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| Number | Title | Issue Date |
| 8168911 | Circuit breaker with improved arc quenching A circuit breaker having an arc quenching system is provided. The quenching system includes an ablative device positioned within a chamber. On end of the ablative device includes an opening that receives a stationary contact. A movable contact arm travels within a c... | 05/01/2012 |
| 7989726 | Electrical device containing insulating gas under pressure and including a composite insulator provided with a window for observing contacts The gas-tight, high or medium voltage electric switch device (1), containing an insulating gas under pressure, comprises switch contacts (2) capable of occupying an open position and a closed position and disposed inside a composite insulator formed by... | 08/02/2011 |
| 7875822 | Ablative-based multiphase current interrupter A multiphase current interrupter is provided for interrupting a phase current between two contacts in an electrical phase. The current interrupter includes a first ablative chamber disposed around contacts for a first electrical phase. The first chamber has an ablat... | 01/25/2011 |
| 7439469 | Electric switching device comprising an arc-quenching unit An electric switching device, designed to carry a low-voltage, in particular a circuit-breaker or contactor, having at least one arc-quenching unit (16;18) is provided. Connection contacts (8) are mounted in a housing (2) that can be sealed by a... | 10/21/2008 |
| 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 |
| 7247808 | Electrical service device having an arc prechamber area, arc guide rails and a current-limiting arc-quenching device The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connecting areas and connection means (2, 3) for the purpose of connecting busbars and/or connection lines on both end si... | 07/24/2007 |
| 7199318 | Air guidance device for cooling a switch part of an electrical switch An air guidance device is for cooling a switch part of an electrical switch. It includes at least one air guidance element arranged at a distance from the switch part to be cooled, forming at least one air duct which runs vertically when the switch is in the install... | 04/03/2007 |
| 7186941 | Arc extinguisher assembly for molded case circuit breaker An arc extinguisher assembly is provided for a mould cased circuit breaker capable of reducing time for arc extinguishing and preventing contacts from being damaged due to a back flow of an arc. To this end, the arc extinguisher assembly for a mould cased circuit br... | 03/06/2007 |
| 7094986 | ARC chute assembly The arc plates of an arc chute assembly for a circuit breaker are supported in spaced, stacked relation by a structural shell molded of a gas evolving resin. Generation of arc gases, that cool the arc thereby increasing the current interruption capability of the bre... | 08/22/2006 |
| 7081596 | Arc-quenching device for circuit breakers having double-break contacts The present invention relates to an arc-quenching device for circuit breakers having double-break contacts for use in low-voltage distribution systems. Provided around a prechamber (41) is a magnetic shield (91) for the purpose of intensifying the magn... | 07/25/2006 |
| 7034242 | Arc chute and circuit interrupter employing the same A circuit interrupter arc chute includes first and second support portions, an exit portion supported by the support portions, and a plurality of arc plates supported by the support portions. The exit portion has one or more vent openings. The arc plates have a firs... | 04/25/2006 |
| 7030288 | Conformable wound dressing A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms... | 04/18/2006 |
| 6977354 | Arc hood and power distribution system including the same An arc hood includes a housing having a first chamber with two ends, a top and a bottom having an opening, and a smaller second chamber disposed on the top of the first chamber. The smaller second chamber includes two ends, a top and a bottom. Each of the ends of th... | 12/20/2005 |
| 6917269 | Low-voltage circuit breaker with an electric arc extinction system An electric arc extinction chamber system, especially for low-voltage circuit breakers of very high nominal current intensities, wherein parallel electric arc extinction chamber inserts are provided in a housing extending over the entire width of a pole-face arc. Th... | 07/12/2005 |
| 6825431 | Arc chamber for low-voltage circuit breakers An arc chamber for low-voltage circuit breakers, whose particularity consists of the fact that it comprises: multiple substantially U-shaped metallic plates; an enclosure made of insulating material which is substantially shaped like a parallelepiped and comprises t... | 11/30/2004 |
| 6794595 | Electrical switchgear apparatus comprising an arc extinguishing chamber equipped with deionizing fins A circuit breaker comprises a pair of separable contacts arranged in an opening volume. A plurality of flat de-ionization fins are arranged inside an arc extinguishing chamber opening out onto the opening volume. The chamber is bounded by two opposite side walls, a ... | 09/21/2004 |
| 6791440 | Apparatus for electrically isolating circuit breaker rotor components An electrically isolating iso bearing for a circuit breaker is provided that comprises an inner surface, an outer surface, and a body extending therebetween, said inner surface comprising a pair of bosses and a pair of openings, said outer surface comprising at leas... | 09/14/2004 |
| 6765169 | Chamber cover fixing for arc quenching chambers for low voltage switchgear A chamber cover fixing is for arc quenching chambers for low voltage switchgears operating in air. The arc quenching chamber cover is fixed to the arch quenching chamber, by use of interlocking guide and lock elements, without the use of screws. In addition to the s... | 07/20/2004 |
| 6750746 | Electromagnetic switching device, especially contractor, with a contact bridge support lock An electromagnetic switching device, especially a contactor, includes a base, an arc chamber removable from the base, a contact bridge support and a spring-loaded locking element. The contact bridge support projects into the arc chamber and can be displaced in a dir... | 06/15/2004 |
| 6700466 | Contactor A contact apparatus is provided having a permanent magnet disposed in a region where a fixing contact point is mounted to a fixing contact and a movable contact to which a movable contact point is mounted. An arc generated between both the contact points ... | 03/02/2004 |
| 6624373 | Arc stack assembly for a circuit breaker A circuit breaker for interrupting the flow of current upon the detection of excess current or temperature is provided that contains an arc plate assembly which includes a pair of insulative mounting plates having mounted thereon a set of arc plates arran... | 09/23/2003 |
| 6512669 | Medium voltage motor control center instrument compartment A medium voltage controller for electrical equipment, such as motors, transformers, reactors, and capacitors, having an arc resistant cabinet, swaged internal electrical connections, a one-piece self-aligning withdrawable finger cluster, a pull-out instru... | 01/28/2003 |
| 6509817 | Multipolar circuit breaker A multipolar circuit breaker of great breaking capacity prevents arc gas from blowing out from the side at the time of cutting off a short-circuit current. A stationary contact and a movable contact generating arcs when a short-circuit current is cut off,... | 01/21/2003 |
| 6479781 | Arc chute assembly for circuit breaker mechanisms A current limiting circuit breaker mechanism having two pairs of separable contacts closely spaced for electrodynamic repulsion upon the occurrence of a short circuit overload condition utilizes a pair of arc chute assemblies to cool and extinguish the ar... | 11/12/2002 |
| 6388867 | Flexible seal for circuit breaker arc gas exhaust system A seal apparatus having a seal member and a plurality of fasteners is mounted on an arc hood of a cassette in a switchgear cabinet and resists leakage of arc gases through a gap between the arc hood and a circuit breaker mounted in the switchgear cabinet.... | 05/14/2002 |
| 6348666 | Pole for an electrical circuit breaker, equipped with an extinguishing chamber with dielectric shields An electrical circuit breaker pole comprises a stationary contact means, a movable contact means, and an arc extinguishing chamber comprising two side flanges, separators, a front opening situated near to the contact zone of the stationary contact means, ... | 02/19/2002 |
| 6297465 | Two piece molded arc chute An improved arc chute wrapper for an arc chute of a circuit breaker includes left and right halves that form a conjoined two-part member and that carry a plurality of spaced arc plates thereon. The left and right halves of the wrapper are formed with a pl... | 10/02/2001 |
| 6291788 | Vent screen with rejection features A vent screen for a use in a circuit breaker cassette having structural characteristics that allows it to be assembled correctly within the circuit breaker cassette and where the vent screen allows for the flow of arc gases from the arc chambers.... | 09/18/2001 |
| 6288621 | Pole for an electrical circuit breaker, equipped with a wide arc extinguishing chamber An electrical circuit breaker pole comprises an arc extinguishing chamber with two side flanges, a rear wall, separators, a front opening, a lower arcing horn electrically connected to the stationary contact and an upper arcing horn. The rear part of the ... | 09/11/2001 |
| 6288354 | Switching device with an arc extinguishing device A switching device with an arc extinguishing device includes filigree-shaped arc splitters of an arcing chamber to be mounted and fixed in an operationally reliable manner. Branches and bases of the arc splitters are kept apart by spacers, in particular b... | 09/11/2001 |
| 6262384 | Switching device having an arc extinguishing device A switching device is provided having an optimally used arcing chamber. To this end, a lower arc runner plate extends into a space located behind the arcing chamber, and an upper arc runner plate is positioned off from this space by an appropriate design ... | 07/17/2001 |
| 6248970 | ARC chute for a molded case circuit breaker A circuit breaker (10) including an electrical arc extinguishing apparatus (105). The electric arc extinguishing arc apparatus (105) includes a first sidewall (106) in a spaced relationship with the second sidewall (107) with a top arc plate (110) mounted... | 06/19/2001 |
| 6222146 | Arc extinguishing chamber for low voltage power switches An arc quenching chamber for low-voltage circuit breakers has a quenching chamber enclosure and a quenching chamber cover, which is detachably attached to the quenching chamber enclosure by fastening elements. Opposite a hollow extension the quenching cha... | 04/24/2001 |
| 6215654 | Switchgear assembly with integral control wiring wireway A switchgear assembly in which a number of cells housing electrical switching apparatus such as circuit breakers are vertically stacked in a forward compartment has combined arc shield/wire trays between cells for terminating secondary wiring for easy acc... | 04/10/2001 |
| 6207916 | Electric arc explosion chamber system An arcing chamber system having one or more chamber bodies connected in series, wherein one or more arcing chamber modules, are arranged in each chamber body is present. A plurality of arcing chamber modules may be employed to achieve for various contact ... | 03/27/2001 |
| 6150908 | Circuit breaker with metal melt isolation device An insulated container of a circuit breaker is divided into three vertically-arranged portions including a case, a middle case, and a cover. A fixed contact shoe and a movable contact shoe are accommodated in the case. An opening and closing mechanism and... | 11/21/2000 |
| 6100491 | Electric current switching apparatus having an arc extinguisher with an electromagnet An electric switch has an arc extinguishing mechanism that includes a plurality of splitter plates located adjacent to the switch contacts. An electromagnet coil is connected between one of the contacts and a splitter plate to produce a magnetic field tha... | 08/08/2000 |
| 6100778 | Movably disposed circuit breaker having a blow-out attenuator A movably disposed circuit breaker has a blow-out attenuator for cooling and deionizing switching gases escaping from an arc quenching chamber. The blow-out attenuator is composed of two telescopically interlocking sub-members. The one sub-member is fixed... | 08/08/2000 |
| 6087609 | Circuit breaker, arcing chamber housing for a circuit breaker and housing module for an arcing chamber housing A arcing chamber housing is disclosed for a circuit breaker with a double turning contact breaker. The arcing chamber housing (1) is composed of two housing modules (2, 3) and an extinguishing chamber (19) is arranged in the area of the fixed contact piec... | 07/11/2000 |
| 6054911 | Electrical switching device A switching device in which destructive stress on the contact carrier when short-circuit forces occur when ON is prevented. Stops on the arcing chamber limit the opening movement of the contact bridge before the contact spring is compressed to its block d... | 04/25/2000 |
