Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 7 - Magnets
Patents for H01F 7 - Magnets (20,067)
02/1986
02/19/1986EP0172080A1 Polarised electromagnet with three positions and control circuit
02/19/1986EP0171831A1 Nuclear magnetic resonance apparatus with a magnet of permanent magnetic material
02/18/1986US4571568 Device for maintaining and fixing coils provided for making a constant and homogeneous magnetic field
02/18/1986CA1200831A1 Electromagnetic ram actuator
02/13/1986WO1986001028A1 Actuator with compensating flux path
02/13/1986EP0158643A4 Electromagnetically operated hydraulic valve device with snap-together valve housing.
02/12/1986EP0170894A1 Electromagnetic driving device
02/11/1986US4569605 Wire driving armature for dot printer
02/11/1986US4569504 Solenoid
02/05/1986EP0170562A1 Direct-current electromagnet, in particular for an electric commutator device
02/05/1986EP0170318A1 Nuclear magnetic resonance apparatus with a permanent magnet
02/05/1986EP0170056A1 Electrical flat coil actuator
02/04/1986US4568901 Magnetic fuel ion modifier
02/04/1986US4568207 Magnetic actuator mechanism
01/1986
01/29/1986EP0169748A1 Device for damping overvoltages in a solenoid, and solenoid equipped with such a device
01/15/1986EP0167639A1 Permanent magnet NMR imaging apparatus
01/10/1986CN85101455A Process for manufacturing permanent magnet
01/08/1986EP0167129A2 Winding support and method for NMR magnet axisymmetric correction coils
01/08/1986EP0167128A2 Correction coil assembly for NMR magnets
01/07/1986US4563664 Force motor with contoured spring coupling
01/07/1986US4562703 Plug tube for NMR magnet cryostat
01/03/1986WO1986000168A1 Electromagnetic actuator
01/02/1986EP0166514A1 Terminal arrangement for a solenoid switch, solenoid for electrical starting apparatus and method of manufacturing the solenoid
12/1985
12/31/1985US4561469 Electromagnetic control valve
12/24/1985US4560969 Electromagnetic positioner for a servovalve or the like
12/24/1985US4560968 Magnetic actuator for a gas valve
12/24/1985US4560967 Force motor
12/24/1985US4560933 Apparatus for adjustably mounting coils of a magnet system for nuclear spin tomography
12/20/1985CN85200428U Saving energy electromagnet
12/17/1985US4559578 Dual aperture dipole magnet with second harmonic component
12/17/1985US4559511 Vacuum contactor having DC electromagnet with improved force watts ratio
12/17/1985US4559483 Control device for increasing speed of actuation of an electromagnetic consumer, particularly in an internal combustion engine
12/17/1985CA1198162A1 Nmr imaging apparatus
12/17/1985CA1198145A1 Hybrid linear actuator
12/10/1985US4558294 Magnet roll and method of producing the same
12/10/1985US4558293 Solenoid assembly
12/10/1985US4557293 Arrangement for controlling an electro-hydraulic valve
12/05/1985WO1985005448A1 Spin resonance tomograph
12/03/1985US4556858 Bistable electromagnet with several armatures comprising a permanent magnet
11/1985
11/27/1985EP0162755A1 Control circuit for a bistable solenoid
11/27/1985EP0162369A2 Axisymmetric correction coil stem for NMR magnets
11/26/1985US4555685 Formed permanent magnet
11/21/1985EP0161832A1 Tunable segmented ring magnet and method of manufacture
11/21/1985EP0161782A1 Magnetic field generating device for NMR-CT
11/21/1985EP0161397A2 Actuator system having magnetomechanical cantilever beam
11/19/1985USRE32035 Electromechanical transducer controlling device
11/19/1985US4554610 Magnetic gripping device
11/12/1985US4553122 Cored magnet with lightweight large area pole pieces
11/12/1985US4553121 Core structure for electromagnetic devices
11/12/1985US4553074 Method of and apparatus for the autosynchronization of an electromagnetic hammer
11/06/1985EP0160350A1 Magnet assembly
11/06/1985EP0160132A1 Limited angle torque motor
11/06/1985EP0160121A1 Electromagnet for electrical switching devices, particularly for contactors
11/05/1985CA1196366A1 Self-starting, direct current motor with permanent magnets of varied magnetic strength
10/1985
10/29/1985US4550302 Solenoid
10/23/1985EP0159207A1 Quick over-current trip mechanism
10/23/1985EP0158643A1 Electromagnetically operated hydraulic valve device with snap-together valve housing.
10/22/1985US4549155 Permanent magnet multipole with adjustable strength
10/22/1985US4548047 Expansion valve
10/15/1985US4547759 Coil form
10/15/1985US4547758 Forming green body of iron oxide with barium, strontium or lead oxide then surface magnetism
10/15/1985US4547757 Electromagnet yoke structure
10/15/1985US4547712 Subharmonic controller for electromagnetic exciter
10/15/1985US4547087 Microprocessor-controlled printing mechanism having an opto-electronic sensor
10/09/1985EP0157632A2 Force motor
10/09/1985EP0157631A2 Force motor
10/09/1985EP0157630A2 Force motor
10/09/1985EP0157216A1 Magnetic apparatus
10/09/1985EP0157029A1 Electromagnetic drive and polarized relay
10/09/1985EP0157014A2 Wire print head
10/08/1985US4546403 Solenoid switching driver with solenoid current proportional to an analog voltage
10/08/1985US4546339 For controlling a fuel injection valve
10/08/1985US4546338 Rotary driving apparatus
10/02/1985EP0156547A1 Dot printer head
10/01/1985US4544986 Method of activating an electromagnetic positioning means and apparatus for carrying out the method
10/01/1985US4544985 Lifting electromagnet
10/01/1985US4544904 Composite magnet and magnetic circuit
10/01/1985US4544067 Magnetic tool holder
10/01/1985US4543991 Electromagnetic double-valve for controlling the flow of two different materials
09/1985
09/24/1985US4543551 Apparatus for orienting magnetic particles in recording media
09/24/1985US4542890 Magnetic chuck
09/18/1985EP0154820A2 Magnetically attachable sheet
09/17/1985US4542361 Permanent magnet field diverted to do useful work
09/17/1985CA1193697A1 Controlled current solenoid driver circuit
09/12/1985WO1985004044A1 Electromagnetic actuator apparatus
09/10/1985US4540966 Multiple magnet core unit
09/10/1985US4540965 Electromagnetic assembly
09/10/1985US4540962 Solenoid coil wire termination
09/10/1985US4540154 Solenoid valve
09/10/1985CA1193305A1 Uniform field solenoid magnet with openings
09/03/1985US4539542 Solenoid construction and method for making the same
09/03/1985US4538643 Electropneumatic pilot control stage for a pneumatic servo valve
09/03/1985CA1192953A1 Electromagnet for nmr tomography
08/1985
08/28/1985EP0152675A2 Limited angle torque motor with magnetic centering and stops
08/28/1985EP0152588A1 Gradient coil system of an installation for nuclear spin tomography
08/27/1985US4538130 Tunable segmented ring magnet and method of manufacture
08/27/1985US4538129 Magnetic flux-shifting actuator
08/27/1985US4538127 Magnetic quadripole
08/27/1985US4538126 Electromagnetic relay with symmetric reaction
08/27/1985US4537033 For use in nuclear magnetic resonance devices
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