Armature Structure Patents (Class 335/124)
  • Patent number: 10580603
    Abstract: A second yoke is disposed at a distance from a first yoke in a predetermined first direction. The movable unit is disposed between the first yoke and the second yoke. The movable unit is rotated by magnetic force from the first yoke and the second yoke to switch between a contact state and a non-contact state of a first contact and a second contact. The first conductive member has an extending portion extending in a second direction vertical to the first direction. The extending portion and a second conductive member are disposed at positions not overlapping with the relay body as viewed in a third direction vertical to the first direction and the second direction.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 3, 2020
    Assignee: OMRON Corporation
    Inventors: Yuji Kozai, Natsumi Oyama, Koichiro Matsushima, Daisuke Ohtsubo
  • Patent number: 10486418
    Abstract: An actuator device, particularly for ink-jet heads, comprising: two or more electromagnetic actuators or solenoids (S), each comprising a ferromagnetic core (2), and a conductive winding or coil (4), arranged concentrically to the ferromagnetic core (2); a containment body (5), which encloses the electromagnetic actuators (S); an insulator element (1) for each solenoid (S). Each insulator element (1) is made of a magnetic material and is disposed at least partially in proximity of a respective solenoid (S).
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: November 26, 2019
    Assignee: SYSTEM S.P.A.
    Inventors: Franco Stefani, Mohamed Ouassif
  • Patent number: 10262810
    Abstract: An exemplary contactor assembly includes, among other things, a moveable contact that moves back and forth between an electrically coupled position with a plurality of stationary contacts, and an electrically decoupled position with the stationary contacts. A support structure is configured to limit flexing of the moveable contact when in the electrically coupled position. An exemplary support method includes, among other things, transitioning a moveable contact from an electrically decoupled position to an electrically coupled position with a plurality of stationary contacts. The method further includes limiting a flexing movement of the moveable contact with a support structure.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: April 16, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Wesley Burkman
  • Patent number: 9928950
    Abstract: A polarized electromagnetic actuator includes a movable armature, a stator, and at least one coil wrapped around the stator. At least one permanent magnet is disposed over the stator. When a current is applied to the at least one coil, the at least one coil is configured to reduce a magnetic flux of at least one permanent magnet in one direction and increase a magnetic flux of at least one permanent magnet in another direction. The movable armature moves in the direction of the increased magnetic flux.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 27, 2018
    Assignee: Apple Inc.
    Inventors: Nicholaus Ian Lubinski, James E. Wright, Jonah A. Harley, John M. Brock, Keith J. Hendren, Storrs T. Hoen
  • Patent number: 9916954
    Abstract: A switching contact is disclosed. The switching contact has an actuation section including a plurality of spring elements. The actuation section is less rigid in a first direction than an opposite second direction.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: March 13, 2018
    Assignees: TE Connectivity Germany GmbH, Tyco Electronics Austria GmbH
    Inventors: Johannes Helmreich, Rudolf Mikl, Titus Ziegler
  • Patent number: 9916952
    Abstract: A carrier sub-assembly for an electrical relay device includes a plunger and a shaft. The plunger is formed of a ferromagnetic material. The plunger has a generally cylindrical shape extending between a top side and a bottom side of the plunger. The shaft extends between a contact end and an opposite plunger end. The shaft is directly secured to the plunger without a discrete component between the shaft and the plunger securing the shaft to the plunger. The shaft and the plunger are configured to move together within the electrical relay device. A segment of the shaft including the contact end protrudes from the top side of the plunger for securing to a movable contact of the electrical relay device.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 13, 2018
    Assignees: TE CONNECTIVITY CORPORATION, TYCO ELECTRONICS MEXICO, S. de R.L. de C.V., AMP AMERMEX S.A. de C.V.
    Inventors: Terrance Edward Blackmon, Thomas Michael Banas, Darnell Lathal Drummond, Roger L. Thrush, Daniel Enrique Juarez Gerardo, Jose Antonio Felix Moreno
  • Patent number: 9852865
    Abstract: An electrical switch comprising a solenoid assembly including a core casing having a first bearing site and a bearing bush having a second bearing site, an armature movably borne in a switching direction at the first bearing site, and an armature shaft fixed to and movable with the armature and movably borne in the switching direction at the second bearing site.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: December 26, 2017
    Assignee: TE Connectivity Germany GmbH
    Inventors: Matthias Kroeker, Peter Sandeck, Udo Gabel, Thomas Haehnel
  • Patent number: 8729984
    Abstract: Systems and methods provide a magnetic actuator having more than one air gap. After the trip unit is triggered, a first armature is accelerated to quickly close a first air gap and then mate with a second armature. The first and second armature then move toward a core to close a second air gap and reach the final combined armature position, causing a contact to open. A faster reaction time is provided, yet without increasing the number of turns of the trip coil winding, and provides a more efficient actuator.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: May 20, 2014
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Willy Feller, Beat Villiger
  • Publication number: 20120206221
    Abstract: A relay with multiple contacts includes a coil assembly and a contact assembly. The contact assembly includes at least one base having at least two slots defined therein and at least two bridge members respectively received in the at least two slots. Each bridge member has at least two terminal portions respectively formed thereon. Each terminal portion has a movable contact mounted thereon. At least one connector has at least two fixed contacts mounted thereon. Each fixed contact selectively connects with the corresponding movable contact. A first conducting member and a second conducting member are located between the coil assembly and the contact assembly. The first conducting member has at least one first fixed contact for selectively connecting with the corresponding movable contact. The second conducting member has at least one second fixed contact for selectively connecting with the corresponding movable contact.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Inventor: Sung Jen Wu
  • Patent number: 8222981
    Abstract: An electrical switching device includes first and second circuit assemblies. Each of the first and second circuit assemblies includes a base terminal and a moveable terminal movable between an open state and a closed state. The movable terminal is electrically connected to the base terminal in the closed state. An actuator assembly is electromechanically controlled by a motor. The actuator assembly includes a pivot member rotated by the motor that has a post extending outward from a pivot body. An actuator is moved by the pivot member and is movable between a first position and a second position. The actuator is operatively coupled to the moveable terminals of the first and second circuit assemblies. The actuator moves the movable terminals to the closed state as the actuator is moved from the first position to the second position. The actuator has a pocket with a compression spring received in the pocket. The compression spring extends between a first end and a second end. The first end engages the actuator.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: July 17, 2012
    Assignee: Tyco Electronics Corporation
    Inventors: Kurt Thomas Zarbock, Matthew Len Moeller, Garland H. Ladd, Jr.
  • Patent number: 8179217
    Abstract: A polar electromagnet device has a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil, and a movable iron core attached to a lower end of the drive shaft on the axis center. The drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil. A permanent magnet is integrally arranged at the movable iron core on the same axis center.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 15, 2012
    Assignee: OMRON Corporation
    Inventors: Kensuke Kawaguchi, Kazuchika Hiroki
  • Patent number: 8174343
    Abstract: A relay comprises a movable body placed in a cavity which is formed on a substrate and surrounded by a spacer layer and sealed by a cover layer. The movable body comprises a first magnet which is permanently magnetized and has at least a first end. A nearby switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first magnet and exerts a magnetic torque on the first magnet to force the first magnet and said movable body to rotate and close an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet and said movable body to rotate in an opposite direction and opens the electrical conduction path at the first end.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 8, 2012
    Assignee: Magvention (Suzhou) Ltd.
    Inventor: Jun Shen
  • Patent number: 8143978
    Abstract: An electromechanical relay employing a movable first magnet and a nearby switching electromagnet is disclosed. The movable first magnet is permanently magnetized with a magnetic moment and has at least a first end. The switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first movable magnet and exerts a magnetic torque on the first magnet to force the first magnet to rotate and closes an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet to rotate in an opposite direction and opens the electrical conduction path at the first end. Multiple magnetic layers can be arranged to form closed magnetic circuits to facilitate switching and maintaining switched states.
    Type: Grant
    Filed: February 20, 2010
    Date of Patent: March 27, 2012
    Assignee: Magvention (Suzhou), Ltd.
    Inventor: Jun Shen
  • Patent number: 8138872
    Abstract: A contact device has a first yoke having a substantially U-shape, a second yoke bridged over both ends of the first yoke, a spool wound with a coil disposed between the first yoke and the second yoke, a movable iron core inserted into a center hole of the spool in a reciprocating mariner, and a contact mechanism unit formed above the second yoke driven with a drive shaft having a lower end fixed to the movable iron core, which reciprocates based on excitation and demagnetization of the coil, and an upper end projecting out from an upper surface of the second yoke. An insertion hole communicating to the center hole of the spool and through which the movable iron core reciprocates is formed in the first yoke. An annular auxiliary yoke including an insertion hole communicating to the insertion hole of the first yoke and through which the movable iron core reciprocates is provided at a lower surface of the first yoke.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 20, 2012
    Assignee: OMRON Corporation
    Inventors: Ikuhiro Yoshihara, Kazuchika Hiroki
  • Patent number: 8106732
    Abstract: A relay includes a base and a switch built into the base. A first terminal that is built into the base, is connected to one end of the switch, and is provided on a bottom of the base, a second terminal that is built into the base, is connected to the other end of the switch, and is provided on the bottom, and a third terminal that is connected to the first terminal in the base, is provided on a top of the base. No other terminal is provided on the top.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: January 31, 2012
    Assignee: Fujitsu Component Limited
    Inventor: Satoshi Takano
  • Patent number: 7825756
    Abstract: The electro-magnetic relay comprises a contact block which is structured to uniformly maintain the contact resistance between the terminals of two circuits. Fixed contacts are provided for each of the terminals of the two circuits and each of two sets of a pair of movable contacts in positions corresponding to these is supported by two both-end-supported movable springs. An insulation sheet and a press spring are overlapped over the two movable springs and disposed as a bridge. A pair of tongues are formed on the press spring by a Z-character shaped cut and by an armature pressing their tips, the insulation sheet and press spring transforms to an upward concave shape, the two movable springs bend and are taken in inside while inclining and the movable contacts touch the fixed contacts while sliding.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: November 2, 2010
    Assignee: Uchiya Thermostat Co., Ltd.
    Inventor: Hideaki Takeda
  • Patent number: 7800467
    Abstract: An electrical switch element for a relay includes a base, a compensating element, and an actuating device. The base is provided with fixed contacts. The compensating element includes first and second switch contact carriers provided with switch contacts that correspond to the fixed contacts. The first and second switch contact carriers are connected by a rigid body joint arranged there between such that the first and second switch contact carriers are pivotable about a pivot axis. The rigid body joint has a support surface. The actuating device is in contact with the support surface. The actuating device applies a switching force to the support surface to cause the first and second switch contact carriers to pivot about the pivot axis to move the switch contacts into or out of electrical contact with the fixed contacts.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: September 21, 2010
    Assignee: Tyco Electronics AMP GmbH
    Inventor: Ralf Hoffmann
  • Publication number: 20100060392
    Abstract: A relay comprises: a solenoid; a hermetically sealed chamber mounted at a lower end thereof with a cylinder into which a center portion of the spool is inserted, mounted at an upper end thereof with a pair of stationary terminals each provided at a stationary contact point and filled therein with insulating gas to be coupled at an upper portion of the spool; an insulation member insulating the chamber and the stationary terminals; a movable unit including a shaft, a conductive movable terminal, and a pair of movable contact points; a restoring spring to pull the shaft toward the lower surface of the cylinder; and an insulated sliding guide to guide the movable unit that is moved by the solenoid and the restoring spring.
    Type: Application
    Filed: July 14, 2009
    Publication date: March 11, 2010
    Inventors: Hyun Kil Cho, Yeong Bong Kim
  • Patent number: 7633363
    Abstract: A forcibly guided relay is disclosed, with a housing, whose height is smaller than its width and whose width is smaller than its length. With this, the relay comprises an electromagnetic drive filling the length or the width of the relay, with a clapper-type contactor which comprises a drive arm which extends in the direction of the core and at its free end cooperates with a drive cam; several contact pairs, which are in each case formed by a contact spring and a fixed or spring-like counter-contact said contact springs extending in the direction of the core, and with the drive ends being in a forcibly guided engagement with the drive cam.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: December 15, 2009
    Assignee: Elesta Relays GmbH
    Inventor: Werner Fausch
  • Patent number: 7372350
    Abstract: An electromagnetic relay is provided which is small in size and is capable of controlling two circuits of an ordinarily-open contact, which has a large current-carrying capacity and high interrupting capability, and which is excellent in resistance against shock and vibration. Movable contactors are held, through bow-shaped movable contactor springs, to two -shaped holding frames each being electrically separated and being mechanically connected via a card made of a highly heat-resistant resin in a card block. Thick-plate shaped movable contacts, which are attached to the movable contactors in a fixed manner, are electrically connected or disconnected to fixed contacts in a base block, in synchronization with operations of an armature of an electro-magnet block. In order to improve a current-carrying capability and interrupting capability, there are provided two pieces of ordinarily-open contacts which are connected in series to each other, and between which an interval is doubled, in each of two circuits.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: May 13, 2008
    Assignees: NEC Tokin Corporation, NEC Tokin Iwate, Ltd.
    Inventors: Yoshifumi Chida, Kei Chiba, Tatsumi Ide, Shigeru Kasai
  • Patent number: 7301334
    Abstract: A system that senses proximity includes a magnet producing a magnetic field and a sensor having a switch. The switch includes a cantilever supported by a supporting structure. The cantilever has a magnetic material and a longitudinal axis. The magnetic material makes the cantilever sensitive to the magnetic field, such that the cantilever is configured to move between first and second states. The switch also includes contacts supported by the support structure. The switch can be configured as a reed switch. When the magnet moves relative to the sensor, the cantilever interacts with a respective one of the contacts based on the position of the magnet during movement.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 27, 2007
    Assignee: Schneider Electric Industries SAS
    Inventors: Jun Shen, Meichun Ruan, Chengping Wei
  • Patent number: 6788176
    Abstract: In a relay (1) with two parallel contact springs (2a, 2b) which close or interrupt the electric circuit between a first and a second relay contact (3, 4), whose one end is connected in a conducting fashion to the first relay contact (3) and whose other free end (5a; 5b) closes or interrupts the electric circuit in a first end position and a second end position of the contact springs (2a, 2b), respectively, and with an armature (11) which can be adjusted by means of a magnetic field whose poles can be changed, for deflecting the contact spring (2a, 2b) into the respective end position, in accordance with the invention, a leaf spring (17) is centrally pivotably disposed on the armature (11) or its actuator (14) whose two free ends (18a, 18b) bias the two contact springs (2a, 2b) with force into the first end position.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: September 7, 2004
    Assignee: Gruner AG
    Inventor: Rainer Schmelz
  • Patent number: 6498552
    Abstract: Electromagnetic relay having a bobbin (1), a mobile contact sheet (2) which is displaceable between two fixed contact sheets (3), an armature (11), a magnetic core (43) and a signaling plate (4) indicating the operation mode of the relay. Means are provided to situate the various parts such as the base (23), the support (9), the carcass (5) wherein a receptacle (6) may receive an interchangeable circuit plate (7). The bobbin-carrier spool (44) has six terminals at its upper part, two of which are used for the connection of the terminals of the bobbin, a third terminal used for relays having a second winding, the two terminals (19) and a sixth terminal (44) which is an auxiliary control terminal. Means are provided to indicate the relay operation mode through a LED (54) and to identify the relay by means of a removable label (56) placed on he cover (8).
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: December 24, 2002
    Inventor: Santiago Lozano Rico
  • Patent number: 6356174
    Abstract: An operator assembly for an electromagnetic switching device includes a pair of insulative boards arranged in mutually facing relation. A first board carries first contacts, which may be arranged in pairs, while a second board carries second contacts designed to engage the first contacts upon closure. The first and second boards are pivotally secured to one another to rock between open and closed positions. A biasing member urges the board towards a normal position. The first board supports an electromagnet assembly and conductive traces for transmitting energizing current to the electromagnet coil. The second board supports an armature which is displaced under the influence of the electromagnet assembly during energization, thereby pivoting the boards with respect to one another against the force of the biasing member, and moving the first and second contacts into engagement.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: March 12, 2002
    Assignee: Rockwell Automation Technologies, Inc.
    Inventor: Raymond H. Hannula
  • Patent number: 6252479
    Abstract: The relay comprises a first housing part in which a coil having a U-shaped core is embedded, as well as a second housing part in which at least one spring support as well as at least one mating contact element are anchored. A contact spring with a flat armature is attached to the spring support. The relay is adjusted and additionally sealed by joining the two half-shells.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: June 26, 2001
    Assignee: Tyco Electronics Logistics AG
    Inventors: Josef Kern, Angelo Polese
  • Patent number: 6246305
    Abstract: A micromechanical switch and a method for operating the micromechanical switch between an open position and a closed position by moving a magnet between two positions. The magnet produces a magnetic flux that travels through a magnetically conductive layer. The magnetic flux within the magnetically conductive layer forcibly draws a contact element into contact with an electrically conductive layer and electrically shorts the open electrical contacts.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: June 12, 2001
    Assignee: Honeywell International INC
    Inventors: Daniel W. Youngner, Jeffrey A. Ridley
  • Patent number: 6229417
    Abstract: An operator assembly for an electromagnetic switching device includes a pair of insulative boards arranged in mutually facing relation. A first board carries first contacts, which may be arranged in pairs, while a second board carries second contacts designed to engage the first contacts upon closure. The first and second boards are pivotally secured to one another to rock between open and closed positions. A biasing member urges the board towards a normal position. The first board supports an electromagnet assembly and conductive traces for transmitting energizing current to the electromagnet coil. The second board supports an armature which is displaced under the influence of the electromagnet assembly during energization, thereby pivoting the boards with respect to one another against the force of the biasing member, and moving the first and second contacts into engagement.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: May 8, 2001
    Assignee: Rockwell Technologies, LLC
    Inventor: Raymond H. Hannula
  • Patent number: 6140895
    Abstract: An electromagnetic relay having an armature-spring subassembly that matingly cooperates with a base body having stationary and moving contact elements and stationary terminal elements. The armature-spring subassembly includes a contact arrangement and an armature pivotably mounted to said contact arrangement. The contact arrangement includes two torsion spring ridges and a plurality of contact springs that are attached to both torsion spring ridges.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: October 31, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Dittmann, Martin Hanke, Jens Heinrich
  • Patent number: 6133813
    Abstract: A relay has a leaf spring that is secured to a planar seating section of a yoke leg and/or to the planar seating section of the armature and has an unsecured spring section extending beyond the free end of the yoke leg or, respectively, the armature. In order to avoid a plastic deformation of the leaf spring given impacts, the planar seating section respectively merges into a convexly curved roll-off section of which the leaf spring rolls off given a blow without being bent permanently. The end of the roll-off motion is expediently limited by a detent and, in this way, it is assured that the relay does not suffer any permanent modifications of its characteristics, even given heavy blows.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: October 17, 2000
    Assignee: Siemens Electromechanical Components GmbH & Co. KG
    Inventors: Martin Hanke, Thomas Buescher
  • Patent number: 5994987
    Abstract: An improved trip mechanism for an overload relay includes a housing, a bistable armature mounted in the housing on a pivot for pivotal movement between two stable positions and fixed contacts within the housing. Moveable contacts are located within the housing and springs engage the moveable contacts and urge the same toward the fixed contacts to establish an electrical conducting relationship therebetween. Moveable, contact engaging posts are located on the armature and opposite of the springs for engaging the moveable contacts and moving them away from the fixed contacts against the bias of the springs for one of the two stable positions and for effectively disengaging the moveable contacts to allow the springs to move the moveable contacts into the electrical conducting relation. The relay further includes a latch surface carried by the housing and a spring mounted on the housing and having a latch finger for engaging the latch surface and retaining the armature in one of its two positions.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: November 30, 1999
    Assignee: Siemens Energy & Automation, Inc.
    Inventor: Christian Henry Passow
  • Patent number: 5936496
    Abstract: An electromagnetic relay is provided with a coil body that is preferably composed of ceramic with a winding and a U-shaped core yoke whose ends are bridged by a flat armature. The armature actuates an insulating switching spring made of ceramic or a similar material that, crosses the armature at about a 90.degree. angle, and extends between the ends of the core yoke and bridges two cooperating contacts at its movable end with a bridge contact. The relay can be utilized even in a very small design at high ambient temperatures.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 10, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Josef Kern
  • Patent number: 5894255
    Abstract: The present disclosure is directed to a relay. The relay includes a frame and a header seal assembly base having contacts and a return spring. The relay also includes an armature assembly which engages the return spring. The armature assembly has at least one actuator. The relay further includes a core assembly located on the armature assembly. The core assembly has an end engaging the frame. The relay also includes a coil shim having a cutout section. The coil shim is connected to the frame and the cutout section engages the armature assembly when the relay is in the de-energized state. The coil shim has an opening for accepting the core assembly. The relay also includes a coil engaging the coil shim. The coil has an opening for accepting the core assembly.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: April 13, 1999
    Assignee: Allegheny Ludlum Corporation
    Inventor: James M. Wallintin
  • Patent number: 5880654
    Abstract: An electromagnetic relay comprising a smaller number of components and would be shorter than its predecessors. A movable block and a contact mechanism in a conventional relay are arrayed in a linear fashion, which tends to increase the length of the relay. This relay, however, has a movable block placed on a electromagnetic block, and a drive rod extending from the movable block drives a contact mechanism which is installed on one side of the electromagnetic block to short the length of the relay.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: March 9, 1999
    Assignee: Omron Corporation
    Inventors: Tatsunori Yamaguchi, Takashi Noguchi
  • Patent number: 5579198
    Abstract: A circuit interrupter provides a conducting path between two conductors and interrupts the conducting path in response to overcurrent conditions in the conductors. The interrupter includes a magnetic core around which the conductors are disposed. Each conductor is electrically coupled to an arc runner and a spanner is biased into contact with the arc runners to compete a conducting path between the conductors. A secondary response mechanism is provided adjacent to the core and includes arms extending around the core and a magnetic body. In response to overcurrent conditions of a first magnitude the body of the secondary response mechanism is attracted to the core causing the arms to displace the spanner out of contact with the arc runners. In response to overcurrent conditions of a second magnitude, such as due to direct short circuits, the spanner is repelled rapidly to a non-conducting position and the secondary response mechanism is attracted to the core to hold the spanner in the non-conducting position.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: November 26, 1996
    Assignee: Allen-Bradley Company, Inc.
    Inventors: Christopher J. Wieloch, Mark A. Kappel, Jeffrey R. Annis, David J. Benard, Ellen Boehmer, Gernot Hildebrandt
  • Patent number: 4695813
    Abstract: A polarized electromagnetic relay includes a flat-shaped armature pivotally supported at its center, an electromagnet with a pair of pole members extending toward the armature ends on either side of the center pivot axis, and a three-pole magnetized permanent magnet bridging between the pole members in generally parallel relation with the armature. A pair of movable contact springs extends along the lateral sides of the armature and joined at its center portion to the armature to be movable therewith. Integrally formed with each movable contact spring is a pivot arm which extends transversely from the center thereof and is fixedly secured to a relay casing. The pivot arm defines itself a resilient torsion element of limited deformability by which the armature is supported on the relay casing and is permitted to pivot about the center pivot axis for movement between the two angular positions.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: September 22, 1987
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Nobutoki, Kenji Ono
  • Patent number: 4535311
    Abstract: In an electromagnetic relay, a first stationary contact member (25) has a first, elongated portion (25a) extending between first and second insulative supports and a second portion (25b) extending in a direction normal to the first portion. The second portion includes a first stationary contact (25c) element and a heat radiating surface (25b, 25f) for radiating a substantial amount of heat generated by an arc so that the amount of heat which is conducted to the first support (13) is insufficient to cause a fusion to occur therein. A second stationary contact member (26) has a third, elongated portion (26a) extending between the first and second supports and a fourth, elongated portion (26b) extending in a direction normal to the third portion in spaced relationship to the second portion (25b) and having a second stationary contact element (26c) in opposed relationship with the first stationary contact element.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: August 13, 1985
    Assignee: NEC Corporation
    Inventors: Naoto Okihara, Masayuki Morimoto, Tatsumi Ide
  • Patent number: 4491813
    Abstract: An electromagnetic relay has a bar-shaped armature which is mounted at one end at a coil flange in a carrier comprised of insulating material, in which center contact blades are also mounted at opposite sides of the armature such that movement of the armature is transmitted to the contact blades through the carrier, thus eliminating the plunger which is normally present for contact actuation. The offset positioning of the contact blades with respect to the armature in the carrier causes friction which substantially prevents damaging impact of the contact pads of the contact blades with respectively mating stationary contact pads.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: January 1, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rolf-Dieter Kimpel, Horst Tamm, Wolfgang Hubner, Erwin Steiger
  • Patent number: 4490705
    Abstract: A relay has a bar-shaped armature which is seated at a location of one coil end over an armature carrier comprised of insulating material. For the purpose of seating, taut bands projecting in a direction of the rotational axis of the armature are integrated on the armature carrier, said taut bands forming suspension heads at their free ends. The armature carrier is engagably secured over said suspension heads between fork-shaped ends of retaining arms integrated on the coil body. Given movement of the armature, the taut bands are twisted so that a friction-free armature bearing is created.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: December 25, 1984
    Assignee: Siemens Aktiengesellschaft
    Inventor: Erwin Mueller
  • Patent number: 4064470
    Abstract: The specification describes a device termed a silent obturator which is in the form of a flexible strip having at least one mounting hole at one end portion at least and supported in bowed or arcuate configuration between two supports, one of which is movable toward the other and which carries a "moveable" contact member near but not at the mid-point thereof whereby motion of one support relative to the other causes outward or inward deflection of the obturator relative to a line between the supports in such manner as to displace the contact member toward the fixed support in one coordinate direction and away from the line between said supports in another coordinate direction effectively providing a resultant path of motion at an angle to the line between said supports which, when said moveable contact member is placed in spaced association with a "fixed" contact member relatively fixed in space provides a contact action therewith which is substantially tangential relative to the bow or curve of the obturator
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: December 20, 1977
    Assignee: TRW Inc.
    Inventor: Rodney Hayden
  • Patent number: 3964005
    Abstract: Two relays and a push-to-start switch are mounted together on a common frame within a common housing. The cores and coils for the devices are mounted in spaced parallel relationship on the frame. Three legs which extend from one side of the frame are supported adjacent an edge of an insulated terminal strip which latter supports the terminals, contacts, and contact arms for the devices. Two legs which extend at right angles to the first-mentioned legs and which are bent from spaces therebetween are received by slots in a base plate which is also slotted to receive portions of the terminal strip and the frame to support the same. Recesses are formed in the housing member adjacent to the base plate to allow insulated conductors to enter the housing. The recesses contain teeth that bite into the insulation over the conductors to prevent them from being moved longitudinally.
    Type: Grant
    Filed: June 28, 1974
    Date of Patent: June 15, 1976
    Inventor: Spencer C. Schantz