | US4302645 Gas-blast switch |
| 11/24/1981 | US4302642 Vacuum switch assembly |
| 11/24/1981 | US4302514 Two high melting metals of different particle diameters dispersed in copper matrix |
| 11/24/1981 | CA1113140A1 Pre-insertion resistor mechanism for a circuit interrupting device |
| 11/24/1981 | CA1113139A1 Moving contact for radial blow-in effect for arc spinner interrupter |
| 11/17/1981 | US4301341 Electrical switchgear |
| 11/17/1981 | US4301340 Electrical switchgear |
| 11/17/1981 | US4301339 Electrical bridge attached to high current switch |
| 11/17/1981 | US4300586 Stabilizer for stabilizing the gas pressure in an air blast circuit breaker |
| 11/17/1981 | CA1112695A1 Gas blast breaker with rapid thermal and dielectric recovery |
| 11/11/1981 | EP0039611A1 Vacuum interrupter |
| 11/11/1981 | EP0039523A1 High tension circuit breaker |
| 11/10/1981 | US4300181 Commutation circuit for an HVDC circuit breaker |
| 11/10/1981 | US4299889 Copper-tungsten alloy |
| 11/10/1981 | CA1112272A1 Electromagnetic contactor arc chute |
| 11/04/1981 | EP0039096A2 Puffer type gas-blast circuit interrupter |
| 11/03/1981 | CA1111885A1 Device for inserting closing resistors in a high voltage circuit breaker |
| 11/03/1981 | CA1111884A1 Low voltage vacuum switch with internal arcing shield |
| 11/03/1981 | CA1111883A1 Low voltage vacuum switch with three internal contacts including a center floating contact |
| 11/03/1981 | CA1111882A1 Vacuum circuit breaker with delayed trip operation |
| 10/27/1981 | US4297553 Enclosed switching apparatus |
| 10/21/1981 | EP0038286A1 Power drive for an electric switching device with elastic transmission of the driving power |
| 10/20/1981 | US4296289 Electric gas-blast switch |
| 10/20/1981 | US4296288 Gas insulated disconnecting switches |
| 10/20/1981 | CA1111089A1 High voltage plain break circuit interrupter |
| 10/14/1981 | EP0037765A1 Circuit interrupter with an arc rotated by a permanent magnet |
| 10/13/1981 | US4295024 Spring biased energy absorber for vacuum switch contact shafts |
| 10/13/1981 | US4295023 Gas-blast circuit-breaker |
| 10/13/1981 | US4295021 Electromagnetic arc extinction apparatus for switchgear |
| 10/13/1981 | CA1110749A1 High-voltage direct current interruption devices |
| 10/13/1981 | CA1110683A1 Tool for making and breaking load currents |
| 10/07/1981 | EP0037295A1 High-speed circuit breaker provided with a shock-proof device |
| 10/07/1981 | EP0037162A1 Vacuum circuit breaker |