Armature, Contact Or Contact-actuating Means (e.g., Sealed Reed) Patents (Class 335/154)
  • Patent number: 11213687
    Abstract: This disclosure provides systems and methods for delivering a neural stimulation pulse. A neural implant device can include an energy harvesting circuit configured to receive an input signal and generate an electrical signal based on the received input signal. A diode rectifier in series with the energy harvesting circuit can rectify the electrical signal. The energy harvesting circuit and the diode rectifier can be encapsulated within a biocompatible electrically insulating material. A neural electrode can be exposed through the biocompatible electrically insulating material. The neural electrode can be configured to deliver a neural stimulation pulse. The neural implant device can have a volume that is less than about 1.0 cubic millimeter.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 4, 2022
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Jonathan Bernstein, Daniel Freeman, Reed Irion, Brett Ingersoll, Amy Duwel, Andrew Czarnecki, Brian Daniels, Anilkumar Harapanahalli Achyuta, Bryan McLaughlin
  • Patent number: 10984662
    Abstract: A system of automatically documenting a plurality of aircraft touchdown events detected by analyzing sensory data received from a plurality of sensors, comprising one or more interfaces for connecting to a plurality of sensors deployed to monitor at least part of a runway in an airport, the sensors comprising one or more image sensors, audio sensors and/or vibration sensors, and one or more processors coupled to the one or more interfaces. The processor(s) is adapted to receive sensory data from said plurality of sensors, the sensory data comprising image data, audio data and/or vibration data, identify a timing and a location of a landing touchdown event of an aircraft on the runway by analyzing the sensory data and classify the landing touchdown event as a normal landing touchdown event or an abnormal landing touchdown event based on the analysis.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: April 20, 2021
    Assignee: X—Sight Systems Ltd.
    Inventors: Alon Nitzan, Aviv Goner, Shlomit Teshuva-Winkler
  • Patent number: 10699865
    Abstract: Electromechanical switch includes first and second stationary contacts. Each of the first and second stationary contacts has a respective mating end. The electromechanical switch also includes a movable contact having first and second contact zones. The first and second contact zones are separate regions of the movable contact that are operable to be covered by the respective mating ends of the first and second stationary contacts, respectively. Each of the first and second contact zones has a mating surface and a corresponding recess that divides at least a portion of the mating surface. Each of the respective mating ends is configured to extend across the corresponding recess and engage the corresponding mating surface on opposite sides of the corresponding recess. The corresponding recess has a depth that extends only partially into the movable contact.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: June 30, 2020
    Assignee: TE Connectivity Corporation
    Inventors: Albert Yong Lee, Roger Lee Thrush
  • Patent number: 10153080
    Abstract: Provided is a reactor exhibiting stable magnetic characteristics. The reactor includes a coil, a magnetic core having an inner core portion and an outer core, and an end surface connecting member disposed between an end surface of the winding portion and the outer core portion. The reactor includes a resin-molded portion integrates integrating the outer core portion and the end surface connecting member, and a plurality of protruding portions provided disposed on an outer surface of the end surface connecting member on which the outer core portion is disposed and that supports the outer core portion at a distance from the outer surface, the resin-molded portion enters a gap formed between the outer surface and the outer core portion by the protruding portions, thereby forming a resin gap between the inner core portion and the outer core portion are being separated from each other by the end surface connecting member.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: December 11, 2018
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Misaki, Shinichirou Yamamoto
  • Patent number: 9903429
    Abstract: A brake is provided that employs an electromagnetic or magnetic circuit to disengage the brake and in which a reed switch is used to indicate an operating condition of the brake. The reed switch is positioned across an air gap between two members of the electromagnetic or magnetic circuit. The reed switch is oriented such that a longitudinal axis of the reed switch extends in a direction other than parallel to one or both of (i) the axis of rotation for rotating components of the brake and (ii) a direction of a magnetic force at a point in the air gap where the magnetic force is greatest.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 27, 2018
    Assignee: Warner Electric Technology LLC
    Inventor: Bradley Lyn Uffelman
  • Patent number: 9728358
    Abstract: A control device for an enclosure is disclosed, where the control device includes a first portion positioned proximate to a back side of an enclosure surface of the enclosure, and a second portion positioned proximate to a front side of the enclosure surface. The first portion can include a plunger having a proximal end and a distal end, where the proximal end is adjacent to the enclosure surface. The first portion can also include a first magnet having a first polarity and disposed at the proximal end of the plunger. The first portion can further include at least one contact in communication with the distal end of the plunger, where the at least one contact has a first state and a second state. The second portion can include a second magnet having a second polarity, where the second magnet has an engaged position and a disengaged position.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: August 8, 2017
    Assignee: Cooper Technologies Company
    Inventor: Lewis T. Henderson
  • Patent number: 9530551
    Abstract: A short travel solenoid actuator (44) is disclosed which comprises at least one pole piece (47, 48), an armature (51), an electromagnet coil (46) arranged, in response to energization, to actuate the armature between first and second positions. A permanent magnet (52) is positioned and orientated so as to latch the armature in the first and second positions when the armature is in the first and second positions respectively. A spring (53) is arranged to bias the armature.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: December 27, 2016
    Assignee: SENTEC LTD
    Inventor: Andrew Dames
  • Patent number: 9019053
    Abstract: A multi-position rotary switch whose handle is rotatable to a selected position to actuate a circuit for an electrically controlled device utilizing a magnetic sensor to initiate the actuating signal without any direct contact of traditional mechanical parts that suffer wear during repetitive operations.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 28, 2015
    Inventors: Raymond Contreras, Bern Maziar
  • Publication number: 20150084722
    Abstract: A switch includes: a second conductor; a second movable electrode provided in a second hermetic space so as to be movable in a first direction in which it parts from the fixed electrode and in a second direction opposite the first direction; an opposed electrode slidably provided in the fixed electrode to face the second movable electrode so as to open from and be in contact with the second movable electrode in an open state and a closed state respectively; a second driver which generates a driving force and moves the second movable electrode in the first direction when performing an opening operation; and a driving force transmitting mechanism which moves the opposed electrode in the second direction by converting a direction of the driving force for moving the second direction opposite the moving direction of the second movable electrode when the second driver generates the driving force for moving the second movable electrode in the first direction.
    Type: Application
    Filed: August 22, 2014
    Publication date: March 26, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroyuki SUGIYAMA, Yoshiaki OHDA, Masayuki ANDO
  • Patent number: 8841572
    Abstract: A switch device includes first and second contacting portions including first and second fixed contacting portions and first and second movable contacting portions configured to contact the first and second fixed contacting portions, respectively and provided to be adjacent from each other; and a magnet unit provided such that a first pole is positioned to face the first contacting portion and a second pole is positioned to face the second contacting portion to generate magnetic fields between the first fixed contacting portion and the first movable contacting portion and between the second fixed contacting portion and the second movable contacting portion, respectively.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: September 23, 2014
    Assignee: Fujitsu Component Limited
    Inventors: Daiei Iwamoto, Takashi Yuba, Koichi Kiryu, SeungSeok Beak, Akio Nakamura
  • Patent number: 8809719
    Abstract: A switch device includes first and second contacting portions including first and second fixed contacting portions and first and second movable contacting portions configured to contact the first and second fixed contacting portions, respectively and provided to be adjacent from each other; and a magnet unit provided such that a first pole is positioned to face the first contacting portion and a second pole is positioned to face the second contacting portion to generate magnetic fields between the first fixed contacting portion and the first movable contacting portion and between the second fixed contacting portion and the second movable contacting portion, respectively.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: August 19, 2014
    Assignee: Fujitsu Component Limited
    Inventors: Daiei Iwamoto, Takashi Yuba, Koichi Kiryu, SeungSeok Beak, Akio Nakamura
  • Patent number: 8797130
    Abstract: The magnetic switch assembly of an embodiment generally comprises a switch housing coupled to and/or adjacent to a magnet housing. The switch housing may be coupled to, for example, a door frame, a window frame, or other substantially fixed location. The magnet housing including at least one magnet may be coupled to, for example, a door or other substantially mobile location adjacent to the switch housing. The proximity to or distance from the magnets in the magnet housing may actuate one or more reed switches within the switch housing to open and/or close a circuit and/or otherwise generate a signal that may be communicated to, for example, a security system to detect whether the door is open or closed.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: August 5, 2014
    Assignee: Royne Industries, LLC
    Inventor: Robert Stevenson
  • Publication number: 20140158665
    Abstract: A sealed solenoid, magnetically operated electric power switch is suitable for use as capacitor, line and load switch operating at transmission and distribution voltages that includes no seals through the sealed container housing the contactor portion of the switch. The sealed solenoid switch includes a magnetically operated drive system with an actuator that magnetically couples across the container wall to avoid the use of a moving or sliding seal as part of the drive system. The sealed solenoid switch may also include a ballast resistor and resistor contact located inside the sealed container to avoid another seal as part of the ballast system. A magnetic latch holds the switch in a closed position, and a spring holds the switch in the closed position, to avoid the need for an energizing current to maintain the switch in either position.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 12, 2014
    Applicant: Southern States, LLC
    Inventors: Neil McCord, Joseph R. Rostron, Frank Blalock, Donald Swing, Roy Alexander, Kent Davey, William Horn
  • Patent number: 8549734
    Abstract: A method for manufacturing a sealed contact point is performed by injecting an arc extinguishing gas into an air-tight space of an electromagnetic switching device and sealing it. The method for manufacturing a sealed contactor, including: forming a driving body and coupling a housing and a plate; air-tightly fixing a detachable chamber and forming the interior of the chamber under an insulating gas atmosphere; tightly attaching the cylinder to the plate by a tight-attachment inducing member within the chamber under the insulating gas atmosphere to form a sealing structure; exhausting the chamber; disassembling the chamber from the plate; and sealing the tightly attached plate and the cylinder.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: October 8, 2013
    Assignee: LSIS Co., Ltd.
    Inventor: Young Myoung Yeon
  • Publication number: 20130214884
    Abstract: A relay includes: a plurality of fixed terminals arranged to have fixed contacts; and a movable contact member arranged to have a plurality of movable contacts that are correspondingly opposed to the respective fixed contacts. The relay further includes: a driving structure operated to move the movable contact member such that the respective movable contacts come into contact with the corresponding fixed contacts; a plurality of first vessels provided corresponding to the respective fixed terminals and arranged to have insulating property; a second vessel joined with the plurality of first vessels; and an air-tight space formed by the plurality of fixed terminals, the plurality of first vessels and the second vessel to allow the movable contact member and the respective fixed contacts to be placed therein.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 22, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Shinsuke Ito, Youichi Hattori, Norihiko Nadanami, Ryuji Inoue, Takeshi Mitsuoka, Takio Kojima
  • Patent number: 8486718
    Abstract: A magnetic system for biosensors is switchable between attraction force and repulsion force near the sensor surface. The magnetic system includes a magnetic source and a sensor. The sensor corresponds with the magnetic field in a way that the magnetic source creates inhomogeneous magnetic field lines that results in a magnetic force towards the magnetic system and which subsequently or adjacently exerts a magnetic force directed away from the magnetic system with all magnetic forces generated at the same magnetic source.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: July 16, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Petrus Johannes Wilhelmus Van Lankvelt, Menno Willem Jose Prins
  • Publication number: 20130099880
    Abstract: An object of the present invention is to provide a contact switching device that does not require proficiency for brazing a metal component to a through-hole of a sealed container made of ceramic, and is excellent in impact resistance. For this, there is provided a contact switching device that drives a contact mechanical portion arranged inside a sealed space to switch contacts, based on excitation and degauss of an electromagnet portion arranged outside the sealed space. Particularly, a ceramic plate (131) holding a fixed contact terminal (133) of the contact mechanical portion, and a first metal component are bonded and integrated to form the sealed space, and an outer circumferential portion of a vent pipe (134) is brazed through a metal ring portion (172a) arranged along an opening edge portion of a through-hole (131b) provided in the ceramic plate (131).
    Type: Application
    Filed: March 14, 2011
    Publication date: April 25, 2013
    Inventors: Keisuke Yano, Ryuichi Hashimoto, Yasuo Hayashida, Shingo Mori
  • Patent number: 8327527
    Abstract: This invention relates to reed switches, and more particularly to micro-miniaturized reed switches and batch microfabrication techniques used to fabricate micro-miniaturized reed switches. The present invention can provide miniaturized reed switches with more consistent operating parameters, and that can be produced more efficiently than conventional reed switches. The present invention can also provide methods of making miniaturized reed switches using microfabrication techniques. The present invention can use lithographic-based fabrication to enable monolithic construction of a reed switch. Microlithography can repeatedly form micrometer dimensions with tight tolerances over large arrays of devices which, if the patterns are translated into materials appropriate for electromechanical devices, can provide for repeatable and consistent electromechanical operation.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: December 11, 2012
    Assignees: HT Microanalytical, Inc., Coto Technology, Inc.
    Inventor: Todd R Christenson
  • Publication number: 20120200376
    Abstract: The present invention relates to a vacuum interrupter in a vacuum circuit breaker. According to the present invention, there is provided an attraction member made of a ferromagnetic body for surrounding between the stationary electrode and movable electrode to attract a radial magnetic field generated in a radial direction between the stationary electrode and movable electrode by means of the attraction member, and through this a component of the radial magnetic field may be increased in an overall horizontal direction between the stationary electrode and movable electrode, and as a result the radial magnetic field may be further enhanced between both electrodes, thereby strengthening an arc driving force.
    Type: Application
    Filed: January 19, 2012
    Publication date: August 9, 2012
    Applicant: LSIS CO., LTD
    Inventor: Byung Chul KIM
  • Publication number: 20110156846
    Abstract: Disclosed is a high voltage relay having an enhanced air-tight structure, the relay including a molded case formed by molding a synthetic resin having an electric insulating property into a box shape having one open surface, an actuator accommodated in the lower molded case, and an arc extinguishing mechanism allowing insertion of a stationary electrode therein and installed on the actuator for covering the open surface of the molded case, the arc extinguishing mechanism including a gas discharge hole portion blocked when a thermosetting resin coated on the arc extinguishing mechanism for air-tightness is hardened.
    Type: Application
    Filed: October 13, 2010
    Publication date: June 30, 2011
    Inventor: Young Myoung Yeon
  • Publication number: 20110156845
    Abstract: A sealed cased magnetic switch includes: a first contact pressure spring having one end supported by the movable contactor and applying an elastic force to the movable contactor to provide a contact pressure in a direction in which the movable contactor is brought into contact with the fixed electrode; a spring seat member supporting the other end of the first contact pressure spring and fixedly installed on the driving shaft; and a second contact pressure spring having a diameter larger than that of the first contact pressure spring and applying an elastic force at an outer position in a radial direction compared with the first contact pressure spring to the movable contactor in a direction in which the movable contactor is brought into contact with the fixed electrode.
    Type: Application
    Filed: July 2, 2010
    Publication date: June 30, 2011
    Applicant: LS INDUSTRIAL SYSTEMS CO., LTD.
    Inventor: Young Hwan Eum
  • Patent number: 7924124
    Abstract: Electrical switching device, especially a high-frequency switching device, with at least one oblong electrical switching element, which is arranged with one contact end between two fixed-contact elements spaced a transverse distance from one another and can be moved by two adjustment elements forming a transverse movement drive transversely to a longitudinal direction optionally towards the one or the other fixed-contact element. The adjustment elements are disposed laterally alongside the switching element and can be moved transversely to and from the switching element. In order to improve the transverse movement drive for the switching element, the switching element-comprises magnetic material, wherein the adjustment elements are formed by magnets.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: April 12, 2011
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Markus Leipold, Helmut Hingrainer, Alexander Bayer
  • Patent number: 7911303
    Abstract: A circuit breaker includes a vacuum valve, an electromagnet including a first coil for driving an operating shaft of the vacuum valve toward an opening direction by electromagnetic repulsion, a movable core and a permanent magnet. Further, an operating mechanism is provided which excites the first coil to close the vacuum valve, holds the vacuum valve closed by an attractive force of the permanent magnet and excites the first coil in a direction reverse to an excitation direction in closing operation to open the vacuum valve. In the circuit breaker, together with the first coil, a second coil is disposed which is excited simultaneously with an electromagnetic repulsion coil for a quick opening operation by electromagnetic repulsion is provided in the electromagnet.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 22, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Ayumu Morita, Minoru Hosoda, Yoshihiko Matsuda, Masato Suzuki, Keiichi Miyashita, Shigetoshi Oouchi, Masaaki Saitou, Akihito Yano
  • Publication number: 20110032058
    Abstract: An electric switch for use on multiple-use operating elements in commercial vehicles has an operating part that performs a rotational movement around a limited angle and can be actuated directly by a solid body outside the switch, and having a support housing and an adjustment wheel having the operating part. In order to enable a safe usability in the dark, the operating part is constructed in an illuminated manner dependent on the operating position.
    Type: Application
    Filed: July 1, 2010
    Publication date: February 10, 2011
    Inventors: Stefan HOESS, Michael HETZER
  • 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: 20100066469
    Abstract: A domestic appliance for treating laundered articles including a container for receiving laundered articles, which can be introduced into the container via a loading opening that can be closed by a door, and a door contact switch that is actuated as a function of a door position in order to interrupt a treatment process of the laundered articles, wherein the door contact switch is arranged on a substrate, which supports electronic control devices of the domestic appliance.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 18, 2010
    Applicant: BSH BOSCH UND SIEMENS HAUSGERATE GMBH
    Inventors: Guido Sattler, Andreas Ziemann
  • Publication number: 20080258852
    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: Application
    Filed: April 18, 2007
    Publication date: October 23, 2008
    Applicant: KEY SAFETY SYSTEMS, INC.
    Inventors: Mark Pickhard, John Wineke, David Lea, Andrew Petraszak, Steve Topel, Tom Lenz
  • Patent number: 7417543
    Abstract: A method and system for monitoring the integrity of a container specifically adapted for the system and constructed with at least one door. A sensor is secured in the container for detecting proximity of the at least one door relative to another area of the container and for providing sensor data that may be communicated from the container relative to its integrity.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: August 26, 2008
    Assignee: CommerceGuard AB
    Inventors: Johan Bergman, Eric Sandberg, Martin Voigt
  • Patent number: 7321282
    Abstract: A MEM's reed switch array is provided having a first switch having a sensitivity causing the first switch to open or close due to a magnetic flux, and a second switch of lesser sensitivity than the first switch causing the second switch to open or close due to a magnetic flux. The first switch can be parallel to the second switch, or the first switch can be proximate to the second switch so that a center line of the first switch is coaxial to a center line of the second switch. Further, a security device for residential and/or commercial use is provided, having a magnet housing having a magnet, a switch housing having a MEM's reed switch array with a first switch and a second switch, and a gap between the magnet housing and the switch housing.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: January 22, 2008
    Assignee: Honeywell International, Inc.
    Inventors: Robert E. Lee, Kenneth G. Eskildsen, Kevin G. Piel
  • Patent number: 7238890
    Abstract: A PTFE stud for an ultrahigh-value resistor includes a first portion to be mounted on a substrate and a second portion attached to the first portion so as to not be in contact with the surface of the substrate. The first portion is formed of insulating material and the second portion has a mounting hole that penetrates the second portion so as to be parallel to the surface of the substrate. The mounting hole is adapted such that the lead of the ultrahigh-value resistor is inserted thereinto. The ultrahigh-value resistor can be mounted without soldering.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 3, 2007
    Assignee: Agilent Technologies, Inc.
    Inventors: Syunsuke Shiobara, Chikao Matsuda
  • Patent number: 7199688
    Abstract: A magnetically actuated apparatus, which enlarges, extends and makes continuous magnetic fields used by magnetically controlled devices, such as a magnetic reed switch for use in physical security monitoring systems is shown. Apparatus includes a sensor and a magnetic actuator for use with a movable closure member. The sensor is mounted into to a fixed support member that is arranged for displacement relative to a second movable support member. The sensor has a pair of contacts that are connectable to an electronic circuit. The contacts form a switch that is actuated by the magnetic actuator. The magnetic actuator comprises a unique elongated magnet with specific polarity or a plurality of aligned, alike permanent magnets that are mountable to the second support member.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: April 3, 2007
    Inventor: Mahlon William Edmonson, Jr.
  • Patent number: 7191509
    Abstract: The invention relates to a method for adjusting the switch-gap between the overlapping metal tongues of a reed switch contained in a glass envelope, in which a beam of radiation energy is directed through the envelope onto a localised area of at least one of the tongues for a specific period of time, thereby effecting thermally-induced bending of the tongue in question about the irradiated area, wherein a radiation source is used which delivers radiation energy having a wavelength in a range in which the radiation is absorbed by the glass envelope to a considerable extent, and wherein the beam of radiation energy is focussed and measured in such a manner that the proportion between the irradiated glass volume of the envelope and the irradiated metal area of at least one of the tongues that is obtained is such that the temperature of the glass undergoes a temperature increase of less than 100 Kelvin during the time required for heating the metal to the melting point.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: March 20, 2007
    Assignee: Kearney-National Netherlands Holding B.V.
    Inventor: Gerardus Judocus Cornelus Van Gastel
  • Patent number: 7119643
    Abstract: The heat-induced current that flows from the bushing on the outside into the electrostatic shield tube is recirculated to the conductive bushing by dividing the bushings into inside and outside insulating bushings in a concentric circle and a conductive bushing sandwiched by these insulating bushings with respect to the heat-induced current that flows as a result of the heat that has been transmitted from the coil bobbin to the electrostatic shield tube, and connecting the electrostatic shield tube and conductive bushing with a separate conductive member.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: October 10, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Yukoh Iwasaki
  • Patent number: 6972651
    Abstract: A switch operable under a predetermined condition includes a plurality of switch parts each including a pair of reed pieces and a connecting member of an electrically conductive non-magnetic material via which the plurality of switch parts are serially connected. The switch operates only under a condition where all of the plurality of switch parts are operated by external magnetic fields individually and simultaneously acting on the plurality of switch parts.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: December 6, 2005
    Assignee: Takamisawa Electric Co., LTD
    Inventors: Shigemitsu Aoki, Nobuyoshi Shimizu, Hirofumi Saso, Yoshio Okamoto, Chiaki Maeno, Noboru Fujii, Yasushi Saito
  • Patent number: 6842324
    Abstract: Apparatus and method for controlling movement of an object through a medium using a magnetic field by combining the magnetic field of a primary electromagnetic coil having a central axis with the magnetic fields of a plurality of secondary electromagnetic coils having axes generally parallel to the central axis of the primary coil and positioned within the primary coil to produce an operational magnetic field by which movement of the object in a medium is controlled outside of the primary coil.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: January 11, 2005
    Assignee: FSU Research Foundation, Inc.
    Inventor: Yehia M. Eyssa
  • Patent number: 6429758
    Abstract: The present invention is an RF electromechanical single pole single throw (SPST) switch providing a low loss path for RF signals in closed position and a high impedance path for RF signals in open position. The structure has two reed switches each having an actuator and two contacts with both reed switches electrically connected in parallel and mechanically attached such that one contact in each reed switch is grounded and the another contact connects to the actuators that are also connected together and to an RF input pin.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: August 6, 2002
    Assignee: Renaissance Electronics Corporation
    Inventors: Dean Emelo, Brian Alexander, Massimo M. Pellegrini
  • Patent number: 6340924
    Abstract: The present invention provides a circuit protection device that comprises at least one set of reed members having a pair of reed members, wherein each of the reed members is constituted by a magnetic material and disposed in such a way as to be opposed to the other of the reed members and has an end disposed in such a manner as to be apart by a predetermined gap from and contactable with an end of the other of said reed members, magnetic-field generating unit placed in vicinity of the reed members set and adapted to generate a holding magnetic field for maintaining a state, in which the end of the reed members are in contact with each other, after the ends of the reed members are attracted to each other and the contacts are closed and a contact gap reduction unit for reducing the gap to a gap corresponding to a pull-in of the magnetic field generated by said magnetic-field generating unit.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: January 22, 2002
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Nobuyoshi Shimizu, Koichi Kondoh, Chiaki Maeno
  • Patent number: 6329618
    Abstract: A shock sensor has a shock sensing magnetic mass that rides on the inside of a glass tube that is sealed about a reed switch. The reed switch has a first stop positioned so that the shock sensing magnetic mass when resting against the first stop does not cause the reeds of the reed switch to attract. A spring extends between the shock sensing magnetic mass and a second stop. Acceleration causes the sensing mass to accelerate toward the second stop. The motion of the magnetic sensing mass causes the switch reeds to attract and close the reed switch. The entire shock sensing mechanism is hermetically sealed within the glass capsule of the reed switch. The reed switch within the glass capsule detects movement of the shock sensing mass.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: December 11, 2001
    Assignee: Breed Automotive Technology, Inc.
    Inventors: Philip James, Anthony Howell
  • Patent number: 6104267
    Abstract: A surface mount electronic reed switch component (10) is provided having lead wires (12, 14) the outer ends of which are formed into associated loops (32, 34) that extend transversely to the seating plane (36) of the reed switch (10) to provide one or more stable surface mount feet (58) without undue bending stresses on the leads (12, 14) to thus avoid adversely affecting the switch gap (28) defined by the inner ends (22, 24) of the leads (12, 14).
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: August 15, 2000
    Assignee: Standex International Corp.
    Inventors: Edward R. Palmer, Colin Stratford
  • Patent number: 6075429
    Abstract: A single-pole relay switch capable of effective arc extinction irrespective of the current flowing directions in which the device is connected in a circuit. The switch has a housing and two sets of contacts located in the housing, each set being composed of a fixed contact and a movable contact. A contact carrier is provided to have first and second movable arms which extend commonly from a bridge and are provided respectively with the two movable contacts. An actuator applies a driving force to move the contact carrier between an ON-position of holding the movable contacts simultaneously in contact respectively with the fixed contacts, and an OFF-position of keeping the movable contacts at respective opening gaps from the fixed contacts. The housing includes a casing which is divided into first and second chambers respectively for receiving the contact sets, each of the first and second chambers being surrounded by a dielectric wall.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: June 13, 2000
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Riichi Uotome, Takehiko Toguchi, Ritsu Yamamoto, Masahiro Ito, Narutoshi Hoshino
  • Patent number: 6041489
    Abstract: A method for fabricating a reed relay which includes a magnetically actuated switch and a bobbin. The switch defines an exterior surface and includes two terminals, and the switch provides a relatively low electrical resistance path between the two terminals when closed and provides a relatively high electrical resistance path between the two terminals when open. The bobbin defines an interior surface and an exterior surface, and the bobbin is disposed around the switch so that the bobbin interior surface contacts substantially all of a predetermined portion of the switch exterior surface.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: March 28, 2000
    Assignee: C. P. Clare Corporation
    Inventor: Lucas Neven
  • Patent number: 6008708
    Abstract: A reed relay comprising a reed switch having a pair of leads and a magnetic coil assembly for driving the reed switch, the magnetic coil assembly being composed of a magnetic coil wound around a cylindrical bobbin having an insulating flange at each end of the cylindrical bobbin, a terminal insulator integrally continuous with each flange, and a plurality of terminal leads insulated from one another by each of the terminal insulators. One embodiment of the present invention is a cylindrical bobbin having an electric conductivity so as to act as an electrostatic shield for the reed switch inserted thereinto, and another embodiment of the present invention is a method for fabricating the magnetic coil assembly comprising a step of forming a cylindrical bobbin and the terminal leads in each side of the cylindrical bobbin by using a patterned sheet of metal, wherein the cylindrical bobbin is continuous with the ground terminal lead in each side.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: December 28, 1999
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Tomohisa Endoh, Tsutomu Motoyama
  • Patent number: 5963116
    Abstract: A reed relay includes a reed switch with contacts, and a pair of terminals connected to the contacts. A tubular electrostatic shield defines an axially extending central bore within which the reed relay is inserted. A coil assembly has a winding drum, and a coil provided on the winding drum. The winding drum defines an axially extending central bore within which the electrostatic shield is inserted with the reed switch. A first pair of leads extend oppositely to each other, and are connected to the electrostatic shield at the opposite ends of the coil assembly. A second pair of leads extend oppositely to each other, and are connected to the electrostatic shield at the opposite ends of the coil assembly. A third pair of leads extend oppositely to each other, and are connected to the coil at the opposite ends of the coil assembly. A fourth pair of leads extend oppositely to each other, and are connected to the terminal of the reed switch at the opposite ends of the coil assembly.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: October 5, 1999
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Tomohisa Endoh, Yukishige Noguchi, Yukihiro Takano, Hideto Harayama
  • Patent number: 5917392
    Abstract: The invention relates to a switching arrangement for connecting and/or separating two sections (7, 8) of an electrical line (3), said arrangement comprising a switching device (10) having contact elements (11, 12) which are connected to said two line sections (7, 8) as well as a plug device (15) having an actuation element (20) and plug contacts (18, 19).For providing a switching arrangement of particularly simple design for connecting and/or separating two sections of an electrical line, the present invention proposes that the contact elements (11, 12) be electrically connected to the actuation reeds of a reed contact (25) and the actuation element (20) be means magnetically influencing said reed contact which will open said reed contact (25) when the plug devide (15) is plugged in.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: June 29, 1999
    Assignee: Tektronix, Inc.
    Inventor: Wolfram Finfera
  • Patent number: 5917398
    Abstract: The invention relates to a reed contact unit (1) for electric switching functions, comprising a metallic contact blank (2) featuring a base (3) with at least one contact arm (5) configured integral with it, and comprising an electrically non-conducting frame part (7) accommodating fixedly the base (3) of the contact blank (2). To avoid deformations and damage to the contact arms (5) of the reed contact units (1) when used in bulk, at least one of the long sides (12) and the front end (9) of the contact arm (5) are surrounded by at least one frame shank (8) configured integral with the frame part (7), the front end (9) of the contact arms (5) being fixable releasably in the frame shank (8).
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: June 29, 1999
    Assignee: Eaton Corporation
    Inventors: Hans Peter Kunz, Stefan Markfort
  • Patent number: 5909163
    Abstract: A high voltage reed switch that opens and closes in response to a magnetic flux field. The switch comprises a pair of parallel partially overlapping flexible reed contacts hermetically sealed in a tubular envelope and extending through ends thereof to provide external contacts. The preferred switch also comprises at least one non-magnetic member or a plurality of magnets for generally counteracting the electrostatic attraction produced between the open reed contacts while high voltage is applied to the switch.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: June 1, 1999
    Assignee: Hermetic Switch, Inc.
    Inventor: William T. Posey
  • Patent number: 5892194
    Abstract: A sealed switch has a vessel defining therein a hermetically sealed space which receives a pair of fixed contacts and a movable contact bridging the fixed contact. The movable contact is movable between an ON-position of closing with the fixed contact and an OFF-position of separating from the fixed contacts. Hydrogen gas or hydrogen rich gas is filled in the sealed space in order to suppress arc development between the movable and fixed contacts. The plunger carries at its axial one end the movable contact and carrying at the other axial end an actuator which moves the plunger axially for movement of the movable contact from the OFF-position to the ON-position. An over-travel spring is provided to give a bias for moving the movable contact relative to the plunger in order to develop a contacting pressure between the movable and fixed contacts. The over-travel spring is supported to a spring holder secured to the plunger.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: April 6, 1999
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Riichi Uotome, Takaaki Chuzawa, Takehiko Toguchi, Toshiyuki Suzuki, Kiyoshi Goto, Ritsu Yamamoto, Masahiro Ito
  • Patent number: 5883556
    Abstract: A reed switch employs contact blades which have enhanced flexibility and performance, as a result of the selective removal of material from one or more of the blades without work hardening the remaining blade material. The blades are masked and acid etched in predetermined patterns to provide either a contact region, a hinge or fulcrum region, or one or more of both. The contact region of the blade optimizes the alignment and magnetic coupling of the switch while minimizing the electrical capacitance in the space between the blades when the switch is open. The hinge or fulcrum region improves blade compliance and flexibility under an applied load. Various geometries of the contact region can be employed to improve the performance and longevity of the switch.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: March 16, 1999
    Assignee: C.P. Clare Corporation
    Inventor: Bradley E. Shutes
  • Patent number: 5861787
    Abstract: A relay for high frequency instruments and a reverse power protection circuit for high frequency instruments are described herein. The relay is inexpensive to construct, permits good impedance matching up to approximately 5 GHz, and can be easily mounted on a coplanar waveguide transmission line. The circuit can open the relay in response to a reverse power condition in as little as 8 microseconds and provides both good grounding and functions reliably up to 4 GHz.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: January 19, 1999
    Inventor: Roger R. Graeber
  • Patent number: 5847632
    Abstract: The reeds of a reed switch include convex portions embedded in a glass tube and extending into a cavity defined in the glass tube. The fulcrums about which the reeds are spring-operated are regulated by the positions of the convex portions, rather than by the interface position with the glass tube. As such, a reed switch having desired characteristics can be reliably fabricated regardless of manufacturing process variations.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: December 8, 1998
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Toshihiro Oshima