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| Number | Title | Issue Date |
| 8242395 | Circuit breaker compartment arc flash venting system The present invention relates generally to a switchgear apparatus. More particularly, the invention encompasses a circuit breaker compartment arc flash venting system for a switchgear apparatus. The present invention also relates to enclosures for switchgear, panel ... | 08/14/2012 |
| 7368679 | Arrangement comprising a low voltage power switch and a switching gas damper provided with a carrier element and used for the low voltage power switch A switching gas damper is for low voltage power switches, especially for low voltage power switches which can be inserted into low voltage switching installations. The switching gas damper is arranged above an arc extinguisher of the low voltage power switches and i... | 05/06/2008 |
| 7310221 | Switching installation provided with an electrically insulating barrier A switching installation (5) having a circuit breaker (12), which is connected to a cable connection (33), and optionally a disconnector (14) for making or breaking a conductive connection between the cable connection (33) and a ra... | 12/18/2007 |
| 7236352 | Arc resistant switchgear having dedicated vertical plenums An arc resistant switchgear assembly is provided having a front wall, a rear wall, a bottom surface, an upper surface, a first side wall, and a second side wall opposed to the first side wall and spaced a first distance from the first side wall, with each of the fir... | 06/26/2007 |
| 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 |
| 7151236 | Push-button electrical switch with deformable actuation and method for making same A switching device intended for assembly on an electric printed circuit mounting plate includes contacts to be electrically connected when a switching operation is performed. The switching device includes a switch component associated with an actuator, which allows ... | 12/19/2006 |
| 7034241 | Efficient venting means for a circuit breaker An arrangement for reducing pressure inside a circuit breaker caused by gas produced during an electrical interruption event, including a base, an interrupter assembly, and a trip unit base. A structure having a surface is positioned in the base at an angle relative... | 04/25/2006 |
| 7005576 | Permissible controller cover resistant to fastener breakage An assembly includes a structural member or frame that supports a load. The frame has a rectangular opening therein to a cavity within the frame that is adapted to house electrical components therein. There are a plurality of opening screw holes in the frame and spa... | 02/28/2006 |
| 6960736 | Switching gas damper for low-voltage power circuit breakers A switching gas damper for low-voltage power circuit breakers, is arranged as an attachment above the arcing chambers for additional damping, deionization and cooling of the switching gases. The switching gas damper includes a cuboid enclosure with separate inlet op... | 11/01/2005 |
| 6917003 | Switch for vehicle A switch is used to detect opening/closing of a car door or the like in a vehicle, and the switch can be provided with a nice operation feeling and stable performance. Thin corrugated sections are provided on a cover that covers a switching-element, connection point... | 07/12/2005 |
| 6897760 | Circuit breaker A circuit breaker includes a rectangular box-shaped intermediate housing and lower housing; a power supply side fixed contact and a load side fixed contact disposed in the intermediate housing and facing each other; and a movable contact housed in the lower housing ... | 05/24/2005 |
| 6844514 | Arc extinguisher with an attachment for low voltage switchgear An arc extinguisher for low voltage switchgear, switching in air, includes a universally applicable variable attachment for adjustment of the arc extinguisher chamber to meet increased demands. The attachment is in the form of a chimney-like arc extinguisher chamber... | 01/18/2005 |
| 6797906 | Membrane switch, key switch using membrane switch, keyboard having key switches, and personal computer having keyboard A membrane switch is constituted of a lower membrane sheet, an upper membrane sheet and a spacer sheet which is inserted between both sheets, and a spring sheet which is formed of a thin metal plate arranged over the upper membrane sheet. A pair of slits formed in t... | 09/28/2004 |
| 6750743 | Integrated thermal and magnetic trip unit A circuit breaker for a multi-pole electrical distribution circuit includes a cassette associated with each pole in the multi-pole electrical distribution circuit. Each cassette includes a housing, a pair of electrical contacts disposed in the housing, and a thermal... | 06/15/2004 |
| 6670872 | Low-voltage circuit breaker with an arc-extinguisher chamber and a switching gas damper A low-voltage circuit breaker (1) has an arc-extinguishing chamber (2) and a switching gas damper (4) which consists of two partial bodies (6, 7) that are displaceable in relation to each other. One (6) of the partial bodies (6, 7) is fixed to the circuit... | 12/30/2003 |
| 6600116 | Switch mounting structure A mounting structure for mounting a switch device includes a main body case for the switch device having slots formed in lower portions of the front and rear surfaces, and mounting plates to be inserted into the slots. Each mounting plate has a screw hole... | 07/29/2003 |
| 6600120 | Membrane switch arrangement with chamber venting There is provided a switch having a flexible upper member, that is substantially electrically non-conductive, having an inner surface with an upper contact area that is electrically conductive and connected to a circuit, and a lower member that is substan... | 07/29/2003 |
| 6576854 | Waterproof switch The invention provides a waterproof switch which can electrically open and close an door of a vehicle body by a switch, can achieve a seal between a waterproof switch and a panel and a seal against an inner portion of the waterproof switch by one seal mem... | 06/10/2003 |
| 6515850 | Module combined with an electromagnetic switch appliance The present invention relates to a power supply control module for loads or motors, which is mounted as an addition under a main electromagnetic switch appliance (Ap) and having, in a casing (1), current paths with commutating poles controlled by an elect... | 02/04/2003 |
| 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 |
| 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 |
| 6204460 | Sealed contact device, a method of producing a sealed contact device, and a sealing method A configuration for forming a gastight space is prevented from being projected from a housing, so that a projection is not formed on the housing. A sealed contact device includes a housing including a container body having an open end portion, the contain... | 03/20/2001 |
| 6198063 | Circuit breaker terminal cover with integrated arc chamber vents A multi-phase circuit breaker assembly 10 includes a circuit breaker 12 having a housing 13 containing circuit breaker operating components and having a gas venting chamber 22 associated with each phase of the circuit breaker. The circuit breaker has a pl... | 03/06/2001 |
| 6066812 | Layered structure for keyswitch A layered structure for a keyswitch includes a lower flex circuit layer, an upper flex circuit layer and a spacer layer therebetween. A plurality of projecting flanges are arranged radially and extending from through holes formed in the spacer layer. The ... | 05/23/2000 |
| 6037555 | Rotary contact circuit breaker venting arrangement including current transformer A rotary contact circuit breaker having a venting arrangement to vent gasses operated by a short circuit interruption to a location substantially above the load strap of the breaker whereby electrical components are not damaged by the gasses and ionized g... | 03/14/2000 |
| 6002313 | Molded case circuit breaker with pressure release mechanism A circuit interrupter including an operating mechanism and separable main contacts interconnected with load and line terminals has an interface region between the top and bottom portions of the completed housing thereof, which may be of reduced cross sect... | 12/14/1999 |
| 5895900 | Pressure sensitive seat switch with air vent passages A pressure sensitive switch includes a first insulating film provided on one surface thereof with an electrode sheet and an insulating spacer having one surface connected to one surface of the first insulating film and a thickness. The insulating spacer i... | 04/20/1999 |
| 5878905 | Container-type switchgear Switchgear, such as gas-insulated, metal-encapsulated high-voltage switchgear, is accommodated in a container. The container has a side wall formed with an opening. An outwardly opening flap closes the opening in the normal situation. Upon a sudden pressu... | 03/09/1999 |
| 5879088 | Computer keyboard with adjustable force keystroke feature using air pressure A computer keyboard 10 having a plurality of keys 18 at desired locations being supported above a support plate 20 having a plurality of apertures 22 at the desired locations. A membrane keyswitch assembly 24 is mounted on the support plate 20 having keys... | 03/09/1999 |
| 5841086 | Brake master cylinder and brakelamp switch assembly A brake master cylinder assembly includes a brake master cylinder housing having a rear end surface separated from a front end surface by a side surface, and defines an inner cavity that opens through the front end surface. At least one plunger is positio... | 11/24/1998 |
| 5811749 | Electrical switching device with blow-out channels for arc gases An electrical switch is intended to prevent hot arc gases from contacting the terminal screw units. The arc gases are to flow off in an already deionized manner so that no damage is caused even when they flow out towards the electric cable terminals witho... | 09/22/1998 |
| 5753878 | Circuit breaker having variable arc gas venting Circuit breaker arc exhaust apertures in the line end of the circuit breaker case transfer arc gases from the circuit breaker interior during overcurrent circuit interruption. A flexible shield protects the circuit breaker terminal lug from arc gas contam... | 05/19/1998 |
| 5569894 | Circuit breaker arc quenching device with venting structure including flapper valve An arc quenching device for a circuit breaker having a stationary contact member and a moving contact member includes a magnetic element formed of an arc quenching core and a base plate. The arc quenching core includes a back wall, and two side walls exte... | 10/29/1996 |
| 5519179 | Pressure switch This invention provides a pressure switch and a method of manufacture thereof, which allow the air vent hole to be formed very small in diameter so that the engine oil can be reliably prevented from flowing out through this air vent hole. The reduced diam... | 05/21/1996 |
| 5493092 | Shield for a line side of a circuit breaker for supporting cable and deflecting ionized gases A shield structure on the line side of a circuit breaker has several adjacent channels for carrying ionized gases and cables electrically connected to a line terminal assembly. The shield structure has a main portion and a stepped portion which directs th... | 02/20/1996 |
| 5471022 | Pneumatic acutated switch A diaphragm assembly for movement in response to a pressure increase exerted thereon comprised of a resilient flexible diaphragm having a first surface with a predetermined profile when said diaphragm is in a neutral, unflexed condition, the diaphragm hav... | 11/28/1995 |
| 5457296 | Circuit breaker enclosure An enclosure, for a circuit breaker, is provided with a venting arrangement to allow release of internal pressure caused by a short circuit fault condition in the circuit breaker. The venting arrangement is provided in the form of a blow out panel mounted... | 10/10/1995 |
| 5421659 | Keyboard housing with channels for draining spilled liquid A keyboard includes a body having a number of depressions formed in the upper portion for collecting water, a-number of channels extend upward from the depression for slidably receiving buttons. A base is secured to bottom of the body and a casing is secu... | 06/06/1995 |
| 5369233 | Safety pressure sensor, in particular for microswitches A safety pressure sensor in particular for microswitches comprises a base body (2) to be engaged to a receptable containing a fluid under pressure, a flexible diaphragm (6) disposed in contact with the fluid under pressure and acting on a microswitch (9) ... | 11/29/1994 |
| 5352858 | Hermetically sealed snap switch assembly with pre-use backfilling option A hermetically sealed snap switch assembly involving a housing that includes a hermetically sealed snap switch chamber in which a projecting terminal type subminiature snap action switch is mounted in slip fit association with a similar number of dependin... | 10/04/1994 |
