Patents for H01F 7 - Magnets (20,067)
04/1988
04/05/1988US4736175 Polarized rotary solenoid
04/05/1988US4735517 Printer having flux regulator
04/05/1988CA1234854A1 Electromagnet for electric switching device
03/1988
03/31/1988DE3709474C1 Solenoid valve
03/31/1988DE3632475A1 Silencer, in particular for hydraulic and pneumatic valves as well as for actuating magnets
03/30/1988EP0261292A2 Method of producing fully dense permanent magnet alloy article
03/30/1988CN87204488U Permanent magnetic electromagnet for crane
03/29/1988US4734653 Magnetic field apparatus for a particle accelerator having a supplemental winding with a hollow groove structure
03/29/1988US4734131 Permanent-magnetic material
03/24/1988DE3722479A1 Solenoid valve
03/23/1988EP0260732A1 Magnet actuator for a printing needle of a mosaic printer
03/23/1988EP0260387A1 Method for producing a magnet arrangement and magnet arrangement obtained by this method
03/22/1988US4733212 Pulse latching solenoid
03/22/1988US4731914 Method for manufacturing an electrohydraulic valve assembly
03/16/1988EP0259356A1 Multi-chamber magnetic distributing valve
03/15/1988US4731778 Electro-magnetic drive unit comprising a pivotable armature
03/15/1988US4731598 Periodic permanent magnet structure with increased useful field
03/10/1988WO1988001789A1 Apparatus for air gapping the armature in a compound spool valve
03/09/1988EP0259067A2 High temperature ferrofluid multiple stage seal and method
03/09/1988EP0258569A2 Electromagnetic positioning device
03/09/1988CN87105177A Method of producing neodymium-iron-boron permanent magnet
03/08/1988US4730175 Polarized electromagnet device
03/08/1988US4729397 Electromagnetic control valve for a pressure fluid and associated method
03/02/1988CN85103757B High-tension resisting proporational electromagnet with bidirectional polar
03/01/1988US4729056 Solenoid driver control circuit with initial boost voltage
03/01/1988US4728916 Solenoid operated fluid control valve
03/01/1988US4728895 System of coils for producing additional fields for obtaining polarization fields with constant gradients in a magnet having polarization pole pieces for image production by nuclear magnetic resonance
02/1988
02/24/1988EP0256445A2 Electrically operated fluid valve
02/23/1988US4727344 Electromagnetic drive and polarized relay
02/23/1988CA1233040A1 Magnetic key and apparatus for magnetising and identifying same
02/18/1988DE3627793A1 Electromagnetically operated valve
02/18/1988DE3627792A1 Electromagnetically operated valve
02/17/1988CN87208500U Power economizer of electromagnet
02/16/1988US4725803 Gradient coil for nuclear magnetic resonance image forming apparatus
02/16/1988US4725802 Solenoid actuator with stationary armature extension
02/16/1988US4725781 Coil arrangement for nuclear magnetic resonance examinations
02/16/1988US4725396 Electromagnetic actuators and method for producing the same
02/16/1988US4725041 Fuel injection apparatus and system
02/16/1988US4724601 Method of manufacturing a return-to-zero gauge
02/16/1988EP0238509A4 Solenoid driver control unit.
02/09/1988US4724412 Method of determining coil arrangement of an actively shielded magnetic resonance magnet
02/09/1988US4724389 Loop-gap resonator for localized NMR imaging
02/09/1988US4724349 Pivoting armature of an electric control motor
02/09/1988CA1232592A1 Proportional solenoid valve
02/03/1988EP0254939A1 Magnetic gripping apparatus
02/03/1988CN87105323A Magnetic fastener
02/03/1988CN86104842A Electromagnet energy economizing controller
02/02/1988US4722482 Electro-magnetic injection valve having enhanced valve-opening forces
02/02/1988US4722364 Electromagnet for fuel injection systems
01/1988
01/28/1988DE3624231A1 Method for indicating solenoid-valve operation and a circuit arrangement for carrying out the method
01/27/1988EP0254529A2 Permanent-magnetic material
01/27/1988EP0254416A1 Electrical coils
01/27/1988EP0254251A2 Method of producing neodymium-iron-boron permanent magnet
01/26/1988US4721914 Apparatus for unilateral generation of a homogeneous magnetic field
01/26/1988CA1232039A1 Magnetic apparatus
01/21/1988DE3722756A1 Voltage-dependent electrical rotating drive
01/21/1988DE3623908A1 Control circuit for the magnet coil of an electromagnet
01/19/1988US4720078 Solenoid valve
01/19/1988US4719882 Electromagnetic-positioning system for gas exchange valves
01/14/1988DE3621404A1 Electronic switching device for a magnet or the like
01/13/1988EP0252634A2 Magnetic field coils
01/13/1988EP0099408B1 Composite coils for toroidal field coils and method of using same
01/12/1988US4718832 Electromagnetic reciprocating pump
01/12/1988US4718431 Surface coil with calibration substance for use in a nuclear magnetic resonance apparatus
01/07/1988EP0251561A1 Magnetic field generator
01/07/1988EP0251342A2 Magnet assembly
01/07/1988EP0251321A1 Iron core of electromagnet and method of producing the same
01/07/1988DE3720347A1 Solenoid valve
01/05/1988US4717900 Low profile electromagnetic linear motion device
01/05/1988US4717526 Poloidal coil arrangement for a nuclear fusion apparatus
01/05/1988US4717118 Electromagnetically operable valve
12/1987
12/29/1987US4716393 Electromagnetic actuator
12/29/1987US4716370 Coil arrangement for producing static magnetic field
12/29/1987US4715904 Method for producing a magnet with radial magnetic anisotropy
12/29/1987US4715332 Electromagnetically-actuated positioning system
12/29/1987US4715331 Electromagnetically-actuated positioning mechanisms
12/29/1987US4715330 Electromagnetically-actuated positioning mechanism
12/29/1987US4715198 Control magnet assembly for a pattern apparatus in knitting machines for electrically controlled needle selection
12/29/1987CA1230789A1 Fuel injection apparatus and system
12/23/1987CN86103941A Dynamic constant-moment method for electromagnetic attraction-operated device and its applications
12/17/1987WO1987007758A1 Electromagnetic regulator
12/17/1987WO1987007757A1 Electromagnetic actuation device
12/16/1987EP0249448A1 Defect detector circuit for inductive load driving circuit
12/10/1987DE3618830A1 Solenoid valve
12/09/1987EP0248272A2 Polarized electromagnet device
12/08/1987US4711265 Spring and washer device
12/05/1987CN86209799U 磁性固定器 Magnetic holder
12/03/1987WO1987007456A1 Method and device for controlling an electromagnet of which the energization by a monoarch periodic current causes the actuation of a moveable part
12/02/1987CN87207804U Protector for magnetic valve winding
12/01/1987US4710740 Electromagnetic operator for a contactor with improved shock pad
12/01/1987US4710713 Nuclear magnetic resonance sensing apparatus and techniques
12/01/1987US4709619 Proportional magnet
11/1987
11/25/1987EP0246550A1 Electromagnetic levitation device
11/24/1987US4708317 Electromagnetic actuator
11/19/1987WO1987007072A1 Electromagnetic switching device
11/19/1987EP0246137A1 Block for the correction of magnetic-field inhomogeneity, and magnet provided with such a block
11/19/1987EP0246136A1 Method for adjusting homogeneity correctors of a magnetic field generated by a magnet
11/19/1987EP0246099A1 Solenoid
11/18/1987CN87101942A D-c tube coil
11/18/1987CN86210946U Ac/dc traction electromagnet