Patents Examined by Raymond Barrera
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Patent number: 5889451Abstract: The relay has at least one switching system with a base body (1) forming a baseplate (11), in which base body a contact spring connection element (4) and mating contact elements (5, 6) are anchored and on which base body a coil (21, 22) with a core (23) and a yoke (24) is arranged upright with the coil axis perpendicular to the baseplate, an armature being arranged between the coil and the baseplate. A contact spring (3) connected to the armature (26) is constructed in a U-shaped manner, and the resultant two spring limbs form a connection limb (31) and a contact limb (32) having high current conductivity. The relay can be produced in a simple manner with simple parts either as a single relay or as a double or multiple relay.Type: GrantFiled: January 27, 1998Date of Patent: March 30, 1999Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 5886602Abstract: A contact-unit slide for contractors which includes an insulating body in which windows are drilled wherein in each of these windows a contact bridge and a compression spring associated with the contacts are housed, the slide being moved by the mobile parts of the contactor's electromagnet, the spring bearing on the opposite side of the support surface adjacent to the contact bridge. The body has slots extending between a window and a visible surface to allow it to be supported on the upper end of the associated spring.Type: GrantFiled: December 27, 1996Date of Patent: March 23, 1999Assignee: Schneider Electric SAInventors: Michel Burel, Jean-Pierre Duchemin, Bruno Jacquet
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Patent number: 5886603Abstract: A detent mechanism comprising a support member having a fixed seating member comprising opposite sides; a first spring for exerting a first spring force, disposed between one side of the fixed seating member and a first sliding member, further comprising a second spring member exerting a second spring force less than said first spring force, disposed between the other side of said fixed seating member and a second sliding member, whereby the forces of the springs are directed to operate on said first and second sliding members in opposite directions. A push button can apply an external force to the first sliding member to move it from a first position relative to the fixed seating member to a second position against the action of said first spring force. A detent mechanism connects the first and second sliding members when the first sliding member is in its second position and the second slidable member is in a first position.Type: GrantFiled: April 10, 1997Date of Patent: March 23, 1999Assignee: Power Breaker PLCInventor: Simon Powell
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Patent number: 5886608Abstract: A device for displaying the loose coupling between magnetic fields is provided, comprising a first disk having a plurality of magnetic elements attached to the first disk so that the magnetic field of the magnets extend radially from an outer edge of the first disk, a second disk having a plurality of magnetic elements attached to the second disk so that the magnetic field of the magnets extend radially from an outer edge of the second disk so that the magnets on the disks are loosely coupled to each other, the strength of the loose coupling depending on the orientation of the magnets with respect to each other, and a rotatable control member having a magnetic element attached to an end of the control member, the control member magnet being rotated to a first position such that a predetermined pole of the control member magnet is located adjacent to the magnets on the first disk causing a magnetic coupling of the magnet on the control member to the magnets on the first disk so that loose coupling and the chaoType: GrantFiled: January 30, 1997Date of Patent: March 23, 1999Assignee: The New Curiosity Shop, Inc.Inventor: Ilan S. Chabay
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Patent number: 5874879Abstract: A leakage flux canceling device is provided which requires a small number of parts and which has high space factor. A leakage flux canceling device 30 is mounted to a funnel side of a deflecting apparatus for reducing leakage flux to a panel side attributable to a horizontal deflection magnetic field, and comprises a ring-like body 32 having flanges 32 facing each other, a pair of bobbins 40 and 60 without cores formed on the flanges, a canceling coil 34 wound on each of the bobbins for canceling leakage flux, and winding grooves 48 and 68 formed in the respective bobbins such that the winding of each canceling coil has a greater length in the circumferential direction, and permitting the canceling coils to be wound from the outer surface side of the corresponding bobbins. The bobbins and the ring-like body are formed as a one-piece body, and the bobbins each have an arcuate shape matching the ring-like body.Type: GrantFiled: July 18, 1996Date of Patent: February 23, 1999Assignee: Sony CorporationInventors: Yoshio Taka, Tomomi Inoue
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Patent number: 5874880Abstract: An open superconductive magnet useful in magnetic resonance imaging (MRI) applications. The magnet has two spaced apart assemblies, wherein each assembly has a superconductive shielding coil spaced longitudinally outward and apart from a superconductive main coil. A magnetizable pole piece is spaced apart from the coils, has a radially-outer portion at least partially radially overlapping the main coil, and has a longitudinally-inner portion which projects longitudinally inward past the longitudinally outer end of the main coil.Type: GrantFiled: March 5, 1998Date of Patent: February 23, 1999Assignee: General Electric CompanyInventors: Evangelos Trifon Laskaris, Michael Anthony Palmo
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Patent number: 5872500Abstract: A superconducting annular electromagnet for MRI purposes includes an annular winding within which a generally cylindrical space is provided. The winding includes at least one pair of annular coils, each having an outer cylindrical surface which is suitably formed to define a feature which facilitates fixing.Type: GrantFiled: April 2, 1996Date of Patent: February 16, 1999Assignee: Oxford Magnet Technology LimitedInventor: Russell Peter Gore
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Patent number: 5872497Abstract: A high energy transfer relay includes a housing, a solenoid, a pivot arm, a stationary contact, a switching contact and a leaf spring. The switching contact is mounted on the leaf spring. The armature of the solenoid is coupled to the pivot arm such that when the solenoid is energized, the pivot arm moves in the direction of the stationary contact. Movement is against the force of the leaf spring which is positioned to bias the pivot arm away from the stationary contact against a stop. The leaf spring also pre-loads the pivot point. In addition, the resilience of the leaf spring cushions the impact of the switching contact on the stationary contact to help prevent contact bounce. The outer end of the pivot arm includes a flat that coacts with a flat wall to form an air cushion. The air cushion also assists in preventing contact bounce by absorbing the momentum of the pivot arm after the contacts mate.Type: GrantFiled: October 23, 1996Date of Patent: February 16, 1999Assignee: Physio-Control CorporationInventors: Daniel Yerkovich, Stephen T. Vincent, Richard J. Cardin
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Patent number: 5870328Abstract: In a bistable magnetic element, a pulse current or a dc-biased high frequency current is supplied to a soft magnetic material which has a helical magnetic anisotropy. As a result, the magnitude of a voltage induced across the soft magnetic material abruptly changes with respect to variation in an external magnetic field.Type: GrantFiled: September 9, 1996Date of Patent: February 9, 1999Assignee: Research Development Corporation of JapanInventor: Kaneo Mohri
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Patent number: 5864274Abstract: A magneto-mechanical power system including a cylindrical soft-iron vessel with permanent magnets arranged to form a shunt-magnetic gap with the inside wall the soft-iron vessel. The neck of the flux conducting disk is surrounded by a current winding. A magnetically attractable pole disk lies on the neck of the soft-iron vessel. An electrically conducting ring is fastened to the pole disk. The pole disk activates mechanical and/or electrical safety devices. The system is activated by a current impulse sent to the current winding. Current in the current winding creates a field that displaces the magnetic flux path of the permanent magnet.Type: GrantFiled: April 23, 1998Date of Patent: January 26, 1999Assignee: Magnet-Physik Dr. Steingroever GmbHInventors: Dietrich Steingroever, Erich Steingroever
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Patent number: 5861788Abstract: In application to a superconducting magnet which is cooled by a cryogenic refrigerator, provided is a superconducting coil which can maintain a cooled state and enables a stable operation and continuous driving even if a ramping speed is increased. First and second superconducting conductors are connected with each other. Respective tape-like superconducting multifilamentary wires are electrically connected with each other through solder, to form joint bodies. The respective joint bodies are insulated from each other by interposition of an insulating material therebetween.Type: GrantFiled: May 8, 1997Date of Patent: January 19, 1999Assignee: Sumitomo Electric Industries, Ltd.Inventors: Kengo Ohkura, Munetsugu Ueyama, Kenichi Sato
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Patent number: 5856772Abstract: A force rebalance accelerometer includes a proof mass suspended by one or more flexures between stationary mounted upper and lower excitation rings. Pick-off capacitance plates formed on opposing sides of the proof mass form capacitance elements whose capacitance varies in response to displacement of the proof mass to provide a displacement signal. The displacement signal is applied to one or more electromagnets, used to force the proof mass back to a null or at-rest position. The drive current applied to the electromagnets thus represents the force or acceleration applied to the accelerometer. The electromagnets include a magnet and a pole piece which forms a magnetic return path. In order to relieve stresses due to thermal expansion, the magnet is spaced apart from the pole piece to enable the bonding area to be constrained to a minimum which, in turn, reduces the overall stress on the accelerometer.Type: GrantFiled: June 13, 1996Date of Patent: January 5, 1999Assignee: AlliedSignal, Inc.Inventors: Steven A. Foote, Damon R. Stoddard
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Patent number: 5847633Abstract: A device for the safe discharge of a superconducting magnet coil (4) which is located inside a cryostat (2) and superconductively short-circuited by a superconducting switch (7) providing at or in the cryostat (2) a transmitter (10) of electromagnetic energy being located at a temperature level considerably above the cryogenic temperature of the superconducting magnet coil (4), which transmitter can be switched on quickly from outside, and by arranging in the region of the superconducting switch (7) at the cryogenic temperature level of the superconducting magnet coil (4) a receiver (20) for the emitted electromagnetic energy, which transmits the received energy directly or indirectly to a heating device (15) of the superconducting switch (7) or which activates an auxiliary energy source (41) in the region of the superconducting switch (7) , which on its turn effects a heating of the superconducting switch (7), so that it becomes normal-conducting and causes a discharge process of the superconducting magnet cType: GrantFiled: May 22, 1997Date of Patent: December 8, 1998Assignee: Bruker Analytische Messtechnik GmbHInventors: Tony Keller, Gunter Laukien, Rene Jeker, Arne Kasten
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Patent number: 5828278Abstract: A deflection system which improves picture distortion and misconvergence by eliminating the wrong winding of coil. in which a bobbin 20 for the deflection coil, whose partial cross section is of a funnel shape, is mounted on the outer peripheral surface of a cathode ray tube between a neck and a funnel for winding a deflection coil 26 thereon. When the deflection coil is wound from a bend onto the inner surface of a bobbin body, a coil layer regulating portion 40 is formed at a claw on the bend side. The coil layer regulating portion is a thick-wall portion formed on the inside of the claw on the bend side. By this thick-wall portion, a horizontal deflection coil 26 is wound on an average with respect to the bottom of respective bends 22 and 24 even when the horizontal deflection coil is wound from the bend 22, 24 onto the inner surface of the bobbin body. As a result, the coil is wound on an average with respect to a coil groove inside the bobbin, so that the wrong winding of coil is eliminated.Type: GrantFiled: August 28, 1996Date of Patent: October 27, 1998Assignee: Sony CorporationInventor: Akio Murata
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Patent number: 5828279Abstract: A holder for supporting a degaussing coil on a cathode ray tube. The degaussing coil holder is a flexible sheet having holes formed in each end to receive a lug of the cathode ray tube.Type: GrantFiled: August 8, 1996Date of Patent: October 27, 1998Assignee: Samsung Electronics Co., Ltd.Inventor: Kwang-cheal Shin
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Patent number: 5825270Abstract: The solenoid body of an electromagnetic solenoid having a pair of coil terminals to which an exciting coil is connected is movable together with a stopper plate in the direction of the arrow X and in the direction opposite to the direction of the arrow X in a casing. Each of a pair of coil springs of electrically conductive material has one end portion which is pressed against the spring supporting portion of the respective coil terminal, and the other end portion which is pressed against the inner surface of a cover, so that the electromagnetic solenoid and the stopper plate are urged towards a lock position. The coil springs includes external connecting portions to which external connecting wires are connected, so that current is supplied to the exciting coil of the electromagnetic solenoid through the coil springs.Type: GrantFiled: October 22, 1996Date of Patent: October 20, 1998Assignee: Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Masaichi Hattori, Osamu Shoji
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Patent number: 5821842Abstract: A liner of a deflection yoke is provided with non-threaded sleeves. A slide pin is inserted into the sleeve until a head portion of the pin comes in contact with a funnel of a cathode ray tube on which the yoke is mounted. After adjustment, a wedge is inserted into a hollow part of the pin for expanding radially the wall of the pin. Thereby, the pin is locked within the sleeve. In this way, the position of the yoke relative to the tube is secured.Type: GrantFiled: May 10, 1996Date of Patent: October 13, 1998Assignee: Videocolor, S.p.A.Inventors: Gildo DiDomenico, Paolo Spina, Anthony Stanley Baran
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Patent number: 5821841Abstract: A microceramic linear actuator includes a unitary ceramic body which has been formed with an internal cavity; a piston mounted for linear movement within the internal cavity and having a micromagnet with first and second poles of opposite polarity, and at least one shaft attached to the micromagnet; a conductive coil embedded in the unitary ceramic body and having a first portion wound in a clockwise direction and disposed in operative relationship to the first pole of the micromagnet, and a second portion wound in a counterclockwise direction and disposed in operative relationship to the second pole of the micromagnet.Type: GrantFiled: March 18, 1997Date of Patent: October 13, 1998Assignee: Eastman Kodak CompanyInventors: Edward P. Furlani, Dilip K. Chatterjee, Syamal K. Ghosh
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Patent number: 5818317Abstract: A deflection yoke having upper and lower magnets located at upper and lower positions of the funnel side of a cathode-ray-tube, for correcting upper and lower pin-cushion distortions. The upper and lower magnets are movably held so as to make magnetic fields formed by the magnets variable horizontally or vertically and asymmetrically. Accordingly, asymmetrical image distortion both in a vertical direction and a horizontal direction can be easily corrected.Type: GrantFiled: December 24, 1996Date of Patent: October 6, 1998Assignee: Sony CorporationInventor: Toshiya Takagishi
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Patent number: 5818318Abstract: The invention relates to a magnetic clamping device with a clamping body (1) comprising a cylinder plate (2) of non-magnetizable material provided with cylinders (5), a clamping plate (3) of non-magnetizable material situated at one side of the cylinder plate, a closing plate (4) situated at the other side of the cylinder plate, and pistons (9) made at least partly from magnetic material which are movable in the respective cylinders, which clamping body is further provided with channels (13, 14) to which a fluidic pressure source can be connected for the simultaneous movement of the pistons in the cylinders towards and away from the clamping plate. To improve the magnetic clamping action, all magnetic pistons (9) are fastened to a common piston plate (8). This ensures that all magnetic pistons, when energized, will exert their magnetic influence on the object to be clamped.Type: GrantFiled: June 10, 1996Date of Patent: October 6, 1998Assignee: U.S. Philips CorporationInventors: Henricus J. Ligthart, Petrus H. W. Swinkels, Jakob Vijfvinkel