| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 06/15/2005 | CN1206684C Vacuum insulation switchgear and making method thereof |
| 06/09/2005 | DE102004054360A1 Leistungsversorgungs-Trennschalter eines Hebelanbringungstyps Power supply isolation switch of a lever mounting type |
| 06/08/2005 | EP1538650A2 Isolator/circuit-breaker device for electric substations |
| 06/07/2005 | CA2146792C Handling tool for overhead-mounted devices |
| 06/01/2005 | CN1623257A Gas-insulated switch gear |
| 05/31/2005 | US6901538 Method, system, and recording medium of testing a 1394 interface card |
| 05/25/2005 | DE19615859B4 Einrichtung zum Sichern eines Deckels an einem Schaltergestell Means for securing a cover to a switch frame |
| 05/25/2005 | CN1619745A Vacuum switchgear |
| 05/24/2005 | US6897396 Switch gear and method of manufacturing thereof |
| 05/19/2005 | WO2004109880A3 Switch assembly |
| 05/19/2005 | US20050104709 Fuse cutout with improved dropout performance |
| 05/19/2005 | US20050103514 Vacuum switchgear |
| 05/18/2005 | CN2701052Y Sulfur hexafluoride high-voltage disconnecting switch |
| 05/12/2005 | US20050098419 Lever fitting-type power supply circuit breaker |
| 05/11/2005 | EP1529299A2 Drive mechanism for switching installation, and method for operating it |
| 05/11/2005 | CN1615532A 空气断路器 Air Circuit Breakers |
| 05/11/2005 | CN1201357C Switch mechanism and its manufacturing method |
| 04/27/2005 | CN1199214C Air circuit breaker |
| 04/26/2005 | US6884940 Vacuum switchgear |
| 04/20/2005 | CN1198305C Switch device |
| 04/20/2005 | CN1198304C Bellows and vacuum switch using the bellows |
| 04/19/2005 | US6881917 Vacuum switchgear |
| 04/13/2005 | EP1082791B1 Combined disconnecting-earthing switch for installation in an encapsulation module of a gas-insulated switchgear and encapsulation module comprising a combined disconnecting-earthing switch |
| 04/12/2005 | US6879227 Switching contact arrangement |
| 04/12/2005 | CA2340843C Separable loadbreak connector flashover inhibiting cuff venting tool |
| 04/05/2005 | US6876206 Automatic jack tester |
| 03/31/2005 | US20050068708 Switchable lightning arrester system |
| 03/30/2005 | CN2689542Y Separating and grounding valve with gas insulation |
| 03/30/2005 | CN1195345C Gas-insulated three-phase type packaged switch apparatus |
| 03/29/2005 | CA2215364C Circuit-interrupting device with handling features |
| 03/23/2005 | CN1598993A Vacuum switch and a vacuum switchgear using the same |
| 03/22/2005 | US6870372 Abnormality detection apparatus of comparator |
| 03/17/2005 | WO2005024876A1 Bypass recloser assembly |
| 03/16/2005 | CN1595579A Electric operating equipment for double isolating switch |
| 03/16/2005 | CN1193395C Vacuum interrupter with two contact systems |
| 03/16/2005 | CN1193394C Switch gear |
| 03/15/2005 | US6867679 Mounting for circuit interrupter |
| 03/09/2005 | CN1192414C Draw-out type high-current switch |
| 03/08/2005 | US6865072 Metal-enclosed switchgear |
| 03/03/2005 | US20050045460 Bypass recloser assembly |
| 02/24/2005 | WO2005018066A2 Three-position ground switch |
| 02/17/2005 | US20050035835 Switching contact arrangement for a power switch |
| 02/17/2005 | US20050035087 Earthing switch |
| 02/16/2005 | EP1507274A1 Earthing switch |
| 02/16/2005 | CN2679896Y Earthing knife-switch structure |
| 02/16/2005 | CN1581617A Earthing switch |
| 02/15/2005 | US6855903 Vacuum switch |
| 02/09/2005 | EP1504508A1 Switching installation provided with an electrically insulating barrier |
| 02/09/2005 | CN1188883C Insulating switch apparatus |
| 02/02/2005 | CN1187779C Interrupter for circuit breaker |
| 02/01/2005 | US6849813 Step switch with selector |
| 02/01/2005 | CA2214349C Operation selector for switchgear |
| 01/26/2005 | EP1500119A1 Fuse cutout with improved dropout performance |
| 01/26/2005 | CN1186797C 空气断路器 Air Circuit Breakers |
| 01/26/2005 | CN1186792C 断路器 Breaker |
| 01/19/2005 | CN1567396A Electric equipment, supporting body of electric switch equipment and monitor equipment, and electric equipment including these |
| 01/12/2005 | CN2671109Y High-voltage isolating switch devices |
| 01/06/2005 | WO2004093276A3 Earthing switch comprising a displaceable contact piece |
| 01/05/2005 | CN2669343Y Automatic-isolation apparatus of high-voltage isolation switch |
| 01/04/2005 | US6838884 Timing output panel |
| 12/30/2004 | US20040263184 High-speed duty cycle test through DC measurement using a combination of relays |
| 12/30/2004 | DE10325684A1 Schalteranordnung Switch assembly |
| 12/29/2004 | CN2667640Y Indoor isolating switch knife ceramic cover assemling structure |
| 12/28/2004 | US6836124 Capacitance monitoring systems |
| 12/28/2004 | CA2213671C Switch for hookstick operation |
| 12/23/2004 | US20040256360 Vacuum switchgear |
| 12/22/2004 | CN1181603C 开关 Switch |
| 12/16/2004 | WO2004109881A2 Communication system |
| 12/16/2004 | WO2004109880A2 Switch assembly |
| 12/15/2004 | CN1180448C Vacuum switch device |
| 12/14/2004 | US6831828 Gas-insulated switchgear |
| 12/09/2004 | US20040246003 Electric circuit test device |
| 12/09/2004 | US20040246001 Method and apparatus for guided establishment of a signal probe configuration |
| 12/08/2004 | CN1179455C Gas insulating switch device |
| 12/01/2004 | CN2660671Y High voltage load switch |
| 12/01/2004 | CN1551271A Vacuum switch apparatus |
| 12/01/2004 | CN1178253C Vacuum switch and vacuum switch apparatus using the same |
| 11/30/2004 | US6825492 Method of manufacturing a semiconductor device |
| 11/30/2004 | US6825426 Make-before-break selector switch |
| 11/25/2004 | US20040232112 Vacuum switchgear |
| 11/24/2004 | CN1177346C Operating mechanism for autorecloser with series disconnector |
| 11/18/2004 | US20040227523 Cellular phone configured with off-board device capabilities and starter/charger and battery testing capabilities |
| 11/18/2004 | DE10317735B3 Erdungsschalter mit einem bewegbaren Kontaktstück Earthing switch with a movable contact piece |
| 11/17/2004 | CN2657182Y Outdoor three-phase high voltage insulated switch |
| 11/17/2004 | CN1547229A Vacuum switching apparatus |
| 11/11/2004 | US20040222192 Vacuum switch |
| 11/10/2004 | CN1175456C Housing for fused switch |
| 11/03/2004 | EP0934598B1 Vertical antitracking skirts |
| 11/03/2004 | CN2653672Y Integrated AC high voltage isolation switch |
| 11/03/2004 | CN1542882A Novel intelligent electric error preventing system capable of microcomputer networking and real-time monitoring |
| 11/03/2004 | CN1174533C Electrical switch with metallic compartmented jacket for positioning circuit breaker |
| 11/02/2004 | CA2152700C Contact arrangement for electrical apparatus |
| 10/28/2004 | WO2004093276A2 Earthing switch comprising a displaceable contact piece |
| 10/27/2004 | CN1173445C Switch gear |
| 10/27/2004 | CN1173379C Switching device |
| 10/27/2004 | CN1173378C Switch device |
| 10/26/2004 | US6809524 Testing of conducting paths using a high speed I/O test package |
| 10/21/2004 | US20040207505 Low current fuse cartridge for circuit interrupter |
| 10/21/2004 | DE10325681B3 Switching device for gas-insulated hybrid switch or V power switch, has breaker unit contained in tubular encapsulation housing extending at an angle to both the vertical and horizontal |
| 10/21/2004 | DE102004015386A1 Dreistellungsschalter Three-position switch |