| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 200400000 | CONTACT MOVED BY SUDDEN RELEASE OF STORED ENERGY, (E.G., SPRING CHARGER) | 51 |
| 20080202910 | Latching Device for a Spring-Type Drive - A latching device has a resetting device, a triggering device for producing a triggering force which acts in a first direction, a compression element, and an upper and a lower supporting element which, in the latched state, are arranged one above the other in a housing and are connected to each other by at least one coupler such that they are at a distance from each other, and which, in the latched state, are acted upon, to provide a spring-type drive, by a compressive force applied along a line of action via the compression element. The lower supporting element, loaded by the compressive force in the latched state, is deflected against a stop and is held in that position. The paths of movement of the upper and of the lower supporting element are defined by the housing by way of guides. The path of movement for the lower supporting element runs substantially perpendicular to the path of movement of the upper supporting element. | 08-28-2008 |
| 20080217151 | AUTOMATIC DISCHARGING APPARATUS FOR CLOSING SPRING IN AIR CIRCUIT BREAKER AND AIR CIRCUIT BREAKER HAVING THE SAME - Provided are an air circuit breaker capable of allowing a closing spring to be automatically discharged at a pulled-out position in a pull-out type air circuit breaker and an automatic discharging apparatus for the closing spring in the air circuit breaker, the automatic discharging apparatus for the closing spring comprising a cam shaft rotation preventing unit installed on a cam shaft allowing the closing spring to be charged or discharged and configured to restrict the rotation of the cam shaft by an elastic restoring force of the closing spring, and a unit for releasing the cam shaft rotation preventing unit connected to the cam shaft rotation preventing unit and configured to allow the cam shaft to be rotated by the elastic restoring force of the closing spring according to positions where a main body of the air circuit breaker is pulled out of a cradle. | 09-11-2008 |
| 20080237014 | SPRING DRIVEN RAM FOR CLOSING A ELECTRICAL SWITCHING APPARATUS - An operating mechanism closing assembly for an electrical switching apparatus having a ram assembly structured to engage and move a toggle assembly is provided. The ram assembly includes a ram body that travels over a, preferably, straight path and engages the toggle assembly. The path may be defined by one or more pins extending through the ram body. One or more springs are coupled to the ram body and bias the ram body toward the toggle assembly. The springs may be conveniently disposed about the pins. In this configuration, the force created by the springs is, essentially, applied directly to the toggle assembly. The toggle assembly is coupled to, and structured to rotate, a pole shaft that is further coupled to, and structured to actuate, the electrical switching apparatus contacts. Accordingly, because the force created by the springs is not transferred via one or more cams, the required force, and therefore the size of the springs, is reduced compared to the prior art. | 10-02-2008 |
| 20080237015 | CATCHMENT MECHANISM TO PREVENT CAMSHAFT OVER-ROTATION DURING CLOSURE IN A DIRECT-DRIVE STORED ENERGY MECHANISM - A catchment mechanism for an electrical switching apparatus operating mechanism is provided. The catchment mechanism includes a catchment wheel with a radially extending surface, a catchment prop, and a catchment prop reset pin. The catchment wheel rotates with the cam in the closing assembly as the closing springs are being charged. During the charging of the springs, the catchment prop stop edge travels over, but preferably does not engage, the wheel outer surface. When the closing springs are released, the catchment prop stop edge engages the catchment wheel radially extending surface thus causing the catchment wheel to stop rotating. As the catchment wheel is fixed to the cam shaft, the rotation of the cam shaft, and therefore the cam, is also stopped. The catchment wheel radially extending surface is positioned so that the cam is stopped in an appropriate position to begin recharging the closing spring. | 10-02-2008 |
| 20080237016 | POSITIVE RESETTING CLOSE LATCH FOR CLOSING ELECTRICAL SWITCHING APPARATUS - A latch assembly for an electrical switching apparatus operating mechanism is provided. The latch assembly is structured so that force from the closing spring is directed along a line extending through the pivot point of a latch prop. A reset assembly for the latch prop is also provided. | 10-02-2008 |
| 20080257702 | ELECTRICAL SWITCHING APPARATUS, AND LATCH ASSEMBLY AND LATCH ENGAGEMENT CONTROL MECHANISM THEREFOR - A latch engagement control mechanism is provided for a latch assembly of a circuit breaker including a housing, separable contacts, and an operating mechanism having a pole shaft, and at least one link coupled to the pole shaft. The latch assembly includes a pivot member cooperable with such link. The latch engagement control mechanism includes a latch pin having a cut-out portion and pivoting among a first position in which the latch pin prevents the pivot member from pivoting, and a second position in which the cut-out portion provides a clearance for the pivot member to pivot. A latch member coupled to the latch pin at or about the cut-out portion, includes at least a first protrusion engageable by the pivot member to establish the first position of the latch pin. | 10-23-2008 |
| 20080264769 | ELECTRICAL SWITCH - An electrical switch has two fixed contacts and a moving contact, a spring urging the moving contact towards contacting the fixed contacts, and an actuating mechanism for moving the moving contact away from the fixed contacts against urging by the spring and, alternatively, allowing the moving contact to contact the fixed contacts under the action of the spring. The actuating mechanism has an engaging member for engaging and retaining the moving contact and includes a spring acting on the engaging member for separating the moving contact from the fixed contacts through an instant spring-release action. One of the engaging member and the contacts is configured such that the moving contact will be engaged and moved by the engaging member out of contact with one of the fixed contacts earlier than with the other fixed contact. | 10-30-2008 |
| 20080271981 | ELECTRICAL SWITCHING APPARATUS, AND YOKE ASSEMBLY AND SPRING ASSEMBLY THEREFOR - A spring assembly is provided for a yoke assembly of an electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism structured to open and close the separable contacts. The operating mechanism includes a pole shaft. The yoke assembly is coupled to the pole shaft and is movable among first and second positions corresponding to the separable contacts being closed and open, respectively. The spring assembly includes a number of first springs having a first spring rate and being coupled to the yoke assembly, and a number of second springs having a second spring rate and being coupled to the yoke assembly. The second spring rate is different than the first spring rate. The number of first springs and the number of second springs bias the yoke assembly toward the second position. | 11-06-2008 |
| 20080296137 | ELECTRICAL SWITCHING APPARATUS AND STORED ENERGY ASSEMBLY THEREFOR - A stored energy assembly is provided for an electrical switching apparatus, such as a circuit breaker. The stored energy assembly includes a mount removably coupled to the circuit breaker housing. A stored energy mechanism, such as a spring, is coupled to the mount and is movable among charged and discharged positions. An actuating element is cooperable with the gears of a gear assembly in order to move among first and second positions corresponding to the spring being disposed in the charged and discharged positions, respectively. A manual charging mechanism and an automatic charging mechanism are coupled to the gear assembly, and move the gears, in order to move the actuating element and charge the spring. The spring, the actuating element, the gear assembly, and the charging mechanisms are coupled to the mount, thereby forming a sub-assembly. The sub-assembly is removably coupled to the circuit breaker housing. | 12-04-2008 |
| 20080296138 | ELECTRICAL SWITCHING APPARATUS, AND STORED ENERGY ASSEMBLY AND TIME DELAY MECHANISM THEREFOR - A time delay mechanism is provided for a circuit breaker stored energy assembly including a mount, a spring coupled to the mount, at least one charging mechanism for charging the spring to store energy, at least one actuator for releasing the stored energy, and a drive assembly for transferring the stored energy into movement of the circuit breaker operating mechanism. First and second trip shafts of the time delay mechanism are pivotably coupled to the mount. Linking elements interconnect the first and second trip shafts. A trip catch and a drive lever are coupled to the first trip shaft. The linking elements and a damper, which is connected to the drive lever, contribute to a delay from a first time that the first trip shaft initially moves, to a second time that the second trip shaft moves to release the trip catch. The damper is adjustable to adjust the delay. | 12-04-2008 |
| 20090000933 | CIRCUIT BREAKER SUBASSEMBLY APPARATUS - A circuit breaker subassembly is disclosed. The subassembly includes a base, an operating mechanism, a one-piece non-conductive rotor disposed within the base, and a plurality of sets of contact arms supported by the rotor. The rotor is disposed in operable connection with the operating mechanism and includes a rotational degree of freedom relative to the base with portions of the rotor disposed between each set of the plurality of sets of contact arms to define separation portions. The operating mechanism includes a frame disposed within the base, a cradle in pivotal connection with the frame, an upper link in pivotal connection with the cradle, and a lower link having a first end and a second end, the first end in pivotal connection with the upper link and the second end in pivotal connection with the rotor at the separation portions. | 01-01-2009 |
| 20090050459 | MOTOR OF SPRING CHARGING DEVICE IN AIR CIRCUIT BREAKER - Disclosed is a motor of spring charging device in air circuit breaker wherein first and second frames are formed with glass fiber-added plastic material to facilitate the tight-fitting of a bearing and a manufacturing cost of driving motor is reduced by removing a brush holder isolator which was an essential part for isolating the brush holder, and a brush holder and a brush holder insertion hole of the first frame for inserting a brush holder are structurally improved to enable the brush holder to be easily and solidly inserted into the brush holder insertion hole of the first frame, thereby reducing the labor work of a soldering for connecting the stator winding. | 02-26-2009 |
| 20090050460 | CIRCUIT BREAKER HAVING AUTOMATIC RELEASE LINKAGE - A circuit breaker having an automatic release linkage is disclosed that is capable of preventing damage and deformation of elements by automatic linkage release before electro-impulsive force generated from within the circuit breaker by a large short-circuit current causes the damage and deformation of open/close linkage. | 02-26-2009 |
| 20090065341 | Double Break Disconnect/Contact System - The present invention relates generally to a mechanism of a contact system for circuit breakers. More particularly, the invention encompasses a mechanism for a rotary double-break contact system, which enables a direct transfer of torque from stored energy components, such as, springs, to the contact arm in the ON-position (contacts closed) without using intermediate cam surface. The mechanism described in the invention also ensures reliable locking of the contact arm in the blow-off position using stationary means that are integral with or fixed to a crossbar module. This invention enables to achieve significant reduction or even to eliminate friction at certain critical interfaces between the contact mechanism components, thus, reducing or potentially eliminating hysteresis, and improving performance consistency, and also eliminating mechanism performance dependency on wear level and condition of an intermediate cam surface. An additional feature of this invention is a reduction of a loss of contact torque/force during over-travel in the ON position when the fixed and/or moveable contacts erode. Configurations described in this invention may also feature physical protection for the moving components of the contact mechanism assembly from flying particles resulting from short circuit shots. | 03-12-2009 |
| 20090071811 | OPERATING MECHANISM WITH ADJUSTMENT OF CONTACT FORCE - An operating mechanism operates a multi-pole circuit breaker assembly. For each circuit breaker in the multi-pole circuit breaker assembly, the following elements are provided: a connection assembly for connection to an operating shaft of the circuit breaker, an actuator for changing between an ON and OFF state of the operating mechanism, a translation assembly for transferring a movement of the actuator to the connection assembly, and a compression spring exerting a force on the operating shaft in the ON state of the operating mechanism. The force exerted by the compression spring is adjustable by a force setting assembly in a continuous manner. | 03-19-2009 |
| 20090127085 | Electrical switchgear unit such as a circuit breaker or switch - The present invention relates to an electrical switchgear unit housed in a case and comprising at least one stationary contact and at least one movable contact supported by a contact support shaft, an opening and/or closing mechanism of the movable contact(s) fitted in a support, said mechanism comprising a manual operating handle of the contact(s) fitted rotating around a toggle pin of the case, and a shaft called high-speed closing shaft designed to keep the movable contact(s) in the open position, at the beginning of the manual closing operation of the handle and over a certain travel of the latter, by storing energy and to release the movable contact(s) after this travel of the handle so that the stored energy causes high-speed closing of the contacts. This device is characterized in that, on one of its side faces, the above-mentioned support of the mechanism comprises an opening designed to accommodate at least a part of said high-speed closing shaft, the latter being thereby able to be inserted laterally at least partially into said support prior to fixing of said shaft inside the case, and that the means for fixing said support inside the case are located on one side of mechanism only with respect to the high-speed closing shaft. | 05-21-2009 |
| 20090166167 | Spring Arrangement For Spring Drive Unit And Spring Drive Unit Comprising Spring Arrangement - The invention describes a spring arrangement for spring drive unit, which spring arrangement comprises a spring, a pullrod connected at a first pullrod end to a first spring end of the spring and connected at an opposite second pullrod end to a rotary shaft of the spring drive unit, a frame plate against which a second spring end of the spring is mounted and the frame plate being provided with an opening through which the pullrod extends to be connected to the shaft. Further, the first spring end of the spring, to which the pullrod is connected, is unguided, and the parameters of the spring are chosen in response to the operating conditions of the spring drive unit such that the spring is stable during operation. | 07-02-2009 |
| 20090242372 | FULL-PROTECTION CIRCUIT BREAKER - A full-protection circuit breaker has a line-protection circuit breaker and a residual-current-operated component which can be fitted thereto. A first switching mechanism, located therein, includes a first switching toggle for operation of a first latching mechanism, which is accommodated in the residual-current-operated component. A second switching mechanism, provided in the line-protection circuit breaker, includes a second switching toggle for operation of a second latching mechanism, which is accommodated in the line-protection circuit. The first and the second latching mechanisms are coupled by means of a first coupling element. The first and the second switching toggle are coupled by means of a second coupling element, wherein the second coupling element acts on the first switching toggle with respect to the second switching toggle, pivoting through the predeterminable lead angle in the direction of its connected position. | 10-01-2009 |
| 20100078302 | INSULATING SWITCHING ROD WITH A CONTACT PRESSURE ARRANGEMENT COMPRISING A PLURALITY OF HELICAL COMPRESSION SPRINGS WOUND IN OPPOSITE SENSES - An insulating switching rod is used to initiate a drive movement into a moving contact of an electrical contact system of a switching device and to produce a contact force when the contact system is in the closed state. A tensioning apparatus is arranged in a cavity for a drive element of the switching rod in order to maintain the contact force, which has a greater contact force with a compact design, and ensures constant spring characteristics as well as low wear over the entire useful life. The tensioning apparatus is formed by a helical compression spring configuration or by two oppositely wound helical springs. | 04-01-2010 |
| 20100089734 | Switch-on Energy Store Apparatus - In order to form a switch-on energy storage apparatus for a circuit breaker, wherein a switch-on energy storage device is held at a first end and is connected to a cam of a tensioning apparatus at a second end, with which tensioning apparatus means interact which limit a return movement. The switch-on energy storage apparatus has a simple and cost-effective design. The means have a ratchet mechanism arranged at the first end of the switch-on energy storage device. | 04-15-2010 |
| 20100155210 | Arrangement, in Particular, for Activating a Transport Pawl and Clamping Device for a Spring Energy Store of an Electric Switch Comprising Such an Arrangement - An arrangement is disclosed for, in particular, activating a transport pawl including a movable activation device which is secured to a carrying structure and, in a first activation phase, can be moved out of the position of rest into an end position, counter to the force of a restoring spring, and in a second activation phase can be moved out of the end position and back into the position of rest, under the force of the restoring spring. In order to configure the arrangement in such a way that the operator of the activation device is alerted to incompletely executed activation of the activation device, in at least one embodiment a locking mechanism is provided which locks the activation device in the direction of its position of rest during the first activation phase when a first intermediate position is reached, and releases it again when a second intermediate position is reached. The arrangement can be applied in particular in tensioning devices for spring energy stores of electric switches which have a tensioning shaft and a manual drive for turning the tensioning shaft. | 06-24-2010 |
| 20100206706 | LOAD-BREAK SWITCH - The invention relates to a load-break switch, in particular for mounting on busbars, comprising a housing and a cover arranged pivotally thereon, a snap switch mechanism to produce or to interrupt an electrical connection between associated contacts, and an actuating lever for switching between a current operation and a current interruption operation, a control mechanism which, as a function of the position of the actuating lever, frees or blocks a release element for a movement, the release element being coupled with a locking device which is arranged such that it can be engaged with or disengaged from the cover. | 08-19-2010 |
| 20100264004 | APPARATUS FOR MOUNTING AN ACCESSORY DEVICE TO A CIRCUIT BREAKER - An apparatus for connecting an accessory device to a circuit breaker to attenuate mechanical force generated by the accessory device includes a base having one or more projections configured to engage the circuit breaker to form a rigid connection to the circuit breaker, and one or more apertures configured for engagement with the accessory device to form a rigid connection to the accessory device. | 10-21-2010 |
| 20110073453 | DRIVE SYSTEM FOR ELECTRICAL SWITCHING DEVICES - A modular cost-effective drive system for electrical switching devices of medium-voltage installations is specified. The drive system, by the addition or omission of individual components, can be used both as a three-position disconnector with a snap-action or storage drive function and as a two-position circuit breaker which can also be expanded by a brief interruption function. | 03-31-2011 |
| 20110214975 | ELECTRICAL SWITCHING APPARATUS AND STATUS INDICATING ASSEMBLY THEREFOR - A status indicating assembly is provided for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism comprises a stored energy mechanism and a primary latch. The primary latch is pivotable between a latched position corresponding to the stored energy mechanism being chargeable, and an unlatched position corresponding to the stored energy mechanism being discharged. The status indicating assembly includes a first indicator for indicating whether the separable contacts are open or closed, a second indicator for indicating whether the stored energy mechanism is charged or discharged, and a third indicator for indicating whether or not the circuit breaker is ready to close the separable contacts. | 09-08-2011 |
| 20120061224 | INDICATOR DEVICE OF A CIRCUIT BREAKER - An indicator device displays a status of switching contacts of a circuit breaker that includes an energy store. The indicator device includes a lever and a coupling element. The lever includes a display element and is movable between a triggered position and a non-triggered position based upon at least one operational parameter. The coupling element is operatively connected to the lever so as to be movable between a triggered, position and a non-triggered position by the lever. The coupling element is configured to be further operatively connected to a first actuator of the energy store so as to be movable by the first actuator into the non-triggered position when energy is stored in the first energy store and so as to not be moved from the non-triggered position into the triggered position when energy stored in the energy store is released. | 03-15-2012 |
| 20120103775 | ELECTRICAL SWITCHING APPARATUS AND CHARGING ASSEMBLY THEREFOR - A charging assembly for an electrical switching apparatus includes a cam shaft and including a number of cams. A latch lobe and a charging handle are coupled to opposing ends of the cam shaft. Each stroke of the charging handle pivots the cams a predetermined amount. A rocker arm includes a first portion cooperating with the cams, a second portion translating movement of the cams into movement of a stored energy mechanism, and a third portion cooperating with a close D-shaft having a close latch. A close prop includes a first end cooperating with the close D-shaft, and a second end including a roller that cooperates with the latch lobe. The close D-shaft pivots between latched and unlatched positions. The third portion cooperates with the close D-shaft to hold the close latch in the unlatched position until the charging handle has been pivoted a predetermined number of strokes. | 05-03-2012 |
| 20120199456 | SPRING ACTUATOR FOR CIRCUIT BREAKER - Disclosed is a spring actuator for a circuit breaker, the spring actuator comprises a spring configured to provide an elastic energy serving to perform a circuit opening operation or a circuit closing operation of a circuit breaker; a spring housing providing a space to compress or extend the spring; a movable supporting plate linearly movable in the spring housing; a linearly-movable shaft linearly-movable having a first position for charging an elastic energy by compressing the spring, and having a second position for releasing the spring; a driving mechanism configured to provide a rotatory power for linearly-moving the linearly-movable shaft; one rigid link configured to convert the rotatory power provided from the driving mechanism to a linear power and to transmit the linear power to the linearly-movable shaft; and a latch mechanism having a position for latching the spring such that the spring maintains a charged state. | 08-09-2012 |
| 20120211341 | Spring Operated Actuator For An Electrical Switching Apparatus - A spring operated actuator for an electrical switching apparatus. It has an opening spring and a closing spring, one of them including a torsion spring. The torsion spring is charged in the unwinding direction and discharged in the winding direction. | 08-23-2012 |
| 20120273333 | SCALABLE MEDIUM VOLTAGE LATCHING EARTHING SWITCH - A scalable earthing switch that incorporates a torsion spring to effect rapid closure of the switch. The torsion spring is supported coaxially about a rotatable shaft on which contact blades are mounted resulting in compact design. The blade contacts are separated axially along the length of the shaft by one or more spacers. By using difference size spacers the distance between adjacent blade contacts can be changed and, thus, the earthing switch can be easily scaled for different applications. A latching (detent) mechanism is provided for latching the switch in an open position. | 11-01-2012 |
| 20120273334 | MINIATURE CIRCUIT BREAKER - A miniature circuit breaker having a pair of operable contacts in a main current path between a line terminal and load terminal, a trip mechanism for opening the contacts if an overcurrent condition occurs, and an electric motor to close the contacts via a contact closing mechanism. The trip mechanism includes a trigger mechanism and a contact opening mechanism, a current sensor arranged to detect current through the main current path, and a control unit. The trigger mechanism triggers the contact opening mechanism if a trip signal is produced. The control unit produces a trip signal to operate the trigger mechanism if it determines a short circuit condition occurs based on output of the current sensor; and the control unit is arranged to operate the electric motor to trigger the contact opening mechanism into opening the contacts independently of the trigger mechanism if it determines that an overload condition occurs. | 11-01-2012 |
| 20130001057 | SWITCH, IN PARTICULAR A POWER SWITCH FOR LOW VOLTAGES - A switch includes a handle for activation and deactivation and an actuating device. The actuating device includes a motor drive, which tensions a spring held in a tensioned state by latching by way of a gear. Two spring pairs are provided for activation and deactivation. The two bridges are arranged, with the spring pairs thereof nested within each other and displaceable with respect to each other. The bridges facing each other are pressed apart from one another to tension the spring pairs, and an actuation element is arranged on the one bridge for activation and an actuation element is arranged on the other bridge for deactivation. | 01-03-2013 |
| 20130026020 | POWER TRANSMISSION DEVICE FOR VACUUM INTERRUPTER AND VACUUM BREAKER HAVING THE SAME - Disclosed are a power transmission device for a vacuum interrupter, and a vacuum breaker having the same. The device includes: a driving link coupled to an adjuster; a driven link coupled to a movable electrode of a vacuum interrupter; connection links configured to connect the driving link and the driven link with each other, and coupled to the driving link and the driven link such that an interval between the driving link and the driven link is varied; cams coupled to the connection links in a perpendicular direction; and cam guides having guide recesses for slidably coupling the cams, and configured to guide the interval between the driving link and the driven link to be changed. | 01-31-2013 |
| 20130062175 | ELECTRICAL SWITCHING APPARATUS, AND STORED ENERGY ASSEMBLY AND ENERGY STORAGE AND RELEASE CONTROL MECHANISM THEREFOR - An energy storage and release control mechanism is provided for a stored energy assembly of an electrical switching apparatus. The stored energy assembly includes a shaft, a stored energy mechanism, and a charging mechanism, such as a charging cam. The charging cam is movable to pivot upon the shaft, thereby charging the stored energy mechanism. The energy storage and release control mechanism includes a ratchet coupled to the charging cam and including a plurality of teeth, a mounting assembly, and a plurality of pawl assemblies. Each pawl assembly includes a pawl pivoting between an engaged position corresponding to the pawl engaging the teeth of the ratchet to resist inappropriate movement of the charging handle, and a disengaged position corresponding to the pawl not engaging the teeth of the ratchet. Preferably, first and second pawl assemblies include first and second pawls, respectively, wherein only one of the first and second pawls engages the teeth of the ratchet at a time. | 03-14-2013 |
| 20130134020 | CHARGING ASSEMBLY WITH OVER ROTATION CONTROL AND ELECTRICAL SWITCHING APPARATUS EMPLOYING SAME - A charging assembly is provided for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, separable contacts, and an operating mechanism for opening and closing the separable contacts. The charging assembly includes a stored energy mechanism, such as a closing spring, which is movable between charged and discharged positions. A cast member is coupled to the closing spring and moves therewith. The cast member includes a projection. A cam shaft is pivotably coupled to the housing, and includes a number of cams. A catchment, which is also pivotably coupled to the housing, includes an impact surface and a protrusion. The impact surface cooperates with a corresponding one of the cams to resist over rotation of the cam shaft. The protrusion of the catchment cooperates with the projection of the cast member to maintain the desired relationship between the catchment and the cam. | 05-30-2013 |
| 20130180838 | SWITCHING APPARATUS FOR AN ELECTRICAL SWITCHING DEVICE - A switching apparatus for an electrical switching device is disclosed, in particular an electrical circuit breaker, for safeguarding at least two poles. A tripping element is included for each pole, supported moveably between a rest position and a tripping position. A common switching frame, movable between a pre-tension position and a switching position, is actively connected for force transmission to frame sections of the at least two tripping elements for the movement of the switching frame into the switching position upon movement of the tripping element into the tripping position. At least one spring element is embodied to apply force to the frame sections of the at least two tripping elements in the direction of the rest position of the at least two tripping elements. | 07-18-2013 |
| 20130192966 | SWITCHING UNIT FOR AN ELECTRICAL SWITCHING DEVICE AND ELECTRICAL SWITCHING DEVICE - A switching unit for an electrical switching device is disclosed, in particular for a circuit breaker, in which the pawl and the pawl spring of the switching unit are embodied such that, when a switching lever of the switching unit is moved from an ON position into a TRIP position and/or from the TRIP position into a RESET position, the pawl spring is bent by contact with a lateral face of the pawl. An electrical switching device, such as a circuit breaker, including at least one such switching unit is also disclosed. | 08-01-2013 |
| 20130228430 | LATCH FOR A CIRCUIT BREAKER - A circuit breaker includes a latch including a switching mechanism for opening and closing a switching contact operatively connected to a tensioning element, and an unlatching mechanism by which, on the basis of a tripping signal, the tensioning element can be changed from a tensioned to an at least largely untensioned state, thereby opening the switching contact. In an embodiment, the tensioning element is indirectly linked to a tensioning lever having a locating surface on which a locking pawl of the unlatching mechanism bears in the tensioned state of the tensioning element. The locating surface is curved in the direction of the locking pawl and is movably disposed relative to the tensioning lever. | 09-05-2013 |
| 20130270084 | ELECTRICAL SWITCHING APPARATUS, AND CLOSING ASSEMBLY AND REVERSAL PREVENTION MECHANISM THEREFOR - A reversal prevention mechanism for an electrical switching apparatus, such as a circuit breaker, includes an actuator assembly pivotably coupled to the circuit breaker housing, a first stop element for controlling movement of the actuator assembly, a stop assembly pivotably coupled to the housing, and a second stop element for controlling movement of the stop assembly. The stored energy mechanism is movable among a charged position, a discharged position, and a contact touch position corresponding to a point at which the circuit breaker separable contacts make initial electrical contact. When the stored energy mechanism is disposed in the contact touch position, the stop assembly cooperates with the actuator assembly to prevent the stored energy mechanism from moving backwards. | 10-17-2013 |
| 20130277190 | STORAGE MODULE FOR A HYDRAULIC STORED-ENERGY SPRING MECHANISM - A storage module for a hydraulic stored-energy spring mechanism for operating a high-voltage switch, for example a high-voltage circuit breaker, having a spring element which acts to store energy and having a fluid for transmitting the energy of the spring element, by a moving storage piston, to a piston rod for operating the high-voltage switch, wherein the storage piston projects into the housing which is filled with fluid and the housing forms a pressurized storage reservoir for the fluid. The pressurized storage reservoir is connected to a hydraulic system of the stored-energy spring mechanism by at least one channel element which projects into the pressurized storage reservoir and a pressurized channel which is connected to the channel element. The storage piston closes a subregion of the channel element starting from a specific piston stroke “s.” | 10-24-2013 |
| 20140054148 | SWITCHGEAR AND OPERATION MECHANISM FOR THE SAME - The circuit opening operation section of an embodiment of switchgear operation mechanism comprises: a circuit opening electromagnetic solenoid having a fitting structure that is provided with a step; and a solenoid spacer for adjusting the distance between a circuit opening trigger mechanism and the circuit opening electromagnetic solenoid. The circuit opening solenoid has: a solenoid housing fixed in position by way of the solenoid spacer; a plunger; and a stopper fitted to the solenoid housing so as to limit the sliding motion of the plunger in the plunger returning direction when the coil is not supplied with electric power. The limiting position of the stopper is adjustable. | 02-27-2014 |
| 20140262714 | SWITCHGEAR AND SWITCHGEAR OPERATING MECHANISM - A switchgear operating mechanism has: a ratchet wheel that rotates together with a closing shaft; a stop lever that enables contact between an energy storing cam and a roller; a motor that transmits power to a feed lever; a feed pawl; stop pawls that suppresses reverse rotation of the feed pawl; a closing lever that expands/contracts a closing spring; a catch mechanism for energy storage for the closing lever; a closing cam; a stopper unit that suppresses rotation of the stop lever; a first sprocket; second and third sprockets that are capable of rotating together with an intermediate shaft; a fourth sprocket rotatably fastened to an energy storing cam shaft; a first chain that engages with the first and second sprockets; and a second chain that engages with the third and fourth sprockets. | 09-18-2014 |
| 20140299455 | ELECTRIC POWER CIRCUIT BREAKER WITH ENERGY STORAGE DEVICE AND IMPROVED INDICATING DEVICE OF THE OPERATING STATE - An electric power circuit breaker with an energy storage device and an indicating device including an indicator lever with an indicator and an indicating cam of loaded and unloaded states of the loading mechanism. The indicating cam is mounted on the loading shaft in proximity to the loading cam, and includes a notch for receipt of the indicator lever when the mechanism is in the loaded state. The indicating cam includes a single ramp for progressively bringing the indicator lever into position up to the notch to guarantee latching of the opening latch maintained in a tripped position by the auxiliary release. | 10-09-2014 |
| 20150107973 | CONTROL OF SPRING(S) TYPE FOR A HIGH- OR MEDIUM-VOLTAGE BREAKER FURNISHED WITH A PAWLED FREE WHEEL COUPLING DEVICE - The invention relates to a spring controller for high- or medium-voltage electric switchgear, the controller having a free-wheel coupling device between a crank handle or a motor and the drive shaft ( | 04-23-2015 |
| 20150144474 | Electrical Switching Apparatus and Opening Assembly Therefor Having Engagement Lug - An opening assembly is provided for an electrical switching apparatus having a housing, separable contacts enclosed by the housing, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a poleshaft. The opening assembly includes a spring link comprising a first portion structured to be pivotably coupled to the poleshaft, and a second portion disposed generally opposite of the first portion. A number of opening springs each include a stationary end coupled to the housing, and a movable end coupled to the second portion of the spring link. The spring link is movable between an open position, wherein the opening springs bias the spring link and poleshaft to maintain full separation of the separable contacts, and a closed position, wherein the opening springs either do not bias the poleshaft or bias the poleshaft with a low level of torque. | 05-28-2015 |
| 20150294810 | SWITCH | 10-15-2015 |
| 20150311005 | CIRCUIT BREAKERS WITH CLOCK SPRING DRIVES AND/OR MULTI-LOBE DRIVE CAMS AND RELATED ACTUATORS AND METHODS - Spring operated actuator devices for an electrical circuit breaker and/or electrical switching device include at least one clock spring comprising a disc shaped body with gear teeth and a spiral spring, a cam shaft holding the at least one clock spring with an inner end portion of the spiral spring attached to the cam shaft, and a drive cam held by the cam shaft adapted to be in communication with a follower that directs an actuator to open or close a mobile contact to maintain open and closed energy status of the electrical circuit. The at least one clock spring is configured as a closing spring of the spring operated actuator. | 10-29-2015 |
| 20150325386 | CONTROL DEVICE OF THE SPRING TYPE PARTICULARLY FOR A HIGH-VOLTAGE OR MEDIUM-VOLTAGE CIRCUIT BREAKER OR SWITCH - The control device possesses a rigid main part combining most of the functional elements of this type of control device. It is made up of two portions of a rotary shaft, having placed between them a cam and a support arm that are connected together by a pivot that is offset relative to the axis of rotation. A toothed wheel having an inner set of teeth is placed around the support arm that is provided with a rachet system. The toothed wheel has an outer set of teeth-driven by a motor, via an intermediate gearwheel. The pivot controls the compression of the actuator spring by the assembly rotating. The device is applicable to high and medium voltage circuit breakers and switches. | 11-12-2015 |
| 20150348718 | SPRING CONTROL DEVICE FOR A CIRCUIT BREAKER - For application to medium- and high-voltage circuit breakers, the control device makes it possible to actuate opening of the circuit breakers used in the medium- and high-voltage networks very quickly. The spring used in the control device is a spring of the composite type, having a curved C- or Ω-shape. The spring has a stationary first end and a movable second end that is pivotally connected to the end of a lever device, that is itself constrained to rotate with the drive shaft of the control device. | 12-03-2015 |
| 20150364269 | ELECTRICAL SWITCHING APPARATUS, AND STORED ENERGY ASSEMBLY AND TORQUE REGULATOR ASSEMBLY THEREFOR - A torque regulator assembly is for a stored energy assembly of an electrical switching apparatus. The torque regulator assembly includes: a drive assembly including a gear and a transfer assembly disposed on the gear, the gear being structured to be cooperable with at least one charging mechanism of the stored energy assembly; and a shaft extending through the gear. The drive assembly is structured to move between a driving position and a non-driving position. In the driving position, the gear is cooperable with the transfer assembly to drive the shaft. In the non-driving position, the gear rotates independently with respect to the transfer assembly. | 12-17-2015 |
| 20160111229 | ELECTRICAL SWITCHING APPARATUS AND TRANSMISSION ASSEMBLY THEREFOR - A transmission assembly is for an electrical switching apparatus. The electrical switching apparatus includes a housing, a mount, at least one charging mechanism, and a pair of separable contacts. The transmission assembly has a drive assembly and a transfer assembly. The drive assembly includes a rotary driving member, a stored energy mechanism. and a linear driving member partially extending into the stored energy mechanism and being coupled to the rotary driving member. The transfer assembly cooperates with the drive assembly and the separable contacts and includes a sliding transfer component. The transmission assembly moves between a LOADED OPEN position, an UNLOADED CLOSED position, a LOADED CLOSED position, and an UNLOADED OPEN position. When the transmission assembly moves from the LOADED OPEN position to the UNLOADED CLOSED position, the linear driving member drives the sliding transfer component in a generally linear direction, thereby closing the separable contacts. | 04-21-2016 |
