Patents
Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232)
02/1986
02/25/1986US4573098 In a power supply system
02/25/1986US4572992 Device for regulating ac current circuit
02/19/1986CN85201037U Zinc-oxide over-voltaqe protective device for motor rotor
02/18/1986US4571656 Electrical circuit for protection against surge overvoltage of transients
02/11/1986CA1200588A1 Device for indicating the positions of printed circuit cards relative to their connectors
02/10/1986CN85100581A Arrester capable of blocking the carrier wave
02/04/1986CA1200276A1 Overvoltage protection device
01/1986
01/28/1986US4567538 Alternating current limiting apparatus
01/15/1986EP0167734A1 Protection circuit for a thysistor
01/08/1986EP0167172A2 Overcurrent protection circuit
01/08/1986EP0166932A1 Protective circuit arrangement
01/07/1986US4563733 Startup circuit for a switched power supply
01/07/1986US4563720 Hybrid AC line transient suppressor
01/02/1986EP0166581A2 Cmos circuit overvoltage protection
12/1985
12/27/1985EP0165351A1 In-rush protected multi-cycle control
12/27/1985EP0165347A1 Protection circuit for a power distribution system
12/18/1985EP0077360B1 Subscriber telephone set provided with protection devices against overvoltages
12/17/1985US4559579 Device for the protection of an electronic component and/or circuit against the disturbances (voltages) generated by an external electromagnetic field
12/11/1985EP0164321A1 Device for limiting an earth fault current in heavy-current systems
12/11/1985EP0164193A1 Hybrid ac line transient suppressor
12/04/1985EP0163349A2 Feed circuit for an electromagnetic contactor
12/04/1985EP0162965A1 Circuit arrangement for the damping of switching-on and switching-off oscillations in a switch gear installation
12/03/1985US4556927 Intrinsically safe signal coupler
11/1985
11/27/1985EP0162228A1 Interactive overvoltage protection device
11/27/1985EP0162147A1 Filter component for communication and control cables to be introduced into shielded enclosures
11/21/1985EP0161628A2 Switchgear
11/19/1985CA1196967A1 Electrosurgical generator safety apparatus
11/12/1985US4553189 Surge protection device
11/12/1985CA1196678A1 Surge arrester with a bypass gap
11/05/1985US4551633 Voltage compensating system
10/1985
10/30/1985EP0159557A2 Overvoltage arrester with a separating device and blinking signalisation
10/15/1985CA1195432A1 Protection circuit for integrated circuit devices
10/08/1985US4546402 Hermetically sealed gas tube surge arrester
10/08/1985US4546401 Two-pole overcurrent protection device
10/02/1985EP0156693A1 Protective device against electrical perturbations between a terminal and a telephone line
10/01/1985US4545006 Electronic chopper circuit and a method of operation
10/01/1985US4544984 Coaxial lightning arresting structure
10/01/1985US4544983 Overvoltage protection device
10/01/1985CA1194539A1 Electric switching surge protection
09/1985
09/25/1985EP0155627A1 Shunting device
09/24/1985CA1194105A1 Open circuit current transformer protection circuit
09/10/1985US4541030 Protective electric house-wiring switch
09/04/1985EP0153492A1 Protection circuit for apparatus controlled by electrical signals
09/03/1985US4539617 AC Power line transient suppressing circuit
08/1985
08/27/1985US4538201 Surge protector
08/21/1985EP0152127A2 Overvoltage peaks supressor device
08/15/1985WO1985003602A1 Transient protection unit
08/14/1985EP0151559A1 Transient protection unit
08/07/1985EP0150911A2 Battery pack with electronic means for limiting current flow for powering an electrical device
08/06/1985US4533970 Series current limiter
08/06/1985CA1191560A1 Short-protected buffer
07/1985
07/24/1985EP0148911A1 Telecommunication system surge protection device
07/23/1985CA1190962A1 Voltage-limiting circuit
07/17/1985EP0148370A1 Fail-safe circuit for electronic circuit in automotive vehicle
07/09/1985US4528608 Electronic current interrupter included in a DC distribution system
06/1985
06/26/1985EP0145774A1 Electrical circuit for switching a multi-phase a.c. supply to a load
06/18/1985US4523429 Cold start surge current limiting system for a hydrazine thruster augmentation heater
06/18/1985CA1189136A1 Active voltage divider
06/11/1985US4523252 Device for eliminating static electricity
06/11/1985US4523249 Alternating current limiting apparatus
06/05/1985EP0143473A1 Electronic contacts and associated devices
05/1985
05/29/1985EP0143038A1 Device for the protection of electronic components in a matrix against short-circuiting
05/28/1985US4520419 Polarity and overload protective circuit for electric consumers
05/28/1985CA1187929A1 Protective module for telephone logic circuits
05/22/1985EP0142128A1 Circuit arrangement for the drainage of overvoltages
05/22/1985EP0141819A1 Short-protected buffer circuit
05/14/1985US4517618 Protection circuitry for high voltage drivers
05/14/1985CA1187137A1 Emission controlled current limiter for use in electric power transmission and distribution
05/08/1985EP0140209A1 Tapped transformer with a non solidly earthened neutral point
05/02/1985EP0139103A2 Overvoltage protection circuit for slic
04/1985
04/30/1985US4513617 Storage tank gauging measuring apparatus
04/23/1985US4513341 Overvoltage protection circuit for power supply
04/23/1985CA1186016A1 Surge protection for signal transmission systems
04/17/1985EP0137396A2 Circuit for protecting an electronic circuit connected to a four-wire side of a repeater hybrid
04/09/1985US4510553 Electromechanical assembly for aligning, discharging, and sequentially engaging conductors of a P.C. board with a backplane
04/09/1985CA1185314A1 Connector for electromagnetic impulse suppression
03/1985
03/28/1985WO1985001404A1 Electronic contacts and associated devices
03/27/1985EP0135440A1 Protective device for low-voltage line feeding elements of high-voltage generators for electrostatic coating, situated in an area containing inflammable mixtures
03/26/1985US4507697 Device for indicating the position of printed circuit cards relative to their connectors
03/26/1985CA1184594A1 Device for the protection of a transmission line against steep fronted atmospheric disturbances
02/1985
02/13/1985EP0067839B1 Voltage controlled transient protection unit
01/1985
01/31/1985WO1985000473A1 Telecommunication system surge protection device
01/29/1985CA1181820A1 Microwave oven energization circuit and components therefor
01/23/1985EP0131896A1 Industrial or domestic overvoltage protective device
01/15/1985US4494163 Electric switching surge protection
01/15/1985US4494064 Direct current inrush limiting circuit
01/09/1985EP0130851A1 Protection apparatus against overvoltages in electrical low-voltage installations or networks
01/03/1985WO1985000079A1 Electrical circuit for switching a multi-phase a.c. supply to a load
01/02/1985EP0130002A2 Electronic grounding system for electrical distribution systems
01/02/1985EP0129965A2 Battery power pack
01/02/1985CA1180373A Line protector and related termination arrangement
01/01/1985US4491816 Transducer for alternating current limiter
12/1984
12/27/1984EP0129035A1 Varistor fuse element
12/25/1984US4490769 Solid-state circuit breaker with current limiting characteristic using a superconducting coil
12/19/1984EP0128344A1 Arrangement of surge arresters for a transformer
12/11/1984US4488199 Protection circuit for capacitive ballast
12/11/1984US4488058 Snubber circuit for use in an uninterruptible power supply
12/11/1984CA1179430A1 Solid state ballast
12/11/1984CA1179403A1 Protection device for high intensity gaseous discharge lamp starting circuit
11/1984
11/27/1984US4485422 In an electronic power system