Patents for H01F 7 - Magnets (20,067)
04/1992
04/15/1992EP0480146A2 Electromagnetic actuator for vehicles
04/15/1992EP0267253B1 Method and device for controlling an electromagnet of which the energization by a monoarch periodic current causes the actuation of a moveable part
04/14/1992US5105329 Apparatus for driving the armature of an electric stapler
04/14/1992US5105153 Gradient speed-up circuit for nmr system
04/09/1992DE4031427A1 Operating EM regulator at reduced energy level - reducing retention power once switched on and monitoring to boost power if change in switched state is detected
04/08/1992EP0479514A1 Magnetic field generating device used for MRI
04/08/1992EP0479278A1 Cylindrical magnet apparatus suitable for nmr imaging
04/08/1992EP0478973A1 Magnetsystem
04/08/1992CN2101320U Matrix type permanent magnetic sucking disc
04/07/1992US5103200 High-field, permanent magnet flux source
04/07/1992US5101856 Electromagnetic directional control valve
04/01/1992EP0478041A1 Method of forming a magnetically-coded pattern in a permanent magnet material
04/01/1992EP0477746A2 Electromagnetic actuator, especially for motor vehicles
04/01/1992CN2100685U Multi-wire shunted series electromagnet
03/1992
03/31/1992CA1298266C Electromagnetic flow control valve for pressure control or the like
03/30/1992CA2052167A1 Magnet system
03/26/1992DE4029785A1 Electromagnet for hydraulic valves - has magnetically closed circuit casing in two parts which have sealed non-magnetic spacer ring between them and have outer coil
03/25/1992EP0476609A2 Permanent magnet magnetic circuit
03/24/1992US5099217 Constant gap cladded twister
03/24/1992US5099198 Circuit configuration for monitoring the final stages of a plurality of valves
03/24/1992US5099158 Electromagnetic actuator
03/24/1992US5098062 Magnetic valve incorporating a permanent magnet for effecting valve closure
03/24/1992CA1297745C Electromagnet, valve assembly and fuel metering apparatus
03/19/1992WO1992004721A1 Electromagnetic regulating device
03/18/1992EP0475552A2 Control circuit for a multiple power level solenoid
03/17/1992US5097240 Magnetic field generating device for esr system
03/17/1992US5096339 Electromagnetic base drill with antifloating control means
03/17/1992US5095856 Electromagnetic valve actuating system
03/17/1992CA1297264C Isotropic rare earth-iron field magnets for magnetic resonance imaging
03/12/1992DE3348219C2 Control motor for servo-valve
03/11/1992CN1059420A D.c. electromagnet with changeable polarity
03/11/1992CA2033534A1 Control circuit for a multiple power level solenoid
03/10/1992US5095295 Superconducting switching device
03/10/1992US5095234 Electromagnetic solenoid
03/10/1992US5094264 Electromechanical solenoid valve with ratchet system for positioning the coil assembly
03/10/1992US5094173 Superconducting magnetic levitated train, train system method of controlling the same, and superconducting coil for magnetic levitated train
03/05/1992WO1992003650A1 Method of adjusting a valve, and valve which can be adjusted by this method
03/05/1992WO1992003646A1 Process and device for driving an electromagnetic consumer
03/04/1992EP0473232A1 Electromagnetic support with position-independent characteristics
03/04/1992EP0473231A1 Electromagnetic support with unilateral control currents
03/04/1992EP0473230A1 Electromagnetic support with current-independent characteristics
03/04/1992EP0473097A2 System for irradiating a surface with atomic and molecular ions using two dimensional magnetic scanning
03/04/1992EP0472607A1 Method and apparatus for controlling the operation of a solenoid
03/03/1992US5093770 Electrical energy storage system
02/1992
02/27/1992DE4026928A1 Direct drive unit using commutatorless electromotor - having pairs of permanent magnets on rotor with opposite poles facing each other for setting adjuster in motor vehicle
02/27/1992DE4026918A1 Direct drive unit using commutatorless electromotor - sets air=fuel mixt. of IC engine using rotary magnet as rotor
02/27/1992DE4026531A1 Adjusting EM fuel injection valve of IC engine - using relative axial displacement and rotation of cover and sleeve to influence opening and closure rates
02/25/1992US5091710 Step linear actuator
02/25/1992US5091021 Directing energy in a pattern to heat a magnet, selectively magnetizing, cooling to generate detectable magnetic flux density
02/25/1992US5090469 Window screen apparatus and method for making
02/25/1992CA1296410C Non-commutated linear motor
02/20/1992WO1992002944A1 A permanent magnet release solenoid for automatic circuit breakers
02/20/1992WO1992002827A1 Permanent magnet for nmr imaging equipment
02/20/1992WO1991001622A3 High efficiency, flux-path-switching, electromagnetic actuator
02/20/1992DE4029794A1 Verfahren und einrichtung zur ansteuerung eines elektromagnetischen verbrauchers Method and device for activation of an electromagnetic consumer's
02/19/1992EP0471509A2 Split NMR coil with improved connector
02/18/1992US5089798 Apparatus for generating uniform magnetic field using small diameter spherical metallic members provided on magnetic poles
02/18/1992US5089060 Controlled heating with energy beam to reduce coercive force, then exposure to reverse magnetic field
02/18/1992US5088467 Electromagnetic injection valve
02/13/1992DE4025278A1 Anisotropic samarium-iron-nitrogen magnetic article prodn. - by nitriding hot compacted and shaped precursor powder body
02/12/1992EP0470475A2 Method for the preparation of a body from anisotropic magnetic material based on the Sm-Fe-N substance system
02/12/1992CN2096116U Pulse rotary electromagnet
02/06/1992WO1992001876A2 Electromagnetic actuator
02/06/1992DE4024496A1 EM valve operating circuitry - has pair of control stages to provide different operating voltage levels
02/05/1992EP0469967A1 Magnetic transmitter and receiver for determining the position and orientation of a moving body
02/05/1992EP0469539A1 Continuously magnetizing magnet
02/05/1992EP0469385A1 Magnet system
02/04/1992US5086442 Magnetic coupling for a rotating X-ray tube
01/1992
01/31/1992CA2048115A1 Continuously magnetizing magnet
01/30/1992DE4023828A1 Adjusting EM valve for fuel injection - adjusting current without requiring access to return spring by changing magnetic characteristics of inner pole
01/29/1992EP0468425A2 Magnet assembly
01/29/1992CN2094792U Low temp. in creasing high-efficient energy-saving dynmaic electricmagnetic driver
01/29/1992CN2094565U Electromagnet for computer needle work machine
01/29/1992CN1058288A Small universal electromagnet operated at wide voltage range
01/28/1992US5084690 Stepped magnetic field source
01/28/1992US5084311 Transparent tube, patterened coil conductor, magnetic resonance sensors
01/28/1992US5083747 Hat shaped armature for solenoid valve
01/22/1992EP0467437A1 Finite length magnets for MRI applications
01/22/1992EP0466985A1 Rectilinear motion proportional solenoid device
01/21/1992US5082745 Boron, neodymium, and iron alloy; protective coating
01/15/1992EP0466536A2 Electromagnet, particularly for a contactor
01/15/1992EP0465813A1 Actuator unit
01/15/1992EP0270536B1 Actuating system
01/15/1992CN2093432U Combined permanent magnetic steel
01/15/1992CN1057922A Rare earth permanent magnet having excellent corrosion resistance
01/14/1992US5080380 Magnetic chuck
01/14/1992US5080323 Adjusting device for gas exchange valves
01/09/1992WO1992000480A1 Electronic control system for magnetic valves operated individually or in cascade
01/09/1992DE4020275A1 Actuator for adjusting two positions
01/08/1992EP0465186A1 Plungerless solenoid construction
01/08/1992EP0465120A1 Bistable solenoid and knitting machine using the same
01/08/1992EP0464370A1 Actuator unit
01/08/1992CN1015292B Multi-position electromagnet
01/07/1992US5079534 Electromagnet with press die and adjustable air gap
01/07/1992US5079459 Electro-hammer rapper
01/04/1992CA2020331A1 Plungerless solenoid construction
01/02/1992EP0463590A2 Actuator for adjusting two self-holding positions
01/02/1992DE4020934A1 Regelelektronik fuer solobetriebene magnetventile und fuer ventilkaskaden Control electronics for solo operated solenoid valves and valve for cascade
12/1991
12/31/1991US5076221 Electromagnetic valve actuating system
12/31/1991US5076114 Electromagnetic interlock