| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 337002000 | WITH SEPARATE DISTINCT DIVERSE ART-TYPE SWITCHING DEVICE (E.G., FLUID- OR MECHANICAL-ACTUATED) | 20 |
| 337003000 | Bimetallic device with other | 3 |
| 20130009743 | CIRCUIT BREAKER - A circuit breaker includes a short-circuit release and a thermal overload release. In at least one embodiment, the short-circuit release includes an armature and a pole which are disposed within a coil former, as well as a yoke plate and a terminal connection which are disposed around the coil former. The thermal overload release includes a metal strip made of at least two types of metal, around which a PTC thermistor is wound, wherein an electric insulator is disposed between PTC thermistor and metal strip. In at least one embodiment, the connection between the thermal overload release and the yoke plate is made by way of a separate bracket. | 01-10-2013 |
| 20130187746 | ELECTRICAL SWITCH - An electrical switch is disclosed, especially an electrical circuit breaker, including an overcurrent tripping device which, in the event of an overcurrent situation, switches off the flow of current through the switch; and a thermal tripping device which, in the event of a thermal overload, switches off the flow of current through the switch. In at least one embodiment, the overcurrent tripping device includes a first shaft which is disposed such that, in the event of an overcurrent situation, it is rotated from a first position into a second position and thereby indicates the overcurrent situation; and the thermal tripping device includes a second shaft which is disposed such that, it is rotated in the event of a thermal overload and is also rotated as well in the event of a rotation of the first shaft and when rotated initiates a switching-off of the switch. | 07-25-2013 |
| 20130207768 | THERMOMAGNETIC TRIP FOR SMALL CURRENT RANGES - A thermomagnetic trip is disclosed for an electrical switching device, especially a circuit breaker. In at least one embodiment it includes at least one first and one second terminal, a first heating element, a conductor able to be influenced by temperature, a yoke and a clapper armature. A current path is formed through at least the first terminal, the conductor, the first heating element and the second terminal. The current path is disposed at least in sections on and/or in the yoke such that a magnetic field acting on the clapper armature is induced in the yoke by the current flowing through the current path and wherein a second heating element is disposed in the current path especially between the first terminal and the conductor. | 08-15-2013 |
| 337004000 | Fusible element device with other | 17 |
| 20090128280 | FUSIBLE SWITCHING DISCONNECT MODULES AND DEVICES - A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and switchable contacts for connecting the fuse to circuitry. A tripping mechanism is provided to disconnect the switchable contacts when predetermined circuit conditions occur. | 05-21-2009 |
| 20120133477 | RENEWABLE ONE-TIME LOAD BREAK CONTACTOR - An electrical contactor with high DC and AC interrupt capability is disclosed. The invention is intended for applications where load break capability is only required under abnormal operating conditions. Under overload conditions, an alternate path is automatically provided through a sacrificial fuse to divert current from opening, or open and arcing, contacts such that the fuse interrupts the fault current and not the contacts. The current rating of the sacrificial fuse may be orders of magnitude less than the normal carry current of the contactor. The contactor provides a one-time load break function that is renewable by the replacement of a fuse. | 05-31-2012 |
| 20130307660 | FUSE SECURING STRUCTURE FOR POWER SOURCE CIRCUIT CUTOFF DEVICE - Provided are: a plug body including a main body housing, a fuse having a pair of terminals protruding outside the main body housing with the fuse being accommodated in the main body housing, and a cover attached to the main body housing; a circuit accommodating body configured to accommodate a pair of terminals on a mating side connected to the pair of terminals of the fuse; a rotatable lever connected to the plug body and the circuit accommodating body and configured to connect and disconnect between the pair of terminals of the fuse and the pair of terminals on the mating side; and a fuse biasing portion configured to bias the fuse accommodated in the main body housing toward the cover. | 11-21-2013 |
| 20140043133 | ARCLESS FUSIBLE SWITCH DISCONNECT DEVICE FOR DC CIRCUITS - A fusible switch disconnect includes a fuse, a primary switch connected in series with the fuse. and a semiconductor switch device connected in parallel with the fuse. The semiconductor device is configured to resist current flow through the fuse and the primary fuse to facilitate arcless operation of the primary switch when connected to energized, DC circuitry. | 02-13-2014 |
| 20140091893 | CHANGING THE STATE OF A SWITCH THROUGH THE APPLICATION OF POWER - A switch includes a spring. The switch further includes a collapsing element. The spring has a first state in which it is being held in tension by a restraining element and a second state in which it is not being held in tension because the restraining element has failed. The collapsing element is situated such that when sufficient power is applied to the collapsing element heat from the collapsing element will cause the restraining element to fail. The switch further includes a first contact coupled to the spring. The switch further includes a second contact coupled to the spring. The first contact and the second contact are separate from each other when the spring is in the first state. The first contact and the second contact are electrically connected to each other when the spring is in the second state. | 04-03-2014 |
| 20170236672 | FUSE CASE AND CASE COVER OF VACUUM CONTACTOR | 08-17-2017 |
| 337005000 | Diverse art-type switching device responsive to the condition of fusible element | 5 |
| 20090027153 | Metal oxide varistor with heat protection - A metal oxide varistor with heat protection has a body, an insulated washer, a first lead, a second lead and a thermal fuse. The body has two sides and two contacts respectively on the sides. The insulated washer is attached to one contact and has a through hole. The first lead is mounted on the other contact. The second lead is mounted on the insulated washer. The thermal fuse is mounted on the insulated washer and electrically connects to the second lead and the second contact. When the body overloads and overheats, the thermal fuse causes the circuit to open quickly, and the insulated washer keeps the thermal fuse from electrically connecting to the second contact again. | 01-29-2009 |
| 20110298576 | TRIPPING UNIT FOR CIRCUIT BREAKER - A tripping unit is configured to send an electrical tripping-signal to a switching unit of a circuit breaker so as to trip main contacts of main circuits of the circuit breaker in response to a detection of a current being above a predetermined level in at least one of the main circuits. The tripping unit includes a fuse configured to be connected in series to a main circuit of the circuit breaker and a detection unit connected in parallel with the fuse and configured to generate the tripping signal for the switching unit in response to the fuse being blown. | 12-08-2011 |
| 20120268233 | SWITCHGEAR UNIT FOR SWITCHING HIGH DC VOLTAGES - A switchgear unit switches high DC voltages, particularly for interrupting of direct current between a direct current source and an electrical device. The switchgear unit contains two connections which project from a housing and which are electrically conductively coupled by a conductor path, a contact system which is arranged between the first and second connections and an isolating apparatus that can be tripped by a thermal fuse. The thermal fuse contains a melting location which is arranged in the conductor path and which is connected first to the contact system and second via a moving conductor section to the first connection. The isolating apparatus is tripped and the connection between the conductor section and the contact system is broken at the melting location when an arc produced when the contact system is opened has caused the melting temperature of the melting location to be reached or exceeded. | 10-25-2012 |
| 20140104032 | METHOD AND APPARATUS FOR BLOWN FUSE DETECTION - A blown fuse detector according to an exemplary aspect of the present disclosure includes, among other things a fuse and a resistor in series with a circuit breaker. The circuit breaker and the resistor are in parallel with the fuse and the circuit breaker is configured to trip when the fuse blows. | 04-17-2014 |
| 20140292472 | Electric Device - An electric device includes an electric element having an element terminal and a conductive spring being deflected. The spring is electrically coupled to the element terminal by a fusible joint. A switch includes a first monitor terminal and a second monitor terminal. The state of the switch is changeable between a first connection state, where the first monitor terminal and the second monitor terminal are electrically coupled, and a second connection state, where the first monitor terminal and the second monitor terminal are electrically decoupled. When the joint fuses, the spring relaxes, thereby decoupling the spring and the element terminal and changing the state of the switch. | 10-02-2014 |
| 337006000 | With automatic circuit-interrupting device | 4 |
| 20130127583 | DEVICE FOR PROTECTING AN ELECTRICAL CIRCUIT FED BY AN ALTERNATING CURRENT WHICH CAN BE INTEGRATED INTO A CONTACTOR - Device for protecting an electrical circuit fed by an alternating current, comprising a housing and a fuse element disposed in the housing. The housing comprises a first portion and a second portion which are mobile in relation to one another, and elastic means suitable for causing the first portion to bear against the second portion and causing the housing to be set in a closed state. | 05-23-2013 |
| 20160012984 | INHERENTLY FAIL-SAFE CIRCUIT BREAKER ASSEMBLY | 01-14-2016 |
| 20160056004 | ELECTRICAL PROTECTION ASSEMBLY - An electrical protection assembly has a pin insulator to define a first mounting structure, a fixed arm proximate an operatively upper end of the pin insulator, and an insulator arm extending from an operatively lower end of the pin insulator, with a proximate end of the insulator arm being removably securable to the pin insulator, and a first rocker arm pivotally mounted relative to the fixed arm. The first rocker arm terminates at a first end and a second end, with a fusible device being supportable between the first end of the first rocker arm and a distal end of the insulator arm, to define a fuse carrier section, and with a voltage surge protection unit being supportable between the second end of the first rocker arm and the operatively lower end of the pin insulator, to define an over voltage protection section. | 02-25-2016 |
| 337007000 | Multiphase of multipole | 1 |
| 20140266560 | MULTI-POLE FUSE-COMBINATION ARRANGEMENT FOR BUSBAR SYSTEMS - The present invention relates to a multi-pole switch-fuse arrangement having at least two switch-fuse units into which one fuse link each can be inserted. The switch-fuse arrangement comprises a switching device for closing and breaking the circuits of all switch-fuse units, the switch-fuse arrangement comprising a switching lever, a housing, a drive rod, and a lever mechanism device for actuating a drive rod. | 09-18-2014 |
| 337008000 | Manually operable mechanical device | 2 |
| 337010000 | Rotary or reciprocating mechanism | 2 |
| 20110227692 | ROCKER SWITCH UNIT WITH FUSE - It is disclosed a rocker switch unit with fuse, the unit comprising a housing; a rocker switch lodged pivotally in the housing; at least a fuse lodged in the housing and at least two connection elements for connecting the rocker switch unit with an external element, wherein the two connection elements are connected to each other by the fuse, when rocker switch is in an ON-position. According to the invention the housing provides at least one blind hole for accommodating the fuse, wherein one end of the fuse serves as a first connection element for connecting the rocker switch unit with the external element. The rocker switch unit as discloses herein can be used in any apparatus, in a network filter or as IEC entry plug. | 09-22-2011 |
| 20190148100 | HIGH VOLTAGE COMPACT FUSIBLE DISCONNECT SWITCH DEVICE WITH MAGNETIC ARC DEFLECTION ASSEMBLY | 05-16-2019 |
