With Lockout Means Patents (Class 361/72)
  • Patent number: 11328885
    Abstract: A method for performing a low energy pulse testing in a power distribution network that causes contacts to close and then open in about one fundamental frequency cycle of current flow time and close on a voltage waveform that produces symmetrical fault current. The method includes energizing a magnetic actuator to move the actuator against the bias of a spring to move a movable contact towards a fixed contact. The method also includes de-energizing the actuator when the movable contact makes contact with the fixed contact so as to allow the spring to move the movable contact away from the fixed contact so that the amount of time that the current conducts is about one fundamental frequency cycle of the current, where energizing the magnetic actuator occurs when an applied voltage on the switch assembly is at a peak of the voltage wave so that the current is symmetric.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: May 10, 2022
    Assignee: S&C Electric Company
    Inventors: David G Porter, Stephen E Williams, Peter J Meyer, Martin T Bishop, Thomas J Dyer, Andrew B Berman, Joseph W Milton, Lauren Abramczyk
  • Patent number: 9753077
    Abstract: An abnormal connection detection method is used between a power supplier and a power receiver. The power supplier and the power receiver are connected through a cable. The cable includes positive and negative power transmission lines. The abnormal connection detection method includes: providing an output voltage from the power supplier, wherein the output voltage is lower than a predetermined voltage threshold; detecting, according to the output voltage, whether an output current generated by the power supplier is higher than a predetermined current threshold; and when the output current is higher than the predetermined current threshold, determining that an abnormal connection occurs between the power supplier and the power receiver.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: September 5, 2017
    Assignee: RICHTECK TECHNOLOGY CORPORATION
    Inventors: Yi-Min Shiu, Yi-Shan Chu, Shih-Jen Yang
  • Patent number: 9142969
    Abstract: A system to store and to transmit electrical power includes at least one storage system, at least one bidirectional converter, and at least one load coupled to a network, wherein the load is adapted to both, receive electrical power from the network and supply electrical power to the network. A first storage system is used to store electrical power of a power source. The first storage system is connected to a first bidirectional converter by a DC power transmission system. The first bidirectional converter is connected to an AC network and the AC network is connected to a first load.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: September 22, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Henrik Stiesdal, Erik Wolf
  • Patent number: 9129767
    Abstract: Exemplary embodiments are directed to a switching device for an electric circuit including at least one contact movable between a closed position in which it is coupled to a corresponding fixed contact and an open position in which it is spaced away from said corresponding fixed contact. The switching device including at least one locking device configured for being actuated between a rest configuration in which said at least one movable contact is free to move and an operative configuration in which it locks said at least one movable contact in the open position. The locking device is configured for outputting one or more electrical signals which are indicative of at least one of the rest configuration, the operative configuration, and an under actuation condition wherein the locking device itself is moving between said rest and operative configurations.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 8, 2015
    Assignee: ABB S.P.A.
    Inventors: Gustavo Brignoli, Stefano Besana
  • Patent number: 8941960
    Abstract: A switching apparatus for use in conjunction with a fuse, the switching apparatus including a circuit interrupter having a pair of separable contacts, a sensor for sensing a line fault, and an actuator for moving the contacts to an open state when a line fault is sensed, and wherein the switching apparatus is arranged such that the contacts always return to a closed state.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: January 27, 2015
    Assignee: Siemens Ltd.
    Inventor: David Russell Murray
  • Patent number: 8879228
    Abstract: A method and electronic safety device including a switching element for disconnecting and/or limiting the current consumption of an electrical load, wherein control commands for the switching element are received through a remote control interface, and wherein the switching element is only switched on or off when the thermal load on the switching element is within a permissible range such that there is no longer any need to provide a dedicated relay in electrical systems for remote-controlled switching operations.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: November 4, 2014
    Assignees: Siemens Aktiengesellschaft, Siemens AG Oesterreich
    Inventors: Dieter Hublitz, Alwin Hummel, Anton Schneider, Harald Schweigert
  • Patent number: 8861154
    Abstract: A device for interrupting the flow of electrical power in an electrical distribution system is provided. The device includes a sensor operably coupled to the electrical distribution system. A switching mechanism is coupled to the electrical distribution system, the switching mechanism movable between an open position and a closed position. A controller operably coupled to the sensor and the switching mechanism, the controller having a processor that is responsive to executable computer instructions when executed on the processor incrementing a first counter in a first mode of operation and a second counter in a second mode of operation. Wherein the processor is further responsive to executable computer instructions for switching from the first mode to the second mode in response to a signal from the sensor.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: October 14, 2014
    Assignee: Consolidated Edison Company of New York, Inc.
    Inventor: John Witte
  • Patent number: 8830645
    Abstract: A method, device, and system for mitigating the effect of a power spike on a protective device. The device can receive an input signal and determine whether the input signal exceeds a threshold value. If so, the device simultaneously starts an initial time period and starts a latch time period, where the latch time period is greater than the initial time period. During the initial time period, the device replaces the input signal with a set value signal. After the initial time period ends and during the remainder of the latch time period, the device prevents the input signal from being replaced by the set value signal. If, during the remainder of the latch time period, the input signal exceeds the threshold value, a trip signal may be generated by a protective device.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: September 9, 2014
    Assignee: Cooper Technologies Company
    Inventor: Ljubomir A. Kojovic
  • Patent number: 8693153
    Abstract: A device for interrupting the flow of electrical power in an electrical distribution system is provided. The device includes a sensor operably coupled to the electrical distribution system. A switching mechanism is coupled to the electrical distribution system, the switching mechanism movable between an open position and a closed position. A controller operably coupled to the sensor and the switching mechanism, the controller having a processor that is responsive to executable computer instructions when executed on the processor incrementing a first counter in a first mode of operation and a second counter in a second mode of operation. Wherein the processor is further responsive to executable computer instructions for switching from the first mode to the second mode in response to a signal from the sensor.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 8, 2014
    Assignee: Consolidated Edison Company of New York, Inc.
    Inventor: John Witte
  • Patent number: 8604630
    Abstract: A power distribution system is disclosed. The power distribution system may have a generator, a first load interruption device associated with the generator, and a load powered by the generator. The power distribution system may also have a second load interruption device associated with the load, and a generator controller. The generator controller may be configured to control the generator, determine existence of a fault condition associated with electric service between the generator and the load, and selectively activate the second load interruption device based on the determination. The generator controller may be further configured to determine if activation of the second load interruption device isolated the fault condition, and selectively activate the first load interruption device when activation of the second load interruption device fails to isolate the fault condition.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: December 10, 2013
    Assignee: Caterpillar Inc.
    Inventor: Keith Ronald Folken
  • Patent number: 8599035
    Abstract: Equipment module indicator handle apparatus and methods are provided for displaying indications of the status conditions of equipment module circuitry using a light-conductive handle body that includes at least one handle leg at least partially composed of light conductive material and configured to transmit emitted light from a proximate end of the indicator handle toward a distal end of the indicator handle to visibly display a status condition of the module circuitry to a user on a surface of the indicator handle that is spaced apart from the wall of a chassis of the module.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 3, 2013
    Assignee: Dell Products L.P.
    Inventors: Richard A. Crisp, David W. Williams
  • Patent number: 8599526
    Abstract: Exemplary embodiments are directed to engineering of protection lockout functionality in a Substation Automation (SA) system. The system includes a breaker IED having protection-zone related intelligence in a lockout function block lockout function instances are assigned to respective protection zones, and are specified for each protection function which protection-zone(s) it shall trip and reset after lockout. Hence for switch yard configurations and power networks where a protection function trips multiple breakers by using several bay control or protection devices a more efficient implementation of lockout functionality is possible.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 3, 2013
    Assignee: ABB Technology AG
    Inventor: Wolfgang Wimmer
  • Patent number: 8532265
    Abstract: A modular form factor power module system with monitoring and control functions is disclosed. The power module system is configured to power, monitor and/or control telecommunications equipment at the circuit level.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: September 10, 2013
    Assignee: Telect Inc.
    Inventors: Randolph Stanton Wright, Cindy Antoinette Dainio, Larry O'Neal Reeder, Phung M. Tran
  • Patent number: 8508897
    Abstract: Upon detecting a fault, a circuit testing closer is operable to open contacts to isolate the fault. Next, the circuit testing closer tests the faulted phase to determine whether the fault has cleared. The circuit testing closer may employ one or more dynamic thresholds to determine the existence of a fault.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: August 13, 2013
    Assignee: S&C Electric Company
    Inventors: Alejandro Montenegro, Raymond P. O'Leary
  • Patent number: 8482139
    Abstract: A flash memory card and methods of manufacturing same are disclosed. The card includes a semiconductor package fabricated to receive a single-sided or double-sided lid. A surface of the semiconductor package may be formed with holes, trenches and/or pockmarks. After the holes, trenches and/or pockmarks are formed, a lid may be attached to the package surface in an injection molding process. During the injection molding process, the molten plastic flows into the holes, trenches and/or pockmarks to interconnect with the surface of the semiconductor package. Thus, when the molten plastic hardens, the holes, trenches and/or pockmarks ensure that the lid remains firmly attached to semiconductor package.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: July 9, 2013
    Assignee: SanDisk Technologies Inc.
    Inventors: Che-Jung Chang, Chin-Tien Chiu, Cheeman Yu, Hem Takiar, Jack Chang Chien, Ning Liu
  • Patent number: 8334738
    Abstract: A fault interrupting and reclosing device includes a circuit interrupter coupled to an actuator. The actuator includes at least one force generating element for generating an opening force for opening the circuit interrupter and for generating a restoring force to close the circuit interrupter. The device further includes a latch to engage the actuator to hold the contacts open once opened. In a preferred arrangement, the device is provided with an automatic mode of operation including a reclose process and a non-reclosing mode of operation. The device also preferably includes a method of determining the end-of-life of a vacuum interrupter monitors characteristics and/or parameters of a fault current or vacuum interrupter operation to predict a percent of life consumed with each fault current interruption operation. A cumulative percent of life consumed may also be determined, and an end-of-life may be predicted based upon the cumulative percent of life consumed.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: December 18, 2012
    Assignee: S&C Electric Company
    Inventors: Richard G. Smith, Jason R. Bogusz, Michael G. Ennis, Gary W. Hardesty, Thomas E. Kovanko, Richard P. Mikosz, Andrew D. Pfister, Roy T. Swanson, Keith W. Benson, IV
  • Patent number: 8139360
    Abstract: A multi-specification fixing module used at a motherboard and a cooler. The multi-specification fixing module includes a plurality of the fixing sheet and a specification adjusting base plate. Each of the fixing sheets has a fixing hole. The specification adjusting base plate includes a plurality of adjusting portions at a periphery of the specification adjusting base plate. Each of the adjusting portions has an adjusting guiding rail group and an adjusting portion hole. The positions of the fixing sheets are adjusted according to the size of the cooler body to install the fixing sheets in the adjusting guiding rail groups, and the installing fixing accessories are connectedly fixed at the motherboard holes via the fixing holes and the adjusting portion holes to fix and install the cooler body above the socket.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: March 20, 2012
    Assignee: ASUSTeK Computer Inc.
    Inventor: Chao-Chung Wu
  • Patent number: 8139333
    Abstract: A short circuit protection circuit which readily recovers a relay drive circuit to an output operation state after a short circuit is cancelled while preventing the relay drive circuit from being damaged by a short circuit. The relay drive circuit outputs a drive current to a load in accordance with a first control signal. A short circuit detection circuit detects the occurrence of a short circuit at an output side of the relay drive circuit and suspends output operation of the relay drive circuit when a short circuit occurs. Further, the short circuit detection circuit intermittently transmits a recovery signal to the relay drive circuit in a certain time interval after a predetermined time elapses from when the short circuit occurs to recover the output operation of the relay drive circuit. The time interval is gradually increased whenever the recovery signal is transmitted.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: March 20, 2012
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Takao Imai, Hiroshi Mori, Jun Ito, Hisao Niwa
  • Patent number: 8000913
    Abstract: A system, method and computer program product for processing utility data of a power grid is provided. In one embodiment, the system includes a datamart comprised of a plurality of physical databases storing utility data, a plurality of applications comprising an automated meter application configured to process power usage data from a plurality of automated meters, a power outage application configured to identify a location of a power outage, and a power restoration application configured to identify a location of a power restoration. The system may include an analysis engine comprising a plurality of analysis objects with each analysis object configured to process data to provide a specific analysis, wherein said analysis engine is accessible via one or more of the plurality of applications, and the system may include a report module configured to receive an output from the analysis engine and to output a report.
    Type: Grant
    Filed: January 17, 2009
    Date of Patent: August 16, 2011
    Assignee: Current Communications Services, LLC
    Inventors: David G. Kreiss, Daniel S. Brancaccio
  • Patent number: 8000069
    Abstract: A circuit testing closer is capable of closing a power distribution circuit and interrupting the resulting current at the next current zero. Upon detecting a fault, the circuit testing closer is operable to open contacts to isolate the fault. Next, the circuit testing closer tests the faulted line to determine whether the fault has cleared. The circuit testing closer may employ one or more dynamic thresholds to determine the existence of a fault.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: August 16, 2011
    Assignee: S&C Electric Company
    Inventors: Alejandro Montenegro, Raymond P. O'Leary
  • Patent number: 7791493
    Abstract: An on-vehicle device has a receiving antenna for receiving a radio signal from a mobile device, a receiving circuit for returning an electric signal obtained by conversion by the receiving antenna to the original state, a control unit for determining whether a received signal from the receiving circuit is correct or incorrect, a driving circuit that is driven in response to a driving signal from the control unit and supplies antenna current to a vehicle antenna, and a detector for detecting whether the vehicle antenna operates normally. A detection signal of the detector is fed back to the control unit through the receiving circuit, and the failure determination of the vehicle antenna is performed.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: September 7, 2010
    Assignee: Panasonic Corporation
    Inventor: Masashi Ikeura
  • Patent number: 7768755
    Abstract: The present invention is an overvoltage protection and automatic re-strike circuit for an electronic ballast. The electronic ballast has an inverter, a shut-down circuit, a safety circuit, a monitoring circuit, and an overvoltage protection circuit. The inverter provides an appropriate alternating current power supply to operate the lamp. The shut-down, safety, monitoring, and overvoltage protection circuits are coupled to the inverter and provide the overvoltage protection and automatic re-striking functions. During an overvoltage condition, the overvoltage protection circuit will temporarily disable the inverter. Subsequent to the overvoltage condition, the overvoltage protection circuit permits the inverter to attempt to re-ignite the lamp. After a predetermined number of unsuccessful re-ignition attempts, the safety circuit will permanently disable the inverter to avoid damage to the ballast.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: August 3, 2010
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Wei Xiong, Danny Pugh, Christopher Radzinski
  • Patent number: 7692903
    Abstract: An apparatus and method for controlling the operation of a solenoid in a circuit breaker includes a control circuit configured to receive an activation signal in response to a predetermined condition. The control circuit, in response to said activation signal, provides a first energizing signal to the solenoid for a first predetermined period, and cuts off the first energizing signal for a second predetermined period. The control circuit further provides a second energizing signal to the solenoid for a third predetermined period.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 6, 2010
    Assignee: General Electric Company
    Inventors: Sean Dwyer, Henry Hall Mason, Jr., Cecil Rivers, Jr., Sohaib Uddin Shaikh, Craig B. Williams
  • Patent number: 7615861
    Abstract: A flash memory card and methods of manufacturing same are disclosed. The card includes a semiconductor package fabricated to receive a single-sided or double-sided lid. A surface of the semiconductor package may be formed with holes, trenches and/or pockmarks. After the holes, trenches and/or pockmarks are formed, a lid may be attached to the package surface in an injection molding process. During the injection molding process, the molten plastic flows into the holes, trenches and/or pockmarks to interconnect with the surface of the semiconductor package. Thus, when the molten plastic hardens, the holes, trenches and/or pockmarks ensure that the lid remains firmly attached to semiconductor package.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: November 10, 2009
    Assignee: SanDisk Corporation
    Inventors: Che-Jung Chang, Chin-Tien Chiu, Cheemen Yu, Hem Takiar, Jack Chang Chien, Ning Liu
  • Patent number: 7580773
    Abstract: A handling robot system, including a table having a placement surface for placing articles; an article dispersing mechanism for dispersing the articles placed on the placement surface of the table across the placement surface; a vision sensor for detecting each of the articles dispersed on the placement surface of the table; and a robot operating, based on article detection data from the vision sensor, to hold the articles one by one.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: August 25, 2009
    Assignee: Fanuc Ltd
    Inventors: Kazuo Hariki, Masaru Oda
  • Patent number: 7545245
    Abstract: A manual opening device is for an electrical switching apparatus, such as a synchronous circuit breaker, including a housing having an opening, a plurality of pole mechanisms each comprising separable contacts, and at least one operating mechanism including a number of actuators adapted to open and close the separable contacts. The operating mechanism is supported by the housing and includes a corresponding pole shaft. The manual opening device comprises an operating handle, a cam assembly, and a drive assembly. A first end of the operating handle protrudes through the opening of the housing and the second end is coupled to the cam assembly. The drive assembly couples the cam assembly to the corresponding pole shaft of the operating mechanism and cooperates with the corresponding pole shaft and actuators to simultaneously open the separable contacts when the operating handle is moved from a first position to a second position.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: June 9, 2009
    Assignee: Eaton Corporation
    Inventors: Xin Zhou, Brad R. Leccia, Paul J. Rollmann
  • Publication number: 20090080130
    Abstract: Overcurrent is prevented in an automotive vehicle based on sensing at least one operating condition. An overcurrent threshold is determined based on characteristics of the load and on the sensed condition. If the sensed flow of current exceeds the determined overcurrent threshold, the flow of current to the load is interrupted. The sensed condition may be, for example, ambient temperature.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Applicant: LEAR CORPORATION
    Inventor: David Anthony Hein
  • Patent number: 7469940
    Abstract: A method and apparatus for protecting a discharge lamp lighting device from damage due to mis-wiring of a source of electrical power to the discharge lamp lighting device. The protection apparatus includes a detector, a comparer and an inhibitor. The detector samples at least one monitor point associated with the discharge lamp lighting device to obtain at least one detection voltage. The comparer compares the at least one detection voltage with a reference voltage. The inhibitor inhibits an operation of the discharge lamp lighting device when the comparer determines that a mis-wiring of the source of electrical power to the discharge lamp lighting device exists.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: December 30, 2008
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Yiyoung Tony Sun, Takeshi Goriki, Kenichi Fukuda
  • Publication number: 20080309437
    Abstract: A fault interrupting and reclosing device includes a circuit interrupter coupled to an actuator. The actuator includes at least one force generating element for generating an opening force for opening the circuit interrupter and for generating a restoring force to close the circuit interrupter. The device further includes a latch to engage the actuator to hold the contacts open once opened. In a preferred arrangement, the device is provided with an automatic mode of operation including a reclose process and a non-reclosing mode of operation. The device also preferably includes a method of determining the end-of-life of a vacuum interrupter monitors characteristics and/or parameters of a fault current or vacuum interrupter operation to predict a percent of life consumed with each fault current interruption operation. A cumulative percent of life consumed may also be determined, and an end-of-life may be predicted based upon the cumulative percent of life consumed.
    Type: Application
    Filed: November 17, 2006
    Publication date: December 18, 2008
    Applicant: S & C Electric Co.
    Inventors: Richard G. Smith, Jason R. Bogusz, Michael G. Ennis, Gary W. Hardesty, Thomas E. Kovanko, Richard P. Mikosz, Andrew D. Pfister, Roy T. Swanson, Keith W. Benson IV
  • Patent number: 7403837
    Abstract: A portable device (1) with at least one optical output device (2) for displaying at least process data of a machine, a robot or a technical process, with at least one input device (3) for at least intervening in the operating functions of the device (1) and/or for operating the machine or robot or technical process, and having a safety switch device (12) for preventing the output of undesirable, unintended control commands for the machine, robot or technical process. The output devices (2) and input devices (3) are connected to a control device (14), which is accommodated in a housing (7) that is unbreakable as far as possible and at least one communication interface (17) is provided to an external control device disposed at a distance away. Several of the input and output devices (2, 3) are functionally combined by means of a touch-sensitive screen (4) in the form of a touch-screen (5) and the touch-sensitive screen (4) extends across substantial regions of the surface of the housing (7).
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: July 22, 2008
    Assignee: KEBA AG
    Inventors: Dieter Graiger, Hans-Peter Wintersteiger, Martin Danner
  • Patent number: 7365951
    Abstract: A method and apparatus for protecting a discharge lamp lighting device from damage due to mis-wiring of a source of electrical power to the discharge lamp lighting device. The protection apparatus includes a detector, a comparer and an inhibitor. The detector samples at least one monitor point associated with the discharge lamp lighting device to obtain at least one detection voltage. The comparer compares the at least one detection voltage with a reference voltage. The inhibitor inhibits an operation of the discharge lamp lighting device when the comparer determines that a mis-wiring of the source of electrical power to the discharge lamp lighting device exists.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 29, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yiyoung Tony Sun, Takeshi Goriki, Kenichi Fukuda
  • Patent number: 7333308
    Abstract: A control arrangement is operable to control an electrical relay to supply current. The arrangement comprises current supply means and control means operable to provide a relay make signal and a relay break signal to control the state of the relay to respectively make and break a connection to the current supply means. Further control means are operable to enable or disable the current supply means. A first delay means operates to delay enabling the current supply means until after a relay make signal has been provided, to allow the relay to make the connection before current supply commences. Excess current is also sensed and controlled by a form of pulse-width modulation.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: February 19, 2008
    Inventor: Bruce Stanley Gunton
  • Patent number: 7215521
    Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reset lockout portion that does not test the circuit interrupter are provided. A resettable circuit interrupting device, such as a GFCI device that includes a reset lockout portion that prevents the reestablishing of electrical continuity if the circuit interrupting portion is non-operational. More specifically, there is disclosed a circuit interrupting portion which prevents the armature of a solenoid from moving if the solenoid overheats.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: May 8, 2007
    Assignee: Leviton Manufacturing Co., Inc.
    Inventor: Richard Bernstein
  • Patent number: 7068481
    Abstract: The present invention is directed to a protective device that includes a plurality of line terminals configured to be connected to an electrical distribution system, and a plurality of load terminals configured to be connected to at least one load. The device includes a fault detection circuit coupled to the plurality of line terminals and the plurality of load terminals. The fault detection circuit is configured to detect at least one fault condition. A power interruption circuit coupled to the fault detection circuit, the power interruption circuit including a set of movable contacts configured to decouple the plurality of line terminals from the plurality of load terminals in response to the fault detection circuit detecting the at least one fault condition. A reset mechanism is coupled to the power interruption circuit and configured to actuate the movable contacts to re-couple the plurality of line terminals to the plurality of load terminals. A lock-out mechanism is coupled to the reset mechanism.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: June 27, 2006
    Assignee: Pass & Seymour, Inc.
    Inventors: Dejan Radosavljevic, Thomas N. Packard, Bruce F. Macbeth
  • Patent number: 7068483
    Abstract: A circuit breaker lockout device is provided that prevents the breaker contacts from being closed when the circuit breaker is in a lockout state in response to a lockout signal and permits the breaker contacts to be closed when the circuit breaker is an enable state in response to an enable signal.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: June 27, 2006
    Assignee: General Electric Company
    Inventors: Thomas F. Papallo, Carmine G. Giglio
  • Patent number: 6992872
    Abstract: A method of protecting multiple feeder circuits fed from a shared electrical distribution system is provided. The method includes providing a bypass line, providing bypass switches in the bypass line, providing a fault lockout protection controller coupled to the bypass line. The bypass line bypasses separable circuit breaker contacts in each of the feeder circuits between a load side and a line side of the electrical distribution system. The bypass switches selectively couple each of the feeder circuits to the bypass line. The method further includes controlling the fault lockout protection controller to detect the existence of a fault condition on the load side of the feeder circuit selectively coupled to the bypass line prior to closing the separable circuit breaker contacts of the feeder circuit; and controlling the fault lockout protection controller to prevent closure of the separable circuit breaker contacts upon detection of the fault condition.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: January 31, 2006
    Assignee: General Electric Company
    Inventors: Robert A. Morris, Edgar Yee
  • Patent number: 6982856
    Abstract: As disclosed in U.S. Pat. No. 6,246,558; there is disclosed resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout portion that prevents the reestablishing of electrical continuity if the circuit interrupting portion is non-operational. There is here disclosed a circuit interrupting portion which prevents the armature of a solenoid from moving if the circuit interrupting portion is not operational.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: January 3, 2006
    Assignee: Leviton Manufacturing Co., Inc.
    Inventor: Richard Bernstein
  • Patent number: 6972936
    Abstract: Fault abatement circuit breaker for providing protection of critical loads. The circuit breaker provides both arc fault protection and fault lockout protection in one integrated circuit breaker. The fault lockout protection reduces the risk of short circuit damage by predicting and preventing the event. The arc fault protection trips the circuit breaker when arcing is sensed. The integrated circuit thus provides for a minimum of short circuit damage, thereby maximizing process and/or equipment up time.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: December 6, 2005
    Inventor: Robert Allan Morris
  • Patent number: 6917856
    Abstract: It is constructed so as to detect a joint movement position of a robot arm by a position detector and a joint movement speed is calculated from change amounts of the joint movement position and elapsed time and is compared with an allowable movement speed and unlocking and locking of a brake are controlled so that the joint movement speed of an arm at the time of brake unlocking becomes within a constant value even when a shape, an attitude and a load condition of the robot arm vary. Therefore, movement work of the arm by the brake unlocking can be performed alone and a robot with high safety can be obtained.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: July 12, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kenji Murata
  • Patent number: 6917502
    Abstract: An improved circuit supplies electrical power to a vehicle accessory load, such as a load that is powered through a vehicle accessory load connector or cigarette lighter plug. The circuit utilizes battery voltage comparator and timer switching circuitry to interrupt the supply of power to the accessory load if the engine-driven alternator fails to charge the storage battery for at least a predefined time interval (i.e., when the vehicle engine is not running), and to automatically re-establish electrical power supply to the load when battery charging resumes (i.e., when engine operation resumes).
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: July 12, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Donald John Enzinna, Stephan Michael Vetter
  • Patent number: 6892115
    Abstract: A method of monitoring and controlling a power distribution system is provided. The power distribution system includes a plurality of circuit breakers, a plurality of node electronic units, and wherein each associated circuit breaker is electrically coupled with each respective node electronic unit. The system also includes at least one digital network, and at least one central control processing unit (CCPU) wherein each CCPU includes a first power system global information set, and each CCPU is communicatively coupled to the plurality of node electronic units. The method includes transmitting at least one digital message from each node electronic unit to each CCPU over a respective network, determining an operational state of the power distribution system from the digital message, and transmitting at least one multicast message from each CCPU to each node electronic unit such that the circuit breakers are operable from each CCPU.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: May 10, 2005
    Assignee: General Electric Company
    Inventors: Ertugrul Berkcan, Daniel White Sexton, Scott Charles Evans, Marc Robert Pearlman, Emad Andarawis Andarawis, Austars Raymond Schnore, Jr., Charles Scott Sealing, William James Premerlani, Changting Wang, Terry Michael Topka
  • Patent number: 6867958
    Abstract: A system and methods that enable a restoration scheme for power distribution systems that is independent of power distribution system component configuration, the number of power distribution system components, and component settings are provided. In a power distribution system, a number of intelligent reclosers having restoration control modules are deployed that execute a restoration scheme. The intelligent reclosers constantly poll cooperating power distribution lines to determine changes in current or voltage provided by the power distribution lines. In the event of a power distribution system fault, the reclosers act in accordance to a predefined restoration scheme to reanimate the unaffected portions of the failing power distribution system.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: March 15, 2005
    Assignee: ABB Technology AG
    Inventors: Graeme N. McClure, Jeffrey L. McElray, Sr., Robert A. Smith, Carl LaPlace, David G. Hart, William M. Egolf
  • Patent number: 6850395
    Abstract: The invention relates to a method for automatically re-closing when there is a short-circuit in a line section of an electric energy supply line, whereby said section is defined by one switch respectively which comprises an allocated short-circuit detection device. According to the inventive method and after the switches have been released by a short-circuit, a re-closing instruction that is produced on the one end of the line section trips the switch on the other end. The aim of the invention is to carry out said method in such a way that the switch is treated with care as far as possible. The switch on the other end of the line section is tripped after a predetermined time delay provided that the short-circuit in the line section terminates during the time delay.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: February 1, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Claus, Volker Rissland, Henry Zimmer
  • Patent number: 6829123
    Abstract: A protective arrangement in a device that protects the device and personnel or users of the device when undesirable conditions develop within the device. The protective arrangement de-couples a power source from the device, prevents access to the device that may harm a user or aggravate the undesirable condition, and actuate an alarm when the undesirable condition occurs.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: December 7, 2004
    Assignees: HP Intellectual Corporation, Technology Research Corporation
    Inventors: Raymond H. Legatti, Brian Guptill, Les Campbell
  • Patent number: 6735534
    Abstract: A recloser trips on one phase for single-phase only fault conditions, or all phases for multi-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then a timer is started and subsequently decremented. If the timer finishes counting down while the fault is still present, then it is determined if any of the other two phases are timing a fault. If so, then all three phases are tripped; otherwise, only the faulted phase is tripped.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 11, 2004
    Assignee: ABB Technology AG
    Inventors: Graeme N. McClure, Carl J. LaPlace, David G. Hart, William M. Egolf
  • Patent number: 6735533
    Abstract: A recloser trips on one phase for single-phase only fault conditions, two phases for two-phase fault conditions, or all three phases for three-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then a timer is started and subsequently decremented. If the timer finishes counting down while the fault is still present, then it is determined if any of the other two phases are timing a fault. If so, then those phases having a fault are tripped. Thus, only the faulted phase(s) is (are) tripped.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 11, 2004
    Assignee: ABB Technology AG
    Inventors: Graeme N. McClure, Carl J. LaPlace, David G. Hart, William M. Egolf
  • Patent number: 6707655
    Abstract: A recloser is adaptively controlled so that it will operate in a manner responsive to prevailing conditions such as time of day, day of week, and/or load current. A protection setting group is stored in a memory accessible by the recloser controller, and contains a set of instructions for controlling the recloser based on the prevailing conditions. The prevailing conditions are continuously monitored, and the control of the recloser is based on the prevailing conditions and the protection setting group.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: March 16, 2004
    Assignee: ABB Technology AG
    Inventors: Jeffrey L. McElray, Sr., Carl J. LaPlace, David G. Hart, William M. Egolf, Graeme N. McClure
  • Publication number: 20030231447
    Abstract: A circuit breaker lockout device is provided that prevents the breaker contacts from being closed when the circuit breaker is in a lockout state in response to a lockout signal and permits the breaker contacts to be closed when the circuit breaker is an enable state in response to an enable signal.
    Type: Application
    Filed: February 25, 2003
    Publication date: December 18, 2003
    Applicant: General Electric Company
    Inventors: Thomas F. Papallo, Carmine G. Giglio
  • Patent number: 6657837
    Abstract: Transformers (14) inject test voltage signals of know frequency to each phase of the load side of an electrical distribution circuit (15). Processor (32) waits for a delay period to allow transient effects of the injected signals to settle, and then accepts the sampled test current signals provided by current transformers (12) through conditioning circuit (16). This process is repeated by injecting test voltages at different frequencies, which are selected by processor (32) based on stored instructions. Processor (32) uses the sampled signals to determine a representative current for the load side of the distribution circuit (15) and then compares the representative current with a predetermined current threshold value stored in non-volatile memory (40). If the current is above this threshold, processor (32) provides a lockout signal to the fault lockout device (48) and fault lockout flag (50).
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: December 2, 2003
    Assignee: General Electric Company
    Inventors: Robert A. Morris, Hemant K. Mody, Thomas F. Papallo, James I. Smith, Nataniel de Jesus Barbosa Vicente
  • Publication number: 20030184935
    Abstract: An improved circuit supplies electrical power to a vehicle accessory load, such as a load that is powered through a vehicle accessory load connector or cigarette lighter plug. The circuit utilizes battery voltage comparator and timer switching circuitry to interrupt the supply of power to the accessory load if the engine-driven alternator fails to charge the storage battery for at least a predefined time interval (i.e., when the vehicle engine is not running), and to automatically re-establish electrical power supply to the load when battery charging resumes (i.e., when engine operation resumes).
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Inventors: Donald John Enzinna, Stephan Michael Vetter