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| Number | Title | Issue Date |
| 8035947 | Controlled convection thermal disconnector A surge protection device employing a controlled convection thermal disconnector in which a surge protective component, such as a metal oxide varistor, and a thermally responsive device, such as a thermal cut-off, are placed in separate, cross-ventilated chambers. A... | 10/11/2011 |
| 8009401 | Voltage surge protection device comprising selective disconnection means A voltage surge protection device comprising a disconnection device with electric contacts said disconnection device comprising a first connecting electrode electrically connected with a first connecting strip, a second connecting electrode electrically connected wi... | 08/30/2011 |
| RE42319 | Circuit protection device A voltage suppression device for suppressing voltage surges in an electrical circuit, comprised of a voltage sensitive element having a predetermined voltage rating, the voltage sensitive element increasing in temperature as voltage applied across the voltage sensit... | 05/03/2011 |
| 7719816 | Compliant thermal contactor One embodiment of the present invention is a compliant thermal contactor that includes a resilient metal film having a plurality of first thermally conductive, compliant posts disposed in an array on a top side thereof and a plurality of second thermally conductive,... | 05/18/2010 |
| 7660096 | Circuit protection device having thermally coupled MOV overvoltage element and PPTC overcurrent element In a composite electrical circuit protection device, thermal coupling between a planar PPTC element and a planar MOV element is controlled by insertion of a thermal mass material for regulating heat transfer from the MOV element to the PPTC element, such that a PPTC... | 02/09/2010 |
| 7558041 | Overvoltage protection device with dual contact surface thermal disconnector A device (1) for protecting an electrical installation (2) from overvoltages, including at least one protection component (3), and disconnection element (4) capable of ensuring the electrical disconnection of the protection component from... | 07/07/2009 |
| 7505241 | Transient voltage surge suppression device An integrated fuse device (1) includes a varistor stack (11), a thermal fuse (12), and a current fuse (13) within an enclosure (2) having device terminals (3). The varistor stack (11) is connected to the thermal fuse ... | 03/17/2009 |
| 7477503 | Circuit protection device A circuit protection device including a conductor arm releasably connected between a voltage sensitive device and a circuit to be protected. The connector arm is biased to move in a direction generally parallel with a plane defined by a lateral dissection between th... | 01/13/2009 |
| 7466530 | Surge arrester A surge arrester includes an outer electrode and an other electrode. An electrically conductive contact element is spaced apart from the outer electrode by an air gap. The electrically conductive contact element is pretensioned by a spring mechanism that exerts a sp... | 12/16/2008 |
| 7369387 | Apparatus and method for temperature-dependent transient blocking An apparatus and method for temperature-dependent transient blocking employing a transient blocking unit (TBU) that uses at least one depletion mode n-channel device interconnected with at least one depletion mode p-channel device. The interconnection is performed s... | 05/06/2008 |
| 7352552 | Device for protection against voltage surges with mobile electrode A protection device against voltage surges, connected between an electric line and earth, comprises a first connecting electrode, a second connecting electrode and a mobile switching electrode for switching between an operating position, in contact with the first co... | 04/01/2008 |
| 7339458 | Power line communications interface and surge protector There is provided a system that includes an AC power input port for connection to an AC power line, an AC power output port for providing power from the AC power line, an AC power surge suppression circuit for limiting voltage at the AC power output port, a data por... | 03/04/2008 |
| 7333710 | Display including a light source for illuminating input/output terminals A display includes a casing, a terminal module, and a light source. The terminal module is mounted on an exterior of the casing, and includes a terminal unit. The light source is mounted on the casing and the terminal module, and serves to illuminate the terminal un... | 02/19/2008 |
| 7272885 | Method of manufacturing surge arrestor The present invention relates to a method of manufacturing surge arrestors, the method including stacking varistors; and forming a coating of composite material on the stack. Between these steps, also included is placing a bead of flexible, adhesive, and dielectric ... | 09/25/2007 |
| 7245473 | Switchable lightning arrester system The switchable lightning-arrester system has a safety-switchable connector (10), which, for differing power-line features, can include optionally a counter-lever safety connector (14), a slide safety connector (40), a hinged safety connector ( | 07/17/2007 |
| 7242566 | Surge protection device A surge suppression circuit with a thermal cutoff includes a first surge suppressor in series with a first thermal cutoff device between a phase conductor and a neutral conductor. A second surge suppressor in series with a second thermal cutoff device is between the... | 07/10/2007 |
| 7225530 | Connector press A connector press provides for learning a specified connector pressed position, adjusting a force based threshold, and simultaneously pressing multiple connector types into a circuit board. The force based threshold may be adjusted via a slider bar on a user interfa... | 06/05/2007 |
| 7223118 | Electrical terminal for linking two wire pairs The electrical connector assembly includes a first pair of contact members, each comprising a first termination end and a first connection end. A second pair of contact members, each comprising a second termination end and a second connection end, wherein the first ... | 05/29/2007 |
| 7217122 | Candle wick snuffer The candle wick snuffer is mounted on a baseplate which is at the bottom of the candle. The baseplate carries a swing arm which is released when the temperature rises to critical point in the bottom of the candle. The baseplate may also carry a wick retainer to main... | 05/15/2007 |
| 7157875 | Method and system for fail-safe motor operation An electric device includes a motor and a motor drive for commanding a torque generated by the motor. A fault control circuit detects a fault condition associated with the motor drive. Upon detection of the fault condition, the fault control circuit adjusts the torq... | 01/02/2007 |
| 7158041 | Electrical protection device and method for a communication circuit A protection device for a communication circuit that includes a sensor monitoring a protection device parameter and an indication module coupled to the sensor. The indication module generates an indication output as a function of the protection device parameter indi... | 01/02/2007 |
| 7126804 | Spark gap A spark gap for protecting an electrical circuit from voltage surges includes a first electrical circuit trace element having a first end face of defined thickness and length, and a second electrical circuit trace element having a second end face of defined thicknes... | 10/24/2006 |
| 7120001 | Surge voltage protector for use in power transmission networks The invention relates to a surge voltage protector (1) which comprises a discharge current path with at least one varistor block (4a, 4b, 4c). In order to prevent the varistor blocks (4a, 4b, | 10/10/2006 |
| 7117125 | System and method for proactive motor wellness diagnosis based on potential mechanical faults The present invention is directed to a system and method for proactively determining motor wellness arising from potential mechanical faults of the motor. A controller is configured to detect indicia of impending mechanical motor faults. The controller includes a pr... | 10/03/2006 |
| 7113075 | Power supply methods and apparatus A detection circuit includes a first power line, a first signal conditioning module operationally coupled to the first power line, a neutral line (N) operationally coupled to the first signal conditioning module, a second signal conditioning module operationally cou... | 09/26/2006 |
| 7110235 | Arrangement for energy conditioning Circuit arrangement embodiments that use relative groupings of energy pathways that include shielding circuit arrangements that can sustain and condition electrically complementary energy confluences. ... | 09/19/2006 |
| 7058173 | Multi-stage isolation barrier circuitry and method for connection of a telephony device to a telephone line A multi-stage surge protector/isolation barrier is provided for connection between a telephony device and a telephone network. The multi-stage surge protector/isolation barrier includes a first stage and a second stage. The first stage is operative to limit or clamp... | 06/06/2006 |
| 7038896 | Solid state motor protector A solid state motor protector has a first PTC chip (positive temperature coefficient of resistivity) electrically connected in series relation with a second resistor having a generally fixed temperature coefficient of resistivity and mechanically coupled to the firs... | 05/02/2006 |
| 7035073 | Central office surge protector with interacting varistors A central office surge protector having at least one gas tube and at least one varistor. The at least one varistor interacts with the at least one gas tube to lower the impulse breakdown voltage of the gas tube. The at least one gas tube may be a two or a three elem... | 04/25/2006 |
| 7012500 | GFCI with enhanced surge suppression An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of the MOV element rises to a temperature below that at which the MOV wil... | 03/14/2006 |
| 6980647 | Primary telephone line protector with failsafe Disclosed is a module (10) having pins (16-24) connected to respective conductor tower strips (46, 48, 50, 52). Pairs (46, 50 and 48, 52) of the conductor tower strips are spring biased toward each other to capture therebetween res... | 12/27/2005 |
| 6967583 | Systems and methods for indicating events in a power distribution system Disclosed are systems and methods for indicating events at various locations in a power distribution system. ... | 11/22/2005 |
| 6965199 | Coated electrode with enhanced electron emission and ignition characteristics An improved electrode capable of smaller variances and mean breakdown voltage, increased breakdown reliability, smaller electron emission turn-on requirements, and stable electron emissions capable of high current densities include a first electrode material, an adh... | 11/15/2005 |
| 6956248 | Semiconductor device for low voltage protection with low capacitance A semiconductor thyristor device that incorporates buried region breakdown junctions laterally offset from an emitter region. By spacing the buried regions around the emitter region, current carriers emitted from the buried regions are distributed over a large area ... | 10/18/2005 |
| 6954347 | Overvoltage and overcurrent protection system A system for protecting networks from overvoltage and overcurrent conditions. ... | 10/11/2005 |
| 6952336 | Protective element for the dissipation of overvoltages and its use A protective element safely dissipates overvoltages which is comprised of a parallel connection of a varistor and an surge arrester. To reduce the capacity of the protective element, the varistor is fashioned as a disc and arranged between a contact pins and the sur... | 10/04/2005 |
| 6932624 | Modular signal and power connection device An electrical connection box for wall mounting provides a recessed external plug for receiving or transmitting power to electronic components. The connection box is configured to receive a variety of signal connection modules for interconnecting associated audio/vis... | 08/23/2005 |
| 6912112 | Reduced capacitance and capacitive imbalance in surge protection devices Metal oxide varistors (MOVs) are employed in surge protection devices, such as overvoltage protection devices, between signal lines and ground to reduce the capacitance and the capacitive imbalance introduced by the overvoltage protector, thereby improving higher fr... | 06/28/2005 |
| 6831822 | Interference suppressor A suppression device for an electronic appliance having a plug-in device which has at least one plug-in element and is designed for attachment to a housing of the electronic appliance, with a capacitor having at least two capacitor plates being provided in order to ... | 12/14/2004 |
| 6809917 | Safety device monitoring heat in electric connection installations A safety device for monitoring heat in electrical installations includes a first connecting element in thermal relationship with an electrical connection to be monitored, a second element designed to be connected to ground, and an electrical connecting structure tha... | 10/26/2004 |
