Plural Independently Operable Switches Patents (Class 335/159)
  • Patent number: 8830018
    Abstract: A solenoid-driven automatic bus transfer switch may automatically transfer one or more electrical loads from a first power source to a second power source, or vice versa, in the event of a power failure or other casualty that affects either power source. The transfer switch may be operated in response to the energization of a solenoid coil, which causes a main shaft having a transfer element to rotate from being in contact with the first power source to being in contact with the second power source. The transfer element may be spring-mounted to the shaft, which ensures that a sufficient electrical contact exists between the surfaces of the transfer element and the respective leads of the first and second power sources, regardless of any wear or degradation that may be experienced at any of the surfaces.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 9, 2014
    Assignee: Ward Leonard Investment Holdings, LLC
    Inventors: Howard H. Plude, Jr., Myron Moroz
  • Patent number: 8436702
    Abstract: There is provided an electromagnetic contactor unit capable of firmly connecting electromagnetic contactors without influencing outer dimensions when the electromagnetic contactors are connected to each other. The electromagnetic contactor unit connected at least two juxtaposed electromagnetic contactors (2a, 2b) with a connection piece (42). The electromagnetic contactor includes an attachment hole (41a) formed in each corner of an attachment plate portion, a piece accommodation concave portion (43) fitting a half portion of the connection piece formed above the attachment hole and accommodating within an outer dimension, and is opened to a connection surface with the adjacent electromagnetic contactor, and a locking portion (44) locking the connection piece formed in the piece accommodation concave portion.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: May 7, 2013
    Assignee: Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Yasuhiro Naka, Koji Okubo, Kouetsu Takaya, Kenji Suzuki
  • Patent number: 8203404
    Abstract: A vehicle power system includes an electrical power source, an electrical bus, and a contactor electrically connected with the electrical power source and electrical bus. The contactor includes first and second poles, dual plungers each operatively associated with one of the first and second poles, and an electromagnetic coil configured to cause at least one of the dual plungers to move if the coil is energized.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: June 19, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Philip Michael Gonzales, Benjamin A. Tabatowski-Bush
  • Patent number: 8050008
    Abstract: A relay device includes mechanical relays, a first bus bar, a second bus bar, and a relay drive circuit. The relay includes a coil, a moving contact whose position changes according to whether the coil is energized, a load terminal conductive to the contact and connected to the first bar, and a coil terminal connected to the coil and second bar. The first bar includes a loading circuit. A current flows to an external load through the loading circuit opened/closed when the position of the contact changes. The second bar includes a coil circuit through which the coil is energized. The drive circuit is packaged on the second bar and opens/closes the coil circuit based on an operation signal. The first and second bars are stacked at predetermined intervals. The relays are between the first and second bars.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: November 1, 2011
    Assignee: Anden Co., Ltd.
    Inventor: Hirohisa Suzuki
  • Publication number: 20100046133
    Abstract: A relay device includes mechanical relays, a first bus bar, a second bus bar, and a relay drive circuit. The relay includes a coil, a moving contact whose position changes according to whether the coil is energized, a load terminal conductive to the contact and connected to the first bar, and a coil terminal connected to the coil and second bar. The first bar includes a loading circuit. A current flows to an external load through the loading circuit opened/closed when the position of the contact changes. The second bar includes a coil circuit through which the coil is energized. The drive circuit is packaged on the second bar and opens/closes the coil circuit based on an operation signal. The first and second bars are stacked at predetermined intervals. The relays are between the first and second bars.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 25, 2010
    Applicant: ANDEN CO., LTD.
    Inventor: Hirohisa SUZUKI
  • Publication number: 20100033275
    Abstract: A multi-coil automatic transfer switch (ATS) adapted for automatically switching an appropriately rated component to render the ATS operational over a worldwide voltage range is provided. A low voltage contactor includes a low voltage coil magnetically linked with a normally open low voltage main contact. A high voltage contactor is coupled in parallel with the low voltage contactor. The high voltage contactor includes a high voltage coil magnetically linked with a normally open high voltage main contact. A normally closed high voltage auxiliary contact is magnetically linked with the high voltage coil. The normally closed high voltage auxiliary contact has a phase opposite the normally open high voltage main contact. The high voltage contactor opens the normally closed high voltage auxiliary contact to disconnect the low voltage coil.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 11, 2010
    Inventors: Steven Mark GROFF, Trung LE
  • Patent number: 7541900
    Abstract: The invention relates to a module for electrical locking between a first and a second contactor, comprising a first and a second normally closed auxiliary contact for respectively cooperating with a slide of the first and the second contactor, a first and a second connecting member of the module for cooperating respectively with a connecting member of the first and the second contactor, a first connection terminal being connected in series with the first normally closed auxiliary contact and with the second connecting member of the module, a second connection terminal being connected in series with the second normally closed auxiliary contact and with the first connecting member of the module, and the first and second connecting members of the module being positioned on a face of the body, at a first and a second part of the module respectively, respectively intended to be arranged on the front face of the first and the second contactor.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: June 2, 2009
    Assignee: ABB France
    Inventor: Alain Portier
  • Patent number: 7449983
    Abstract: An inter-phase link for a shared tripping device, wherein the shared tripping device is structured to operatively couple at least two circuit breakers, and the inter-phase link has an elongated body with a mounting end and a distal end. The inter-phase link body mounting end is structured to be coupled to the primary circuit breaker operating mechanism and the inter-phase link body distal end is structured to extend through a primary circuit breaker housing assembly shaped opening and a secondary circuit breaker housing assembly shaped opening to engage the secondary circuit breaker trip device.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: November 11, 2008
    Assignee: Eaton Corporation
    Inventor: Mark O. Zindler
  • Patent number: 7446635
    Abstract: A combination of at least two electromagnetic switching devices, each of which is provided with a plug-in connector socket and can be fixed side by side on a support in a stationary position in relation to one another and can be connected to form electrical contact by means of a connection unit. The connection unit includes an electrical conductor connection and a plug-in connector system. The conductor connection is encased by a housing of the connection unit and the plug-in connector system is encased by the lateral faces of the connection unit that face the switching devices. The plug-in connector system is configured to be displaced on the lateral face of the connection unit towards the lateral face of the neighbouring device in the connection unit housing.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: November 4, 2008
    Assignee: Moeller GmbH
    Inventors: Stephan Stanke, Frank Friederiszick
  • Patent number: 7315229
    Abstract: 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.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 1, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tomoaki Sasaki, Naoki Kanemoto, Takafumi Imai
  • Patent number: 7268651
    Abstract: The invention relates to a electromechanical switching device having two movable contact elements interacting with a fixed contact. Said switching device has a housing. When viewing a fixing side from the top, said housing is divided into two areas bordering with a longitudinal side of the housing, one of the movable contact elements and the corresponding fixed contact being located in said areas, wherein each of the housing areas has a narrow partial area and a broad partial area bordering therewith. The broad partial area of the first housing area is adjacent to the narrow partial area of the second housing area and the narrow partial area of the first housing area is adjacent to the broad partial area of the second housing area. The actuation directions of the movable contact elements are directed opposite each other.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: September 11, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gunther Eckert, Wolfgang Leitl
  • Patent number: 7135946
    Abstract: A double relay is described which has two relay actuators which are inserted into a common receptacle. Each relay actuator has a first fixed contact and a movable contact. Arranged on the receptacle are two second fixed contacts, in each case a second fixed contact being associated with a movable contact of a relay actuator. The receptacle has a plurality of connection pins by way of which an electrical contact may be made with the relay actuators and the second fixed contacts. The double relay can be manufactured at low cost.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: November 14, 2006
    Assignee: Tyco Electronics AMP GmbH
    Inventor: Ralf Hoffmann
  • Patent number: 7061351
    Abstract: A complex relay device has at least one bus bar base plate, two relay units, and a relay case. The bus bar base plate has multiple bus bars that have ends providing terminals and are formed in predetermined circuit patterns. The bus bars are integrated and covered with a resin except for at least the ends. The two relay units are fixed on the bus bar base plate such that the two relay units are adjacent to each other and are connected to the terminals, which are used for external connection, through the bus bars. The relay case accommodates the bus bar base plate and the two relay units.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 13, 2006
    Assignee: Anden Co., Ltd.
    Inventors: Hirohisa Suzuki, Koichi Sato
  • Patent number: 6903638
    Abstract: A complex electromagnetic relay including a plurality of relay structures configured respectively as relays independent of each other, each relay structure including an electromagnet assembly and a contact section acting to open or close in accordance with an operation of the electromagnet assembly; and a housing accommodating the relay structures in a mutually inverted orientation with contact sections of the relay structures being located alternately at opposing sides. The electromagnet assemblies in the relay structures are provided individually with bobbins supporting coils. The housing includes an enclosing wall enclosing the relay structures in an envelope-like manner and a partition wall arranged between the relay structures disposed side-by-side to separate the relay structures from each other. The bobbins of the electromagnet assemblies are fixedly attached to the enclosing wall as well as to the partition wall.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: June 7, 2005
    Assignee: Fujitsu Component Limited
    Inventors: Akihiko Nakamura, Shigemitsu Aoki, Hirofumi Saso
  • Patent number: 6794967
    Abstract: Disclosed is an electromagnetic switch device for star-delta connections including a body, three power terminals respectively connected to three-phase power lines at one side of the body, three main starting terminals respectively connected to one-side terminals of a three-phase electric motor at the other side of the body, three star-delta terminals respectively connected to the other-side ends of the three-phase electric motor at the other side of the body, an electromagnet for a main circuit and an electromagnet for star-delta connections disposed at a lower portion of the body in such a fashion that they are laterally aligned with each other, each of the electromagnets including a fixed core and a coil wound around the fixed core, a main circuit switching unit serving to selectively connect each of the main starting terminals to an associated one of the power terminals in accordance with a magnetization of the main circuit-end electromagnet, and a star-delta connection switching unit serving to selectivel
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: September 21, 2004
    Assignee: Shin Dong-A Electric Corp.
    Inventor: Young Seo Park
  • Patent number: 6771154
    Abstract: An electromagnetic relay comprises a coil and a contact group containing a plurality of normally open contacts which are connected in series under control of an electromagnet created when this coil is energized. This electromagnetic relay can prevent a short-circuit from occurring between the normally closed contact and the normally open contact due to an arc even though the contact gap length is reduced.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: August 3, 2004
    Assignee: Taiko Device, Ltd.
    Inventors: Hideo Funayama, Hiromitsu Sato
  • Patent number: 6714107
    Abstract: A remote operated device including: a plurality of circuit breakers; a first actuator in operable communication with a second actuator, the first actuator positions the second actuator at a circuit breaker of the plurality of circuit breakers, the second actuator mounted external to the plurality of circuit breakers, the second actuator moves a handle of the circuit breaker to an on position, an off position, or performs a reset operation; and a controller in electronic communication with the first actuator and the second actuator.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: March 30, 2004
    Assignee: General Electric Company
    Inventors: Hemant Kumar Mody, Guillermo Wille
  • Publication number: 20030234709
    Abstract: A reed relay or reed sensor device that is substantially lead-less and has minimal inductance can be manufactured as an individual unit or as a plurality of units. The reed relay or reed sensor device comprises a substrate that has a plurality contacts on the exterior of the device connected to contacts on the interior of the device capable of maintaining a signal pathway to the internal components of the device. The internal components further comprise a reed switch, an electrical shield, a coil bobbin, and a coil of electrical wire which when energized is capable of effectuating switching in the reed relay.
    Type: Application
    Filed: March 18, 2003
    Publication date: December 25, 2003
    Applicant: Meder Electronic
    Inventors: John Beigel, Gunther Samuel, John Boyington
  • Patent number: 6661321
    Abstract: An electromagnetic switch includes a socket, an electromagnetic module, and a contact module that is to be plugged into the socket and the electromagnetic module. The contact module includes a fixed contact member and a movable contact member that is rotatable relative to the fixed contact member between a first angular position for establishing a first circuit, and a second angular position for establishing a second circuit. The fixed contact member is formed with conductive blade portions that can be plugged into the socket.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: December 9, 2003
    Assignee: Tendex Electric Co., Ltd.
    Inventor: Hung-Chieh Chuang
  • Patent number: 6621394
    Abstract: An electromagnetic relay apparatus, which is improved in miniaturization, performance, assembly accuracy, cost reduction, productivity, and reliability. A plurality of electromagnetic relays, each having an NO contact that is closed by applying exciting current to a coil and an NC contact that is closed when the excitation current is not passed through the coil, are arranged in line, one diagonally opposite to the next, on a base so that the respective NO/NC contacts of adjacent electromagnetic relays are located in diagonally opposed positions in substantially point symmetrical relation. The electromagnetic relay includes an electromagnetic block having a couple of moving contacts, a first stationary contact and a second stationary contact both being connectable to external wiring, which are composed of uniform parts or components.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: September 16, 2003
    Assignee: NEC Tokin Iwate Ltd.
    Inventors: Tsutomu Ono, Keiichi Mori, Katsuto Kojima, Tatsumi Ide
  • Patent number: 6614334
    Abstract: A circuit breaker includes a housing, line and load terminals, first and second circuit breaker mechanisms, an operating handle having on and off positions, and first and second links from the operating handle to the respective first and second operating mechanisms. Each of the circuit breaker mechanisms includes a set of separable contacts in series with the other separable contacts between the line and load terminals, an operating mechanism for moving the corresponding separable contacts between open and closed positions, and a trip mechanism cooperating with the corresponding operating mechanism for moving the corresponding separable contacts from the closed to the open position thereof. The first and second links engage the first and second operating mechanisms to move the first and second separable contacts, respectively, between the corresponding closed and open positions thereof responsive to the on and off positions, respectively, of the operating handle.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: September 2, 2003
    Assignee: Eaton Corporation
    Inventors: Jeffrey S. Gibson, Craig A. Rodgers, Lance Gula
  • Patent number: 6590481
    Abstract: An electrically powered, fast acting transfer switch utilizes a single action solenoid that, alternately, through a mechanical assembly, moves the handle of one electric power switch between OFF and ON positions. A coupling including a rigid strap operates the handle of a second electric power switch oppositely between ON and OFF positions. The mechanical assembly includes an electromagnet drive plate to which the electromagnet of the solenoid is secured and an armature drive plate carrying the solenoid armature. A latch mechanism alternately holds one drive plate and then the other stationary so that the electromagnet and armature alternately move to effect reciprocal movement of the handle of the one electric power switch, and through the rigid strap, the handle of the second electric power switch.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: July 8, 2003
    Assignee: Eaton Corporation
    Inventors: David Curtis Turner, Jeffrey Lowell Woods, David Michael Olszewski, William Ellsworth Beatty, Jr., Ronald Dale Hartzel
  • Patent number: 6577216
    Abstract: An electrically powered, fast acting transfer switch utilizes two electric power switches mounted in spaced relation with the handles confronting and moveable in a common plane, but in opposite directions, so that when simultaneously operated by an electrically powered operator positioned between the two switches, one switch is ON and the other is OFF. A mechanical assembly converts the motion of a single acting solenoid into reciprocal operation of the switch handles.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: June 10, 2003
    Assignee: Eaton Corporation
    Inventors: David Curtis Turner, Jeffrey Lowell Woods, David Michael Olszewski, William Ellsworth Beatty, Jr.
  • Patent number: 6559744
    Abstract: The invention relates to a twin relay with at least two drive mechanisms which are separate from each other. The drive mechanisms each act on designated contact springs and both act on a single contact assembly.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: May 6, 2003
    Assignee: Hengstler GmbH
    Inventor: Eberhard Kirsch
  • Patent number: 6512433
    Abstract: The invention concerns a protection relay, in particular of the thermal type, recessed relative to its front face (24), a recess acting as through passage for interconnection of the conductors (C) between the terminals of the relay control (23) and of the contact switch (16). The recess (27) is concealed in normal operation by a shutter consisting of a flap (26) or a fixed part (26′) of the housing (20). The interconnection conductors can consist of individual cables (C) or can be integrated to a precabling addition (40) housed in the recess.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: January 28, 2003
    Assignee: Schneider Electric Industries SA
    Inventors: Denis Bouchard, Daniel Sinthomez
  • Patent number: 6472621
    Abstract: A switch assembly, particularly for a start-motor including a protection device and a contactor device, and an intermediate component for mechanical association and electrical interconnection between these two devices. The association component 30 has, to adapt a protection device 10 of fixed size to contactor devices 20 of different sizes, an adjustable part 36. The adjustable part 36 is located at the rear of the component 30, which it may be snapped onto in different positions staggered in depth, and offers a lock-on lug 35 located in the direction of the contactor device 20 and fitted with several support forms 39, 40 staggered in height.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: October 29, 2002
    Assignee: Schneider Electric Industries SAS
    Inventors: Pierre Merlin, Serge Paggi, Thierry Fort
  • Patent number: 6225880
    Abstract: The inventive relay has a base body in the form of a coil body (1), the base body supporting a core (16), a yoke (20), an armature (22) and a contact spring (23) which is connected to the armature. Fixed contact supports (34) and a contact spring connection pin (5) which consist of semi-finished wire with a preferably rectangular or square cross-section are embedded in a flange (12) of the coil body (1). The inventive electromagnetic relay is therefore very simple to produce. There is no wasted material, no punching tools are needed for the contact connection parts and since no particles of plastic are abraded by insertion, there is no risk of this impairing the quality of the relay.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: May 1, 2001
    Assignee: Tyco Electronics Corp
    Inventor: Josef Kern
  • Patent number: 6140896
    Abstract: An electro-mechanical reversing contactor is disclosed in which a single common base is molded to receive two contactor powerheads. The common base has a bottom surface and upwardly extending sides, with an upwardly extending center divider, thereby forming two powerhead sockets. Each powerhead socket is capable of receiving a powerhead therein. The common base also has a circuit board pocket to receive a single circuit board to control both contactor powerheads. The center divider has an upwardly extending interlock tower to receive an interlock pawl that is engageable with each of the contactor powerheads. The interlock mechanism mechanically prevents both contactors from being energized at the same time. The common base for two powerheads saves labor and material costs in assembling and installing a reversing contactor.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: October 31, 2000
    Assignee: Eaton Corporation
    Inventor: Daniel P. Heckenkamp
  • Patent number: 6002579
    Abstract: A switchgear unit comprising two switching devices (1, 2) which are provided with a reversing combination, which switchgear unit is of simple design and allows easy assembly and disassembly by the customer. The reversing combination comprises an assembly which is composed of a support (3) and an anchor (4) and is inserted into slots (7, 8) in connecting side walls (5, 6) of the switching devices (1, 2). The anchor (4) prevents the contact carriers (10) of the switching devices (1, 2) from being released at the same time and, when one of the switching devices (1 or 2) is switched on, prevents the contact carrier (10) of the other switching device (2 or 1) from being released.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: December 14, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Johann Drexler, Manfred Schmidt
  • Patent number: 5612658
    Abstract: In the relay, a holding pin for a contact spring is arranged in each case in the region between the armature and the coil in such a way that the load current that flows via the contact spring can flow through the ferromagnetic circuit of the coil, comprising the core, the yoke (12) and the armature (13). In order to avoid negative effects of such a current loop, a connecting pin (110) is anchored in a base body outside the ferromagnetic circuit, on that side of the armature opposite to the contact spring (7), which connecting pin conducts the load current of the contact spring via a hoop portion (111) that engages over the armature. Optionally, the holding pin (9) of the contact spring may also be additionally contacted with a part of the load current, in order to make use of certain effects of the current loop.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: March 18, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Horst Hendel, Bernhard Kleine-Onnebrink
  • Patent number: 5382934
    Abstract: A relay having two coils which are arranged axially flush on a base body (1), wherein each coil has a winding (23, 33) and a core (14, 15) connected by means of a U-shaped yoke (12). A single armature (13) is supported on a center section of the yoke (12) such that it can be changed over between the inner ends of the two cores (14, 15). In addition, two contact springs (7, 8) are arranged between the two cores, on both sides of the same, parallel to the armature. The contact-making ends of the two contact springs rest on a common center contact element (61) in the quiescent state. Depending on which winding (23 or 33) is energized, a corresponding contact spring (7 or 8 respectively) is lifted off the center, contact element (61) and moved into contact with an outer contact element (51 or 52 respectively). The relay is advantageously suited as a pole-reversal relay for driving DC motors having a changing rotation direction (e.g., as found in motor vehicles).
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: January 17, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Horst Hendel, Josef Kern, Bernhard Kleine-Onnebrink
  • Patent number: 4959627
    Abstract: An electromagnetic relay includes a flat base made of an insulating material, two flexure type electromagnetic relay blocks fixed on the base so as to be point symmetrical with the center of the base and having the same structure, a first contact member including two make contacts respectively opposing the movable contacts of the two electromagnetic relay blocks and at least one first terminal inserted into a first through hole formed in a central portion of the base, and a second contact member including two break contacts respectively opposing the movable contacts of the two electromagnetic relay blocks and at least one second terminal inserted into a second through hole formed in a central portion of the base.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: September 25, 1990
    Assignee: NEC Corporation
    Inventors: Makoto Iizumi, Tatsumi Ide, Noboru Kanzawa, Akira Sekiguchi, Masayuki Morimoto, Hitoshi Goto, Tsutomu Ono
  • Patent number: 4947285
    Abstract: For the purpose of achieving an efficient and long-lived switching contact making on the basis of a structural design saving space and material, a reversing circuit for direction reversal in the case of direct current drives comprises four single-pole contactors which are arranged in a square and which are provided with coils 1 and with contact bridges 2 as well as four contact pieces 3 for connecting the outer terminals with fixed contacts formed by said contact pieces 3, the contact pieces 3 being arranged on one side of the coils in a square within one plane.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: August 7, 1990
    Assignee: Schaltbau Gesellschaft mbH
    Inventor: Anton Happach
  • Patent number: 4712079
    Abstract: An auxiliary contact device is taught for utilization with a motor controller or a contactor. A linear cam arrangement is utilized with a rooted flexure arm to cause the contact end of the flexure arm to move in relationship with the linear travel of the stroker carrying the cam surface into a disposition of electrical continuity with a fixed contact. Subsequent linear movement of the stroker in the same direction continues to move the cam surface thereof over an offset in the flexure member after contact has been made. This causes a wiping action between the abutting contact surfaces. The arrangement may be utilized in either the normally open or normally closed disposition. It may be used on multipole devices and the stroker member may be modified for matching a common auxiliary contact assembly arrangement with various kinds of main contactors or controllers or to change timing of contact status change.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: December 8, 1987
    Assignee: Westinghouse Electric Corp.
    Inventor: Terry L. Marquardt
  • Patent number: 4688011
    Abstract: A motor safety switch which eliminates much of the costs of conventional wiring, material and labor, the motor safety switch being formed of a plurality of assembled independent components; a first of the components including a switch unit having a contact system, a thermal tripper and a magnetic tripper; a second of the components being an electromagnetic drive unit; a third of the components being a modular contact unit; and the independent components are maintained by mechanical connectors in selected assembled relationship to include either all of the aforementioned independent components or selective subassemblies thereof.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: August 18, 1987
    Assignee: Square D Starkstrom GmbH
    Inventors: Helmut Lemmer, Josef Risthaus
  • Patent number: 4590451
    Abstract: A star-delta contactor in which a traveling contact is provided with a pair of contact bases which are formed as a slide metal. The contact bases perform a seesaw movement in a direction where their mutual end portions are engaged and are bent at the connection portion in a direction where their mutual end portions are separated, and each of traveling iron cores of two electromagnets m1, m2 has an operation frame for respectively operating a pair of the traveling contact bases, and a spring is provided for respectively separating the traveling iron core when the electromagnet is deenergized.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: May 20, 1986
    Assignee: SUN-S Company Ltd.
    Inventor: Motomu Miyamoto
  • Patent number: 4547756
    Abstract: A multiple reed switch module includes multiple reed switches aligned in fixed, spacial relation by thermoplastic side rails attached to the switch leads, with lead ends extending perpendicularly from the leads in parallel relation. The side rails function as a spacing mechanism and facilitate handling of the switches, and the efficient insertion of the multiple parallel lead ends in circuit board assemblies.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: October 15, 1985
    Assignee: Hamlin, Inc.
    Inventors: Norbert D. Miller, Craig V. LaFleur
  • Patent number: 4529953
    Abstract: An electrical switch assembly which employs opposed solenoid actuators in association with a pair of biased contact plates.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: July 16, 1985
    Assignee: Electromation, Inc.
    Inventor: Michael J. Myers
  • Patent number: 4376271
    Abstract: Means for causing the properly-polarized one of a pair of series-connected DC contactors to open before the other, depending upon the direction of load current flow. Load current is caused to link the magnetic circuit constituted by a contactor coil, frame and armature; with current flowing in a first direction, the linking has an additive effect, strengthening the MMF in the magnetic circuit. When current flows in the opposite direction, the MMF is weakened which allows the contactor to open more quickly.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: March 8, 1983
    Assignee: Siemens-Allis, Inc.
    Inventors: Paul M. Gallatin, Roger L. Robertson
  • Patent number: 4202602
    Abstract: A radiant energy source modulator comprising a plurality of electro-mechanical drivers which operate individually to close an aperture through which radiant energy from an infrared laser light, etc., source must pass. Excitation of each of said drivers with separate desired input signals operates to obstruct or permit the radiant energy to pass through the aperture, the overall radiant energy which passes being modulated by the plurality of drivers.
    Type: Grant
    Filed: December 3, 1973
    Date of Patent: May 13, 1980
    Inventor: Ismael Torres
  • Patent number: 4132967
    Abstract: A unitized combination motor starter includes a unitized insulating base for an electromagnetic contactor section and a circuit breaker section having automatic trip means. The unitized base is part of a common insulating housing for the contactor and circuit breaker sections and circuit elements serially connecting these sections are disposed within the common housing.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: January 2, 1979
    Assignee: I-T-E Imperial Corporation
    Inventor: Carl E. Gryctko