Contact Composition Or Structure Patents (Class 335/196)
  • Patent number: 9741517
    Abstract: An electromagnetic relay includes plural pairs of fixed terminals each including an external input/output terminal and an external output/input terminal that can be electrically connected to the external input/output terminal the external input/output terminal and the external output/input terminal being paired with and separated from each other. A tip portion of the external input/output terminal and a tip portion of the external output/input terminal paired with each other are aligned along a straight line extending in a direction substantially parallel to a virtual straight line in a plan view, and the straight lines on which the respective pairs of the tip portions are aligned are offset from each other in a direction vertical to the virtual straight lines.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 22, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Tatsuo Aratani
  • Patent number: 9186183
    Abstract: A distraction system includes a distraction rod having one end configured for affixation to at a first location on patient. The system further includes an adjustable portion configured for placement in the patient at a second location, the adjustable portion comprising a housing containing a magnetic assembly comprising a magnet, the magnetic assembly secured to a threaded element that interfaces with an opposing end of the distraction rod. The system includes a magnetically permeable member in proximity to the magnetic assembly and covering an arc of less than 360° of the adjustable portion.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: November 17, 2015
    Assignee: Ellipse Technologies, Inc.
    Inventors: Scott Pool, Arvin Chang
  • Patent number: 9117612
    Abstract: A triggering unit includes a tappet having a moving bearing, a power accumulator, a holding device and a printed circuit board coil. In the normal state the power accumulator acts upon the tappet with a power accumulator force in the direction of the first stop position and the holding device holds the tappet with a holding force in the second stop position. A printed circuit board coil force can be generated by an activation of the printed circuit board coil. The power accumulator, the holding device and the printed circuit board coil are formed such that the tappet rests in the second stop position in the inactive state of the printed circuit board coil and through an activation of the printed circuit board coil, the tappet assumes the first stop position such that the triggered status is given.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: August 25, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Wolfgang Feil, Martin Maier, Klaus Pfitzner
  • Publication number: 20150116878
    Abstract: A dropout recloser is capable of in accordance with its operating programming after a predetermined number of fault interrupting operations, e.g., 1, 2, 3 or more but typically 3, to drop out of a cutout and hang freely in a hinge contact of the cutout providing sectionalization with an observable visible gap. The recloser includes fault interrupting and reclosing components, a drop out mechanism and a controller. The drop out mechanism may include a bi-stable actuator to affect fault interrupting operation and dropout operation. The device may include motion limiting structures. The recloser may have a number of operating modes or sequences.
    Type: Application
    Filed: May 7, 2013
    Publication date: April 30, 2015
    Applicant: S&C ELECTRIC COMPANY
    Inventors: Smith G. Richard, Yujian Zhou, Jorge Montante, Montengro Alejandro, Michael Ross
  • Patent number: 8981883
    Abstract: A contact mechanism is capable of, without enlarging the entire configuration thereof, preventing the generation of an electromagnetic repulsion that opens a movable contact upon application of a current, and also provides an electromagnetic contactor that uses this contact mechanism. A contact mechanism has a fixed contact and a movable contact that are inserted in a current-carrying path. In the contact mechanism, the fixed contact or the movable contact is formed into an L-shape or a U-shape so as to generate a Lorentz force that acts against an electromagnetic repulsion in an opening direction, which is generated between the fixed contact and the movable contact upon application of a current.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: March 17, 2015
    Assignees: Fuji Electric FA Components & Systems Co., Ltd., Fuji Electric Co., Ltd.
    Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki
  • Publication number: 20140368302
    Abstract: A relay contact system includes a first conductive plate, a first resilient plate, a second conductive plate and a second resilient plate. One end of the first conductive plate is a free end, and another opposing end is a connecting end. One end of the first resilient plate is a free end provided with a first contact, and another opposing end is a connecting end. The connecting ends of the first conductive plate and the first resilient plate are connected together. The free ends of the first conductive plate and the first resilient plate are arranged in the same direction and form a first zigzag configuration. The second conductive plate and the second resilient plate having a second contact on its free end and form a second zigzag configuration. The first and second zigzag configurations are connected or disconnected through the first and second contacts.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 18, 2014
    Applicants: SHANGHAI WANJIA PRECISION COMPONENTS CO.,LTD, DONGGUAN SANYOU ELECTRICAL APPLIANCES CO.,LTD
    Inventor: Chao-Yang SONG
  • Publication number: 20140266522
    Abstract: A contact mechanism is capable of, without enlarging the entire configuration thereof, preventing the generation of an electromagnetic repulsion that opens a movable contact upon application of a current, and also provides an electromagnetic contactor that uses this contact mechanism. A contact mechanism has a fixed contact and a movable contact that are inserted in a current-carrying path. In the contact mechanism, the fixed contact or the movable contact is formed into an L-shape or a U-shape so as to generate a Lorentz force that acts against an electromagnetic repulsion in an opening direction, which is generated between the fixed contact and the movable contact upon application of a current.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 18, 2014
    Applicants: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD., FUJI ELECTRIC CO., LTD.
    Inventors: Yasuhiro NAKA, Kouetsu TAKAYA, Kenji SUZUKI
  • Patent number: 8836456
    Abstract: An electromagnetic contactor has a contact device including a pair of fixed contacts disposed to maintain a predetermined distance and a movable contact disposed to be capable of contacting to and separating from the pair of fixed contacts. An insulating cover covering all except a contact portion contacting with the movable contact is mounted on the pair of fixed contacts.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: September 16, 2014
    Assignees: Fuji Electric Co., Ltd., Fuji Electric FA Components & Systems Co., Ltd.
    Inventors: Hiroyuki Tachikawa, Masaru Isozaki, Osamu Kashimura, Kouetsu Takaya, Yasuhiro Naka, Yuji Shiba
  • Patent number: 8816803
    Abstract: The present invention provides a contact mechanism that is capable of, without enlarging the entire configuration thereof, preventing the generation of an electromagnetic repulsion that opens a movable contact upon application of a current, and also provides an electromagnetic contactor that uses this contact mechanism. A contact mechanism (CM) has a fixed contact (2) and a movable contact (3) that are inserted in a current-carrying path. In the contact mechanism (CM), at least either the fixed contact (2) or the movable contact (3) is formed into an L-shape or a U-shape so as to generate a Lorentz force that acts against an electromagnetic repulsion in an opening direction, which is generated between the fixed contact (2) and the movable contact (3) upon application of a current.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 26, 2014
    Assignees: Fuji Electric Fa Components & Systems Co., Ltd., Fuji Electric Co., Ltd.
    Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki
  • Publication number: 20140218140
    Abstract: A movable contact assembly for use with a transfer switch, the moveable contact assembly comprising a center portion, a first conductor portion extending from the center portion, the first conductor portion comprising a first arm comprising two longitudinal extending fingers; and a second conductor portion extending from the center portion, the second conductor portion comprising a second arm comprising two longitudinally extending fingers. The moveable contact assembly may be pivoted about the center portion from a first position to a second position. In the first position, the two longitudinally extending fingers of the first conductor portion resides in a conductive state with a blade connector of a first stationary contact assembly and in the second position, the two longitudinally extending fingers of the second conductor portion resides in a conductive state with a blade connector of a second stationary contact assembly.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Applicant: ASCO POWER TECHNOLOGIES, L.P.
    Inventors: Walter Dolinski, Wei Li Chuang
  • Patent number: 8786388
    Abstract: The invention relates to an electromagnetic switch (16) for a starting device (10), comprising two contacts (180, 181) that are electroconductively inter-connected by a mobile contact bridge (184). At least one of the two contacts (180, 181) preferably comprises a contact surface (300) fixed to a contact stud (150, 151).
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: July 22, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Houman Ramezanian, Claus Kramer, Michael Froehlich-Schlapp
  • Publication number: 20130342294
    Abstract: A contactor arrangement for operation in a dielectric liquid environment may include a first connection terminal and a second connection terminal, a contactor having a fixed contact, and a movable contact that is movable relative to the fixed contact, the contactor having an open state in which the movable contact is spaced apart from the fixed contact and a closed state in which the movable contact is in contact with the fixed contact so as to provide an electric connection through the contactor via the movable contact. The contactor arrangement may further include a conductor section.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventor: Fredrik Gundersen Aarskog
  • Publication number: 20130229247
    Abstract: An electromagnetic contactor has a contact device including a pair of fixed contacts disposed to maintain a predetermined distance and a movable contact disposed to be capable of contacting to and separating from the pair of fixed contacts. An insulating cover covering all except a contact portion contacting with the movable contact is mounted on the pair of fixed contacts.
    Type: Application
    Filed: May 9, 2012
    Publication date: September 5, 2013
    Applicant: Fuji Electric FA Componets & Systems Co., Ltd
    Inventors: Hiroyuki Tachikawa, Masaru Isozaki, Osamu Kashimura, Kouetsu Takaya, Yasuhiro Naka, Yuji Shiba
  • Patent number: 8487723
    Abstract: The present invention relates to a contact assembly for a relay for switching high load currents having at least one switch contact and a braid having at least one braid end, which are electrically conductively connected to each other by a connection element. Further, the invention relates to a relay for switching high load currents with a contact assembly. Finally, the invention relates to a method for mounting a relay for switching high load currents. For the simple, electrically conductive connection of the braid and the switch contact without the contact assembly produced requiring much space within the relay, it is provided in accordance with the invention that the connection element is equipped with a contact portion directly connected to the switch contact and with a connection strap connected to the braid end, wherein the connection strap is inclined relative to the contact portion.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: July 16, 2013
    Assignee: Tyco Electronics AMP GmbH
    Inventors: Axel Schneider, Thomas Haehnel, Christian Maranke, Joerg Schultheiss, Albert Koetter
  • Publication number: 20130113580
    Abstract: The present invention provides a contact mechanism that is capable of, without enlarging the entire configuration thereof, preventing the generation of an electromagnetic repulsion that opens a movable contact upon application of a current, and also provides an electromagnetic contactor that uses this contact mechanism. A contact mechanism (CM) has a fixed contact (2) and a movable contact (3) that are inserted in a current-carrying path. In the contact mechanism (CM), at least either the fixed contact (2) or the movable contact (3) is formed into an L-shape or a U-shape so as to generate a Lorentz force that acts against an electromagnetic repulsion in an opening direction, which is generated between the fixed contact (2) and the movable contact (3) upon application of a current.
    Type: Application
    Filed: June 14, 2011
    Publication date: May 9, 2013
    Applicants: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Yasuhiro Naka, Kouetsu Takaya, Kenji Suzuki
  • Publication number: 20130113581
    Abstract: To promptly extinguish an arc generated between contacts with a simple and inexpensive structure without negatively influencing the spring property of a movable contact piece. A contact switching mechanism includes a fixed contact piece with a fixed contact and a movable contact piece with a movable contact which faces the fixed contact in a contactable manner. At least either one of the contact pieces is provided with an extension which extends toward the contact of the remaining contact piece.
    Type: Application
    Filed: October 22, 2012
    Publication date: May 9, 2013
    Applicant: OMRON CORPORATION
    Inventor: OMRON CORPORATION
  • Patent number: 8269585
    Abstract: An electromagnetic switch includes: a stationary contact; a movable contact movably provided with respect to the stationary contact; a coil configured to move the movable contact to a side of the stationary contact by means of current conduction; and a shaft provided inside the coil such that the movable contact is provided at an end portion thereof, wherein a snap-fit portion having a pair of hooks disposed to face each other is provided at an end portion of the shaft, and the movable contact is fixed between the end portion of the shaft and the hook.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: September 18, 2012
    Assignee: LSIS Co., Ltd.
    Inventor: Yeon Soon Choi
  • Publication number: 20120194306
    Abstract: A micro relay of a micro-electro-mechanical system (MEMS), includes a cap substrate, a first electrical contact, an actuator, and a second electrical contact. The first electrical contact is formed on the cap substrate, includes a platinum group metal, and includes a first surface layer of an oxide of the platinum group metal. The second electrical contact is formed on the actuator, includes the platinum group metal, and includes a second surface layer of the oxide of the platinum group metal. At least a first portion of the first surface layer contacts at least a second portion of the second surface layer during cycling of the micro relay.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 2, 2012
    Applicant: Maxim Integrated Products, Inc.
    Inventors: Uppili Sridhar, Quanbo Zou, Amit S. Kelkar, Xuejun Ying
  • Publication number: 20120146750
    Abstract: An electromagnetic contact device has a terminal base (18) formed on one end of a coil frame around which a winding of an electromagnetic coil is wound; a terminal (20a) which can be connected to external wiring, and a winding wire binding portion (20e) which can bind an end portion of the winding, wound around the coil frame to establish connection. The coil terminal (20) is a component formed by integrating the terminal (20a), the winding wire binding portion (20e), and a portion to be engaged (20b). This coil terminal (20) is mounted by press-fitting a press-fit engaging portion (18b), which is formed in the terminal base (18), in the portion to be engaged (20b) to establish engagement.
    Type: Application
    Filed: June 14, 2010
    Publication date: June 14, 2012
    Applicant: Fuji Electric FA components & Systems Co., Ltd.
    Inventors: Kouetsu Takaya, Koji Okubo, Yasuhiro Naka, Toshikatsu Ohgami, Kenji Suzuki
  • Patent number: 8143979
    Abstract: Terminal-bolts and a fixed contact are formed with different kinds of metals, and fixed to a fixing hole formed in the fixed contact by press fitting one end of the terminal-bolts. A plurality of concavo-convex parts is provided on a surface of the fixed contact that faces the movable contact. A plurality of concavo-convex portions is provided on another surface of the fixed contact that faces an anti movable-contact side. The concavo-convex portions are arranged so that positions of concave parts of the concavo-convex portions match positions of convex parts of the concavo-convex portions provided in the opposite surface of the fixed contact. The concavo-convex parts are at least partly curved, and have the same height and project in a height direction from the fixed contact.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: March 27, 2012
    Assignee: Denso Corporation
    Inventors: Shinji Usami, Masami Niimi, Mitsuhiro Murata, Mikio Saitoh
  • Patent number: 8134429
    Abstract: An electrical appliance designed according to the principle of a fork connection, and into which a contact element is insertable between two contact clips. In the event of high currents, such as those which can occur in the event of short circuits in a load which is connected to the fork connection, magnetic forces counteract current constriction forces, thus allowing higher currents to be carried through the connection without the contact clips being bent apart from one another in the process. This is achieved in that a magnetic field caused by a current is concentrated in a particularly advantageous manner for production of forces which draw the two clip contacts together with the aid of a part at least partially composed of a ferromagnetic material, one of which in at least one embodiment, is arranged between the contact clips.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: March 13, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Oliver Harling
  • Publication number: 20110279202
    Abstract: The invention relates to an electromagnetic switch (16) for a starting device (10), comprising two contacts (180, 181) that are electroconductively inter-connected by a mobile contact bridge (184). At least one of the two contacts (180, 181) preferably comprises a contact surface (300) fixed to a contact stud (150, 151).
    Type: Application
    Filed: October 27, 2009
    Publication date: November 17, 2011
    Applicant: Robert Bosch GmbH
    Inventors: Houman Ramezanian, Claus Kramer, Michael Froehlich-Schlapp
  • Patent number: 8054148
    Abstract: A device for controlling the flow of electric current is provided. The device comprises a first conductor as thin film form; a second conductor switchably coupled to the first conductor to alternate between an electrically connected state with the first conductor and an electrically disconnected state with the first conductor. At least one conductor further comprises an electrical contact, the electrical contact comprising a solid matrix comprising a plurality of pores; and a filler material disposed within at least a portion of the plurality of pores. The filler material has a melting point of less than about 575 K. A method to make an electrical contact is provided. The method includes the steps of: providing a substrate; providing a plurality of pores on the substrate; and disposing a filler material within at least a portion of the plurality of pores. The filler material has a melting point of less than about 575 K.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: November 8, 2011
    Assignee: General Electric Company
    Inventors: Duraiswamy Srinivasan, Reed Roeder Corderman, Christopher Fred Keimel, Somasundaram Gunasekaran, Sudhakar Eddula Reddy, Arun Virupaksha Gowda, Kanakasabapathi Subramanian, Om Prakash
  • Publication number: 20110234340
    Abstract: The invention relates to a contact arrangement (1) for a relay for switching high load currents. Furthermore, the invention relates to a relay (43) for switching high load currents having a contact arrangement (1). Finally, the invention relates to a method for assembling a relay. In order to be able to assemble the contact arrangement (1) in the relay in an at least partially automated manner, without additional retention devices being required for a cord (4), there is provision according to the invention for the cord (4) to be retained in an inherently stable manner owing to its shape as a self-supporting structure and for the method to have a method step in which the cord (4) is shaped to form a self-supporting structure with a bent shape.
    Type: Application
    Filed: July 24, 2009
    Publication date: September 29, 2011
    Applicant: Tyco Electronics AMP GmbH
    Inventors: Axel Schneider, Thomas Haehnel, Christian Maranke, Joerg Schultheiss, Albert Koetter
  • Patent number: 7973625
    Abstract: The present invention relates to an auxiliary contact block. The auxiliary contact block comprises a housing and a tool free latching mechanism. The tool free latching mechanism further comprising a stationary member integral to the housing and a latching bar. The latching bar comprising a button in communication with a moveable member by a central body.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: July 5, 2011
    Assignee: General Electric Company
    Inventors: Namitha Chandrappa, Subramanyan Ananthakrishnan, G. Kalyana Sundaram, Pedro Jose Riera
  • Publication number: 20110156848
    Abstract: The present invention relates to a contact assembly for a relay for switching high load currents having at least one switch contact and a braid having at least one braid end, which are electrically conductively connected to each other by a connection element. Further, the invention relates to a relay for switching high load currents with a contact assembly. Finally, the invention relates to a method for mounting a relay for switching high load currents. For the simple, electrically conductive connection of the braid and the switch contact without the contact assembly produced requiring much space within the relay, it is provided in accordance with the invention that the connection element is equipped with a contact portion directly connected to the switch contact and with a connection strap connected to the braid end, wherein the connection strap is inclined relative to the contact portion.
    Type: Application
    Filed: August 14, 2009
    Publication date: June 30, 2011
    Inventors: Axel Schneider, Thomas Haehnel, Christian Maranke, Joerg Schultheiss, Albert Koetter
  • Patent number: 7902948
    Abstract: A switching device, in particular a power switching device, has two pairs of series-connected switching contacts for interrupting a conducting path and at least one quenching packet, disposed near the pairs of switching contacts, for quenching the arcs occurring when the conducting path opens. The pairs of switching contacts are arranged such that their opening paths are substantially mutually parallel or antiparallel. The pairs of switching contacts are connected in series such that the same current flowing in both arcs flows spatially in the same direction. The quenching packet is disposed in the area between the opening paths.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: March 8, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Carsten Lüders
  • Patent number: 7868720
    Abstract: A hermetically sealed relay is provided having two circuits therein.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: January 11, 2011
    Assignees: Tyco Electronics Corporation India, Tyco Electronics Corporation
    Inventors: Bernard Victor Bush, Naveen Samuel Jesuraj
  • Publication number: 20110001589
    Abstract: Terminal-bolts and a fixed contact are formed with different kinds of metals, and fixed to a fixing hole formed in the fixed contact by press fitting one end of the terminal-bolts. A plurality of concavo-convex parts is provided on a surface of the fixed contact that faces the movable contact. A plurality of concavo-convex portions is provided on another surface of the fixed contact that faces an anti movable-contact side. The concavo-convex portions are arranged so that positions of concave parts of the concavo-convex portions match positions of convex parts of the concavo-convex portions provided in the opposite surface of the fixed contact. The concavo-convex parts are at least partly curved, and have the same height and project in a height direction from the fixed contact.
    Type: Application
    Filed: June 25, 2010
    Publication date: January 6, 2011
    Applicant: DENSO CORPORATION
    Inventors: Shinji USAMI, Masami NIIMI, Mitsuhiro MURATA, Mikio SAITOH
  • Patent number: 7843289
    Abstract: An improved electromechanical switch designed to operate at frequencies from DC through microwave has terminal probe tips that are formed from an alloy of noble metal and contoured with a pattern of peaks and valleys in order to provide better contact wiping operation and capture of wear debris. The switch incorporates damper elements to reduce switching contact bounce, thus providing increased contact life as well as higher quality signal switching.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: November 30, 2010
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk
  • Patent number: 7777601
    Abstract: A movable contacting device in a circuit breaker comprises: a crossbar linked with the opening/closing mechanism and carried so as to pivot cooperatively with the opening/closing mechanism; a movable contact arm engaged, so as to cooperational with the crossbar, with a shaft fitted into a mutually opposing recesses in the crossbar; and a movable contact arm support fixed to the case accomodating the opening/closing mechanism and having mutually opposing through-holes through which the shaft is passed; and the movable contact being configured so that the movable contact slides between surfaces of movable contact arm support having the mutually opposing through-holes; and the construction of a single-pole portion of the movable contact arm is constituted by arranging in parallel two movable contact arm members each having a movable contact at one end, and in a shaft-supporting portion at the other end, an elastic member is sandwiched between the two movable contact arm members.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: August 17, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Kakisako, Hitoshi Ito, Kozo Maeta, Masanori Kawamura, Shigeki Koumoto
  • Patent number: 7663457
    Abstract: Magnetically latching and releasing a voice coil actuator for controlling electrical switchgear. The voice coil actuator includes a voice coil magnet disposed on a common longitudinal axis with respect to a voice coil assembly. A coil of the voice coil assembly exerts a magnetic force on the voice coil assembly, thrusting the voice coil assembly towards the voice coil magnet. At least one pair of latching members mounted to the voice coil assembly creates a permanent magnet circuit between the latching members and the voice coil magnet. The permanent magnet circuit maintains the position of the voice coil assembly relative to the voice coil magnet, even when power to the coil is removed. This latch can be released by applying a current in the coil or by applying an external, physical force to a member coupled to the voice coil assembly.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: February 16, 2010
    Assignee: Cooper Technologies Company
    Inventors: Bela Peter Szeifert, Michael Peter Dunk
  • Patent number: 7646270
    Abstract: A spring assembly is provided for a yoke assembly of an electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism structured to open and close the separable contacts. The operating mechanism includes a pole shaft. The yoke assembly is coupled to the pole shaft and is movable among first and second positions corresponding to the separable contacts being closed and open, respectively. The spring assembly includes a number of first springs having a first spring rate and being coupled to the yoke assembly, and a number of second springs having a second spring rate and being coupled to the yoke assembly. The second spring rate is different than the first spring rate. The number of first springs and the number of second springs bias the yoke assembly toward the second position.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: January 12, 2010
    Assignee: Eaton Corporation
    Inventors: Yuri Spitsberg, Robert M. Slepian, Perry R. Gibson, David A. Parks, Douglas C. Marks, Paul R. Rakus, Nathan J. Weister, Henry A. Wehrli, III
  • Patent number: 7642480
    Abstract: In order to reduce the breaking energy of a high-voltage or medium-voltage circuit-breaker, the interrupting chamber (10) contains two contacts (12, 14) mounted to move in opposite directions, and actuated via a single device (20). The two contacts (12, 14) are surrounded by an insulating casing (18) of tubular shape, coupled in fixed manner to the main contact (12). The contacts (12, 14) are actuated by a device having a lever (24) in which each lever arm is coupled to a link, one of the links (32) being secured to the insulating casing (18) and the other link (34) being secured to the second contact (14). The guiding of the drive tube (18) on the main contacts (12b, 14b) makes it possible to improve breaking by keeping clean gas between said main contacts.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: January 5, 2010
    Assignee: Areva T&D SA
    Inventors: Joel Ozil, Christophe Creusot, Jean-Luc Bourgeois, Yannick Kieffel
  • Publication number: 20090322456
    Abstract: A starter solenoid comprises a solenoid cap defining a contact channel. A first terminal and a second terminal are provided on the solenoid cap. A contact is moveable within the channel between a first position where the contact touches the first and second terminals and a second position where the contact is removed from the first and second terminals. A shield is positioned in the channel to space the contact apart from the channel walls. The contact comprises a first terminal face connected to a second terminal face. The first and second terminal faces are configured to respectively contact the first and second terminals when the contact is in the first position. Opposing lips extend from opposite sides of the first terminal face with a curved shoulder provided between the first terminal face and each of the opposing lips.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: REMY INTERNATIONAL, INC.
    Inventors: Peter K. Farrar, David A. Fulton, Darrell Stephens
  • Patent number: 7633361
    Abstract: An improved electromechanical RF switch provides enhanced reliability and lifespan by incorporating a middle plate between the case and base elements for locating the guide pins, reed holders and reeds to increase accuracy in critical component alignment. The middle plate reduces required precision during assembly of the switch, thus increasing assembly accuracy while reducing labor cost. The guide pins are made of a hard insulator such as glass to generate less wear particles, and the reed holder has a groove filled with lubricant to trap any wear particles that result from sliding friction during switch operation. Optionally, a low-friction bushing is used within the case bore to further reduce sliding friction during reed holder travel. The reeds are made of thin, flexible metal and have ends shaped so that when the ends contact switching terminals, a wiping action removes any surface contamination from both the reed ends and the terminals.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: December 15, 2009
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk, Alexsander Meisarosh
  • Patent number: 7626280
    Abstract: A starter includes a magnetic switch, a motor, and a terminal. The terminal fixed to both the magnetic switch and the motor and has two end portions in the longitudinal direction of the terminal. An end portion of the terminal confronts a movable contact within the magnetic switch. The other end portion of the terminal is connected to an electric circuitry of the motor therewithin.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: December 1, 2009
    Assignee: Denso Corporation
    Inventors: Tadahiro Kurasawa, Kazuhiro Andoh, Yamato Utsunomiya, Shinji Usami
  • Patent number: 7616082
    Abstract: The electromagnetic relay of the present invention comprises a base (10), an electromagnet (20) disposed on the base, an armature (30) supported rotatably by the base, a movable spring (40) whose one end has a movable contact (41) and the opposite end is secured to the base, a fixed contact (51) disposed opposite to the movable contact, and a card (60). The card has a coupling part (61) to be coupled to the armature and an insertion hole (62) to which the one end of the movable spring is inserted, and it deforms the movable spring elastically in conjunction with a swing motion of the armature to selectively open or close a connection between the movable contact and the fixed contact. The movable spring has a U-shaped hook formed by bending the one end of the movable spring toward the opposite end side, and the hook can pass through the insertion hole while being pushed by an inner surface of the insertion hole and being deformed elastically, and an end of the hook is engaged with the card.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: November 10, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventor: Yoshimasa Katou
  • Patent number: 7598831
    Abstract: A relay, in particular for a starter for an internal combustion engine for use in a motor vehicle. The relay has a self-resilient contact bridge, which for a reversible change in shape effected by the contact pressure, in particular widening, is embodied in curved form.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: October 6, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Hans Braun, Josef Weigt, Steffen Fuhr
  • Patent number: 7598832
    Abstract: Contact pad designed to be fixed on a movable contact of a low-voltage circuit breaker designed to withstand peak short-circuit currents comprised between 200 and 600 amperes per square millimeter of pad. The pad is made of a silver- or copper-based conducting material alloy, a fraction of refractory particles such as tungsten carbide, tungsten or titanium nitride and a fraction of carbon fibers. The weight percentage of carbon fibers in the pad is strictly less than 2% of the total weight of the pad.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: October 6, 2009
    Assignee: Schneider Elecric Industries SAS
    Inventors: Marc Rival, Guy Gastaldin, Jean Paul Favre Tissot, Franck Pizot
  • Patent number: 7564330
    Abstract: A reed switch has a contact surface composed of three layers of metal applied to the contacts of the reed switch. The three layers comprise first a layer of titanium of approximately 15 to 150 micro inches, second a layer of molybdenum of 15 to 150 micro inches, and finally a contact layer of 5 to 20 micro inches of ruthenium, or other platinum group metal or alloy. The layers may be applied by any suitable methods, for example by sputtering.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: July 21, 2009
    Assignee: Key Safety Systems, Inc.
    Inventors: Mark Pickhard, John Wineke, David Lea, Andrew Petraszak, Steve Topel, Tom Lenz
  • Publication number: 20090058576
    Abstract: The present invention relates to a magnetic latching relay which can avoid influences of erection stress on internal structure parameters thereof The magnetic latching relay includes a yoke assembly, a magnetic steel assembly, a contact system having movable and immovable contact spring assemblies and a pusher pad, and a shell having a bottom case and an upper cover. Back contact springs of the movable contact spring assembly are arc-shaped and stacked on one side of each movable contact spring of the movable contact spring assembly. The bottom case has clip-shaped bosses which are formed outside two side walls of the bottom case to fasten extension ends of the movable and the immovable contact springs and supported with bolts to clamp the springs extending out of clip-shaped openings of the bosses.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: Shanghai BST Electrical Appliance Manufacturing Co., Ltd.
    Inventors: Zheng YANG, Zhongqin WANG
  • Patent number: 7492244
    Abstract: A code switch for an electrical appliance comprises triggering magnets at specific points in a rotatable rotor. Stationary opposite contacts are disposed in the housing of the code switch and wipers are provided with contact heads assigned to said opposite contacts at a disconnecting distance. When a triggering magnet is moved above an opposite contact by rotating the rotor, the contact head is pulled upward by magnetic force towards the opposite contact and the contact is closed.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: February 17, 2009
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventor: Wolfgang Hamm
  • Publication number: 20090027147
    Abstract: A starter for starting in-vehicle internal combustion engines comprise a motor, an electromagnetic switch and an electrically conductive connection member. The electromagnetic switch comprises first and second fixed contacts, a movable contact, an electromagnet moving back and forth to the movable contact to electrically connect and disconnect the first and second fixed contacts, and a cover covering the first and second contacts and movable contact. The predetermined direction is parallel to an armature provided in the motor. The electromagnet is provided with only a single coil generating a drive force for moving the movable contact. A connection member is arranged to be through the casing and the cover and electrically connects a brush of the armature in the motor and the second fixed contact in the switch. The connection member includes an end part arranged in the casing of the switch. This end part functionally provides the second fixed contact.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Applicant: DENSO CORPORATION
    Inventor: Kazuhiro Andoh
  • Patent number: 7474179
    Abstract: A contact spring assembly is provided for an electrical switching apparatus including a movable contact assembly and a stationary contact assembly having stationary electrical contacts. The movable contact assembly includes a carrier assembly, and movable contact arms pivotably coupled to the carrier assembly and carrying movable electrical contacts. The contact spring assembly includes a first contact spring housing member, a second contact spring housing member coupled to and disposed opposite from the first contact spring housing member, a spring guide disposed between and coupled to at least one of the first and second contact spring housing members and including spring holes, springs received in the spring holes, and sliders coupled to the springs. The springs and sliders individually bias the movable contact arms and movable electrical contacts toward engagement with corresponding stationary electrical contacts. A movable contact assembly and an electrical switching apparatus are also disclosed.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: January 6, 2009
    Assignee: Eaton Corportion
    Inventors: Nathan J. Weister, William C. Pollitt, John J. Shea, Douglas C. Marks
  • Patent number: 7473862
    Abstract: A movable contactor of a circuit breaker, comprising: a cage for angularly rotating with one side as a axis; a plurality of fingers disposed at the cage, including a path body portion having a predetermined thickness and having one end of an inclined plane, a wire connecting portion extending from one end of the path body portion with steps so as to have a certain area and having one horizontal plane, and an arc discharge portion extending from another end of the path body portion with a predetermined length so as to induce the discharge of the arc; and terminals each coupled to each of the fingers and for contacting or being separated from a fixed contactor according to the angular-rotation of the cage. Accordingly, the fabrication process for fingers is facilitated and the material cost necessary to fabricate the fingers can be reduced, thereby reducing the fabrication cost.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: January 6, 2009
    Assignee: LS Industrial Systems Co., Ltd.
    Inventor: Jae-Kwan Seo
  • Publication number: 20080231398
    Abstract: An electromagnetic relay includes a base including a fixed contact piece and a movable contact piece. The movable contact piece includes a movable contact point that is moved to contact and be separated from the fixed contact piece at a fixed contact point by driving the movable contact piece. The movable contact piece includes a terminal portion held in the base and partially protruding from the base, a first contact piece portion connected to the terminal portion and protruding from the base at a different position from the terminal portion, a bent portion connected to the first contact piece portion and changing a protruding direction gradually, and a second contact piece portion connected to the bent portion, extending in a different direction from a base portion, and provided with the movable contact point.
    Type: Application
    Filed: March 11, 2008
    Publication date: September 25, 2008
    Applicant: OMRON CORPORATION
    Inventors: Ryota Minowa, Norio Fukui, Tetsuya Fujiwara
  • Publication number: 20080024253
    Abstract: A starter includes a motor and an electromagnetic switch disposed close to and radially outward of the motor. The switch includes a contacts cover, a terminal bolt, and a conductive metal member. The contacts cover is cup-shaped. The terminal bolt is secured in the contacts cover so as to extend in the axial direction of the motor through an end wall of the contacts cover. The metal member has a first and a second end portion. The first end portion is inserted in the contacts cover through a side wall of the contacts cover. The second end portion is located outside the contacts cover and electrically connected to the motor. The switch further includes a movable contact, a first fixed contact that is electrically connected to a power source via the terminal bolt, and a second fixed contact made up of the first end portion of the metal member.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 31, 2008
    Applicant: DENSO CORPORATION
    Inventors: Tadahiro Kurasawa, Kazuhiro Andoh, Yamato Utsunomiya
  • 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: 7307500
    Abstract: An arrangement used to fix conductor rails for multi-phase switchgears to allow for mounting and dismantling the conductor rails in a simple manner is provided. The switchgear housing (4) comprises straight guide elements (16) which are used to receive the mounting position using the conductor rails (8). Each conductor rail (8) includes a continuous bore (22) which is covered by a receiving bore (24) when in a mounted position, the receiving bore being formed in the switchgear housing (4). Insertion journals (28) extend through the continuous bores (22) into the receiving bores (24) associated therewith and are combined with a connecting web (30) in order to form an insertion comb (26) made of an insulating material.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: December 11, 2007
    Assignee: Moeller GmbH
    Inventors: Karsten Gerving, Wolfgang Kremers