Patents for H01F 7 - Magnets (20,067)
03/1993
03/23/1993US5196816 Polarized reversible magnet
03/18/1993WO1993005524A1 Rotary solenoid driver
03/18/1993DE4130755A1 Magnetic fluid treatment - has relative movement between field lines and fluid at angle which is not 90 degrees for increased effect
03/18/1993DE4130712A1 Driver for electromagnetic fuel injection valve - has ancillary circuit that responds when valve is fully open to reduce drive current, to hold level
03/18/1993DE4130711A1 Electromagnetic actuator driver for IC engine fuel injector - measures current and valve displacement to allow current to be reduced once valve has fully responded
03/18/1993DE4130710A1 Drive circuit for electromagnetic fuel injection valves - has single power drive stage operating several valves via multiplexing controller
03/17/1993EP0532298A1 Multi-voltage solenoid
03/17/1993EP0531426A1 Automated method for the manufacture of transponder devices.
03/16/1993US5194810 Superconducting MRI magnet with magnetic flux field homogeneity control
03/16/1993US5193781 Electro-pneumatic valve card assemblies
03/11/1993DE4209757C1 Operating magnet for EM switch, e.g. for motor protection - has two=part outer yoke fitted to coil carrier
03/11/1993DE4132816A1 Electromagnetically actuated hydraulic control valve - has armature displacing axial pin to vary orifice of back pressure stage to generate regulated output
03/11/1993DE4129487A1 Armature for solenoid actuated valve - has cylindrical body of magnetic material with plastic insert and sealing plugs enclosing spring controlled sleeve
03/11/1993CA2077869A1 Variable frequency solenoid driver circuit
03/10/1993CN1069695A Magnetic blackboard and its attachments of magnetic pen and magnetic eraser
03/10/1993CN1020057C Electromagnet with permanent magnet held by a cage
03/09/1993US5192936 Solenoid
03/04/1993WO1993004493A1 Screened electromagnetic coil of restricted length having optimized field and method
03/04/1993DE4128983A1 Polarised solenoid for bistable operation - has V-shaped yoke with linear armature and permanent magnets to provide stable operation with two end positions
03/03/1993EP0530093A1 Linear measuring device for small movements in magnetic circuits and ball bearings eqipped with such measuring devices
03/03/1993EP0529146A1 Coil for the electromagnetic control of a switch apparatus
03/03/1993EP0444055B1 Solenoid valve, in particular for fuel injection pumps
03/03/1993CN2127802Y Two-way electro-magnet
03/03/1993CN1020021C Magnetic system for Snap-opening
03/02/1993US5191288 Coil for generating gradient magnetic field
03/02/1993US5190325 Magnetic catch
03/02/1993US5189751 Vibrating toothbrush using a magnetic driver
02/1993
02/24/1993EP0527754A1 Control element
02/24/1993EP0391994B1 Control device for textile machines
02/23/1993US5189499 Charge-coupled device and process of fabrication thereof
02/23/1993US5189317 Circuit for limiting the output voltage of a monolithic semiconductor power device which drives a resonant load connected to a power supply
02/23/1993US5188336 Magnet system for a valve
02/17/1993EP0527393A1 Solenoid valve apparatus
02/17/1993CN1069143A Magnetic-synchro conversion electricity-economizing coil
02/17/1993CN1069141A Powerful soundless energy-saving electromagnet
02/17/1993CN1019921C Electromagnetic simulated muscle made of plastic and flexible magnet
02/16/1993US5187398 Electromagnetic actuator
02/16/1993US5186350 Insulated beverage container holder
02/11/1993DE4225463A1 Control valve for gas - has control diaphragm that moves to control flow through channels with permanent magnet core determining stand by position
02/10/1993EP0526999A1 Apparatus for the preparation of carrier particles
02/10/1993CN1068908A Energy-saving, quick and adjustable-speed electromagnet power supply
02/09/1993US5185575 Magnetic resonance imaging apparatus with artefact reduction
02/09/1993US5185546 Electromagnetic rotation control device
02/09/1993US5184395 System for manufacturing permanent magnetic field generators and relevant magnet geometries therefor
02/04/1993WO1993002462A1 Improvements in or relating to resonance reducing arrangements
02/04/1993CA2114107A1 Improvements in or relating to resonance reducing arrangements
02/03/1993EP0526122A1 Suspension for a contactor magnet
02/03/1993EP0525042A1 Switch for inductive loads
01/1993
01/27/1993EP0363457B1 Elctromagnet for an atomic absorption spectrometer
01/27/1993CA2074659A1 Contactor floating magnet
01/26/1993US5182481 Voice coil type actuator
01/26/1993US5181971 Manufacuring a magnetic roller
01/21/1993WO1993001645A1 Linear accelerator
01/21/1993WO1993001607A1 Electromagnet system and process and device for joining the core and yoke in an electromagnet system
01/21/1993DE4124087A1 Operating magnet for automatic sanitary tap - with finely-tuned magnetic circuit for reducing battery energy requirement
01/21/1993DE4122517A1 Electromagnetic valve for vehicle automatic transmission - with strap-shaped flux conduction element partially enclosing outside of relay housing
01/21/1993CA2113096A1 Electromagnet system and process and device for joining the core and yoke in an electromagnet system
01/20/1993EP0328537B1 Cylindrical permanent magnet for producing a uniform and transverse induction field
01/20/1993CN1068215A Sub-bistable electromagnet
01/19/1993US5181004 Solenoid coil assembly
01/19/1993US5181003 Electromagnetic solenoid valve
01/19/1993US5181002 Electromagnetic switch for starter
01/19/1993US5180138 Solenoid controlled servo valve
01/19/1993CA1312915C Three-dimensional double air gap high speed solenoid
01/14/1993DE4122601A1 Linearbeschleuniger Linear accelerator
01/13/1993EP0523002A1 Compound magnet comprising several individual magnets and a permanent magnetic bearing with a compound magnet comprising several individual magnets
01/13/1993EP0522042A1 Electromagnetic actuator.
01/12/1993US5178072 Ground coil for magnetically levitated railway and method of producing the same
01/12/1993CA2073545A1 Unipolar composite magnets and floating magnetic bearing
01/07/1993EP0327554B1 Magnetic block with adjustable magnetization for producing a permanent magnetic field in a zone of interest
12/1992
12/24/1992DE4120149A1 Flow valve electromagnetic actuator with sealed armature space - has yoke with apertures for flow of moulding elastomer used to form sealed sections
12/23/1992CN1067164A 磁性碰锁 Magnetic latch
12/15/1992US5172056 Magnetic field transmitter and receive using helmholtz coils for detecting object position and orientation
12/11/1992WO1992022860A1 Electropneumatic positioner
12/11/1992CA2089176A1 Electropneumatic positioner
12/10/1992WO1992022076A1 Highly efficient yoked permanent magnet
12/10/1992WO1992022075A1 Hybrid permanent magnets
12/10/1992CA2110289A1 Hybrid permanent magnets
12/10/1992CA2110288A1 Highly efficient yoked permanent magnet
12/09/1992EP0517452A1 Open MRI magnet
12/09/1992EP0516760A1 Terminations of cylindrical permanent magnets
12/08/1992US5170144 High efficiency, flux-path-switching, electromagnetic actuator
12/08/1992US5169050 Wire bonder with improved actuator
12/03/1992DE4141945C1 Sewing machine thread tensioner - has tensioning element in effective connection with electromagnet
12/03/1992DE4117958A1 Magnetic valve with double U=shaped sections of core - has electromagnet coil wound on juxtaposed limbs of U=sections for significant redn. of stray leakage flux
12/02/1992EP0516285A1 Apparatus for loading fastener collars onto a mandrel
12/02/1992EP0516244A1 Improved label for use in antitheft surveillance system
12/01/1992US5168211 For the production of a static homogeneous magnetic field
11/1992
11/26/1992WO1992021175A1 Magnet-superconductor systems having high thrust and high stability
11/24/1992US5166654 Permanent-magnet grab
11/24/1992US5166652 Bistable solenoid for use with a knitting machine
11/24/1992US5165652 Electromagnetic valve having a throttle path connected to a damping chamber
11/19/1992EP0513266A1 Rotating actuator
11/19/1992EP0513264A1 Rotating actuator
11/19/1992DE4116339A1 Solenoid with tappet - accommodates return spring on reduced diameter portion of tappet on inside
11/12/1992WO1992020080A1 Electric motor, controller therefor and methods for controlling and assembling same
11/12/1992DE4215011A1 Electromagnetic actuator for limited rotary movement - has stator assembly formed from pair of units with stator at centre having permanent magnet elements
11/11/1992EP0512139A1 Actuator driven by an electric motor
11/11/1992EP0432181B1 Electric rotary actuator
11/10/1992US5162771 Highly efficient yoked permanent magnet