High-voltage switches with arc preventing or extinguishing devices patents - Monitor Patents
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High-voltage switches with arc preventing or extinguishing devices

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
12/04/2014 > 2 patent applications in 2 patent subcategories.

20140353279 - Gas-insulated circuit breaker with nominal contact shielding arrangement: A gas-insulated type circuit breaker including a housing defining a gas volume for a dielectric insulation gas; a first arcing contact member and a second arcing contact member, wherein the first arcing contact member and the second arcing contact member are movable relative to each other along an axis; a... Agent:

20140353280 - Switch apparatus for connection with a dc circuit: A switch apparatus usable in a DC circuit employs a rotatable shaft having conductors that are removably connected with two or more pairs of contacts that are situated on line conductors and load conductors and that are connected in parallel by the conductors on the shaft. In rotating the shaft... Agent: Eaton Corporation

11/27/2014 > 5 patent applications in 5 patent subcategories.

20140346143 - Gas insulated switchgear and manufacturing method of the same: A gas insulated switchgear includes a high-voltage conductor installed inside a ground tank filled with an insulation gas and the high-voltage conductor is supported on an insulation spacer and thereby fixed to the ground tank. The gas insulator switchgear is configured in such a manner that an insulation portion of... Agent: Mitsubishi Electric Corporation

20140346144 - Electrical switching device, notably for direct current, equipped with a magnetic module for blowing the electric arc: An electrical switching device (1) which comprises at least one double breaking pole provided with two fixed contacts (3, 4) that cooperate with two moving contacts (5, 6) arranged so as to move in a breaking plane (P) and define, with every fixed contact, a breaking zone. The device comprises... Agent: Socomec S.a.

20140346145 - Mixture of hydrofluoroolefine and hydrofluorocarbide to improve the internal arc resistance in medium and high voltage electric apparatus: The invention relates to the use of a mixture of a hydrofluoroolefin and a hydrofluorocarbon, optionally combined with another fluorinated gas, as an electrical insulation medium and/or an electric arc extinguishing medium in a medium-voltage electrical apparatus. The invention also relates to a medium- or high-voltage electrical apparatus in which... Agent: Schneider Electric Industries Sas

20140346146 - Profiled arc splitter plate: A profiled arc splitter plate for a switch having a fixed contact and a movable contact is provided to increase electromagnetic attractive forces on the arc generated during contact separation. The plate (300) comprises a body (306) defining an operatively inverted substantially V-shaped recess having a center notch (302) provided... Agent: Asco Power Technologies, L.p.

20140346147 - Mobile conducting unit for a breaker, including a spring for accelerating the separation of arc contacts: A disconnector (1) including a movable conductive unit (6) comprising a main electrically conductive body (9) has a main contact (4b) as well as an arcing contact (5b). According to the invention, the unit (6) further comprises a secondary body (14) mounted to move in sliding relatively to the main... Agent:

11/20/2014 > 4 patent applications in 4 patent subcategories.

20140339195 - Vacuum interrupter with transition areas between metal housing parts and ceramic housing parts covered by insulating material: A vacuum interrupter is disclosed with transition areas between metal housing parts and ceramic housing parts covered by insulating material. To enhance dielectric performance and field grading behaviour, the insulating material can extend as a tube or a multilayer tube design over at least nearly a complete length of the... Agent: Abb Technology Ag

20140339196 - Arc extinguishing unit for molded case circuit breaker: There is provided an arc extinguishing unit of a molded case circuit breaker (MCCB) having a structure in which grids and side plates forming an arc chamber are coupled in an inserted manner, facilitating an operation, and intervals of grids are uniformly maintained and a configuration of the grids is... Agent: Lsis Co., Ltd.

20140339197 - Arc extinguishing chamber for an electric protection apparatus and electric protection apparatus comprising same: The present invention relates to an arc extinguishing chamber of an electric protection apparatus comprising an arc formation chamber containing a stationary contact and a movable contact which, when they separate, form an arc between them, said arc formation chamber communicating with the inlet of a second chamber, called arc... Agent: Schneider Electric Industries Sas

20140339198 - Molded-case circuit breaker: Provided is a molded case circuit breaker including an upper external box defining a rear space, a lower external box coupled with the upper external box and defining a front space divided from the rear space together with the upper external box, a fixed contact unit provided on one side... Agent: Lsis Co., Ltd.

11/13/2014 > 3 patent applications in 3 patent subcategories.

20140332500 - Dc current switching apparatus, electronic device, and method for switching an associated dc circuit: Exemplary embodiments are directed to a direct current switching apparatus including at least a first mechanical switching device which is suitable to be positioned along an operating path of an associated DC circuit and includes a fixed contact and a corresponding movable contact which can be actuated between a closed... Agent: Abb S.p.a.

20140332501 - Shielding element for the use in medium voltage switchgears: A shielding element is disclosed for use in medium voltage switchgears with vacuum interrupters with at least two contacts, which are movable along a switching path between closed and open contact positions, wherein the shielding element is positioned around the contact position region in the vacuum interrupter, wherein at least... Agent: Abb Technology Ag

20140332502 - Circuit breaker comprising ventilation channels for efficient heat dissipation: A circuit breaker includes a housing equipped with a first switchgear region, in which a quenching chamber device and a sliding contact device having movable contacts are located, the contacts lying opposite fixed contacts, and equipped with a second switchgear region, in which a current release assembly consisting of a... Agent: Siemens Aktiengesellschaft

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