Quotables
"This is the patent age of new inventions for killing bodies, and for saving souls. All propagated with the best intentions."
Lord Byron ;
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 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 |
| 6911883 | Electrical switchgear comprising several housing parts A switching chamber enclosure includes a number of enclosure parts with specific functional subdivision, in which switching elements are arranged. The enclosure of the switching device is formed at least by one lower shell and one upper shell, which are separated fr... | 06/28/2005 |
| 6594126 | Method and apparatus for extinguishing an arc through material surface ablation A technique is provided for forcing greater voltage investment in an arc developed during interruption of a current carrying path. A source element is provided in a secondary current carrying path parallel to a primary path through the device. Upon interr... | 07/15/2003 |
| 6518530 | Current-limiting contact arrangement A current-limiting contact arrangement includes a conductor rail including a stationary contact and including two current loops extending at opposite sides of the conductor rail in respective planes parallel to a center plane of the contact arrangement. A... | 02/11/2003 |
| 6206699 | Activity book with extrudable illustration feature The present invention is directed to an activity book designed to make reading more enjoyable and educational for young readers. The activity book of the present invention comprises at least one illustrated page with at least one opening on the page throu... | 03/27/2001 |
| 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 |
| 6064024 | Magnetic enhanced arc extinguisher for switching assemblies having rotatable permanent magnets in housings mounted to fixed contacts A DC contactor has stationary and movable contacts. A magnet is rotatably mounted adjacent to the stationary contact within a self magnetic field produced by the flow of electric current in the stationary contact. The magnet rotates so that its magnetic f... | 05/16/2000 |
| 5877464 | Electric current switching apparatus with dual magnet arc spinning extinguisher An electric arc extinguishing mechanism for an electric current switching apparatus employs a plurality of splitter plates in a conventional arc chute arrangement. Each splitter plate has a pair of permanent magnet structures that produce a magnetic field... | 03/02/1999 |
| 5866864 | Electric current switching apparatus with arc spinning extinguisher An electric arc extinguishing mechanism is provided for an electric current switching apparatus of the type having a pair of contacts which selectively engage to complete an electric circuit. The mechanism includes a plurality of splitter plates located a... | 02/02/1999 |
| 5818003 | Electric switch with arc chute, radially converging arc splitter plates, and movable and stationary arc runners A contactor for switching electric current has a stationary contact and a movable contact which when driven by a solenoid moves into and away from abutment with the stationary contact. An arc chute includes a plurality of splitter plates which extend radi... | 10/06/1998 |
| 5763847 | Electric current switching apparatus with tornadic arc extinguishing mechanism A contactor for switching electric current has a stationary contact and a movable contact which when driven by a solenoid moves into and away from abutment with the stationary contact. An arc extinguishing chamber is adjacent to the movable and stationary... | 06/09/1998 |
| 5616898 | Medium-voltage or high-voltage circuit-breaker A medium-voltage or high-voltage circuit-breaker including, in a casing filled with a dielectric gas, an interrupting chamber in which metal plates are disposed for splitting up an electric arc into a multitude of smaller or "elementary" arcs under the ac... | 04/01/1997 |
| 5589672 | Circuit breaker with arc quenching device and vent A circuit breaker is formed of a stationary contact member bent back into a U-shape and having a stationary contact at a bent back portion thereof, a moving contact member situated adjacent to the stationary contact member to be able to contact with the s... | 12/31/1996 |
| 4970482 | Current limiting circuit breaker compact arc chute configuration A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker fixed and movable contacts become separate... | 11/13/1990 |
| 4963849 | Compact current limiting circuit breaker A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker contacts become separated upon intense ove... | 10/16/1990 |
| 4761626 | Circuit breaker In a circuit breaker includes a fixed contactor, a moving contactor subjected to a switching operation of a switching mechanism, a heater connected to the moving contactor and disposed in such a manner as to extend along a fixed core and a moving core piv... | 08/02/1988 |
| 4568805 | J-Plate arc interruption chamber for electric switching devices An arc interruption structure for an electric switching device such as a contactor having one or more J-plates (38,42,46,48) adjacent to but insulated from each contacts gap provided by stationary contacts (20,22) and a movable bridging contact (24) of th... | 02/04/1986 |
| 4511772 | Arc extinguishing structure for electrical switching device An arc extinguishing structure for a circuit breaker (2) wherein an arc chute is provided with a pair of transverse barrier plates (38) spaced apart to provide a centrally located opening (40) and spaced away from an upstanding wall (4a) of the breaker ho... | 04/16/1985 |
| 4266210 | Circuit breaker with improved arc extinguishing means This invention relates to circuit breakers and more particularly to circuit breakers for industrial power circuits with 10,000 amp interrupting capacity and 240 V ratings. This invention provides a novel arc shield arrangement whereby two arc shields are ... | 05/05/1981 |
| 4258345 | Circuit interrupter with magnetic arc stretcher A molded case circuit breaker includes separable contacts, a conventional operating mechanism, and means for magnetically stretching the arc upon contact separation to provide current limiting action. In a first embodiment, the arc stretcher comprises thr... | 03/24/1981 |
| 4041356 | Air-break circuit interrupter having magnetically-assisted arc-dividing electrodes Air-break circuit interrupter having a plurality of stacked plates of insulating material straddled at the lower edge thereof by electrodes including diverging wing portions extending between the plates to permit the initial arc to be divided by the base ... | 08/09/1977 |
