| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 335021000 | With latch or trip means | 49 |
| 20090039988 | MOLDED CASE CIRCUIT BREAKER WITH CONTACT ON MECHANISM - A molded case circuit breaker having a contact on mechanism which can perform a trip operation and automatically rotates the handle to the on position or a position toward the on position if the handle is manipulated to move to the off (or reset) position in a state that the contacts are melt-adhered to each other, the contact on mechanism, including: a contact on plate which is vertically movable by being guided according to the operation of the switching mechanism, a trip bar that drives the restricting unit to a releasing position, a lever connected to the handle and that provides a pivot point of the handle, a lever pin fixed to the lever, for driving the restricting unit to the releasing position by pressing the trip bar, and thereby operating the switching mechanism to the trip position, and a trip spring providing an elastic driving force for enabling the switching mechanism to operate to the trip position when the restricting unit is moved to the releasing position. | 02-12-2009 |
| 20100085135 | Switching device unit for switiching at least two operating states - A switching device unit is disclosed for switching at least two operating states of at least one consumer to an at least two-phase electrical supply system by way of switching elements. At least one embodiment of the invention specifies a switching device unit which has as simple a construction as possible and is as cost-effective and compact as possible. For this purpose, the switching device unit contains circuits for operational switching of the consumer, for implementing the tripping function for protection against overload and short circuits, wherein these circuits are integrated in such a way that the switching device unit, in particular in terms of its function as a compact reversing starter, can have a standardized width in order to be installed in a space-saving manner on a top-hat rail in a switchgear cabinet and in order to be operated. | 04-08-2010 |
| 20100164658 | TRIP MECHANISM FOR CIRCUIT BREAKER - Disclosed is a trip mechanism for a circuit breaker, capable of maintaining a constant characteristic of a normal trip operation in spite of changes in installation angles of the circuit breaker including a horizontal installation, a perpendicular installation and an inclination installation, the trip mechanism including, a coil configured to generate a magnetic absorption force due to a fault current on a circuit, a stationary core fixed to a lower portion of the coil within the coil, a movable core movable down to the stationary core within the coil by the magnetic absorption force generated from the coil, and a trip lever rotatably to connected to the movable core so as to be pulled by the movable core when the movable core is downwardly moved and configured to trigger the switching mechanism such that the movable contactor is moved to an open circuit position. | 07-01-2010 |
| 20110148552 | SOLENOID ACTUATOR WITH AN INTEGRATED MECHANICAL LOCKING AND UNLOCKING FIXTURE - Electric Solenoid Actuators are used in a wide range of industries that require the combination of electrical, electromagnetic and mechanical apparatus and systems to activate or de-activate a device, automatically, or semi-automatically. Solenoid actuators are used in a variety of applications ranging from valve controls, electrical switch controls or contactors, or other electrical, electronic, hydraulic, pneumatic, mechanical systems and/or combinations thereof. Electric solenoid actuators are preferred from pneumatic and hydraulic actuators for many practical reasons. There are disadvantages with the use of electrical solenoids and this may include the limitation of motion as well as the limited force which is dictated by the strength of the electromagnet developed by the armature. The solenoid actuator of this disclosure operates on either AC or DC power supply depending on the coil and armature design which is dictated by the force required for specific applications and the type of power supply available. | 06-23-2011 |
| 20130076461 | Collapsible Mechanism for Circuit Breakers - A device can be installed inside a circuit breaker assembly to reduce friction between an armature and a cradle, which in turn, allows the circuit breaker to trip without requiring significant force. Such device can be a collapsible mechanism configured to swivel about its hinged connection to the armature. | 03-28-2013 |
| 20130200963 | AUXILIARY TRIPPING DEVICE FOR AN ELECTRICAL SWITCHING DEVICE AND ELECTRICAL SWITCHING DEVICE - An auxiliary tripping device is configured to interrupt a flow of current in the event of an undervoltage and/or a current pulse in a subordinate power circuit. The tripping device includes a spring element, a storage element which can be moved between a tensioned and a detensioned position, a trip element for tripping a trip mechanism of the electrical switching device and an activation element, the storage element being embodied in the tensioned position, when activated by way of the activation element, to emit the stored mechanical energy to the trip element. In an embodiment, a movably supported blocking element is provided, which is connected functionally in a first position to the storage element when the storage element is in the tensioned position, so that the storage element is held by the blocking element and in a second position the blocking element releases the storage element to perform a movement. | 08-08-2013 |
| 20140375400 | TRIP UNIT AND METHOD FOR PRODUCING ONE SUCH TRIP DEVICE - The trip unit ( | 12-25-2014 |
| 20150035628 | CIRCUIT BREAKER TRIP BLOCKING APPARATUS, SYSTEMS, AND METHODS OF OPERATION - Embodiments disclose a trip blocking apparatus of a circuit breaker exhibiting no trip at OFF functionality. The trip blocking apparatus effectively blocks tripping of a trip bar when the circuit breaker is in the OFF configuration. The trip blocking apparatus has a trip blocking arm and a blocking lever. A first projection of the blocking lever is configured to contact a handle arm, and a second projection is configured to interfere with the trip blocking arm to block tripping of the trip bar responsive to handle arm motion. Actuator resetting and blocking apparatus and trip blocking assemblies and methods of operating the trip blocking assembly are provided, as are other aspects. | 02-05-2015 |
| 20150070114 | Remote Operated Circuit Breaker With Manual Reset - A circuit breaker having a movable contact arm for opening and closing the circuit which is controlled separately by a circuit breaker mechanism for circuit protection and by a switch lever mechanism which does not require actuation of the circuit breaker mechanism to function. The switch lever may also be activated remotely by a remote actuator, for example, a solenoid. A manual reset mechanism is provided so that, actuation of which, when power has been lost to the remote actuator when the remote actuator is in the off position, moves the remote actuator to the on position, thereby resetting the circuit to the closed state. | 03-12-2015 |
| 20150077199 | DOUBLE BREAK CONTACT SYSTEM FOR MOULDED CASE CIRCUIT BREAKERS - The invention relates to an improved double break contact system for use in moulded case circuit breakers. The system comprises shaft means ( | 03-19-2015 |
| 20150130567 | OVERCURRENT RELAY AND MOLDED CASE CIRCUIT BREAKER WITH THE SAME - An overcurrent relay and a molded case circuit breaker (MCCB) including the same are provided. The MCCB includes: a switching mechanism unit; an overcurrent relay; a trip mechanism, wherein the overcurrent relay includes: a case body; a case cover coupled to the case body; a control unit installed within the case body and having an electronic circuit board; and a plurality of setting knobs disposed to be spaced apart from one another on the electronic circuit board, having an indication unit exposed to the outside to indicate a current reference value and a trip operation time marked on the case cover, respectively, and configured to be rotatable, respectively. | 05-14-2015 |
| 20150137916 | CIRCUIT BREAKER WITH INPUT LOAD INCREASING MEANS - A circuit breaker comprises a switching mechanism that including a linkage with a drive joint that is mounted to be rotatable around a rotation axis by a driving force, wherein, during the ON operation, an axis formed by the rotation axis and the point of action of the driving force makes an acute angle with the line of action of the driving force, so that the drive joint causes the tangential force of the driving force to act as input load, at least one hinge part of the linkage is configured in a way that the connecting pin is movably hinged to the long hole-shaped hinge hole, and at least one hinge part of the linkage causes the tangential force to increase by changes in the acute angle as the connecting pin moves from a first side of the long hole-shaped hinge hole to a second side. | 05-21-2015 |
| 20160049263 | CIRCUIT BREAKERS WITH HANDLE BEARING PINS - Circuit breakers with handles having at least one handle bearing pin that contacts an upper end portion of a moving arm and allows the arm to rotate to “OFF”, “ON” and “TRIP” positions, typically about 90 degrees of rotation. | 02-18-2016 |
| 20160049274 | CIRCUIT BREAKERS WITH HANDLE BEARING SLEEVES - Circuit breakers with handles having a handle bearing sleeve that contacts an upper end portion of a moving arm and allows the arm to rotate to “OFF”, “ON” and “TRIP” positions, typically with about 90 degrees of rotation. | 02-18-2016 |
| 20160196945 | INSTANT TRIP APPARATUS OF MOLDED CASE CIRCUIT BREAKER | 07-07-2016 |
| 335022000 | Plural latch or combined latch operating means for single latch | 1 |
| 20150123751 | CIRCUIT BREAKER - A vacuum interrupter includes a fixed contact and a movable contact; a driving unit including a main shaft and a plurality of links interlocked with the main shaft, to supply a driving force to open and close the vacuum interrupter; a power transmission unit to transmit a driving force of the driving unit to the movable contact; an over-current relay to detect a fault current and to output a trip signal to break a large-scaled current conduction; a trip unit to generate and transmit a mechanical operation force to the driving unit when a trip signal is output from the over-current relay; and a Thomson drive including a Thomson coil and a repulsive plate, to rotate the main shaft to an opening position or to transmit the trip signal to the trip unit, to promptly breaking a fault current. | 05-07-2015 |
| 335026000 | Reclosing or resetting | 5 |
| 20090189719 | Circuit Breaker Locking And Unlocking Mechanism - A circuit breaker and method include main contacts configured to connect in an on position and be separated in an off position. A handle is coupled to one of the main contacts to adjust the contacts between the on position, the off position, a trip position and an over on position. Secondary contacts are configured to provide power when connected using the handle in the over on position, even when the main contacts are separated. A stop mechanism configured to maintain separation between the main contacts to enable testing using the secondary contacts to power a test circuit such that if a test passes, the stop mechanism is released to permit resetting of the main contacts. | 07-30-2009 |
| 20150091678 | CONTACT STRUCTURE OF LOW-VOLTAGE ELECTRICAL APPARATUS - The present invention discloses a contact structure of a low-voltage electrical apparatus. The contact structure is in a dual-breakpoint form, and comprises: two U-shaped static contacts, the U-shaped static contact enabling the current direction in the static contact to be opposite to the current direction in a movable contact; a contact bridge; two movable contacts, disposed on the contact bridge, and respectively corresponding to the two static contacts; a contact support member, disposed on the movable contacts and connected to the movable contacts; two main contact springs, symmetrically disposed under the movable contacts and forming an angle with the contact bridge; and a spring support member, disposed under the two movable contacts and connected to the two main contact springs. At a contact position of the static contact and the movable contact and at a repulsed open position of the static contact and the movable contact, the angle between the main contact spring and the contact bridge is between −β and +α. | 04-02-2015 |
| 335027000 | Automatic combined with manual | 2 |
| 20090206964 | MECHANICAL INTERLOCK FOR CIRCUIT BREAKER TO PREVENT RELATCHING OF THE BREAKER - An apparatus and method for restricting auxiliary latch movement within a tripped circuit breaker. An auxiliary latch is held in a closed state and is biased into an open state. When the trip bar is activated in response to an overload condition, it releases the auxiliary latch which pivots to the open state. The cradle is released and pivots to disengage the breaker contact. Tabs on the cradle and auxiliary latch cooperatively interlock to limit auxiliary latch movement until the latch is properly reset. | 08-20-2009 |
| 20160111832 | PROTECTIVE ELECTRICAL DEVICE - The present invention is directed to a protective device including a fault protection circuit configured to provide a fault detection stimulus in response to detecting at least one type of predetermined fault condition. A circuit interrupter is disposed on a first side of a PCB and an auxiliary switch is at least partially disposed on a second side of the at least one PCB. The auxiliary switch includes a switch throw element movably extending through an opening in the PCB between the first state and the second state, the auxiliary switch being configured to decouple at least a portion of the fault protection circuit assembly from the plurality of line terminals in the second state. | 04-21-2016 |
| 335028000 | Automatic combined with timing or delay means | 1 |
| 20080303615 | Fault Interrupter and Operating Method - A fault interrupter and a method of operating a fault interrupter to reduce arcing time during fault interruption. Fault interrupter operation is delayed following detecting a peak current such that its operation occurs at a point of the current wave resulting in reduced arcing during fault isolation. | 12-11-2008 |
| 335035000 | Plural trips or combined operating means for single trip (e.g., magnetic with thermal) | 7 |
| 20080290971 | ELECTRICAL SERVICE SWITCHING DEVICE - The disclosure relates to an electrical service switching device, e.g., a circuit breaker, having a magnetic release with a magnet armature, a thermal release, a fixed and moving contact piece, a switching mechanism which can be tripped by the thermal and magnetic release and has a latching point which is formed by a tripping lever and a catch lever which is mounted in a fixed position such that it can rotate and has an elongated hole in order to guide a clip, wherein the magnet armature can act on the contact lever, to which the moving contact piece is fitted, in order to open the contact point in the event of a short, and the switching mechanism can hold the contact lever permanently in the open position, having a switching toggle for manual operation of the switching mechanism, and having an intermediate lever which is articulated at one of its ends with the contact lever and at its other end on the clip, wherein the clip is articulated with at least one limb on the switching toggle. | 11-27-2008 |
| 20090146766 | Protection Switch - A protection switch, particularly for fast switching, includes at least one single-pole protection switch module having a housing, a movable contact mounted on a switching arm for pivoting against a fixed contact between closed and open positions, a manual operating mechanism manually setting the switching arm between the closed and open positions, and a tripping mechanism automatically resetting the switching arm into the open position upon a tripping condition. The switching arm is spring-loaded in direction of the open position and includes a latch lever latching with the manual operating mechanism, and a contact lever carrying the moveable contact. The latch lever is pivotably mounted on the housing and joined to the contact lever by a hinge. The tripping mechanism includes a trip slider to be displaced by a trip device from a ready position towards a tripping position, to load the switching arm for rotationally fixing the contact lever. | 06-11-2009 |
| 20090224861 | SWITCHING DEVICE - A switching device, for example a circuit breaker, has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. A disconnect device is provided for disconnecting the two switching contacts. For triggering the disconnect device, an overcurrent trigger device and/or a short-circuit trigger device are in mechanical operative connection with the disconnect device by way of a reversing lever. The reversing lever includes a first lever arm with a trigger extension that can be actuated by the overcurrent trigger device and/or by the short-circuit trigger device, and a second lever arm with an actuating extension for triggering the disconnect device. To ensure safe operation, the actuating extension is configured to be resiliently compliant. | 09-10-2009 |
| 20090295516 | MAGNETIC TRIP MECHANISM AND ELECTRICAL SWITCHING APPARATUS EMPLOYING THE SAME - A magnetic trip mechanism is provided for an electrical switching apparatus. The magnetic trip mechanism includes a magnetic member, an armature having opposing first and second ends and first and second sides, an armature restraint and a biasing element. The armature moves among first and second positions corresponding to separable contacts of the electrical switching apparatus being tripped open and closeable, respectively. The armature restraint includes first and second portions. In the first position, the first side of the armature engages the magnetic member. In the second position, the second side of the armature engages the second portion of the armature restraint. The armature restraint and the biasing element comprise a sub-assembly, which is removably coupled to the magnetic member. After being removably coupled to the magnetic member, the biasing element is chargeable to bias the armature away from the first position toward the second position. | 12-03-2009 |
| 20100156576 | CIRCUIT BREAKER HAVING REDUCED AUXILIARY TRIP REQUIREMENTS - A bimetal in a circuit breaker can deflect in a first direction or a second direction depending upon conditions. If the bimetal deflects in the second direction it can increase the force necessary to operate a trip mechanism of the circuit breaker. A yoke stop helps to control bimetal deflection forces and thus, the amount of force necessary to operate the trip mechanism. This allows better control, size, and selection of operating parts for the circuit breaker. | 06-24-2010 |
| 20140333396 | METHOD FOR ADJUSTING A TRIPPING UNIT FOR A SAFETY SWITCH - A method for adjusting a tripping unit for a safety switch, wherein the tripping unit has a first current path as pan of a magnetic tripping device, and wherein the tripping unit has a second current path as part of a bimetallic tripping device. According to the invention, a specifiable test current is applied to the tripping unit, a partial current in one of the two current paths is measured, and a cross-section at one of the two current paths is reduced on the basis of the magnitude of the measured partial current. | 11-13-2014 |
| 335036000 | With common structural elements | 1 |
| 20080258850 | Switching Device Having an Electromagnetic Release - The invention relates to switching equipment comprising a housing, at least one contact point that has at least one fixed and one mobile contact part and an electromagnetic trip device, comprising a trip coil and a hammer armature. Said equipment is wherein the electromagnetic trip device comprises a snap body consisting of a material with magnetic shape memory properties, which interacts with the hammer armature. According to the invention, when a short-circuit occurs, the snap body is switched between two bi-stable positions by the influence of the magnetic field of the trip coil. | 10-23-2008 |
| 335038000 | Magnetic | 19 |
| 20100052828 | LINE CIRCUIT BREAKER AND MAGNET YOKE FOR A LINE CIRCUIT BREAKER - In line circuit breakers with a combined overcurrent/short-circuit current tripping device, tripping should take place in a well defined manner in the case of an overcurrent and in the case of a short-circuit current. For this purpose, gaps (A, B) need to be set precisely. If the housing is made from a cost-effective housing material such as thermosetting plastic it is subject to shrinkage. As a result, the mentioned gaps may change. An armature ( | 03-04-2010 |
| 20100085136 | ELECTRICAL SWITCHING APPARATUS AND TRIP ACTUATOR ASSEMBLY THEREFOR - A trip actuator assembly is provided for an electrical switching apparatus, such as a circuit breaker. The trip actuator assembly includes a trip actuator with an actuating element, which is movable among unactuated and actuated positions corresponding to separable contacts of the circuit breaker being closeable and tripped opened in response to a trip condition, respectively. The trip actuator is disposed at a mounting portion of a frame. An interface assembly is movably coupled to the frame and includes an interface element disposed between the actuating element of the trip actuator and a portion of the circuit breaker operating mechanism. When the actuating element moves from the unactuated position toward the actuated position, it engages and moves the interface element, thereby moving the operating mechanism to trip open the separable contacts. The frame secures the trip actuator assembly in a desired orientation within a corresponding one of the housing compartments. | 04-08-2010 |
| 20120056699 | ELECTROMAGNETIC TRIP DEVICE - An electromagnetic trip device for a circuit breaker is provided. The electromagnetic trip device includes a current path having a conductor guiding an electric current through at least one contact point formed between a fixed and at least one movable contact piece. A contact lever carries the at least one movable contact piece. The contact lever is mounted to be movable between a closed contact position and an open contact position. The electromagnetic trip device also includes a magnetic circuit with an air-gap. The movable contact lever is at least partially located in the air-gap. The electric current flows through the contact lever in a direction substantially perpendicular to the orientation of magnetic flux in the air-gap. | 03-08-2012 |
| 20120306600 | Magnetic Actuator With Multiple Air Gaps - Systems and methods provide a magnetic actuator having more than one air gap. After the trip unit is triggered, a first armature is accelerated to quickly close a first air gap and then mate with a second armature. The first and second armature then move toward a core to close a second air gap and reach the final combined armature position, causing a contact to open. A faster reaction time is provided, yet without increasing the number of turns of the trip coil winding, and provides a more efficient actuator. | 12-06-2012 |
| 20140145801 | MAGNETIC ACTUATOR WITH ROTATABLE ARMATURE - A magnetic actuator with a movable part and a non-movable part is disclosed. The movable part can include two rotatable ferromagnetic elements with a portion close to the non-movable part to reduce magnetic force acting on the movable part during a switching operation, while moving the movable part towards the non-movable part. As the distance between the movable part and the non-movable part is reduced, a current through a coil of the non-movable part for generating magnetic force for acting on the movable part during a switching operation. | 05-29-2014 |
| 20140266520 | TRIP ACTUATOR FOR SWITCH OF ELECTRIC POWER CIRCUIT - The present disclosure relates to a small-sized trip actuator for a switch of an electric power circuit, capable of triggering a switching mechanism to a circuit opening position at fast speed by minimizing a delay of time, the trip actuator including a main driving unit configured by a solenoid actuator comprises an output pin which is linearly movable, and a sub driving unit configured by a Thomson drive unit comprises a repulsive plate connected to the output pin, and a Thomson coil causing the repulsive plate to be repulsively moved when a current flows therethrough, such that the output pin is linearly moved, the sub driving unit operating to linearly move the output pin, before the main driving unit operates, upon opening the electric power circuit. | 09-18-2014 |
| 20140312996 | BIMETAL AND MAGNETIC ARMATURE PROVIDING AN ARC SPLATTER RESISTANT OFFSET THEREBETWEEN, AND CIRCUIT BREAKER INCLUDING THE SAME - A trip mechanism includes a bimetal having a first side and an opposite second side, a magnetic yoke disposed proximate the first side of the bimetal, and a magnetic armature pivotally connected to the bimetal and disposed proximate the opposite second side thereof. The armature has a first side with a surface, an opposite second side, and an opening extending from the first side to the opposite second side of the magnetic armature. The opening has a latch surface structured to engage the latch surface of an operating mechanism. The first side of the magnetic armature is structured to engage the opposite second side of the bimetal. At least one of the bimetal and the magnetic armature is structured to provide an offset between the bimetal and the surface of the first side of the magnetic armature at the opening of the magnetic armature. | 10-23-2014 |
| 20150035629 | SHORT CIRCUIT INDICATING DEVICES AND METHODS FOR CIRCUIT BREAKERS - A device is provided for use with a circuit breaker that includes a magnetic trip bar adapted to move from a non-tripped position to a tripped position in response to a short-circuit condition, and move from the tripped position to the non-tripped position to reset the circuit breaker. The device includes a slider that has a first position and a second position, and a latch coupled to the magnetic trip bar and the slider. As the magnetic trip bar moves from the non-tripped position to the tripped position, the latch is adapted to move the slider from the first position to the second position to indicate that a short circuit trip has occurred. Numerous other aspects are provided. | 02-05-2015 |
| 20150318136 | BREAKER TRIPPING MECHANISMS, CIRCUIT BREAKERS, SYSTEMS, AND METHODS OF USING SAME - Embodiments provide tripping unit of a circuit breaker. The tripping unit includes a magnet, a bimetal member extending alongside of the magnet, and an armature pivotable on the magnet, wherein the armature having an engagement portion engageable with the bimetal member at a moveable end of the bimetal member. Circuit breakers including triggering mechanisms and tripping units are also disclosed, as are low-profile, electronic circuit breakers including a maximum transverse width (Wt) limited to occupy only a single standard breaker panelboard location. System and methods are provided, as are other aspects. | 11-05-2015 |
| 20160012999 | LOW INSTANTANEOUS LEVEL CIRCUIT BREAKERS, CIRCUIT BREAKER TRIPPING MECHANISMS, AND TRIPPING METHODS | 01-14-2016 |
| 20160181049 | ELECTROMAGNETIC ACTUATOR AND METHOD OF USE | 06-23-2016 |
| 335039000 | With time delay (e.g., thermal) | 3 |
| 20100219916 | POWER SUPPLY SWITCH - A power supply switch comprising a power input assembly receiving power from a power source, a power output assembly connected to an appliance and a control circuit between the power input assembly and power output assembly. The control circuit comprises a switch having an open position and a closed position and being manually resettable by a user to the closed position, wherein power is supplied from the power input assembly to the power output assembly when the switch is in the closed position; a current detection circuit sensing a current passing from the power input assembly to the power output assembly, the current detection circuit outputting an activation signal indicative of the presence of the sensed current; and a timer circuit receiving the activation signal and automatically activating a timer in response, wherein the timer sends a signal to the switch causing the switch to move to the open position after a delay time. | 09-02-2010 |
| 20120119855 | THERMALLY INDEPENDENT OVERCURRENT TRIPPING DEVICE - Exemplary embodiments are directed to an electrical overcurrent tripping device for a circuit breaker. The tripping device includes an actuating member which in case of an overcurrent is driven to interact directly or indirectly with a movable contact piece of the circuit breaker to open a contact point in the circuit breaker if the overcurrent is exceeding a preset tripping threshold for a predetermined tripping delay time. The actuating member is coupled to a magnetic circuit such that the driving force acting on the actuating member is created by the magnetic field of the magnetic circuit, said magnetic field being induced by the overcurrent. The actuating member is coupled to an electromagnetic damping arrangement to set the tripping delay time, and is connected to a coupling spring configured to adjust the overcurrent tripping threshold. | 05-17-2012 |
| 20140327501 | Sabbath Adapted Electrical Devices - A Sabbath adapted electrical device configured to enable normal usage on Sabbath without manually changing the electrical status of the electrical circuitry; open circuits remain open and closed circuits remain closed. | 11-06-2014 |
| 335041000 | With magnetic flux winding directly in series with main contacts | 1 |
| 20150294825 | CURRENT DIRECTION SENSITIVE CIRCUIT INTERRUPTER - A circuit interrupter includes a first terminal, a second terminal, separable contacts moveable between a closed position and an open position, an operating mechanism configured to open said separable contacts, an electromagnetic element electrically connected between the first terminal and the second terminal and cooperating with said operating mechanism, and a diode electrically connected between the first terminal and the second terminal and in parallel with the electromagnetic element. When a current flowing through the circuit interrupter flows in a first direction from the first terminal toward the second terminal, the current flows through the diode. When the current flowing through the circuit interrupter flows in a second direction from the second terminal toward the first terminal, the current flows through the electromagnetic element. | 10-15-2015 |
| 335042000 | With adjusting or calibrating means | 4 |
| 20090115556 | Divided adjustable armature for a circuit breaker - A divided armature for the trip mechanism of a circuit breaker especially useful for low trip current breakers allows for two independent adjustments: first of the magnetic air gap between the yoke and the armature and second of the clearance between the trip bar and the back plate of the armature. The divided armature allows the force of a return spring of the trip mechanism to be unchanged while adjusting the magnetic air gap to set the trip current point. | 05-07-2009 |
| 20100188176 | DIVIDED ADJUSTABLE ARMATURE FOR A CIRCUIT BREAKER - A divided armature for the trip mechanism of a circuit breaker especially useful for low trip current breakers allows for two independent adjustments: first of the magnetic air gap between the yoke and the armature and second of the clearance between the trip bar and the back plate of the armature. The divided armature allows the force of a return spring of the trip mechanism to be unchanged while adjusting the magnetic air gap to set the trip current point. | 07-29-2010 |
| 20150035630 | METHODS AND APPARATUS FOR AN IMPROVED MAGNETIC ARMATURE SELECTIVE TRIPPING DEVICE OF A CIRCUIT BREAKER - Methods, apparatus, and systems are provided for a selectivity device for a circuit breaker. The invention includes a modular assembly adapted to be coupled to a load conductor assembly. The modular assembly includes a tripping plunger including a cam surface adapted to interact with a breaker tripping mechanism; an armature coupled to the tripping plunger; a yoke adapted to generate a magnetic field in response to an electric current in the load conductor assembly and disposed to apply a magnetic force proportionate to the electric current on the armature; and a spring assembly adapted to counter-balance the magnetic force up to a predefined tripping current in the load conductor assembly. Numerous additional aspects are disclosed. | 02-05-2015 |
| 20150077200 | Methods And Apparatus For Calibrating A Thermomagnetic Trip Unit Of A Circuit Breaker - Methods, apparatus, and systems are provided for calibrating a thermomagnetic trip unit in a circuit breaker base assembly. The invention provides a calibration nut, an extended armature guide pin having a threaded portion, a spring disposed on the calibration nut and coiled around the extended armature guide pin, and an armature disposed on the spring and adapted to be held by an electromagnet. The calibration nut is threaded on the threaded portion of the extended armature guide pin and adapted to translate up or down depending on rotation of the extended armature guide pin to compress or decompress the spring against the armature. The extended armature guide pin includes a slotted end that is accessible when the apparatus is installed in the circuit breaker base assembly. The calibration nut is also accessible when the apparatus is installed in the circuit breaker base assembly. Numerous additional aspects are disclosed. | 03-19-2015 |
| 335043000 | Thermal | 2 |
| 20150318135 | ACTUATOR WITH THERMOMAGNETIC SHUNT, ESPECIALLY FOR TRIGGERING A CIRCUIT BREAKER - An electromagnetic actuator including a saturable magnetic shunt system. The shunt is associated with a coil of the actuator and allows channeling of a more or less large part of the flow according to current circulating in the product. In this way, when the actuator is used in a circuit breaker, the actuator allows the circuit breaker to be triggered from a short circuit as usual and also from overload caused by action of the shunt. | 11-05-2015 |
| 335045000 | With regulating, adjusting or calibrating means | 1 |
| 20090302978 | METHOD OF BI-DIRECTIONAL THERMAL CALIBRATION OF A CIRCUIT INTERRUPTER FRAME AND CIRCUIT INTERRUPTER TEST SYSTEM INCLUDING THE SAME - A circuit breaker test system includes a circuit breaker under test having a deformable frame with an elongated slot, an elongated deformable portion adjacent the elongated slot and a movable portion adjacent the deformable portion, and a thermal trip assembly coupled to the movable portion. A calibration device includes a forked tool straddling the deformable portion. The trip assembly has a first thermal response. The calibration device rotates the tool in a first rotational direction and responsively deforms the deformable portion and moves the movable portion in a first direction, in order to calibrate the trip assembly for a second different thermal response. The calibration device rotates the tool in an opposite second rotational direction and responsively deforms the deformable portion and moves the movable portion in an opposite second direction, in order to re-calibrate the trip assembly for a third thermal response between the first and second thermal responses. | 12-10-2009 |
