Patents
Patents for H01H 39 - Switching devices actuated by an explosion produced within the device and initiated by an electric current (813)
08/1989
08/01/1989US4852494 Explosively actuated switch
05/1989
05/23/1989CA1254647A1 Current-limiting surge arrester disconnector
05/23/1989CA1254602A1 Switch for a high-voltage interrupting module
05/09/1989US4829390 Electrical switch and circuitry for appliance
01/1989
01/10/1989US4797777 Electronic sectionalizer and mounting structure for switchgear
12/1988
12/06/1988CA1246127A1 Internal combustion circuit breaker
08/1988
08/30/1988US4768010 Latch and pivot mechanism for electronic sectionalizer mounting structure
08/16/1988US4763478 Method and device for driving a linearly movable component, especially the movable switch contact of an electric high-voltage circuit breaker
07/1988
07/12/1988CA1239061A1 Compressed-gas-actuated power-element
03/1988
03/29/1988US4734823 Fault current interrupter and explosive disconnector for surge arrester
01/1988
01/07/1988EP0251147A2 Method and device for the propulsion of a linear movable building element, in particular the movable contact of a high voltage electrical power circuit breaker
12/1987
12/01/1987US4710847 Current-limiting surge arrester disconnector
10/1987
10/28/1987EP0243076A2 Current interrupter
10/13/1987CA1228101A1 Passively detonated pryo-assisted fuse
09/1987
09/08/1987US4692577 Switch for a high-voltage interrupting module
09/01/1987US4691085 High voltage interrupting switch with improved contact connection arrangement and method
08/1987
08/11/1987US4686337 Circuit interrupter having a chemical operator with double-acting drive means
08/04/1987US4685021 Fault current diverter
07/1987
07/14/1987US4680434 Explosive-driven, high speed, arcless switch
06/1987
06/30/1987US4677412 Energy supplemented electrical fuse
06/25/1987DE3545327A1 Drive for an electrical circuit breaker
05/1987
05/06/1987EP0220837A2 Improved switch for a high-voltage interrupting module
04/1987
04/28/1987US4660473 Compressed gas-actuated mechanical power element
04/02/1987DE3537314A1 Device for interrupting current
02/1987
02/03/1987US4641000 Actuator for electrical circuit interrupter using nitrocellulose type solid propellant
12/1986
12/30/1986USRE32321 Electric switch and improved device using same
10/1986
10/14/1986US4617436 Actuator for an electrical circuit interrupter
09/1986
09/02/1986US4609902 Arrester support and disconnector structure
04/1986
04/01/1986US4580020 Dynamic seal for gas generator chamber
02/1986
02/25/1986US4572933 Pressure-operated switch for a high-voltage interrupting module
02/18/1986US4571468 Inductive store opening switch
02/04/1986CA1200266A1 Pyrotechnic current interrupter
01/1986
01/28/1986CA1199954A1 Pressure-operated switch for a high-voltage interrupting module
01/28/1986CA1199953A1 Pressure-operated switch for a high-voltage interrupting module
01/28/1986CA1199952A1 Pressure-operated switch for a high-voltage interrupting module
01/28/1986CA1199951A1 Pressure-operated switch for a high-voltage interrupting module
01/07/1986US4563556 Internal combustion circuit breaker
11/1985
11/19/1985CA1196941A1 Brake and operation indicator for a high-voltage switch
11/19/1985CA1196940A1 Pressure-operated switch for a current-limiting, high- voltage interrupting module
11/12/1985CA1196669A1 Electrical control module for a current-limiting fuse
10/1985
10/16/1985EP0158482A1 Internal combustion circuit breaker
10/10/1985WO1985004515A1 Internal combustion circuit breaker
08/1985
08/27/1985US4538133 Passively detonated explosively-assisted fuse
08/13/1985CA1191882A1 Circuit interrupter operating mechanism having a chemical operator with stationary combustion chambers
07/1985
07/10/1985EP0147661A1 Mechanical power source actuated by gas pressure
07/02/1985US4527025 Miniature delay switch
03/1985
03/27/1985EP0135247A1 Pressure-operated switch for a high-voltage interrupting module
03/13/1985EP0134071A2 Pressure-operated switch for a high-voltage interrupting module
03/06/1985EP0133632A1 Improved high-speed, multi-break electrical switch
02/1985
02/12/1985US4499446 Pressure-operated switch for a high-voltage interrupting module
02/12/1985US4499351 High-voltage switch and its use
01/1985
01/15/1985US4494103 For opening a current path
12/1984
12/25/1984US4490707 Explosively-actuated, multi-gap high voltage switch
11/1984
11/28/1984EP0041523B1 Improvements to destructible lead shut off devices by pyrotechnical effect with shunt fuse system
10/1984
10/23/1984US4479105 Pyrotechnic current interrupter
10/17/1984EP0121982A2 Pyrotechnic current interrupter
09/1984
09/18/1984US4472704 Pressure-operated switch for a high-voltage interrupting module
08/1984
08/21/1984US4467307 Pressure-operated switch for a high-voltage interrupting module
07/1984
07/17/1984US4460886 Pressure-operated switch for a current-limiting, high-voltage interrupting module
05/1984
05/29/1984US4451717 Circuit interrupter operating mechanism having a chemical operator with stationary combustion chambers
05/16/1984EP0108468A2 Electrical control module for a current-limiting fuse
04/1984
04/17/1984US4443854 Current sensor responsive to symmetrical and asymmetrical currents and current limiting protector utilizing same
02/1984
02/28/1984US4434415 Electrical control module for a current-limiting fuse
01/1984
01/24/1984US4427963 Brake and operation indicator for a high-voltage switch
11/1983
11/29/1983US4417519 Explosive switch
09/1983
09/20/1983CA1154061A1 Pyrolytic cartridge interruption assistance actuator for puffer breaker
08/1983
08/10/1983EP0085205A1 High voltage circuit breaker and its use
07/1983
07/21/1983WO1983002524A1 High current switching
07/12/1983CA1149847A1 Power circuit breaker with opening and closing mechanisms
06/1983
06/21/1983US4389554 Transformer protective switch
06/08/1983EP0080690A2 Method of extinguishing the arc in high-voltage high-power circuit breakers
05/1983
05/24/1983US4385216 Circuit breaker devices with a pyrotechnically destructible conductor having a fuse system in parallel
04/1983
04/19/1983CA1144963A1 High -voltage, blast-actuated power switch having a collapsible contact
04/12/1983CA1144375A1 Blasting charge for a blast actuated high-voltage power switch
01/1983
01/25/1983US4370531 Electric switch and improved device using same
01/18/1983US4369420 Current limiting fuse with actuable external means
11/1982
11/09/1982US4358648 Power circuit breaker with opening and closing mechanisms
10/1982
10/12/1982US4354072 Pyrolytic cartridge interruption assistance actuator for puffer breaker
09/1982
09/07/1982US4348565 Interchangeable chemically operated circuit breaker
08/1982
08/17/1982US4345127 High-voltage, blast-actuated power switch having a collapsible contact
08/10/1982US4343242 Laser-triggered chemical actuator for high voltage isolation
08/03/1982US4342978 Explosively-actuated switch and current limiting, high voltage fuse using same
07/1982
07/13/1982US4339638 Electrical switch
06/1982
06/08/1982CA1125341A1 High-voltage, blast-actuated power switch having field electrodes
03/1982
03/16/1982US4319527 Blasting charge for a blast actuated high-voltage power switch
02/1982
02/23/1982CA1118822A1 Improved switch and improved high-voltage device using same
01/1982
01/19/1982US4311890 High-voltage, blast-actuated power switch having a deformable bridge conductor
01/05/1982CA1115754A1 Fluid blast circuit interrupter including obstruction-free fluid release facility
12/1981
12/16/1981EP0041523A1 Improvements to destructible lead shut off devices by pyrotechnical effect with shunt fuse system.
10/1981
10/20/1981US4296285 High-voltage, blast-actuated power switch having field electrodes
10/06/1981CA1110324A1 High-voltage "single-shot" circuit-protecting device with fuse-like characteristics and having a chemical operating mechanism
06/1981
06/25/1981WO1981001770A1 Improvements to destructible lead shut off devices by pyrotechnical effect with shunt fuse system
06/23/1981US4275431 High-voltage single-shot circuit-protecting device with fuse-like characteristics and having a chemical operating mechanism
06/16/1981CA1103289A1 Gas propelled operating mechanism for a circuit breaker
06/02/1981US4271341 Circuit breaker operating mechanism
05/1981
05/05/1981US4266258 Current limiting device for high voltage switching mechanisms
02/1981
02/17/1981US4251701 Circuit interrupter
02/17/1981CA1095956A1 Puffer-type circuit interrupter and operating mechanism
02/10/1981US4250365 Current interrupter for fault current limiter and method
09/1980
09/23/1980US4224491 Chemically activated switch
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