With Casing Or Enclosure Patents (Class 335/278)
  • Patent number: 9117584
    Abstract: A solenoid device is provided which is equipped with a first and a second magnetic coil and a first, a second, and a third magnetic circuit, and designed so that when the second magnetic coil is deenergized while the first magnetic coil is kept energized following a dual-energized mode in which the first and second magnetic coils are energized, the magnetic flux ? flowing through the second magnetic circuit disappears. The magnetic flux ? of the first magnetic coil, thus, continues to flow though the first and third magnetic circuits, thereby creating a magnetic force to keep a first plunger and a third plunger attracted. This enables the plungers to be attracted independently from each other and results in a decrease in power consumption of the magnetic coils when the plurality of plungers are attracted simultaneously.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: August 25, 2015
    Assignees: NIPPON SOKEN, INC., ANDEN CO., LTD
    Inventors: Ken Tanaka, Osamu Daitoku, Tomoaki Tanaka
  • Patent number: 9115516
    Abstract: In a camera structure for an electromagnetic lock, the electromagnetic lock based on aluminum extrusion framing for development of one assembly is divided into an electromagnetic lock and a camera structure. The electromagnetic lock includes a frame, a wire harness space, an electromagnetic core, a plate body, an electromagnetic cover and a wire harness cover; the camera structure comprises a U-shaped frame, a plate body, a camera cover and side blocks.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 25, 2015
    Inventors: Shih-Ming Hwang, Liang-Lun Hwang
  • Patent number: 8941454
    Abstract: A proportionally acting solenoid with a plastics encapsulation having a fastening flange which is integrally formed thereon and contains shaped elements which permit installation of the solenoid onto the housing by axial pressing in, rotation and rotary latching, the shaped elements, in interaction with metallic springs and shaped elements of the housing, holding the solenoid on a housing axially and against rotation, and the springs being tensioned upon rotation of the housing during the installation, and the seal which seals the radial gap between the solenoid and the housing being coordinated, by means of the configuration thereof, with a small axial installation force.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: January 27, 2015
    Assignee: Thomas Magnete GmbH
    Inventors: Jochen Grunschlag, Michael Stockschlader
  • Patent number: 8803645
    Abstract: A proportionally acting solenoid with a plastics encapsulation having a fastening flange which is integrally formed thereon and contains shaped elements which permit installation of the solenoid onto the housing by axial pressing in, rotation and rotary latching, the shaped elements, in interaction with metallic springs and shaped elements of the housing, holding the solenoid on a housing axially and against rotation, and the springs being tensioned upon rotation of the housing during the installation, and the seal which seals the radial gap between the solenoid and the housing being coordinated, by means of the configuration thereof, with a small axial installation force.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: August 12, 2014
    Assignee: Thomas Magnete GmbH
    Inventors: Jochen Grunschlag, Michael Stockschlader
  • Patent number: 8754732
    Abstract: The invention refers to a solenoid, comprising a casing. The casing houses a coil body. The coil body supports windings of electrically conducting wire. The coil body surrounds an armature housing containing an armature. The casing wall of the casing has a recess in the area of the armature housing. Between the coil body and the armature housing a tube separated from the casing is arranged. The tube is joined to the inside of the casing wall facing the coil body without roundings.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 17, 2014
    Assignee: SVM Schultz Verwaltungs-GmbH & Co. KG
    Inventor: Claus-Peter Hasel
  • Publication number: 20140111295
    Abstract: The invention relates to a solenoid housing fabricated by a method which allows a manufacturer to produce a high performing product while minimizing manufacturing complexity and time. The instant invention uses cold-forging techniques to reduce the need for fine machining processes.
    Type: Application
    Filed: January 2, 2014
    Publication date: April 24, 2014
    Applicant: Indimet Inc.
    Inventor: Shreyas R. MEHTA
  • Patent number: 8653923
    Abstract: The invention relates to a solenoid switch for starting devices for starting internal combustion engines, comprising a joint (100) between assembled parts of the solenoid switch. The invention is characterized in that the joint is formed in such a way that a direct penetration of spray water is prevented and pressure compensation is enabled.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 18, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Houman Ramezanian, Ingo Richter, Henning Stoecklein, Michael Froehlich-Schlapp
  • Patent number: 8648680
    Abstract: An electromagnet having a pole tube, and having a coil that encompasses the pole tube and is mounted so as to be displaceable along a longitudinal axis of the pole tube, a first end face of the coil or of the housing thereof bearing on a first counter-bearing disposed at a first end portion of the pole tube, and an elastic element, which is supported on a second counter-bearing and biases the coil and/or the housing thereof against the first counter-bearing, is provided between a second end face of the coil or the housing thereof and the second counter-bearing disposed at a second end portion of the pole tube.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: February 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Bernhard Adler, Steffen Loritz, Matthias Stitz, Torsten Witte, Ralf Bosch
  • Patent number: 8641010
    Abstract: The invention provides a valve comprising a tube for guiding movement of a plunger, a solenoid which can be arranged about the tube, and a yoke which can be positioned in an operational position relative to the tube and relative to the solenoid so that it provides a magnetic path between the solenoid and portions of the tube. The yoke engages the tube and thereby prevents removal of the solenoid from tube. The invention thereby provides a very simple valve design with a low amount of components. The invention further provides a method of making a valve including fixing a solenoid to a tube by use of a yoke which engages the tube.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: February 4, 2014
    Assignee: Danfoss A/S
    Inventor: Ole Holst Christensen
  • Patent number: 8587397
    Abstract: The invention refers to a solenoid, comprising a coil and a connection region for a current source. At least one conducting pin is arranged at the connection region. The pin is connected by a welding joint with the coil connector. The coil connector is connected to the coil. The pin can be positioned by a positioning piece slid on the pin.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: November 19, 2013
    Assignee: SVM Schultz Verwaltungs-GmbH & Co.
    Inventor: Claus-Peter Hasel
  • Publication number: 20130234816
    Abstract: A proportionally acting solenoid with a plastics encapsulation having a fastening flange which is integrally formed thereon and contains shaped elements which permit installation of the solenoid onto the housing by axial pressing in, rotation and rotary latching, the shaped elements, in interaction with metallic springs and shaped elements of the housing, holding the solenoid on a housing axially and against rotation, and the springs being tensioned upon rotation of the housing during the installation, and the seal which seals the radial gap between the solenoid and the housing being coordinated, by means of the configuration thereof, with a small axial installation force.
    Type: Application
    Filed: February 20, 2013
    Publication date: September 12, 2013
    Applicant: Thomas Magnete GmbH
    Inventors: Jochen Grunschlag, Michael Stockschlader
  • Patent number: 8502629
    Abstract: The present invention relates to an electromagnetic contactor including a stationary armature which includes a housing enclosure for a coil for generating a magnetic field, the enclosure having an opening, a closing cover for the opening of the enclosure, the closing cover having an aperture, and a movable armature passing through the aperture of the closing cover for the opening of the enclosure, further including a guide ring made from non-magnetic material which is arranged in the aperture of the closing cover so as to have, between a first wall in contact with the wall of the aperture of the cover and a second wall facing towards the movable armature, a thickness corresponding to the minimal radial gap between the movable armature and the stationary armature.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: August 6, 2013
    Assignee: ABB France
    Inventor: Jacques Dumoux
  • Patent number: 8477002
    Abstract: An electromagnetic hydraulic valve, having a solenoid (1) with a coil carrier (3), which receives at least one coil (4) in a completely encapsulated manner in an injection-molded encapsulation (7) and carries at least one terminal, wherein the terminal is formed of individual segments (10, 11) which are inserted into radially extending through openings (8, 9) that are formed in the coil carrier (3) and in the insert molding (7) adjacent to the at least one coil (4).
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 2, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jens Hoppe, Stefan Konias, Yi Wang
  • Patent number: 8446240
    Abstract: A low cost, sealed contactor comprises a hermetically sealed housing with a flat header having internal components for changing the state of said contactor. Terminals are electrically connected to the internal components for connection to internal circuitry and applying an electrical signal to control the state of the contactor. A solenoid-driven plunger with a hollow shaft is included. Power-reducing electronics located within the hermetically sealed housing are also included. Two contact springs are also included to improve electrical performance. O-rings are added to help seal the contactor and keep it hermetically sealed.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: May 21, 2013
    Assignee: Gigavac LLC
    Inventors: Brent J. Swartzentruber, Mike Molyneux, Daniel C. Sullivan
  • Publication number: 20130113583
    Abstract: A solenoid actuator includes a stator assembly with a stator core of formed powder metal received in a stator housing. A ferromagnetic protective sleeve is in contact with and covers a majority of an inner end face and a cylindrical wall of the stator core, while a flux ring is in contact with and covers an outer end face of the stator core. An armature assembly includes an armature attached to a stem that is movable in an air gap relative to the ferromagnetic protective sleeve. A spring is operably positioned in the ferromagnetic protective sleeve but electrically isolated from the stator housing. The stator core is encapsulated to protect against erosion and fragmentation. A magnetic flux line around a solenoid coil passes through the stator core, the ferromagnetic protective sleeve, the armature, the flux ring and back to the stator core.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 9, 2013
    Applicant: CATERPILLAR, INC.
    Inventors: Jayaraman K. Venkataraghavan, Saboor Sheikh, Daniel Richard Ibrahim, Michael C. Long, Nadeem N. Bunni
  • Patent number: 8421566
    Abstract: A linear solenoid includes a coil assembly having a coil, and a cup-shaped yoke arranged at an outer peripheral side of the coil. The yoke is provided with a recess portion that is opened at least at a position in a circumferential direction of the yoke and extends in an axial direction of the yoke. The coil assembly includes a connector portion that has a terminal connected to an exterior and is exposed from the recess portion to an exterior of the yoke, and a secondary molding portion made of a secondary molding resin in which the coil is insert-molded. Furthermore, the secondary molding portion includes a cover portion that is arranged to cover the recess portion of the yoke from an outer peripheral side of the recess portion. Thus, the cover portion can restrict foreign-material mixed oil from being introduced into the yoke.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 16, 2013
    Assignee: DENSO CORPORATION
    Inventors: Kazuhiro Sasao, Akinori Hirano
  • Patent number: 8410879
    Abstract: The invention refers to a solenoid with a magnet body connected with a tube pipe, wherein means for fastening the magnet body to the tube pipe are provided, and the means have at least one electrically conductive element, which is in contact, on the one hand, with the tube pipe, on the other hand, with the magnet body, for electric connection of tube pipe and magnet body.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 2, 2013
    Assignee: SVM Schultz Verwaltungs-GmbH & Co. KG
    Inventor: Hans-Kersten J. Lesk
  • Publication number: 20130068199
    Abstract: A solenoid that includes a housing having an outer surface and an inner surface, the inner surface defining a bore through the housing and the outer surface including a flange extending therefrom. A gland nut having a threaded outer surface and an inner surface surrounds the outer surface of the housing, is rotatable relative to the housing, and abuts the flange.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 21, 2013
    Applicant: CHRYSLER GROUP LLC.
    Inventors: Mark S. Cerny, Christopher R. Glaspie
  • Patent number: 8400243
    Abstract: There is an electromagnetic switch for a starter includes a first and second electromagnet and a frame and a cover. The first and second electromagnets are set alongside in the frame. The first and second electromagnets are configured to change a position with respect to the cover by rotating about the axis with respect to the frame.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 19, 2013
    Assignee: Denso Corporation
    Inventors: Tarou Okada, Mitsuhiro Murata, Takahisa Inagaki, Masami Niimi, Kiyokazu Haruno
  • Patent number: 8395466
    Abstract: A bionic telescopic matrix unit is disclosed, which is composed of a slide shaft (6), a metal guide pipe (7), an elastic telescopic shell (2) and an electromagnetic coil (3). In the elastic telescopic shell (2), the slide shaft (6) made of a permanent magnet extends into the metal guide pipe (7) via the front end of said pipe (7) and comes into sliding contact with the inner tube wall of the metal guide pipe (7). The rear end of the metal guide pipe (7) and the front end of the slide shaft (6) protrude out through the front and back openings respectively of said elastic telescopic shell (2), said front and back openings of said elastic telescopic shell (2) being fixedly connected to the outer peripheral wall of the metal guide pipe (7) and to the slide shaft (6) respectively, thus connecting the metal guide pipe (7) with the slide shaft (6).
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: March 12, 2013
    Inventor: Dezheng Zhao
  • Patent number: 8382062
    Abstract: The invention provides an electromagnetic actuator for moving a closure member of a valve. The actuator contains a solenoid, a yoke and a wire spring for fixing a guide tube, in which the closure member is movable, to the solenoid. The spring is formed so that it further fixes the yoke to the solenoid. Accordingly, the number of components is reduced, and detaching of the yoke may easily be facilitated.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: February 26, 2013
    Assignee: Danfoss A/S
    Inventor: Ole Holst Christensen
  • Patent number: 8350652
    Abstract: An electromagnetic actuating unit for a hydraulic directional control valve and a method for the assembly thereof. The actuating unit has a coil for generating a magnetic field, a yoke unit with a yoke and a yoke plate, and a pole core unit with a pole core and a housing for conducting a magnetic flux, and an armature unit which is arranged in the magnetic field of the coil and has an armature and a pressure pin as an actuator. The armature unit can be displaced in the direction of the longitudinal axis thereof in a first bearing point in the yoke unit and in a second bearing point in the pole core unit. At least one of the hearing points can be displaced in the radial direction during assembly of the actuating unit and can be fixed after a coaxial orientation of both bearing points.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 8, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jens Hoppe, Stefan Konias
  • Publication number: 20120299673
    Abstract: This invention relates to a solenoid housing and to a method for providing a solenoid housing having the base, wall, center pole, and flange integrally connected as a single piece. The instant invention provides for mounting protrusions and window for electrical leads as an integral part of the housing and manufacturing process.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 29, 2012
    Applicant: Indimet Inc.
    Inventor: Shreyas R. MEHTA
  • Patent number: 8264313
    Abstract: A guide of a coil device has a tongue portion, which is formed by resin integrally with the guide at a location radially outward of a slit of a yoke and axially extends toward an opening part of the yoke such that a distal end part of the tongue portion is resiliently bendable while exerting a resilient force. The tongue portion is resiliently engaged with a flange portion of a stator core upon filling of the coil device to the stator core.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 11, 2012
    Assignee: Denso Corporation
    Inventors: Kazuhiro Sasao, Akinori Hirano
  • Patent number: 8264312
    Abstract: A linear solenoid includes a shaft to reciprocate in an axis direction, a movable member fixed to the shaft, a front stator, a rear stator, a coil, a front housing, and a rear housing. The front housing is made of metal, and covers the front stator and the coil in the axis direction. The rear housing is made of metal, and is connected to the front housing so as to define a space to accommodate the movable member, the front stator, the rear stator and the coil. The rear housing covers the rear stator and the coil in the axis direction.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 11, 2012
    Assignee: Denso Corporation
    Inventors: Yasuhiro Hamaoka, Yoshiyuki Murao
  • Patent number: 8258905
    Abstract: A solenoid unit for a solenoid valve, including a magnet coil and a ferromagnetic circuit which surrounds the magnet coil and comprises a stationary magnet housing, a movable magnet armature and, if required, an armature antipole, the magnet housing being assembled of a cover, a shell and a bottom in the form of multiplayer transformer sheet metal parts.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: September 4, 2012
    Assignee: Buerkert Werke GmbH
    Inventors: Christian Ellwein, Olaf Beyer, Martin Doerr
  • Patent number: 8248195
    Abstract: A flat electromagnetic actuator includes a solenoid, a shaft at the center thereof, first and second bearings, a projecting supporting part, a movable core having an annular projection, a cylindrical yoke, a coil bobbin, a coil and a cylindrical housing whose top is closed, wherein an axial dimension thereof is shorter than a radial dimension thereof, and wherein the second bearing, the projecting supporting part, the movable core, the annular projection, the cylindrical yoke, the coil bobbin, and the housing are disposed on a same surface perpendicular to a displacement direction of the shaft, and continuously provided in the radial direction.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: August 21, 2012
    Assignee: Keihin Corporation
    Inventors: Shigeto Ryuen, Kenji Suda
  • Publication number: 20120154079
    Abstract: A linear solenoid includes a coil assembly having a coil, and a cup-shaped yoke arranged at an outer peripheral side of the coil. The yoke is provided with a recess portion that is opened at least at a position in a circumferential direction of the yoke and extends in an axial direction of the yoke. The coil assembly includes a connector portion that has a terminal connected to an exterior and is exposed from the recess portion to an exterior of the yoke, and a secondary molding portion made of a secondary molding resin in which the coil is insert-molded. Furthermore, the secondary molding portion includes a cover portion that is arranged to cover the recess portion of the yoke from an outer peripheral side of the recess portion. Thus, the cover portion can restrict foreign-material mixed oil from being introduced into the yoke.
    Type: Application
    Filed: November 23, 2011
    Publication date: June 21, 2012
    Applicant: DENSO CORPORATION
    Inventors: Kazuhiro Sasao, Akinori Hirano
  • Publication number: 20120154080
    Abstract: The invention refers to a solenoid, comprising a casing. The casing houses a coil body. The coil body supports windings of electrically conducting wire. The coil body surrounds an armature housing containing an armature. The casing wall of the casing has a recess in the area of the armature housing. Between the coil body and the armature housing a tube separated from the casing is arranged. The tube is joined to the inside of the casing wall facing the coil body without roundings.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 21, 2012
    Applicant: SVM SCHULTZ VERWALTUNGS-GMBH & CO.KG
    Inventor: Claus-Peter Hasel
  • Patent number: 8136790
    Abstract: An electromagnetic actuator for a hydraulic directional control valve is provided. The electromagnetic actuator is used for adjusting a hydraulic directional control valve, for example, for the variable adjustment of the control times of an internal combustion engine. The electromagnetic actuator includes a housing (08) with which the electromagnetic actuator is mounted opposite the hydraulic directional control valve. The electromagnetic actuator further includes a coil (01) that is arranged in a coil body (03). The electromagnetic field that can be generated with the coil (01) acts on an armature (09) that is arranged in the electromagnetic actuator so that it can move axially. In order to prevent that the hydraulic medium of the hydraulic directional control valve leaks from reaching the electromagnetic actuator, the actuator includes a seal (13; 24) between the coil body (03) and the housing (08). The coil body has a holder (26, 28) for holding the seal (24).
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: March 20, 2012
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Jens Hoppe, Markus Kinscher
  • Patent number: 8134439
    Abstract: A solenoid, in particular for switching pressure controllers or pressure valves, including an armature movable in an armature space, and a coil which can be impinged by current. When the coil is impinged by current, a magnetic field is generated serving for moving the armature, and the armature space can be filled with oil. For de-airing the armature space at least one de-airing channel is provided. In the de-airing channel at least one backflow-preventing element is provided which is permeable in the direction of de-airing.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: March 13, 2012
    Assignee: Dipl-Ing. Wolfgang E. Schultz
    Inventors: Georg J. Scherer, Helmut J. Mang
  • Publication number: 20110248805
    Abstract: A linear solenoid includes a shaft to reciprocate in an axis direction, a movable member fixed to the shaft, a front stator, a rear stator, a coil, a front housing, and a rear housing. The front housing is made of metal, and covers the front stator and the coil in the axis direction. The rear housing is made of metal, and is connected to the front housing so as to define a space to accommodate the movable member, the front stator, the rear stator and the coil. The rear housing covers the rear stator and the coil in the axis direction.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: DENSO CORPORATION
    Inventors: Yasuhiro HAMAOKA, Yoshiyuki MURAO
  • Patent number: 7978035
    Abstract: A magnet switch which may be employed in automotive engine starters is provided. The magnet switch includes a stationary magnetic core made up of a disc assembly and a core body. The disc assembly is made of a stack of annular plate members superposed on each other. Each of the plate members has an opening through which a terminal lead of a magnetic coil extends. The core body has a boss with an edge which is plastically deformed outwardly in the radius direction thereof or staked to create an elastic nip which retains the stack of the plate members firmly on the core body. This structure ensures the joint between the disc assembly and the core body to withstand mechanical impact exerted on the magnetic core and stability in operation of the magnet switch without increasing a total production cost of the magnetic switch.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: July 12, 2011
    Assignee: Denso Corporation
    Inventors: Shinji Usami, Tomohiro Teramachi
  • Patent number: 7948338
    Abstract: An electromagnetic switch is provided which is equipped with a built-in electronic control circuit working to control energization of an exciting coil. The electronic control circuit is disposed within a chamber defined by a magnetic plate to be separate from a contact chamber. In other words, the electronic control circuit is disposed between the magnetic plate and the exciting coil, thereby avoiding the adhesion of conductive dusts, as arising from the wear of contacts, to the surface of the electronic control circuit. This results in decreases in electric insulation and short-circuit of the electronic control circuit and also eliminates the need for additional special parts to electrically insulate and shield the electronic control circuit, thus permitting the electromagnetic switch to be reduced in size and produced at a decreased const.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: May 24, 2011
    Assignee: Denso Corporation
    Inventors: Masami Niimi, Yoshiaki Suzuki
  • Patent number: 7944333
    Abstract: A low cost, sealed contactor comprises a hermetically sealed housing with a flat header having internal components for changing the state of said contactor. Terminals are electrically connected to the internal components for connection to internal circuitry and applying an electrical signal to control the state of the contactor. A solenoid-driven plunger with a hollow shaft is included. Power-reducing electronics located within the hermetically sealed housing are also included. Two contact springs are also included to improve electrical performance. O-rings are added to help seal the contactor and keep it hermetically sealed.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: May 17, 2011
    Assignee: Gigavac LLC
    Inventors: Brent J. Swartzentruber, Mike Molyneux, Daniel C. Sullivan
  • Patent number: 7902947
    Abstract: Electromagnetic contactor comprising a winding (6) for generating a magnetic field, a magnetic circuit comprising a stationary portion (7) and a mobile portion (8), and an electronic board (11) comprising means of controlling the power supply to the winding (6), the electronic board (11) being arranged horizontally above the stationary portion (7) of the magnetic circuit. The mobile portion (8) passes through the electronic board (11) via an opening (12) in the board and slides into the winding, the contactor comprising an insulating casing including a rear portion intended to be fastened onto a support.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 8, 2011
    Assignee: ABB France
    Inventor: Bruno Lefebvre
  • Publication number: 20110025439
    Abstract: An actuating magnet is provided for a magnetic valve for a nonmagnetic pressure pipe, that is connected to at least one pole body, in which an armature is developed, and onto which at least two annular sleeves, having a ring lying between them, are slipped, in whose area a gap is situated that is developed between the armature and the pole body. Thereby, the actuating magnet may be developed in a simple manner by slipping annular sleeves and separating rings onto the pressure pipe.
    Type: Application
    Filed: January 29, 2009
    Publication date: February 3, 2011
    Inventors: Juergen Rettinger, Harald Hahn, Liebhart Zaiser, Lorenz Lippert
  • Patent number: 7871060
    Abstract: A solenoid actuator includes a generally cylindrical armature captured to a generally annular coil tube by means of interference geometry. A major portion of the coil tube has a first inside diameter and a second portion of the coil tube has a second, smaller inside diameter. A first portion of the armature has an outside diameter corresponding to the inside diameter of the first portion of the coil tube, and a second portion of the armature has an outside diameter corresponding to the inside diameter of the second portion of the coil tube. The armature is inserted within the coil tube such that the second portion of the armature is free to slide through the second end of the coil tube. A coil tube end closure, for example, a plug, is joined to the first portion of the coil tube. An O-ring provides a seal between the end closure and the tube. A wound electromagnetic coil surrounds the coil tube and can be selectively energized to displace the armature.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: January 18, 2011
    Assignee: Armour Magnetic Components, Inc.
    Inventor: John Armour
  • Publication number: 20100194124
    Abstract: A belt for electromagnetic sucker includes a first substantially U-shaped section, a second substantially U-shaped section, an electromagnetic sucker coupled to at least one of the first and second substantially U-shaped sections, at least one of the first and second substantially U-shaped sections being structured and arranged to be secure to a support, and a connector structured and arranged to secure the first and second substantially U-shaped sections to one another.
    Type: Application
    Filed: October 17, 2006
    Publication date: August 5, 2010
    Applicant: DIGIT
    Inventor: Jacob Benhammou
  • Patent number: 7768368
    Abstract: The invention relates to an electromagnetic actuating apparatus with an armature unit, which is guided axially in a housing and is capable of being moved by means of energizing a coil apparatus, contact plug means, which are held in an insulator unit, being associated with the coil apparatus, and an elongated ground contact of the contact plug means being electrically conductively connected to the housing, and the ground contact interacting electrically conductively at an engagement end which is opposite its free end with a yoke section, which is associated with the housing preferably at the front end, in such a way that, in a fitted state, a cutout formed in the engagement end in the ground contact engages over a projection of the yoke section and/or at least partially surrounds it.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 3, 2010
    Assignee: ETO Magnetic GmbH
    Inventors: David Muffler, Volker Knies, Ingo Bauerschmidt
  • Patent number: 7701314
    Abstract: A solenoid assembly (23) includes a coil assembly (65) having at least one coil winding (73) and an electronic circuit assembly (67), which is in electrical communication with the coil assembly (65). The electronic circuit assembly (67) has a printed circuit board (79) and at least one electronic component (81), which is surface mounted on the printed circuit board (79). A coating material (85) coats all of the plurality of external surfaces of the surface-mounted electronic component (81). A casing (87) over-molds an outer longitudinal surface (77) of the coil assembly (65) and all of a plurality of external surfaces of the electronic circuit assembly (67).
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: April 20, 2010
    Assignee: Eaton Corporation
    Inventors: Frederick R. Hazzard, Nathan H. French, Christopher M. Lodermeier
  • Patent number: 7696846
    Abstract: A drive solenoid, a yoke, an armature and at least one contact are mounted in a housing of an electromagnetic switching device. The drive solenoid, yoke and armature are inductively intercoupled, in such a way that when an inrush current is applied to the drive solenoid, the armature can be displaced into a pickup position, thus directly or indirectly actuating the contact. The yoke and/or armature contain(s) pulverulent magnetic material.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: April 13, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reinhard Maier, Erich Zerbian
  • Patent number: 7688169
    Abstract: A long-proportional-stroke force motor which outputs force proportional to the exciting current. The motor has a magnetic circuit wherein a non-magnetic spacer is positioned axially between a magnetic guide and a magnetic sleeve. An armature moves within a central opening defined by the guide, the spacer and the sleeve. An end portion of the guide, adjacent to the spacer, has a sectional profile through a stepped surface facing radially outward and the corners of the steps define a curve which satisfies the following expressions: ? Y ? X > 0 , ? ? 2 ? Y ? X 2 > 0 , where X is a coordinate on an X-axis corresponding to a central axis of the guide; wherein the armature is moved in a direction along the X-axis by application of exciting current to a coil surrounding the guide, spacer and sleeve; and Y is a coordinate on an axis orthogonal to the X-axis.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: March 30, 2010
    Assignee: Minebea Co., Ltd.
    Inventor: Shen Zhao
  • Patent number: 7667562
    Abstract: A new class of fundamental devices and methods for their manufacture and use. The bulk magnetic field replicators of the present invention require no precision machining or alignment to accurately reproduce magnetic fields of any complexity, nor extreme positional stability to maintain superconductivity. Such bulk devices may be formed of either low or high critical temperature superconductive materials, but are particularly adapted to formation from high critical temperature materials.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: February 23, 2010
    Inventor: Roy Weinstein
  • Patent number: 7661653
    Abstract: An electromagnetic actuator includes a coil, which is formed in an annular shape, a plunger, and a stator, which receives the coil inside the stator and forms a magnetic circuit along inner and outer circumferences of the coil through the plunger. The stator includes first and second stators. The first stator includes a magnetic attraction portion that attracts the plunger in an axial direction of the plunger by magnetic force generated by the coil, and a first yoke portion that covers the outer circumference of the coil. The second stator includes a radial direction magnetism delivery-receipt portion that delivers magnetism in a radial direction of the plunger to and receives magnetism in the radial direction from the plunger, and a second yoke portion that covers the outer circumference of the coil. The first yoke portion and the second yoke portion overlap in the axial direction and are magnetically joined.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: February 16, 2010
    Assignee: Denso Corporation
    Inventor: Jirou Kondoh
  • Publication number: 20100025606
    Abstract: The invention relates to an electromagnetic actuation unit (2) of a hydraulic valve (1), with a housing (14), a closing body (4b) and a sealing element (6), the closing body (4b) being plugged into an insertion opening (14a) of the housing (14), the sealing element (6) bearing against the closing body (4b) and the housing (14) and protecting the interior of the actuation unit against the ingress of media
    Type: Application
    Filed: August 22, 2007
    Publication date: February 4, 2010
    Applicant: SCHAEFFLER KG
    Inventors: Jens Hoppe, Stefan Konias, Christoph Ross
  • Patent number: 7568566
    Abstract: A magnetic fastening system for connecting a first member against a second member. The system includes a first flexible magnet longitudinally associated with at least a portion of an edge of the first member and a second flexible magnet longitudinally associated with at least a portion of an edge of the second member. The first and second flexible magnets are aligned to attract one another as the first and second members are moved into their connected position to then pull the first and second members into connecting contact.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: August 4, 2009
    Inventor: Carlo D'Ambrosio
  • Patent number: 7554429
    Abstract: A sealing member which seals a sealed space where a movable core of an electromagnetic actuator is arranged, includes: an inner ring portion and an outer ring portion which are respectively arranged inside and outside in the radial direction, come into contact with the upper surface of a flange of a fixed core and the lower surface of a coil assembly, and are compressed therebetween; and a thin connection portion integrally connecting the inner and outer ring portions. Therefore, the inner and outer ring portions are compressed and escape toward the upper and lower surfaces of the thin connection portion, whereby the axial thickness of the sealing member can be reduced in an assembled state while securing the sealability of the sealing member.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: June 30, 2009
    Assignee: Keihin Corporation
    Inventor: Hirozumi Kon
  • Patent number: 7545248
    Abstract: A magnet switch which may be employed in automotive engine starters is provided. The magnet switch includes a metallic terminal which extends through a hole formed in a switch cover to have one of ends thereof protruding outside the cover. The other end of the terminal is connected to an exciting coil to energize it to establish an electric connection between contacts. The magnet switch also includes a cylindrical seal and a stopper. The seal is fit on the end of the terminal to hermetically seal a clearance between the hole and the terminal. The stopper provided on the terminal works to stop the seal from moving to the other end of the terminal, thereby ensuring the stability of installation and sealing performance of the seal in the magnet switch.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: June 9, 2009
    Assignee: Denso Corporation
    Inventors: Tomoya Imanishi, Youichi Hasegawa
  • Publication number: 20090139491
    Abstract: A solenoid assembly is disclosed. The solenoid assembly has a housing having a cavity disposed therein. The solenoid assembly also has a unitary stator having a plurality of separated portions. The separated portions are held together by at least one lip located on an outer periphery of the stator. The stator is sized to fit within the cavity disposed in the housing.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 4, 2009
    Inventors: Mandar A. Joshi, Harish Krishnaswamy, Dana R. Coldren, Nadeem N. Bunni