141 |
Electric switch |
US38165453 |
1953-09-22 |
US2769064A |
1956-10-30 |
ROWE RAYMOND N |
|
142 |
Arc protective device |
US28944952 |
1952-05-23 |
US2737558A |
1956-03-06 |
WEIDE RUDOLPH C |
|
143 |
Electric switch |
US3245548 |
1948-06-11 |
US2597257A |
1952-05-20 |
NYE HENRY V |
|
144 |
Nonsparking switch |
US64859946 |
1946-02-19 |
US2499420A |
1950-03-07 |
SAKATOS MICHAEL J |
|
145 |
Auxiliary switch |
US25936539 |
1939-03-02 |
US2204393A |
1940-06-11 |
ATWOOD WINFIELD A |
|
146 |
Magnetic switch |
US62204823 |
1923-03-01 |
US1684060A |
1928-09-11 |
JAMES HENRY D |
|
147 |
Structure of switchgear with arc eliminator |
US15151420 |
2016-05-10 |
US10020643B2 |
2018-07-10 |
Menglei Zheng |
The present invention relates to a structure of a switchgear with an arc protection system including an arc optical sensor to detect an arc, a relay to determine an occurrence or non-occurrence of a fault current by receiving an arc signal detected by the arc optical sensor, and an arc eliminator to earth an arc-generated side bus bar in response to an operating signal with respect to the determined fault current, wherein the arc eliminator has a test position or a service position within the switchgear. |
148 |
Switch assembly |
US14758476 |
2012-12-28 |
US09679727B2 |
2017-06-13 |
Marko Takala; Jari Elomaa; Matti Kähkipuro; Veikko Puumala; Lauri Kettunen; Tommi Forsberg; Pertti Arjanne; Mikko Helminen; Mikko Vehkaperä |
A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a). |
149 |
CIRCUIT BREAKERS WITH MOVING CONTACT ARM WITH SPACED APART CONTACTS |
US14698192 |
2015-04-28 |
US20160163488A1 |
2016-06-09 |
James Gerard Maloney; Luis Enrique Betances Sansur |
Circuit breakers with moving contacts having a rocking movement, e.g., heel-toe action, are configured to direct arcing across one of two (first and second) spaced apart contacts on a moving arm to an adjacent arc chute to thereby alleviate deterioration due to arcing and improve conductivity of the first moving contact over time. |
150 |
Apparatus for interrupting current |
US13006895 |
2011-01-14 |
US09251980B2 |
2016-02-02 |
Thangavelu Asokan; Thomas Frederick Papallo, Jr.; Govardhan Ganireddy |
In one aspect, an apparatus, such as an electrical system, is provided. The electrical system can include a pair of conductors across which an arc is sporadically supported, the arc including load current from a load circuit. The electrical system can also include an energy source that is separate from the load circuit and configured to selectively charge an electrode assembly. The conductors and electrode assembly can be configured such that the arc, when present, will be lengthened or constricted due to the charge on the electrode assembly. |
151 |
SWITCH ASSEMBLY |
US14758476 |
2012-12-28 |
US20150340185A1 |
2015-11-26 |
Marko Takala; Jari Elomaa; Matti Kähkipuro; Veikko Puumala; Lauri Kettunen; Tommi Forsberg; Pertti Arijanne; Mikko Helminen; Mikko Vehkaperä |
A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a). |
152 |
IMPROVED CIRCUIT BREAKER APPARATUS |
US14650049 |
2013-12-11 |
US20150318124A1 |
2015-11-05 |
Didier RODRIGUES; Denis FRIGIERE; Jean-Marc WILLIEME; Frank JACQUIER |
A switchgear comprising a set of arcing contacts, a set of disconnection contacts, and a set of permanent contacts, a first branch including the set of arcing contacts and the set of disconnection contacts connected in series, a second branch including the set of permanent contacts, the second branch being connected in parallel with the first branch, including a first controller and a second controller, the first controller making it possible to cause the set of arcing contacts and of the set of permanent contacts, the second controller making it possible to cause the set of disconnection contacts change over between its two positions, said disconnection contacts being able to change over towards its open position only when the set of arcing contacts and the set of permanent contacts are in their open positions, the two controllers being separate, the second being a button connected to an electric motor. |
153 |
Sequential switching device with surrounding distinctive joint points structure |
US13853384 |
2013-03-29 |
US08803011B2 |
2014-08-12 |
Tai-Her Yang |
The present invention is an innovation about a sequential switching device with surrounding heterogeneous joint points structure, in which the exterior of a middle conductive joint point is surrounded by a heterogeneous external joint point structure, so that a time delay is generated between the two joint points during the sequential OF/OFF operations, so the service life of joint points of a mechanical joint point switch can be prolonged, and the voltage drop and thermal loss of joint point are reduced, especially characterized in that the engagement and stability of joint points are enhanced. |
154 |
SEQUENTIAL SWITCHING DEVICE WITH SURROUNDING DISTINCTIVE JOINT POINTS STRUCTURE |
US12985411 |
2011-01-06 |
US20120175229A1 |
2012-07-12 |
Tai-Her YANG |
The present invention is an innovation about a sequential switching device with surrounding heterogeneous joint points structure, in which the exterior of a middle conductive joint point is surrounded by a heterogeneous external joint point structure, so that a time delay is generated between the two joint points during the sequential OF/OFF operations, so the service life of joint points of a mechanical joint point switch can be prolonged, and the voltage drop and thermal loss of joint point are reduced, especially characterized in that the engagement and stability of joint points are enhanced. |
155 |
STATIONARY CONTACT ASSEMBLY INCLUDING FIRST AND SECOND STATIONARY CONTACTS, AND CIRCUIT INTERRUPTER AND TRANSFER SWITCH EMPLOYING THE SAME |
US12704651 |
2010-02-12 |
US20110198203A1 |
2011-08-18 |
ROBERT W. MUELLER; James W. Krieger; Paul A. Merck; Amelia M. Stay; Cathleen M. Clausen; Joshua D. Myers |
A circuit interrupter includes a movable contact assembly having a movable contact, a stationary contact assembly, and an operating mechanism. The stationary contact assembly includes a conductor, a first stationary contact disposed on the conductor, and a second stationary contact disposed on the same such conductor proximate the first stationary contact. The first stationary contact has a first contact surface disposed a first distance from the conductor. The second stationary contact has a second contact surface disposed a second distance from the conductor. The second distance is smaller than the first distance. The operating mechanism is structured to move the movable contact assembly and cause the movable contact to engage or disengage from at least the first contact surface of the first stationary contact. |
156 |
Contactor assembly with arc steering system |
US12341391 |
2008-12-22 |
US07723634B2 |
2010-05-25 |
Jeffrey Ramsey Annis; Robert Alfred Duchrow; James Peter Miller |
A contactor assembly includes a stationary contact, an arc contact, an arc arrestor, and a magnetic intensifier. The magnetic intensifier is constructed to extend in generally close proximity to one of the stationary contact and the arc contact. During communication of power through the contactor assembly, the magnetic intensifier manipulates a magnetic field associated with current passing through the contactor assembly and increases the magnitude of a magnetic force directed to the arc arrestor. Preferably, the magnetic intensifier is formed integrally with a turnback associated with one of the stationary contact or the arc contact. Such a construction simplifies the manufacture and assembly of the contactor assembly and provides efficient and repeatable arc suppression. |
157 |
Method of manufacturing a switch assembly |
US11856326 |
2007-09-17 |
US07716816B2 |
2010-05-18 |
Jeffrey Ramsey Annis; Robert Alfred Duchrow; James Peter Miller |
A method of forming a switch assembly that includes a magnetic intensifier constructed to extend in generally close proximity to one of the stationary contact and the arc contact. During communication of power through the contactor assembly, the magnetic intensifier manipulates a magnetic field associated with current passing through the switch assembly and increases the magnitude of a magnetic force directed to the arc arrestor. Preferably, the magnetic intensifier is formed integrally with a turnback associated with one of the stationary contact or the arc contact. Such a construction simplifies the manufacture and assembly of the contactor assembly and provides efficient and repeatable arc suppression. |
158 |
Electromagnetic relay |
US11312561 |
2005-12-21 |
US07315229B2 |
2008-01-01 |
Tomoaki Sasaki; Naoki Kanemoto; Takafumi Imai |
Provided is an electromagnetic relay which does not require a braided wire for securing a current capacity of a main contact unit. The electromagnetic relay includes a main contact unit inserted into a power supply path to a load and an arc contact unit connected in parallel to the main contact unit. An auxiliary contact unit is electrically independent of the main contact unit and the arc contact unit. The main contact unit includes a main fixed contact fixed to a frame body and a main contact spring made of a leaf spring and fitted with a main mobile contact which is attached to and detached from the main fixed contact. The arc contact unit and the auxiliary contact unit are arranged adjacent to each other. The main contact spring extends in a direction in which the arc contact unit and the auxiliary contact unit are arranged. Therefore, the main contact spring can be formed with a large length in the frame body and the sectional area can be enhanced without increasing a spring constant, thereby not requiring a braided wire. |
159 |
Multiple switch MEMS structure and method of manufacture |
US11221745 |
2005-09-09 |
US20070057746A1 |
2007-03-15 |
Paul Rubel |
A multiple switch MEMS structure has a higher resistance, higher durability switch arranged in parallel with a lower resistance, less durable switch. By closing the higher resistance, high durability switch before the lower resistance, less durable switch, the lower resistance, less durable switch is protected from voltage transients and arcing which may otherwise damage the lower resistance, less durable switch. By appropriate selection of dimensions and materials, the high resistance, high durability switch may be assured to close first, as well as open first, thereby also protecting the lower resistance, less durable switch from voltage transients upon opening as well as upon closing. |
160 |
Power control apparatus |
US10164590 |
2002-06-10 |
US06756549B2 |
2004-06-29 |
Mika Suzuki; Takayoshi Endo; Hironori Kondo; Goro Nakamura; Norihiro Ohashi; Takahiro Satoh |
A rotating terminal (16) has a circumferential outer peripheral surface (21a, 24a) having its center disposed at an axis (13, 21b) of rotation of the rotating terminal, and has electrically conductive areas and non-electrically conductive areas alternately arranged on the outer peripheral surface in the circumferential direction. At least one pair of fixed terminals (17, 18) are fixed and disposed outwardly of a path of rotation of the outer peripheral surface of the rotating terminal. In accordance with a rotating position of the rotating terminal, the pair of fixed terminals can be switched between an electrically-conducting condition, in which the pair of fixed terminals are electrically connected together through the rotating terminal, and an interrupting condition in which the pair of fixed terminals are not electrically connected together through the rotating terminal. |