| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 08/08/1995 | US5440088 Molded case circuit breaker with auxiliary contacts |
| 08/02/1995 | EP0593498B1 Isolating switch with a main switch pin and an auxiliary contact pin |
| 07/19/1995 | CN2203800Y Automatic-drop off switch for motor power |
| 06/28/1995 | EP0660351A2 Improved current limiting fuse and dropout fuseholder |
| 06/28/1995 | CA2139025A1 Delay mechanism for retarding relative movement between two members |
| 06/28/1995 | CA2139023A1 Current limiting fuse and dropout fuseholder |
| 06/21/1995 | EP0658964A2 Switch gear |
| 06/21/1995 | EP0658909A1 Drive mechanism for a power circuit breaker |
| 05/17/1995 | CN2197760Y Explosionproof 6000 voltage switch for mines |
| 04/25/1995 | US5410116 Of a power transformation system |
| 03/24/1995 | CA2106825A1 Electrical cutout for high voltage power lines |
| 03/01/1995 | EP0640998A1 Load break disconnecting device with solid arc suppression means |
| 01/26/1995 | WO1995002888A1 Fuse arrangement |
| 01/19/1995 | DE4419240A1 Single-pole or multi-pole NC fuse (low voltage high rupture capacity fuse) |
| 01/17/1995 | US5382765 Grounding switch for a compressed-gas-insulated, metal-encased high-voltage switching system |
| 01/17/1995 | US5382764 High voltage section |
| 01/11/1995 | EP0633587A1 Gas-insulated metal clad middle tension switching cell |
| 01/10/1995 | US5380962 High-power RF switch |
| 12/28/1994 | CN2186438Y Dropping switch with electric magnetic protecting |
| 12/14/1994 | EP0628978A1 Electrical switch gear |
| 12/14/1994 | CN2185468Y Separable contact for isolating switch |
| 12/07/1994 | CN2184977Y Anti-wrong operation device for high voltage load stwitch cabinet |
| 11/30/1994 | CN1095857A Grunding switch gear device |
| 11/29/1994 | US5369234 Perpendicularly-opening grounding section switch |
| 11/10/1994 | DE4404186A1 High-voltage switching device |
| 10/26/1994 | EP0621616A1 Grounding switch gear device |
| 10/26/1994 | EP0621613A1 Operation mechanism of switch having three positions of operation |
| 10/26/1994 | CN1026370C Gas isolated sisconnection switch and gas isolated switching device |
| 10/11/1994 | US5355111 Nested contact and cap assembly for fuseholder |
| 10/03/1994 | CA2120376A1 Load break disconnecting device with solid arc suppression means |
| 09/28/1994 | CN2178382Y Back operating plug mounting high voltage switch for electrical appliance |
| 09/15/1994 | DE4307459A1 NH fuse (low-voltage high rupture capacity fuse) load disconnector strip |
| 09/14/1994 | CN2177289Y High voltage fall-down type protective switch |
| 08/23/1994 | US5341265 Method and apparatus for detecting and responding to downed conductors |
| 07/20/1994 | EP0494151B1 Earthing switch for a metal-encapsulated high-voltage switchboard plant insulated by pressurised gas |
| 07/19/1994 | CA1330819C Contact assembly for high-voltage switch |
| 07/19/1994 | CA1330816C Switch contacts with improved fault-closing capability |
| 07/13/1994 | CN2171913Y High-voltage anti-theft falling switch cabinet |
| 06/30/1994 | DE4243046A1 Gas-insulated electric lead system and lead entry for switchgear casing |
| 06/29/1994 | EP0603503A1 Method for switching a fused load-break switch and fused load-break switch |
| 06/22/1994 | EP0602930A1 Combined interrupter-disconnect switch blade for high voltage switch |
| 06/22/1994 | EP0471678B1 Load switching device with a three-position switch |
| 06/15/1994 | EP0500550B1 Isolator switch for metal-clad, compressed-gas-insulated high-voltage switchgear |
| 06/15/1994 | CA2111425A1 Combined interrupter-disconnect switch blade for high voltage switch |
| 05/25/1994 | CN2166512Y 熔断器式刀开关 Fuse type knife switch |
| 05/25/1994 | CN1087202A Gas-insulated disconnector provided with structure for suppressing metal particles contamination |
| 05/05/1994 | DE4236623A1 Emergency operation of electrical switchgear by gas generator - bursting cover between source of gas and cylinder contg. piston which drives plunger into earthing contact |
| 05/03/1994 | CA1329234C Metal-enclosed, pressurized gas-insulated high-voltage switching installation with insulated grounding switch |
| 04/28/1994 | DE4235443A1 Electrical load isolation switching unit with one or more interlocks - ensures cover can only be moved when switching stages are in isolated condition |
| 04/27/1994 | EP0593902A1 Medium-voltage switchgear |
| 04/27/1994 | EP0593498A1 Isolating switch with a main switch pin and an auxiliary contact pin. |
| 04/20/1994 | EP0593162A1 Current limiting fuse and dropout fuseholder for interchangeable cutout mounting |
| 04/20/1994 | EP0592742A1 Isolator switch with improved breaking capacity and vertical opening movement |
| 04/20/1994 | CN2162706Y Wireless remote-controlled high-voltage fuse |
| 04/13/1994 | EP0592338A1 Mechanism for an earthing switch |
| 04/13/1994 | EP0591591A1 Isolating switch with snap opening |
| 04/13/1994 | CN1085348A Current limiting fuse and dropout fuseholder for interchangeable cutout mounting |
| 04/06/1994 | EP0591074A1 Moulded case circuit breaker with auxiliary contacts |
| 04/05/1994 | US5300912 Electrical cutout for high voltage power lines |
| 03/30/1994 | CN2160149Y Electric drive high voltage isolation switch for electric dust remover |
| 03/18/1994 | CA2106144A1 Current limiting fuse and dropout fuseholder for interchangeable cutout mounting |
| 03/10/1994 | DE4230060A1 Circuit breaker with movable contacts under insulating gas - has one contact member with galvanically deposited hard silver@ layer |
| 03/09/1994 | CN2158567Y High voltage grounding switch |
| 03/08/1994 | US5293012 Disconnecting switch |
| 03/02/1994 | CN2158134Y Protected disconnecting switch |
| 02/22/1994 | CA1327223C Latch and pivot mechanism for electronic sectionalizer mounting structure |
| 01/25/1994 | US5281781 Apparatus for switching a high-current power source |
| 01/04/1994 | US5276286 Exposed high voltage outdoor disconnector for operation under icing conditions |
| 12/29/1993 | EP0576047A2 High voltage switchgear |
| 12/29/1993 | CN2151531Y Self locking seperate switch |
| 12/29/1993 | CN1080088A High-power RF switch |
| 12/28/1993 | US5274349 Current limiting fuse and dropout fuseholder for interchangeable cutout mounting |
| 12/19/1993 | CA2071588A1 Switch for use as a vertically mounted cut out or in-line switch |
| 12/08/1993 | EP0573196A2 High-power RF switch |
| 12/07/1993 | US5268543 Locking arrangement for disconnect switch |
| 12/06/1993 | CA2094973A1 High-power rf switch |
| 12/02/1993 | DE4216970A1 High-tension air-break isolating switch with rotary contact arm - incorporates vertical arrangement of upper and lower insulator strings joined by gearbox for arm rotation in vertical plane |
| 11/24/1993 | EP0570688A2 Switch gear |
| 11/24/1993 | CN2147644Y Series air insulator |
| 11/18/1993 | EP0570265A1 Earthing switch with perpendicular contact opening |
| 11/18/1993 | EP0570264A1 Sectionaliser with vertical contact opening and rockable column |
| 10/28/1993 | DE4308691A1 LV power fused electrical load switching unit - has base and plug in top section that has guide for location to engage internal contacts |
| 10/07/1993 | DE4210545A1 Breaker switch for metal-encapsulated HV switch appts. - has pair of cooperating movable and stationary contact pieces within switch encapsulation, each having pre-ignition contact pin |
| 10/06/1993 | EP0563530A1 Power switch block |
| 10/06/1993 | CN2143358Y Electromechanic locking device for high voltage board |
| 09/07/1993 | US5243159 Section or disconnect switch with an interrupter switch operated by the upward movement of the disconnect switch blade |
| 08/25/1993 | EP0556478A1 Disconnecting switch for a metal-sheathed gas-insulated high-tension installation |
| 08/17/1993 | US5237137 Isolating switch for metal-clad, compressed-gas insulated high-voltage switchgear |
| 08/05/1993 | DE4302416A1 Automatic earthing device e.g. for metal-encapsulated gas-insulated load isolating switch - increases pressure rapidly after sparking to activate device by pressure activated trigger mechanism |
| 07/20/1993 | US5228559 Section switch that opens suddenly |
| 06/09/1993 | CN1021178C Arrangement for gas insulating switch of network transformer substation |
| 06/02/1993 | CN1021093C Circuit breaker |
| 05/12/1993 | CN2133051Y Falled fuse |
| 05/12/1993 | CN2133043Y Double-throw high-voltage, isolation suitch |
| 04/28/1993 | CN2131186Y Isolator with protector |
| 04/07/1993 | CN2129468Y Multifunction insulation pull rod |
| 04/07/1993 | CN2129459Y High voltage isolated switch and mechanical interlock device of high voltage net door |
| 04/07/1993 | CN2129458Y Anti-theft isolated switch |
| 03/30/1993 | US5198630 Resistance insertion type circuit-breaker |
| 03/30/1993 | US5197604 High-voltage change-over switch with linear movement |