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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8188819 | 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... | 05/29/2012 |
| 8159321 | Production method for an electromagnetic switching device having partition walls between primary and auxiliary contacts and an electromagnetic switching device produced according to the production method In one embodiment of the present invention, a production method for an electromagnetic switching device includes the following steps in the sequence listed: producing a one-piece switching chamber, producing a contact bridge carrier and equipping the contact bridge ... | 04/17/2012 |
| 7990240 | Epoxy sealed relay A relay assembly is provided that includes an intermediate member to aid in coupling a wire to a housing. ... | 08/02/2011 |
| 7978036 | Method and device for the secure operation of a switching device A method and a device are disclosed for the secure operation of a switching device including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and at least one control magnet which include... | 07/12/2011 |
| 7924123 | Method and system for adjusting an electromagnetic relay An electromagnetic relay has a solenoid formed from a wound coil, a movable contact-point block having a movable iron core, an insulation holder integrated with the upper end portion of the movable iron core and a movable contact piece which is biased toward and sup... | 04/12/2011 |
| 7902947 | Electromagnetic contactor Electromagnetic contactor comprising a winding (6) for generating a magnetic field, a magnetic circuit comprising a stationary portion (7) and a mobile portion (8), and an electronic board (11) comprising means of controlling the power su... | 03/08/2011 |
| 7889033 | Electromagnetic device with displaceable connections An electromagnetic switching device for controlling a branch includes, in at least one embodiment, a housing with a length in a longitudinal direction, with a first end side, which is oriented at right angles with respect to the longitudinal direction, and with a se... | 02/15/2011 |
| 7872552 | Method and device for the secure operation of a switching device A method and a device for the secure operation of a switching device are disclosed, including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and also at least one control magnet which i... | 01/18/2011 |
| 7843291 | Integrated maglatch accessory An apparatus for indicating a condition of a molded case circuit breaker, with the circuit breaker defining an accessory pocket in communication with an operating mechanism and a trip unit of the circuit breaker, including a mount member operatively coupled to one o... | 11/30/2010 |
| 7821364 | Connecting system comprising an electromagnetic switchgear device, especially contactor, and a connector A connecting system includes an electromagnetic switchgear, especially contactor, and a connector. In at least one embodiment, the system makes it easier to connect auxiliary and control lines. For this purpose, the connecting system, in at least one embodiment, inc... | 10/26/2010 |
| 7812696 | Method and device for securely operating a switching device A method and a device for secure operation of a switching device including at least two main contacts which can be switched on and off and include contact pieces and a displaceable contact bridge, and a control magnet having a displaceable anchor. The method may inc... | 10/12/2010 |
| 7679477 | Contactor with modular connection of the coil A contactor with modular connection of the coil according to the invention comprises an insulating body, an operating coil housed in the insulating body, and means of modular connection of the coil to an external circuit so that the coil can be powered. The coil con... | 03/16/2010 |
| 7515024 | Movement mechanism for a ground fault circuit interrupter with automatic pressure balance compensation A magnetic movement mechanism usable in a ground fault circuit interrupter, comprising: (i) a first permanent magnet, (ii) a second permanent magnet positioned apart from the first permanent magnet, (iii) a soft magnet positioned between the two permanent magnets, (... | 04/07/2009 |
| 7479858 | Reverse current relay Contactor-circuit breaker comprising a control electromagnet and a protection device both capable of acting on mobile contacts in response respectively to a deliberate control and to a detected electrical fault, through a multi-pole device. An electromagnetic trippi... | 01/20/2009 |
| 7474183 | System and method for latching magnetic operator device A latching electromagnetically actuable device comprises an electromagnet and an electrical coil. The electromagnet comprises an armature and a core. At least one of the armature and the core is of a magnetically hard material. A housing supports the electromagnet a... | 01/06/2009 |
| 7432789 | Electromagnetic switching device An electromagnetic switching device includes an electromagnetic drive device and at least one electrical contact that, when a starting current is applied to the drive device, can be transferred by the drive device from a disconnect position (contact opened) into a b... | 10/07/2008 |
| 7423504 | Electromagnetic relay An electromagnetic relay is provided which is capable of reducing a contact bounce at time of closing a contact. The electromagnetic relay is so configured that an opposed angle θ is 0° | 09/09/2008 |
| 7420446 | Circuit breaker The circuit breaker of this invention comprises a pair of stationary contactors 2, 3 which are respectively provided with stationary contacts 2a, 3a, a movable contactor 4 which includes a pair of movable contacts 4 | 09/02/2008 |
| 7414501 | Electromagnetic switch for starter An electromagnetic switch mounted on a starter for cranking an internal combustion engine includes an excitation coil for driving a plunger upon supplying electric current to the excitation coil. A conductor member led out from the excitation coil is connected to an... | 08/19/2008 |
| 7369022 | Auxiliary switch sub-assembly and electrical switching apparatus employing the same An auxiliary switch sub-assembly is provided for a telecommunication system circuit breaker including a housing having an opening, separable contacts inside the housing, and an operating mechanism operating the separable contacts between open and closed positions. T... | 05/06/2008 |
| 7354292 | Low profile latching connector and pull tab for unlatching same A small, low-profile plug connector for use with electronic devices provides a latching member with a pair of hooks that engage mating holes in a guide frame, and which can be easily delatched from the guide frame or opposing connector or housing. The hooks lock the... | 04/08/2008 |
| 7355503 | Fuse switch Fuse switch having a housing for receiving contacts and a fuse holder, which has a receptacle for a fuse element, and which is mounted in the housing such that it can pivot between at least one first and one second operating position, in which the housing receives a... | 04/08/2008 |
| 7351927 | Electrical switch, conductor assembly, and independent flexible conductive elements therefor A flexible conductive element is provided for the conductor assembly of an electrical switching apparatus. The conductor assembly includes a load conductor, a movable contact assembly including a number of movable contact arms, movable electrical contacts mounted on... | 04/01/2008 |
| 7342474 | Circuit breaker configured to be remotely operated A circuit breaker configured to be remotely operated is disclosed. The circuit breaker includes a set of main contacts configured to connect between an electrical source and an electrical load, an operating mechanism in operable communication to open and close the m... | 03/11/2008 |
| 7336466 | Contactor material for welding wire feeder An electromechanical contactor device is disclosed for use in a wire feeder for an electric arc welder having a power source and a gun with a contact tip through which welding wire is fed and a weld cycle start trigger switch having a closed condition to initiate an... | 02/26/2008 |
| 7332989 | Switch mechanism A switch mechanism has at least one set of contacts including at least one fixed contact and at least one moveable contact which is carried by an axially moveable carrier that is held by a spring-loaded detent when the contacts are closed, the carrier being released... | 02/19/2008 |
| 7319373 | Electrical switching apparatus and terminal housing therefor An auxiliary switch terminal housing is provided for a telecommunication system circuit breaker including an enclosure, separable contacts inside the enclosure, line and load terminals in electrical communication with the separable contacts, an operating mechanism f... | 01/15/2008 |
| 7317264 | Method and apparatus to independently control contactors in a multiple contactor configuration A method and apparatus to independently control the closing or making of contactors in a modular contactor assembly is disclosed. The apparatus includes a contactor assembly having multiple contactors such that each contactor is separately controlled such that one c... | 01/08/2008 |
| 7301742 | Method and apparatus for accessing and activating accessory functions of electronic circuit breakers An electronic trip unit for a circuit breaker includes a programmed microprocessor and a module plug in removable signal communication with the microprocessor. The module plug includes a program identifier. The microprocessor recognizes the program identifier and ac... | 11/27/2007 |
| 7286031 | Supporting structure of fixed contact terminals In the supporting structure of fixed contact terminals, a pair of fixed contact terminals with respective fixed contacts provided on their free ends are supported by fixed contact bases and the both ends of a movable contact piece contact with and separate from the ... | 10/23/2007 |
| 7268987 | Motor starter device A motor starter device having an elongated base provided with power poles acted upon by a contactor part and a protection part. The base houses power current lines 15 and their control mechanism 20. Two movable linkages (30, 40) are associated w... | 09/11/2007 |
| 7265311 | Arc chamber barrier with interlocking top for circuit breaker An arc chamber barrier for a circuit breaker is provided. The arc chamber barrier has a body with a first interlock component that is structured to engage a second interlock component disposed in the circuit breaker primary cover. The arc chamber barrier body is fur... | 09/04/2007 |
| 7253637 | Arc fault circuit interrupter system In order to determine whether arcing is present in an electrical circuit, a sensor signal corresponding to current in said electrical circuit is processed. The sensor signal is filtered to determine the presence of noise in a predetermined frequency range and produc... | 08/07/2007 |
| 7227279 | Phase deficiency display device for thermal magnetic type molded case circuit breaker Disclosed is a display device for a thermal magnetic type molded case circuit breaker capable to display a phase deficiency occurred on a line to a user such that the user rapidly deals with the phase deficiency and prevents loss caused by over-heating generated due... | 06/05/2007 |
| 7210970 | Circuit breaker with improved connector socket A shouldered connector pin socket (14) is shown having an open channel (14a) formed in the face surface of a wall member of a circuit breaker housing. An electrically conductive spring member (16, 16′) is received over the channel and i... | 05/01/2007 |
| 7196434 | Modular contactor assembly having independently controllable contractors The present invention provides an electrical isolation apparatus having independently controllable contactors. The isolation apparatus includes a contactor for each phase or pole of an electrical device as well as each phase or pole of a load. Each contactor is cons... | 03/27/2007 |
| 7193497 | Ignition coil An ignition coil. The ignition coil includes a casing, a bobbin, and a core. The bobbin includes a body, a primary coil surrounding the body, a secondary coil surrounding the body, a plurality of first terminals embedded in the body, and two secondary coils embedded... | 03/20/2007 |
| 7179139 | Electrical connector with improved terminal block An electrical connector (100) comprises a terminal block (1) and a plurality of terminals (2). The terminal block (1) comprises an inner wall (11), an outer wall (12) opposite to the inner wall (11) and a plurality of... | 02/20/2007 |
| 7167348 | Miniaturized motor overload protector A Digital Programmable Motor Overload Protector includes a base module and a detachable, removable user interface module interfaced through a serial communications link. The base module provides motor overload analysis through a programmable Digital Signal Processor... | 01/23/2007 |
| 7157996 | Electromagnetic switching device In the electromagnetic switching device, it is possible to miniaturize and have low costs, have quiet operation noise, and also quickly extinguish the arc. The electromagnetic switching device has an electromagnetic actuator with a movable iron core, a pair of fixed... | 01/02/2007 |
