Freely Movable Within Coil Or Magnetic Field Between Poles Patents (Class 335/81)
  • Patent number: 9263207
    Abstract: A switch device includes a switch operation unit to be mechanically operated so as to be in on or off state; a detecting unit configured to detect whether the switch operation unit is in the on or off state; a first mechanism to be configured to close electrical contacts of at least one circuit when the switch operation unit is operated to be in the on state; and a second mechanism configured to maintain the electrical contacts in an closed state and switch the electrical contacts to an open state in response to electrical signals indicating off, on, and, off to be received sequentially while the switch operation unit is in the off state.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: February 16, 2016
    Assignee: Ricoh Company, Limited
    Inventor: Atsuki Iwata
  • Patent number: 9183976
    Abstract: A standard solenoid body and coils are combined with a non-magnetic armature tube containing a permanent magnet, preferably neodymium. The magnet is located in one of three positions within the armature. When biased toward the stop end of the solenoid, it may be configured to act as a push solenoid. When biased toward the collar end of the solenoid, it may be configured to act as a pull solenoid. In either case, no spring is required to return the armature to its de-energized position. Positioning the magnet in the middle of the armature defines a dual-latching solenoid requiring no power to hold it in a given state. A positive coil pulse moves the armature toward the stop end, whereas a negative coil pulse moves the armature toward the collar end. The armature will remain at the end to which it was directed until another pulse of opposite polarity comes along.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 10, 2015
    Assignee: Hanchett Entry Systems, Inc.
    Inventors: Leland J. Hanchett, Jr., Dominik Scheffler
  • Publication number: 20130229245
    Abstract: A relay has a driving device that includes a magnet portion, two electromagnets, a yoke portion fixed to the above elements, and a rocking armature. The magnet portion includes a ferrite permanent magnet polarized in a direction perpendicular to the yoke portion and a bearing surface facing way from the yoke portion. Each electromagnet includes an iron core fixed to the yoke portion and a coil wound thereon. The two iron cores are arranged at opposite sides of the magnet portion. The rocking armature includes two arms connected to each other with an included angle formed therebetween and a convex joint of the two arms. The convex joint abuts against the bearing surface and the rocking armature pivots about the convex joint between a first position and a second position in which the rocking armature contacts a respective one of the iron cores.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: JOHNSON ELECTRIC S.A.
    Inventors: Yue LI, Bao Ting LIU, Jin Yun GAN, Chui You ZHOU, Yong WANG, Xiao Ning ZHU
  • Patent number: 8179217
    Abstract: A polar electromagnet device has a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil, and a movable iron core attached to a lower end of the drive shaft on the axis center. The drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil. A permanent magnet is integrally arranged at the movable iron core on the same axis center.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 15, 2012
    Assignee: OMRON Corporation
    Inventors: Kensuke Kawaguchi, Kazuchika Hiroki
  • Patent number: 8174343
    Abstract: A relay comprises a movable body placed in a cavity which is formed on a substrate and surrounded by a spacer layer and sealed by a cover layer. The movable body comprises a first magnet which is permanently magnetized and has at least a first end. A nearby switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first magnet and exerts a magnetic torque on the first magnet to force the first magnet and said movable body to rotate and close an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet and said movable body to rotate in an opposite direction and opens the electrical conduction path at the first end.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 8, 2012
    Assignee: Magvention (Suzhou) Ltd.
    Inventor: Jun Shen
  • Patent number: 8143978
    Abstract: An electromechanical relay employing a movable first magnet and a nearby switching electromagnet is disclosed. The movable first magnet is permanently magnetized with a magnetic moment and has at least a first end. The switching electromagnet, when energized, produces a switching magnetic field which is primarily perpendicular to the magnetization direction of the first movable magnet and exerts a magnetic torque on the first magnet to force the first magnet to rotate and closes an electrical conduction path at the first end. Changing the direction of the electrical current in the switching electromagnet changes the direction of the switching magnetic field and thus the direction of the magnetic torque on the first magnet, and causes the first magnet to rotate in an opposite direction and opens the electrical conduction path at the first end. Multiple magnetic layers can be arranged to form closed magnetic circuits to facilitate switching and maintaining switched states.
    Type: Grant
    Filed: February 20, 2010
    Date of Patent: March 27, 2012
    Assignee: Magvention (Suzhou), Ltd.
    Inventor: Jun Shen
  • Patent number: 7679476
    Abstract: A polarized electromagnetic relay including an electromagnet assembly, a contact section insulated from the electromagnet assembly, and a force transfer member disposed between the electromagnetic assembly and the contact section. The electromagnet assembly includes an electromagnet, an armature driven by the electromagnet, and a permanent magnet carried on the armature. The armature includes first and second electrically conductive plate elements holding the permanent magnet therebetween in a direction of magnetization of the permanent magnet and disposed to orient the direction of magnetization in parallel with the center axis of the coil. The armature is arranged linearly movably in a direction parallel with the center axis in a state where a part of the first electrically conductive plate element is inserted into a space between the outer peripheral region of the iron core head portion and the distal end region of the yoke major portion.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 16, 2010
    Assignee: Fujitsu Componenet Limited
    Inventors: Kazuo Kubono, Shinichi Sato
  • Publication number: 20090322453
    Abstract: A polar electromagnet device has a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil, and a movable iron core attached to a lower end of the drive shaft on the axis center. The drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil. A permanent magnet is integrally arranged at the movable iron core on the same axis center.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 31, 2009
    Applicant: OMRON CORPORATION
    Inventors: Kensuke Kawaguchi, Kazuchika Hiroki
  • Patent number: 7633363
    Abstract: A forcibly guided relay is disclosed, with a housing, whose height is smaller than its width and whose width is smaller than its length. With this, the relay comprises an electromagnetic drive filling the length or the width of the relay, with a clapper-type contactor which comprises a drive arm which extends in the direction of the core and at its free end cooperates with a drive cam; several contact pairs, which are in each case formed by a contact spring and a fixed or spring-like counter-contact said contact springs extending in the direction of the core, and with the drive ends being in a forcibly guided engagement with the drive cam.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: December 15, 2009
    Assignee: Elesta Relays GmbH
    Inventor: Werner Fausch
  • Patent number: 6591202
    Abstract: An apparatus and method that tests an NMR system, including MRI scanners, by taking H-B measurements for the apparatus at any stage during the manufacture thereof, to thereby detect any defects of the NMR system at any point during the manufacture thereof.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 8, 2003
    Assignee: Fonar Corporation
    Inventors: Joseph F. Rimkunas, William Wahl, Gordon Danby
  • Patent number: 6419011
    Abstract: An interrupted annular solenoid activator for use in well or subsea tools is provided. An interrupted annular armature member of a ferromagnetic material has a wire coil wound about it. A separate curved annular segment of the generally toroidally shaped armature is mounted for axial motion in the direction of the axis of revolution of the annular toroidally shaped member. Passage of electrical current through the coil causes axial motion (reciprocal) of the separate annular curved segment. This motion is coupled to a hydraulic pump piston in a preferred embodiment.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: July 16, 2002
    Assignee: BEI Technology
    Inventor: John Birckhead
  • Patent number: 6359537
    Abstract: A electromagnetic relay includes a spool, a coil, a U-shaped yoke, an armature, a movable contact, a pair of stationary contacts, and a taper. The spool has an inner hole and first and second flange portions formed at its two ends. The coil is wound on the spool. The yoke is locked at the flange portions of the spool by press fitting to stride over the coil. The armature is movably connected to one end of the yoke and positioned to extend through the inner hole of the spool. The movable contact is attached to move in an interlocked manner with the armature. The pair of stationary contacts are arranged to sandwich the movable contact. The taper is formed on at least one of press-fit locking surfaces of one end of the yoke and the first flange portion, and has a locking force that increases as being closer to a vicinity of the inner hole of the spool. A method of adjusting an electromagnetic relay, and a method of assembling an electromagnetic relay are also disclosed.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: March 19, 2002
    Assignee: NEC Corporation
    Inventors: Kazuhiro Ichikawa, Tatsumi Ide, Tsutomu Ono, Yosinori Sugawara, Toshiaki Chiba, Tosiyuki Gotou
  • Patent number: 5994986
    Abstract: A high frequency relay for switching a high frequency signal includes stationary contacts and terminals formed on a substrate in a planar configuration. An upper and a lower ground layer are respectively formed on the upper and lower surfaces of the substrate in the vicinity of the stationary contacts and terminals. A movable contact spring is so configured as to be connected to ground via the ground layers when it opens the contacts. With this configuration, the relay is capable of reducing the leakage of signals and thereby enhancing isolation characteristic.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: November 30, 1999
    Assignee: NEC Corporation
    Inventor: Masaji Takahashi
  • Patent number: 5986529
    Abstract: An inexpensive electromagnetic relay with a simple configuration is provided which does not require a sliding core to attain the desired operating characteristics. The electromagnetic relay includes a movable component which is supported on an upper end of a coil block in a way that the movable component can freely rotate. The movable component further comprises a movable contact element and a movable iron member. The movable contact element and the movable iron member are isolated from each other by a retainer. The movable contact element, movable iron member and retainer all form a single piece. The retainer further comprises a first retainer portion for retaining the movable contact element, and a second retainer portion for retaining the movable iron member. The first and second retainer portions are also formed into a single piece.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: November 16, 1999
    Assignee: Omron Corporation
    Inventors: Hirotaka Miyata, Masanori Nakamura, Hironori Sanada, Masahiro Kuwahara, Masahiko Tashiro
  • Patent number: 5936496
    Abstract: An electromagnetic relay is provided with a coil body that is preferably composed of ceramic with a winding and a U-shaped core yoke whose ends are bridged by a flat armature. The armature actuates an insulating switching spring made of ceramic or a similar material that, crosses the armature at about a 90.degree. angle, and extends between the ends of the core yoke and bridges two cooperating contacts at its movable end with a bridge contact. The relay can be utilized even in a very small design at high ambient temperatures.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 10, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventor: Josef Kern
  • Patent number: 5900791
    Abstract: An armature-mounting arrangement for a hinged-armature relay includes a yoke (3), an armature (1) positioned at an end portion of the yoke, and an armature holding spring (2) which has at least one switching contact thereon and which is mechanically coupled to the armature. The armature holding spring is formed as one piece with a return spring (5) for the armature and also with spring hooks (4). Each of the spring hooks has a first portion (4a) lying substantially flat on an outer side of the armature and a second portion (4b) extending from the first portion about the armature and lying almost flat against an outer surface of the yoke. This armature-mounting arrangement is a particularly uncomplicated and cost effective structure and its operation is also not particularly sensitive to fabrication tolerances of the armature and the yoke.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: May 4, 1999
    Assignee: Hella KG Hueck & Co.
    Inventors: Wolfgang Hoffmann, Andre Koerner, Maik Zimmer
  • Patent number: 5894254
    Abstract: A relay is formed by a magnet system containing a wound coil body, an L-shaped core arranged axially therein, an L-shaped armature and a base element with terminal elements. Stationary and moving contact elements are arranged between the base element and the magnet system. The armature is mounted with the free end of its transverse leg at the free end of the longitudinal leg of the core. The armature is secured through a U-shaped armature spring wrapping around the armature. The spring is secured with one arm at the longitudinal leg of the armature and a second arm is inserted in a recess between the coil body and the core. The actuation of the moving contact elements is provided via a slide coupled to the armature. This slide is hooked to the armature by spring tabs of the armature spring at opposing sides of the armature through snap latches formed at the ends of the side arms of the slide.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 13, 1999
    Assignee: EH Schrack Components AG
    Inventors: Klaus Reiter, Zoran Gmajner, Ernst Bittermann
  • Patent number: 5864268
    Abstract: An electromagnetic relay constructed as a hinged-armature relay in which an armature (5) is attached to a flat-shaped spring (6) which spring is constructed as one piece to serve both as a switch-contact spring and as a return spring and which is mechanically and electrically coupled to a load-current terminal (11), with the load-current terminal having a spring affixing area (11a) and a terminal area (11b), wherein the spring affixing area and the terminal area of the load-current terminal are bendable relative to one another. A response voltage of such a relay can be adjusted in a particularly uncomplicated and quick manner using a wedge-shaped adjusting tool (12) to bend the affixing area relative to the terminal area.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: January 26, 1999
    Assignee: Hella KG Hueck & Co.
    Inventors: Wolfgang Hoffmann, Andre Koerner, Maik Zimmer
  • Patent number: 5801608
    Abstract: The relay has a magnet system with an armature that operates on a switching spring via an actuating element. This switching spring has a frame-shaped contact spring as well as a fork-shaped reset spring, intermeshed in one plane and mutually decoupled, whereby the reset spring guides the actuating element via at least two linkage points lying in a line parallel to the pivot axis. The relay of the present invention provides a compact construction with few individual parts and a very low-friction operation.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: September 1, 1998
    Assignee: EH-Schrack Components-AG
    Inventor: Leopold Mader
  • Patent number: 5781089
    Abstract: An electromagnetic relay includes a winding, a magnetic core disposed within the winding, and an armature mounted for movement at a first end of the winding. At least one movable circuit contact is operably associated with the armature and movable with respect to at least one stationary contact mounted in the relay responsive to motion of the armature. An end plate is mounted at an opposing end of the winding and an insulating sheet is folded about a portion of the winding. The insulating sheet has first and second sides, with the first side being secured on one end to the end plate, and the second end disposed between the armature and the first end of the winding. An outer frame covers at least a portion of the insulating sheet. The insulating sheet functions to reduce the occurrence of voltage breakdown within the relay.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: July 14, 1998
    Assignee: Siemens Electromechanical Components, Inc.
    Inventor: Jeffrey A. Doneghue
  • Patent number: 5126710
    Abstract: A high-sensitivity electromagnetic relay comprises a magnetic circuit polarized by a permanent magnet, a flux distributor, an operating coil, and a moving core cooperating with the flux distributor by means of an air-gap. A return spring passes completely through the core being inserted between the flux distributor and the external end of a guide tube, which is shaped as a bottle-neck having a widened part housing the core, and a narrow part capable of sliding in an aperture.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: June 30, 1992
    Assignee: Merlin Gerin
    Inventors: Pierre Schueller, Pierre Laffont, Bruno Querlioz
  • Patent number: 4994776
    Abstract: A latching solenoid which effects latching through a magnetic flux arrangement rather than a electromechanical latching mechanism. An electro-magnetic arrangement is used to move the solenoid from one latched position to the other.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: February 19, 1991
    Assignee: Babcock, Inc.
    Inventor: Gheorghe C. Juncu
  • Patent number: 4951016
    Abstract: A relay includes a coil member having two through extending contact spaces parallel to the axis of the coil member. The contact tongues are arranged in the contact spaces and are anchored in common in a first coil flange to form working air gaps with pole pieces in the region of a second coil flange. The pole pieces are arranged in pairs and lie perpendicularly in a plane at an end face of the second coil flange. A permanent magnet arrangement having a plurality of magnetic poles corresponding to twice the number of pole pieces polarized the pole pieces. The permanent magnet poles facing away from the pole pieces are coupled to the bearing side of the contact tongues via flux guidance plates. The permanent magnet regions allow individual independent balancing of each and every pole piece to achieve synchronous switching of the two contact tongues.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: August 21, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gerhard Furtwaengler, Ulrich Kobler, Heinz Stadler, Josef Weiser
  • Patent number: 4839619
    Abstract: A relay for wideband signals is provided having a rotor which includes a permanent magnet structure, an armature, and a microstrip pattern for selectively engaging microstrip patterns on a substrate and having a stator which includes an electromagnet. To minimize wear, while maintaining high frequency performance, the rotor is raised, rotated, and lowered by a stator or electromagnet onto the new position relative to the substrate microstrip pattern. In a first stable state the electromagnet is inactive and the rotor engages the substrate microstrip pattern in a first position. To place the relay in a second stable state, the electromagnet is energized which simultaneously attracts the armature, raising the rotor, as well as repulsing the permanent magnet structure. The rotor then rotates to the desired second position and the electromagnet is inactivated. The rotor then lowers and engages the substrate microstrip pattern in a second position.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: June 13, 1989
    Assignee: Tektronix, Inc.
    Inventor: Jon C. Mutton
  • Patent number: 4814732
    Abstract: A magnetic latching actuator is disclosed having an arrangement of components which cooperate to minimize internal friction, while ensuring smooth and efficient operation. The invention uses a core having at least one electrical coil. In communication with the core is a permanent magnet. The magnet is positioned against a U-shaped magnetic flux connector having two parallel plates. The plates are sufficiently spaced from each other to permit the passage of a U-shaped armature therebetween. The armature is movable between the plates of the flux connector, enabling the transfer of magnetic flux to the armature while avoiding frictional engagement between the armature and flux connector. The armature further includes two end portions each designed to alternately engage the core at opposite ends.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: March 21, 1989
    Assignee: Tektronix, Inc.
    Inventor: George B. Pratt
  • Patent number: 4797645
    Abstract: An electromagnetic actuator comprising a magnetic circuit consisting of a stationary element and a movable element which actuator applies mechanical force to a valve rod, piston, electro-switch or the like and operates in a monostable manner with high sensitivity and at high speed and has a compact, simple and hardy structure.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: January 10, 1989
    Assignee: Mitsubishi Mining & Cement Co., Ltd.
    Inventor: Tokio Uetsuhara
  • Patent number: 4786278
    Abstract: Disclosed is a novel therapeutic device comprising means for generating a low-frequency current in which an undirectional current is superposed on a dc current; means for switching at time intervals the output polarity of said oscillating means; an electrode means which contains an ionized medicament and acts as the active electrode; and another electrode means which acts as the dispersive electrode. A high efficacy that is hardly attainable by iontophoresing either cation or anion is possible by allowing the whole of an ionized medicament such as aminovinyl photosensitizing dye or kojic acid to penetrate into the deeper part of the skin with the device of the invention.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: November 22, 1988
    Assignee: Ken Hayashibara
    Inventor: Kazumi Masaki
  • Patent number: 4772865
    Abstract: A flat-type polarized relay with contact springs disposed at the sides of a parallel to the coil system. A magnetic core projects beyond the coil form and cooperates with movable pole plates disposed together with a permanent magnet in a transversely movable cross slide. The magnet yoke is a U-shaped member made from flat material. The base of the yoke is rigidly connected with the magnetic core, and the legs run along the sides of the coil. The relay has a small overall height and a high switching capacity at small energizing currents.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: September 20, 1988
    Assignee: Standard Elektrik Lorenz AG
    Inventor: Werner Minks
  • Patent number: 4755782
    Abstract: A magnetically operated actuator comprises a support structure: a generally elongated operating element mounted on the support structure for selective displacement between first and second positions; at least one electromagnet assembly for driving the operating element to displace the latter between the first and second positions under the influence of magnetism emanating therefrom, which electromagnet assembly comprises a first magnetic member and a solenoid unit disposed around the first magnetic member and adapted to develop a magnetic field when electrically energized, with the first magnetic member being exposed in the magnetic field developed by the solenoid unit when the solenoid unit is electrically energized; and at least two second magnetic members cooperable with the first magnetic member.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: July 5, 1988
    Inventor: Seiji Yamamoto
  • Patent number: 4745382
    Abstract: A relay comprises a spool with flanges (2, 3), an angular yoke (7) and an angular armature (9) positioned in front of the free end of the yoke (7). A contact element (8) attached to the free end of the yoke is provided for contacting of the relay spring (10c), which is connected with said armature. During the assembly process an armature assembly including an armature (9), connecting element (8) and leaf spring (10) is preassembled and subsequently mounted as a single unit onto the yoke (7). Since all connecting elements are connected with the spool or with the yoke, additional soldering to the base is not required. This physical configuration enables a fully automatic production of the relay.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: May 17, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Dittmann
  • Patent number: 4742610
    Abstract: An electromagnetic relay having a contact tongue arranged extending within a base body and switchable between two pole plates, the contact tongue having an end secured by a hard fastening adhesive, the adjustment of the contact tongue between the pole plates occurs by periodically switching an alternating excitation current during solidification of the adhesive.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: May 10, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rolf-Dieter Kimpel, Josef Schweiger
  • Patent number: 4727344
    Abstract: A polarized relay with an electromagnetic drive comprises an electromagnetic yoke composed of a core wound with a coil and a yoke body, and having one end portion of one magnetic polarity and a pair of bifurcated end portions of the other magnetic polarity opposite to the one magnetic polarity. The bifurcated end portions are separated in opposition from each other. The one end portion of the yoke is disposed between the bifurcated end portions so as to cooperate to form a pair of working gaps. A movable block of a substantially C-like configuration incorporating a permanent magnet has two magnetic pole pieces which are disposed within the working gaps, respectively. Guide is provided for guiding the movable block in response to energization and deenergization of the coil so that the pole pieces are movable within the respective working gaps. A contact mechanism including movable contacts is mechanically coupled to the movable block to make or break circuit.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: February 23, 1988
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Hirofumi Koga, Kozo Maenishi, Shuichi Kashimoto, Sueaki Honda, Kenichi Tsuruyoshi, Takezo Sano
  • Patent number: 4720694
    Abstract: An electromagnetic relay has a coil member serving as a base body, an armature disposed in an axial bore in the coil member, a yoke at least one section extending outside of the coil parallel to the coil axis, a contact spring with a first section disposed on the yoke and crimped at an end face thereof in front of one flange of the coil member, and at least one further section engaging an extension of the armature. Movement of the armature causes movement of a further portion of the yoke between two switching positions in contact with one of two stationary contact elements. The contact spring is disposed in a channel formed between a leg of the yoke and a cover for the relay. A long free spring length is thus obtained while still maintaining reliable sealing of the contact chamber and a low overall height of the relay.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: January 19, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventor: Harry Schroeder
  • Patent number: 4703293
    Abstract: A polarized electromagnetic actuator device advantageous for single-stable armature operation comprises an armature pivotally supported for movement between two different angularly displaced positions about a pivot axis and an electromagnet with a pair of opposed pole members extending toward the ends of the armature on either side of the pivot axis. Disposed between the free ends of the opposite pole members is a bar-shaped three-pole magnetized permanent magnet which is magnetized to have end poles of the same polarity at the longitudinal ends and a center pole of the opposite polarity intermediate the ends, producing first and second flux paths opposing to each other and extending between the respective end portions of the permanent magnet and the adjacent end portions of the armature.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: October 27, 1987
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kenji Ono, Kazuhiro Nobutoki
  • Patent number: 4692728
    Abstract: An electromagnetically operated relay having a spring which compensates for misalignment of a moveable block as shown and described. The movable block reciprocates within said relay housing in response to forces exerted by the electromagnet. The block includes projections which engage openings in an leaf spring which biases the block. The spring to block engagement provides compensation for misalignment of the block, and for unequal forces applied to the block and/or spring.The compensation provided by the spring to block engagement is achieved by a loose fit between projections on the slidable block and openings in the spring. The freedom of movement provided by the slots allows the spring to bulge in a direction opposite to the force on the spring end with respect to the sliding block. By creation of this bulge between the two two projections on the sliding block, compensation is provided to the spring system.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: September 8, 1987
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Kozo Maenishi, Youichi Nakanishi
  • Patent number: 4688010
    Abstract: An electromagnetic relay has a casing of electrically insulative material which is divided by an insulating partition into a coil space for receiving an electromagnet and a switching space for receiving a contact assembly. An armature is magnetically coupled to the electromagnet and is operatively connected to the contact assembly for switching contact operation thereof in response to energization of the electromagnet. The partition extends along the entire length of the electromagnet without leaving any communication path between the coil space and the switching space, such that the electromagnet in the coil space can be insulatively separated from the contact assembly in the switching space within the length of the electromagnet.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: August 18, 1987
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kazuhiro Nobutoki, Kenji Ono, Keiji Okahashi, Sueyoshi Matsumura
  • Patent number: 4672344
    Abstract: A polarized electromagnetic relay has an armature extending through an axial opening in a coil body, a free end of the armature being switchable between two planar pole plates. The pole plates each have pole members disposed opposite one another and each further have top and bottom stop tabs received in spacer members which are a part of a flange of the coil body. Each pole plate with the pole members and stop tabs is stamped in a single cutting from sheet material. By positioning the stop tabs within the spacer members, a precise contact spacing between the two pole plates is insured with a low tolerance during assembly.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: June 9, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventor: Helmut Schedele
  • Patent number: 4658230
    Abstract: A magnetically operated actuator which comprises a generally elongated operating element displaceable between first and second positions, an electromagnet assembly for driving the operating element to displace between the first and second positions and comprising an iron core and a solenoid coil disposed around the iron core, a permanent magnet assembly rigidly mounted on the operating element and having a pair of opposite poles different in polarity from each other and having a magnetic field which is developed between the opposite poles, and a stopper member for restricting the stroke of movement of the operating element between the first and second positions. The electromagnet assembly is fixedly supported in position with one of the opposite ends of the iron core situated in the magnetic field developed between the poles of the permanent magnet assembly. The first and second positions are located in the vicinity of the opposite poles of the permanent magnet assembly.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: April 14, 1987
    Inventor: Seiji Yamamoto
  • Patent number: 4639702
    Abstract: The reed relay comprises a pair of fixed contact supports arranged at a regular spacing therebetween. A reed strip has a movable contact at a free end thereof and arranged so that the movable contact is positioned between the two fixed contact supports. A coil is wound around the reed strip, and a permanent magnet is disposed on one side of the movable contact. Since the permanent magnet is not positioned on the extension line of the reed strip, it is possible to readily inspect the contact conditions and the contact pressure without interruption due to the presence of the permanent magnet.
    Type: Grant
    Filed: October 9, 1985
    Date of Patent: January 27, 1987
    Assignee: Omron Tateisi Electronics Co.
    Inventor: Ryuichi Sato
  • Patent number: 4630016
    Abstract: An improved electromagnetic relay in which movable contact pieces of contact mechanisms are fitted into grooves formed in arm portions of a movable base for a movable block, while small projections formed on the movable contact pieces are fitted into recesses further formed in the grooves so as to fix the movable base to the movable contact pieces without any positional displacement or deviation for the prevention of various characteristic variations resulting from such deviation so as to maintain stable working characteristics over a long period.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: December 16, 1986
    Assignee: Omron Tateisi Electronics Co.
    Inventors: Shigetoshi Yuzawa, Muneo Nakata
  • Patent number: 4620172
    Abstract: The electromagnetic relay is constructed as a monostable or as a bistable relay with a rotatable tumbler switch. In both forms, there is a switch spring, that is adapted to the anchor, resolvably fastened in the anchor. Thereby an improved mass moment of inertia results, as well as improved switch stop of the relay, and an improved shock and vibration resistance. The switch spring has a sprayed-on synthetic footpiece which is fastened resolvably, turnably and pushably in an adapted opening of the anchor.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: October 28, 1986
    Assignee: Hengstler GmbH Geschaftsbereich Haller-Relais
    Inventor: Reiner Rudolf
  • Patent number: 4609899
    Abstract: A three-state polarized electromagnet comprises a stationary system (1) surrounded by a coil (5) and a moving system (7). Each system consists of a permanent magnet (2; 14) fitted with pole pieces (3, 4; 12, 13). The ends of the pole pieces are bent-back towards each other in order to define four air-gaps (E1 to E4) for permitting displacement of the moving system (7) between two end positions. One end portion of a pole piece forms part of only one air-gap and the air-gap faces are joined to pole faces of permanent magnets having the same polarity in order to reduce to zero the fluxes within the air-gaps which are closed when no excitation is applied and in order to permit a return to a stable central position.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: September 2, 1986
    Assignee: La Telemecanique Electrique
    Inventor: Gerard Koehler
  • Patent number: 4602230
    Abstract: An improved polarized relay characterized by a coil body being received in a recess of a base body along with a permanent magnet arrangement which has a pair of pole plates extending in a common plane with portions bent to form an air gap for receiving a free end of an armature, a flux plate extending perpendicular to the axis of the coil and having a recess to mount the armature and segments extending parallel to the pole plates to form spaces for receiving at least one permanent magnet with the recess being entirely closed by a protective covering so that the only exposure of the magnet arrangement and coil to the contacts is through an opening in which the armature extends to actuate the movable contact element. The polarized relay due to the insulation of the magnet arrangement and the coil is particularly adapted for contacts handling high currents at high ambient temperatures.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: July 22, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventor: Helmut Schedele
  • Patent number: 4577172
    Abstract: A relay formed of a coil body as a base body with a central opening passing therethrough and having an armature or contact tongue element positioned in said opening in an axial direction. One end of the tongue element is fastened and has fastening tabs at both sides of a central tongue. The fastening elements are fixed by means of a hardened glue in relatively broad grooves of a flange of the base body. During assembly, the contact tongue can be brought into a defined position by mechanical, magnetic or pneumatic means and can be fixed in this final position by means of introducing a fast-setting glue into the grooves so that subsequent adjustment is no longer necessary.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: March 18, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Schedele, Josef Schweiger
  • Patent number: 4577173
    Abstract: A relay having a coil body 1 with a tongue-shaped armature mounted on the inside of the coil body and the armature is secured at one end 6a to a first coil flange 4 and its free end moveable between two pole plates 8 which are in the vicinity of the second coil flange 5. At the end where the armature 6 is fastened the coil flange 4 comprises a rim bead which together with the retaining webs 21 of the armature 6 form a planar seating surface for a sealing film 12 and at the other end of the coil flange 5 the two pole plates 8 together with spacing members of the coil body form a planar seating surface for a sealing film 9 and a good seal of the relay is obtained due to such simple structure while maintaining good magnetic coupling.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: March 18, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Schedele, Josef Schweiger, Heinz Stadler
  • Patent number: 4571566
    Abstract: An electromagnetic relay includes at least one permanent magnet provided with pole pieces and a soft magnetic armature the ends of which cooperate with the pole pieces. The pole shoes are electrically insulated from each other and serve as fixed contacts. In the rest position of the armature, contact forces are obtained from the attraction force exerted by the permanent magnet. In order to exploit the total available permanent magnet force as contact force while, at the same time, achieving high responsiveness and resistance to mechanical stresses and shocks, the armature ends or the ends of the pole pieces facing away from the magnet poles are provided with contact springs which cooperate with the respective opposite pole pieces or armature ends to form contact couples so that, when the armature is switched-over, contact is made first through the contact spring or springs and then, upon bending of the actuated contact spring or springs, the respective armature end engages the pole pieces.
    Type: Grant
    Filed: October 27, 1983
    Date of Patent: February 18, 1986
    Assignees: Matsushita Electric Works, Ltd., Hans Saur
    Inventor: Hans Saur
  • Patent number: 4560966
    Abstract: A polarized electromagnet comprises a generally E-shaped yoke including a pair of outer legs and an intermediate leg therebetween, the three legs being interconnected by a base portion, and a coil wound about the intermediate leg. A generally U-shaped armature comprises a permanent magnet and two pole plates attached to both ends of the permanent magnet. The armature is so positioned that each pole plate extends between the intermediate leg and a respective one of the outer legs of the yoke. The armature may be fitted into a generally U-shaped resin member integrally molded with portions extending outwardly to opposite sides of the pole plates and slidable engaged in guide slots provided in the outer yoke legs. When used in an electromagnetic relay, these projecting portions form actuating members engaging movable contacts of the relay.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: December 24, 1985
    Assignees: Matsushita Electric Works, Ltd., SDS-Relais AG
    Inventors: Mitsuki Nagamoto, Ikuo Hashiya
  • Patent number: 4556858
    Abstract: The bistable electromagnet comprises a magnetic circuit partially surrounded by a winding constituted by a series of links (M1, M2, M3, M4, M5, M6) interconnected by air gaps, the links of a first type being movable relative to the other links of a second type, certain types of links comprising a permanent magnet (1, 3, 5, . . . ) provided on its pole surfaces with pole pieces (7, 8; 11, 12; 15, 16; . . . ) whose ends define two air gap zones with the neighboring links of the other type.
    Type: Grant
    Filed: October 30, 1984
    Date of Patent: December 3, 1985
    Assignee: La Telemecanique Electrique
    Inventor: Gerard Koehler
  • Patent number: 4543550
    Abstract: An electromagnetic relay includes an armature 1 supported in a central longitudinal bore 12 of a one-part bobbin 2 by means of a bearing which includes a first pair of curved bearing surfaces 1a, 1b, formed on the armature 1 and engaging a second pair of supplementarily curved bearing surfaces 2a, 2b, formed in the bore walls. The first bearing surfaces 1a, 1b may be either cylindrical in which case cylindrical second bearing surfaces 2a, 2b are formed in ribs 2c, 2d projecting inwardly from opposite bore walls, or spherical in which case spherical second bearing surfaces are formed directly in opposite bobbin walls.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: September 24, 1985
    Assignees: Matsushita Electric Works, Ltd., Hans Sauer
    Inventor: Hans Sauer
  • Patent number: 4529952
    Abstract: An electromagnetic relay comprises a bobbin carrying a coil and having a longitudinal central bore through which an armature extends. A permanent magnet is disposed between the central webs of two generally U-shaped yokes, the legs of the yokes having end portions cooperating with end sections of the armature which project from the central bore of the bobbin. The armature is pivotal about a fulcrum formed near its one end, whereas the other end of the armature carries an actuating card for driving a contact spring disposed at the side, and parallel to, the bobbin. The contact spring is fixed at one end to a first contact terminal and has its other end disposed between two fixed contacts connected to second and third contact terminals. The three contact terminals are disposed along a line generally extending parallel to the bobbin. The coil is connected to two or three coil terminals arranged at the other side of the bobbin along a line which also extends generally parallel to the bobbin.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: July 16, 1985
    Assignees: Matsushita Electric Works, Ltd., SDS-Elektro GmbH
    Inventors: Mitsuki Nagamoto, Ikuo Hashiya