With Latch- Or Trip-reset Means Patents (Class 335/166)
  • Patent number: 9620301
    Abstract: A contact assembly is for an electrical switching apparatus. The electrical switching apparatus includes a housing, a cradle member disposed in the housing, an operating handle extending into the housing, and an operating mechanism coupled to the cradle member. The contact assembly includes: a stationary contact structured to be disposed in the housing; a movable arm including a movable contact structured to engage the stationary contact, the movable arm being structured move between a CLOSED position and an EXTENDED OPEN position; and an extension apparatus structured to be disposed on the housing. When the movable arm is in the EXTENDED OPEN position, the extension apparatus maintains the movable arm in the EXTENDED OPEN position.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: April 11, 2017
    Assignee: EATON CORPORATION
    Inventor: Jeffrey Scott Gibson
  • Patent number: 9466451
    Abstract: A trip and reset assembly is provided. The trip and reset assembly includes a trip and reset actuator mounting and a trip and reset actuator. The trip and reset actuator is structured to move the plunger from the first position to the second position. The trip and reset actuator mounting includes a body defining a trip and reset actuator pivot coupling first component. The trip and reset actuator includes an elongated body with a pivot coupling second component, an actuator interface, a trip bar interface and a reset interface. The trip and reset actuator body is movably coupled to the trip and reset actuator mounting and is movable between a first position, wherein the trip bar interface engages the trip bar, and a second position, wherein the actuator interface engages the plunger.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: October 11, 2016
    Assignee: EATON CORPORATION
    Inventors: Harry James Carlino, Lloyd Allen Maloney, Martha Suryani Bucchi, Mark Anthony Janusek
  • Patent number: 9178486
    Abstract: A GFCI compatible system and method for activating relay controlled lines having a filter circuit between neutral and ground is described herein. Specifically the disclosure teaches a GFCI compatible system for reducing CMN. A CMN Suppressor can comprise a hot line, a neutral line, and a ground line. The first ends of the hot line, the neutral line, and the ground line can be connected to a GFCI protected hot node, a GFCI protected neutral node, and an electrical ground. The second ends of the hotline, the neutral line, and the ground line can be connected to a CMN sensitive device hot line, a CMN sensitive device neutral line, and a CMN sensitive device ground line. The system can further comprise a high pass filter, a hot line relay contact, a neutral line relay contact, a hot line relay, and a neutral line power relay.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: November 3, 2015
    Inventors: Bahram Mechanic, Tooraj Faridi
  • Patent number: 9177743
    Abstract: Disclosed is an electromagnetic switching device. The electromagnetic switching device includes a case defining an outer appearance; a fixed contact point assembly received in the case and including a fixed contact point; a coil terminal assembly detachably coupled to one side of the fixed contact point assembly and including a coil; and a shaft assembly detachably inserted into the coil terminal assembly, wherein the shaft assembly includes a shaft movable in the coil terminal assembly.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: November 3, 2015
    Assignee: LSIS Co., Ltd.
    Inventor: Sang Jin Lee
  • Patent number: 9123480
    Abstract: A drive for a switching device having a contact system with a fixed contact and a moving contact, includes a force initiation element for initiating a drive force, an actuator for actuating the moving contact to close or open the contact system and a transmission disposed between the force initiation element and the actuator. The transmission allows both transferring the contact system from the closed to the open state and transferring the contact system from the open to the closed state to be triggered by a drive force in the same direction, making the drive cost-effective and compact.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: September 1, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Einschenk, Karsten Freundt, Unni Suresh
  • Patent number: 8692633
    Abstract: A switch is provided with a reset function including a heart cam portion which extends from a locked position to a side where a lock pin operation end biases, and a lock release passage IV which is blocked off by a lock pin retention protrusion during being retained. The lock pin retention protrusion is moved by biasing force of the lock pin operation end so that the locked state is released by opening the lock release passage IV. This embodiment can decrease wear between the lock pin and the member for retaining the lock pin.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: April 8, 2014
    Assignee: Omron Corporation
    Inventor: Toshihiro Naruo
  • Patent number: 8558646
    Abstract: A disconnect mechanism for a power receptacle, which includes a disconnect block, a locking member slidably coupled to the disconnect block, and an electromagnetic device moveably coupled to the locking member. The disconnect block includes two side arms extending outwards. A pressing plate is disposed above the disconnect block, and a disconnect spring is disposed above the pressing plate. The moveable contact arms of the main switch of the receptacle are disposed between the pressing plate and the disconnect block, and the pressing plate pushes the moveable contact arms when the main switch is being opened when a current leakage is detected. The receptacle also includes an auxiliary switch disposed because the disconnect block and the circuit board.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: October 15, 2013
    Assignee: Bingham McCutchen LLP
    Inventor: Cheng Li Li
  • Publication number: 20130171847
    Abstract: A power outlet may comprise an enclosure with at least one plug jack, a reset button comprising at least one integrally formed extension latch arm, the extension latch arm comprising at least one positioning pin, and at least one baffle configured to selectively block at least a portion of the plug jack, the baffle comprising an outer wall comprising a face, a pin slit, and a leg. The extension latch arm positioning pin is configured to selectively press against the outer wall face when the extension latch arm is in an upward position. The extension latch arm positioning pin is configured to selectively enter the outer wall pin slit when the extension latch arm is in a downward position.
    Type: Application
    Filed: February 21, 2013
    Publication date: July 4, 2013
    Inventor: Huadao Huang
  • Patent number: 8471654
    Abstract: A flux shifter for a circuit protection device including a trip mechanism includes a trip arm and a pin assembly. The pin assembly includes a pin, a biasing member positioned proximate to the pin, and a latch coupled to the pin and to the biasing member. The pin assembly is configured to enable the trip arm to rotate into an engagement with the trip mechanism when the flux shifter enters a trip state and to prevent the trip arm from rotating into the engagement with the trip mechanism when the flux shifter is in one of an operational state and a reset state.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: June 25, 2013
    Assignee: General Electric Company
    Inventors: Umashankar Shanmugaraj, Lars Pommerencke, Amit Bose
  • Publication number: 20130113579
    Abstract: A remote-control resetting device for an electrical safety device having a trip mechanism with a handle is provided. The resetting device includes: a housing; a solenoid having a movable core, the movable core being attached to an operating member for operating the handle of the electrical safety device; and a printed circuit board having a solenoid control circuit mounted thereon, the solenoid control circuit being electrically connected to the solenoid for controlling the movement of the core. The printed circuit board and the solenoid are arranged axially in the housing with the operating, member located at one end of the solenoid and the printed circuit board located at an opposite end of the solenoid.
    Type: Application
    Filed: April 18, 2011
    Publication date: May 9, 2013
    Applicant: EATON INDUSTRIES MANUFACTURING GMBH
    Inventors: Jean-Christophe Barnas, Jean-Marc Mottier, Daniel Thevenin
  • Publication number: 20130106541
    Abstract: A switch is provided with a reset function including a heart cam portion which extends from a locked position to a side where a lock pin operation end biases, and a lock release passage IV which is blocked off by a lock pin retention protrusion during being retained. The lock pin retention protrusion is moved by biasing force of the lock pin operation end so that the locked state is released by opening the lock release passage IV. This embodiment can decrease wear between the lock pin and the member for retaining the lock pin.
    Type: Application
    Filed: October 17, 2012
    Publication date: May 2, 2013
    Applicant: OMRON CORPORATION
    Inventor: OMRON CORPORATION
  • Patent number: 8390405
    Abstract: A circuit breaker comprises a latching plate rotatably coupled to a moveable plate, and tensile type latching springs, each latching spring having two ends fixed to the latching plate and the moveable plate, respectively. Time taken for a moveable contact to be lifted up from a contact time point between the moveable contact and a fixed contact may be shortened, and thus a time duration for which an accident current flows may be reduced. Accordingly, the amount of energy applied to the circuit breaker may be reduced, and a breaking function of the circuit breaker may be enhanced. Furthermore, since a contact pressure between the moveable contact and the fixed contact has a constant change, a reliability on a conductive state of the moveable contact and the fixed contact may be enhanced.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: March 5, 2013
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Seung Pil Shin
  • Patent number: 8350648
    Abstract: A power control apparatus in the form of a standard, toggle, wall-mounted light switch for remote actuation of an electrical load or local manual override. A switch housing supports and retains a latching relay that includes power terminals, a switching terminal for remote actuation by a control signal, and a manual override. A switch lever extends from the body of the switch housing for manual actuation to override the state of the relay. The switch lever engages the manual override of the latching relay upon manual actuation by a person. A centering structure maintains the switch lever in a centered position to allow unimpeded movement of the manual override. The latching relay can be remotely actuated by a signal at its switching terminal to switch a power load connected to the power terminals on or off, or the relay can be manually overridden by actuation of the switch lever.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: January 8, 2013
    Inventor: Gus Cueto
  • Patent number: 8314669
    Abstract: An electromechanical connection system having a current supply device connectable to a current source through current supply contacts. The current supply device has with switching magnets on a magnet carriage. A current collection device has a release magnet and can be electrically connected to a load is connectable to the current supply device. A safety magnet is restored to a rest position by a retaining magnet or a ferromagnetic retaining part if the magnet carriage remains in a live state even if the current collection device is removed to effect short circuit. A non-conducting short-circuit part movably arranged in the current supply device between two short-circuit line parts, holds the safety magnet a distance from the short-circuit line under normal conditions. The non-conducting short-circuit part connects the short-circuit line parts if the magnet carriage does not return responsive to removal of the current collection device.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: November 20, 2012
    Assignee: Rosenberger Hochfrequenztechnik GmbH & Co. KG
    Inventor: Axel Botsch
  • Patent number: 8222982
    Abstract: An overload relay trip mechanism includes a housing, a reset button, a leaf spring, a test button, a coil spring, and an actuator. The reset button can be actuated from a normal position to a reset position to cause the leaf spring to transition from a first position to a second position, which causes a reset actuator-engaging element to move the actuator from a tripped position to a closed position. The test button can be actuated from a normal position to a test-stop position to cause a first test actuator-engaging element to move a moveable contact from an electrically connected position to an electrically disconnected position. The test button can further be moved from the test-stop position to the test-trip position to cause a second test actuator-engaging element to move the actuator from the closed position to the tripped position.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: July 17, 2012
    Assignee: Schneider Electric USA, Inc.
    Inventors: Jackie C. Sullivan, Richard Karl Weiler, Stanley H. Edwards, Jr.
  • Patent number: 8183962
    Abstract: A leakage protective plug comprises a case and electric contacts. A protective cap is fixed on the top of the case and includes a reset button protective cap and a test button protective cap. The reset button protective cap is interiorly provided with a reset button connected with a push rod which in order penetrates an electric contact upper panel, an upper spring, an electric contact lower panel and a lower spring. The electric contact upper panel is provided at a right side thereof with a locking member linked with a brake connecting rod which is linked with a brake plate. The brake plate is located at a lower right side of the locking member. Below the brake plate are disposed an electromagnet pole shoe, an electromagnet coil, and an electromagnet core. The test button protective cap is provided with a test button having a test electric contact.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: May 22, 2012
    Inventors: Keqing Zhang, Junxin Li
  • Patent number: 8164403
    Abstract: A disconnect mechanism for a power receptacle, which includes a disconnect block, a locking member slidably coupled to the disconnect block, and an electromagnetic device moveably coupled to the locking member. The disconnect block includes two side arms extending outwards. A pressing plate is disposed above the disconnect block, and a disconnect spring is disposed above the pressing plate. The moveable contact arms of the main switch of the receptacle are disposed between the pressing plate and the disconnect block, and the pressing plate pushes the moveable contact arms when the main switch is being opened when a current leakage is detected. The receptacle also includes an auxiliary switch disposed because the disconnect block and the circuit board.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: April 24, 2012
    Assignee: Bingham McCutchen LLP
    Inventor: Cheng-li Li
  • Publication number: 20110156847
    Abstract: An overload relay trip mechanism includes a housing, a reset button, a leaf spring, a test button, a coil spring, and an actuator. The reset button can be actuated from a normal position to a reset position to cause the leaf spring to transition from a first position to a second position, which causes a reset actuator-engaging element to move the actuator from a tripped position to a closed position. The test button can be actuated from a normal position to a test-stop position to cause a first test actuator-engaging element to move a moveable contact from an electrically connected position to an electrically disconnected position. The test button can further be moved from the test-stop position to the test-trip position to cause a second test actuator-engaging element to move the actuator from the closed position to the tripped position.
    Type: Application
    Filed: December 28, 2009
    Publication date: June 30, 2011
    Applicant: Schneider Electric USA, Inc.
    Inventors: Jackie C. Sullivan, Richard Karl Weiler, Stanley H. Edwards, JR.
  • Patent number: 7864005
    Abstract: A ground fault circuit interrupter device is described.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: January 4, 2011
    Assignee: Cooper Technologies Company
    Inventors: Erik J. Gouhl, Gregory G. Moreinis, Gunter A. Gallas
  • Patent number: 7683745
    Abstract: A ground fault circuit interrupter device is described.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: March 23, 2010
    Assignee: Cooper Technologies Company
    Inventors: Erik J. Gouhl, Gregory G. Moreinis, Gunter A. Gallas
  • Patent number: 7586394
    Abstract: A lever arm assembly is provided for a circuit breaker trip actuator reset assembly including a cradle assembly pivotably coupled to the circuit breaker pole shaft, a reset lever pivotably coupled to the circuit breaker housing, and a trip actuator including an actuating element, which moves the reset lever in response to a trip condition. The lever arm assembly includes at least one linking element including a first end pivotably coupled to the cradle assembly, a second end, a pivot, and a deflection assembly having a deflection member. When the cradle assembly moves from a first position toward a second position, it moves the linking element, thereby moving the deflection member into engagement with the reset lever. This pivots the reset lever to reset the trip actuator. After the trip actuator has been reset, the deflection assembly is deflectable to accommodate excess motion of the cradle assembly.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: September 8, 2009
    Assignee: Eaton Corporation
    Inventors: Yuri Spitsberg, Nathan J. Weister
  • Patent number: 7564329
    Abstract: A ground fault circuit interrupter device is described.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: July 21, 2009
    Assignee: Cooper Technologies Company
    Inventors: Gregory G. Moreinis, Gunter A. Gallas
  • Patent number: 7538647
    Abstract: A ground fault circuit interrupter device is described.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: May 26, 2009
    Assignee: Cooper Technologies Company
    Inventor: Howard S. Leopold
  • Patent number: 7498910
    Abstract: A ground fault circuit interrupter device is described.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: March 3, 2009
    Assignee: Cooper Technologies Company
    Inventors: Gunter A. Gallas, Erik J. Gouhl, Howard S. Leopold, Gregory G. Moreinis
  • Publication number: 20090015359
    Abstract: A lever arm assembly is provided for a circuit breaker trip actuator reset assembly including a cradle assembly pivotably coupled to the circuit breaker pole shaft, a reset lever pivotably coupled to the circuit breaker housing, and a trip actuator including an actuating element, which moves the reset lever in response to a trip condition. The lever arm assembly includes at least one linking element including a first end pivotably coupled to the cradle assembly, a second end, a pivot, and a deflection assembly having a deflection member. When the cradle assembly moves from a first position toward a second position, it moves the linking element, thereby moving the deflection member into engagement with the reset lever. This pivots the reset lever to reset the trip actuator. After the trip actuator has been reset, the deflection assembly is deflectable to accommodate excess motion of the cradle assembly.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Inventors: Yuri Spitsberg, Nathan J. Weister
  • Publication number: 20080246565
    Abstract: A trip actuator reset assembly for a circuit breaker includes a cradle assembly, a reset lever, a trip actuator, and a rigid element. The cradle assembly is pivotably coupled to the circuit breaker pole shaft, and includes a number of springs. A pivot pivotably couples the reset lever to the circuit breaker housing. In response to a trip condition, an actuating element of the trip actuator moves a first end of the reset lever. The rigid element is pivotably coupled to the housing proximate a second end of the reset lever. To reset the trip actuator, a guide member guides the cradle assembly into engagement with the rigid element which pivots the reset lever. The first end of the reset lever then resets the trip actuator. After reset, if the cradle assembly continues to move, then the springs accommodate the additional motion.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 9, 2008
    Inventors: Yuri C. Spitsberg, Nathan J. Weister
  • Patent number: 7170375
    Abstract: A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: January 30, 2007
    Assignee: General Protecht Group Inc.
    Inventors: Wusheng Chen, Yong Dai, Xiaoyong Li
  • Patent number: 7132911
    Abstract: A breaker includes a housing (10) having two terminals (11, 12), two bars (17, 18) electrically coupled to the terminals (11, 12), an arm (30) supported in the housing (10) and movable to engage with the bars (17, 18) to electrically couple the terminals (11, 12) together. A control device (4) may control the arm (30) to engage with the bars (17, 18), and includes a lever (50) to maintain the arm (30) in engagement with the bars (17, 18). A spring (33) may bias the arm (30) away from the bars (17, 18), and another spring (53) may be engaged with the lever (50) to bias and disengage the lever (50) from the arm (30).
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: November 7, 2006
    Inventors: Rong-Lin G Chung, Tgo-Ing Lin
  • Patent number: 6867672
    Abstract: A switching device includes a latching mechanism and is cheap to produce and easy to assemble. To this end, the construction is essentially formed from a three-part modular unit including metallic material, and has a spring which supports the back-latching of the latching mechanism, and forces which extend essentially in one plane in the latching mechanism.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: March 15, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventor: Winfried Vierling
  • Patent number: 6853279
    Abstract: A trip unit includes a housing, a rotary plunger mounted in the housing and a pivotal trip bar also mounted therein. The trip bar latches the plunger in an on position, releases the plunger to a tripped position and re-latches the plunger. A set of springs biases the plunger to the tripped position. A rotary trip lever is pivotally mounted in the housing. A trip solenoid includes a linear plunger, which resets the solenoid when retracted, and which engages and rotates the trip lever when extended, in order to rotate the trip bar and release the rotary plunger. The rotary plunger engages the rotary trip lever when reset and rotates the same in an opposite direction, in order to retract the linear plunger and reset the solenoid. During that reset operation, the rotary plunger also cams the trip bar, in order to re-latch the rotary plunger in the on position.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: February 8, 2005
    Assignee: Eaton Corporation
    Inventors: Michael P. Puskar, Thomas A. Whitaker, William M. Randal, Harry J. Carlino
  • Patent number: 6850135
    Abstract: A trip unit includes a housing, a rotary plunger, and a pivotally mounted trip bar, which latches the plunger in an on position and releases the plunger to a tripped position. A first plunger portion is biased outside the housing in a tripped position by a spring mechanism. A pivotally mounted rotary trip lever includes an elastic arm. A second plunger portion is inside the housing in a reset position and engages the elastic arm. When a trip solenoid is energized, its linear plunger rotates the rotary trip lever, in order to engage and rotate the trip bar and release the rotary plunger. The rotary trip lever rotates in an opposite direction in response to the rotary plunger reset position and engages the trip solenoid linear plunger, in order to reset the same. The elastic arm flexes after the linear plunger is reset and accommodates overtravel of the rotary plunger.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: February 1, 2005
    Assignee: Gaton Corporation
    Inventors: Michael P. Puskar, Thomas A. Whitaker, William M. Randal
  • Publication number: 20030206085
    Abstract: This invention relates to a circuit interrupting device having a trip button for disconnecting a load from a source of electrical power and a reset button for resetting the device after it has tripped. When the device is operating in its reset state, a source of electrical power is connected to a load through a set of contacts located within the device. The contacts are held closed by the spring loaded reset button which holds captive and urges a latch plate to move up to close normally open contacts. In the preferred mechanical trip mechanism, depressing the trip button causes the latch plate to move forward and be released from the reset button. The latch plate, upon being released from the reset button moves down to allow the contacts, which are biased to be normally open, to assume their normally open position. At this time, pressing the reset button initiates an electrical cycle which causes the normally open contacts to close only if the device is operating properly and there is no fault on the line.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Inventors: Frantz Germain, Stephen Stewart
  • Patent number: 6586693
    Abstract: A latching mechanism for a circuit breaker operating mechanism includes a primary latch with a cross bar and a first pair of elongated leg members flexibly mounted to the cross bar. A secondary latch is pivotally mountable to the circuit breaker operating mechanism, with the first pair of elongated leg members being in removable engagement with the secondary latch. In one embodiment, the cross bar is flexible and deflects at a point along a longitudinal axis thereof. In another embodiment, the cross bar is flexible and twists about its longitudinal axis.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: July 1, 2003
    Assignee: General Electric Company
    Inventor: Roger Neil Castonguay
  • Publication number: 20020130743
    Abstract: A circuit breaker modular device reset allows modular devices to be reset in a confined space with a minimal operating stroke. Modular devices include actuators such as flux shift units and accessories such as shunt trip devices and undervoltage devices. The reset device includes a support, a first leg and a second leg connected to the support via a trunk. A head is located at the distal end of the first leg. The modular device includes a reset tab. An interface used to reset an actuated modular device projects from the second leg and engages the reset tab during a modular device reset stroke.
    Type: Application
    Filed: March 13, 2001
    Publication date: September 19, 2002
    Inventors: Roger Neil Castonguay, James Lawrence Rosen, Girish Mruthunjaya Hassan
  • Patent number: 6403909
    Abstract: A circuit breaker assembly includes first and second rotary contact assemblies mountable to a base member, a circuit breaker operating mechanism mounted to the first rotary contact assembly, and a trip bar in mechanical communication with the first rotary contact assembly and the circuit breaker operating mechanism. The rotary contact assemblies each include rotors rotatable about axes therethrough and movable contact arms pivotally mounted within the rotors. The circuit breaker operating mechanism serves to position the rotors to separate movable contacts thereon from fixed contacts. A trip override device includes spring links operably connected via springs to each of the rotors of the rotary contact assemblies and the trip bar. The trip bar comprises trip levers protruding radially therefrom and being in mechanical communication with the rotary contact assemblies.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: June 11, 2002
    Assignee: General Electric Company
    Inventors: Randall Green, Roger Castonguay, Dave Christensen, Girish Hassan
  • Patent number: 6313445
    Abstract: An electric appliance control comprising an electromagnet; an electrical switch assembly; a ferromagnetic section movable with a contact of the switch assembly towards the electromagnet; and a user actuated member adapted to move the ferromagnetic section and the contact towards the electromagnet. When the electromagnet is energized and the ferromagnetic section and contact are moved by the user actuated member to an actuated position, the electromagnet can retain the contact at the actuated position by magnetically holding the ferromagnetic section at the actuated position.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: November 6, 2001
    Assignee: HP Intellectual Corp.
    Inventors: Paul F. Garneau, Charles Z. Krasznai, James P. Sandor
  • Patent number: 6307455
    Abstract: Circuit breaker mechanism comprising a manually controlled part 40a acted upon by a knob 42 and a part 40c with an electromagnetic overcurrent tripping device 41 and a trip spring 65. The parts 40b, 40c act on a common lever 43 through a connecting rod 62 and a control lever 66 respectively. The part 40b is coupled to a lever 64 onto which the spring 65 exerts a torque, and also applies an opening torque to lever 66.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: October 23, 2001
    Assignee: Schneider Electric Industries SA
    Inventors: Gerard Dolo, Dominique Millot, Frédéric Noirot
  • Patent number: 6121863
    Abstract: A latching relay having a manual reset function. The latching relay includes a coil for generating a magnetic force. An armature is provided which is dragged by the magnetic force to change into a first switching state of the armature. An elastic device which is moved following the movement of the armature caused by the magnetic force, is adapted to receive an external force to switch the armature back into a second switching state, wherein the armature can maintain one of the switching states without the magnetic force and the external force existing. A reset device is provided to receive the external force to move the elastic device, thereby switching the armature into the second switching state. A fixed support fixes in place the coil, armature and elastic device and provides a magnetic loop to strengthen the magnetic force.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: September 19, 2000
    Assignee: Winbond Electronics Corp.
    Inventor: Bar-Chung Hwang
  • Patent number: 6100807
    Abstract: A hardwired, fail-safe rack protection monitor utilizes electromechanical relays to respond to the detection by condition sensors of abnormal or alarm conditions (such as smoke, temperature, wind or water) that might adversely affect or damage equipment being protected. When the monitor is reset, the monitor is in a detection mode with first and second alarm relay coils energized. If one of the condition sensors detects an abnormal condition, the first alarm relay coil will be de-energized, but the second alarm relay coil will remain energized. This results in both a visual and an audible alarm being activated. If a second alarm condition is detected by another one of the condition sensors while the first condition sensor is still detecting the first alarm condition, both the first alarm relay coil and the second alarm relay coil will be de-energized. With both the first and second alarm relay coils de-energized, both a visual and an audible alarm will be activated.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: August 8, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Stanley G. Orr
  • Patent number: 5990434
    Abstract: A switching mechanism for a circuit breaker includes a frame; a latch rotatably supported on the frame; a holder rotatably supported on the frame and having a movable contact; a handle lever rockably supported on the frame by lever shafts; a toggle link formed of first and second links rotationally connected by a toggle shaft; and a switching spring. A free end of the first link is rotatably connected to the latch, and a free end of the second link is rotatably connected to the holder. The first and second links generally overlap each other to reduce the movement range of the toggle link to miniaturize a switching mechanism. The switching spring is situated between the toggle shaft and the handle lever at a side opposite to a switching handle with respect to the lever shaft.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: November 23, 1999
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Takumi Fujihira, Tatunori Takahashi, Naoshi Uchida, Katunori Kuboyama, Hiroaki Tosaka, Kentaro Toyama, Koji Nomura, Isamu Nagahiro
  • Patent number: 5886603
    Abstract: A detent mechanism comprising a support member having a fixed seating member comprising opposite sides; a first spring for exerting a first spring force, disposed between one side of the fixed seating member and a first sliding member, further comprising a second spring member exerting a second spring force less than said first spring force, disposed between the other side of said fixed seating member and a second sliding member, whereby the forces of the springs are directed to operate on said first and second sliding members in opposite directions. A push button can apply an external force to the first sliding member to move it from a first position relative to the fixed seating member to a second position against the action of said first spring force. A detent mechanism connects the first and second sliding members when the first sliding member is in its second position and the second slidable member is in a first position.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: March 23, 1999
    Assignee: Power Breaker PLC
    Inventor: Simon Powell
  • Patent number: 5430422
    Abstract: A circuit breaker includes a housing; separable electrical contacts; an operating mechanism having a handle arm for operation and also having ON, trip, OFF and reset positions; a trip mechanism for tripping the operating mechanism to the trip position in response to a predetermined electrical condition of the separable contacts; and a blocking mechanism for blocking movement of the operating mechanism, beyond the OFF position and toward the reset position, when the operating mechanism is moved from the ON to the OFF position. The circuit breaker may also have a latch mechanism for latching the operating mechanism when it is not in the trip position, a reset mechanism for resetting the latch, and a cradle mechanism which is latched by the latch. The blocking mechanism may be pivotally connected to a knee-pin of the operating mechanism and the cradle may have a cross-pin cooperating with the blocking mechanism.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: July 4, 1995
    Assignee: Eaton Corporation
    Inventor: Perry R. Gibson
  • Patent number: 5290982
    Abstract: A pair of lock links straddling and pivoted on the same pin as the latchable cradle of a circuit breaker follow the toggle device of the breaker either by riding on the toggle knee pin or through a pin which bears against the edges of the toggle arms. The lock links have extensions which engage the handle yoke to prevent the handle from being moved to the off position when the circuit breaker contacts are welded closed causing the toggle device to remain erected.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: March 1, 1994
    Assignee: Westinghouse Electric Corp.
    Inventors: Henry R. Beck, Charles W. Pipich
  • Patent number: 5224590
    Abstract: A circuit breaker having a contact movable between open and closed positions, includes a closing spring assembly having a closing spring and first and second brackets. The closing spring assembly is chargeable when in a reset position in which the first bracket is hooked by a first hook. The closing spring is charged, manually or electrically, with support of the second bracket being transferred to a second hook. The closing spring is discharged to close the circuit breaker, with the closing spring assembly moving from the reset position to a discharged position in the process. The closing spring assembly is then moved as an integral unit, back to the reset position, with the closing spring again being charged, enabling the circuit breaker to immediately reclose in the event of a trip due to a transient condition. An improved breaker operating mechanism and power operated charging mechanism, are also disclosed.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: July 6, 1993
    Assignee: Westinghouse Electric Corp.
    Inventors: Stanislaw A. Milianowicz, Edward J. Klimek, William Q. Aglietti, Henry J. Remic, Jr., Mark L. Lotzmann
  • Patent number: 5213206
    Abstract: A pair of lock links straddling and pivoted on the same pin as the latchable cradle of a circuit breaker follow the toggle device of the breaker either by riding on the toggle knee pin or through a pin which bears against the edges of the toggle arms. The lock links have extensions which engage the handle yoke to prevent the handle from being moved to the off position when the circuit breaker contacts are welded closed causing the toggle device to remain erected.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: May 25, 1993
    Assignee: Westinghouse Electric Corp.
    Inventors: Henry R. Beck, Charles W. Pipich
  • Patent number: 5200724
    Abstract: Apparatus is provided for an electrical circuit breaker for preventing the handle thereof from being moved to the OFF position when the electrical contacts of the circuit breaker are welded closed. This apparatus mechanically limits the travel of the operating handle so that it may not be moved to the OFF position when the electrical contacts are closed. This restrictor apparatus as it is called is mechanically connected to, but out of direct contact with the handle arm of the circuit breaker. The mechanical linkage between the operating handle and the contact arm of the circuit breaker includes a projection. During the foregoing condition, the projection will interact with a crossbar assembly for the contact arm of the circuit breaker.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: April 6, 1993
    Assignee: Westinghouse Electric Corp.
    Inventors: Lance Gula, Perry R. Gibson
  • Patent number: 5184717
    Abstract: The handle of a circuit breaker is blocked from movement to the off positiion, when the contacts are welded closed, thereby preventing rotation of the common cross-bar on which contact arms carrying the movable contacts are mounted, by an interlock which includes radial extensions on the arms of a pivoted handle yoke which radially engage projections on the cross-bar.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: February 9, 1993
    Assignee: Westinghouse Electric Corp.
    Inventors: Yu W. Chou, Henry K. Pruszynski
  • Patent number: 5165532
    Abstract: A circuit breaker includes an interlock which prevents movement of the handle to the off position when the contacts are welded closed. The interlock includes a pair of floating links which jam between slots in arms of the yoke of a spring powered operating mechanism which carries the handle, and recesses in the rotatable cross-bar carrying the movable contact arms. The recesses are offset from the rotational axis of cross-bar so that an attempt to move the switch to the off position generates a moment which will break open lightly welded contacts.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: November 24, 1992
    Assignee: Westinghouse Electric Corp.
    Inventors: Charles W. Pipich, William E. Beatty, Jr.
  • Patent number: 5075661
    Abstract: A locking device (6) which is provided in particular for vacuum contactors prevents an unintentional closing of the contact due to arbitrary mechanical influence as long as the electromagnetic actuator (1) is not excited. This takes place by means of a blocking lever (10), which is adjustably attached to a bearing block (7) between both of the parallel-mounted coils (3) of the actuator (1). A particularly rapid response of the blocking lever (10) is achieved by means of an acute-angled blade that sticks out, which is designed as an extension of the midsection (17) of the U- or C-shaped principal body of the blocking lever (10).
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: December 24, 1991
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Kaletta, Ibrahim Traore, Reinhard Zeuke
  • Patent number: 5003139
    Abstract: An accessory module (104) for use with a circuit breaker (10) is configured for mounting to the breaker, and has a rotor (142) which follows the movement of the circuit breaker blade (24) in the breaker by means of a coupling member (118) passing through a passage (110) in the circuit breaker wall. A portion of the rotor is configured as a cam (162) operating a switch (152) in the module, the switch thus giving a reliable indication of the position of the breaker blade. The breaker is preferably of the type which has a trip lever (50) carried on the breaker blade and mounted for slight movement thereon, and the rotor is preferably coupled to the trip lever. A solenoid (148) within the accessory module is disposed to rotate the rotor when energized, this rotation being coupled to trip the breaker to provide for remote tripping. Since the trip lever is carried with the breaker blade, the blade position is monitored by the switch.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: March 26, 1991
    Assignee: Square D Company
    Inventors: Thomas A. Edds, Willard J. Rezac, Thomas O'Carroll