Patents for H01F 7 - Magnets (20,067)
07/1984
07/04/1984EP0112740A1 Electronic control circuit for a multi-mode apparatus comprising a mechanism with an electromagnet
07/03/1984US4458289 Solenoid drive for valves
07/03/1984US4458230 Magnetic device
07/03/1984US4458228 Rotary positioning apparatus and associated methods, such as for a carburetor choke valve
07/03/1984US4458227 Electromagnetic actuators
06/1984
06/26/1984US4456881 Gradient-coil apparatus for a magnetic resonance system
06/26/1984US4456292 Electromagnetic gripping arrangement for metallic workpieces
06/26/1984CA1169905A1 Trip solenoid
06/20/1984EP0111219A2 Electromagnet for NMR tomography
06/20/1984EP0111016A1 Integrated latching actuators
06/20/1984EP0110970A1 Alternating-current attracting electromagnet
06/13/1984EP0109976A1 Cylindrical permanent magnet and manufacturing method of it
06/13/1984EP0099408A4 Composite coils for toroidal field coils and method of using same.
06/12/1984US4454558 Solenoid drive circuit
06/12/1984US4454402 Induction welding apparatus for laminated tubes
06/12/1984US4453652 Controlled current solenoid driver circuit
06/12/1984CA1169142A1 Constant energy drive circuit for electromagnetic print hammers
06/05/1984US4452210 Fuel injection valve drive circuit
05/1984
05/29/1984US4451810 Magnetic tool holder
05/29/1984US4451809 Electromagnetic device
05/29/1984US4451808 Electromagnet equipped with a moving system including a permanent magnet and designed for monostable operation
05/23/1984EP0109077A1 Control circuit for a solenoid driver for a dispenser
05/23/1984EP0109011A2 Magnetic anchoring apparatus with quadrangular pole arrangement
05/22/1984US4450427 Contactor with flux sensor
05/22/1984US4449691 Electromagnet
05/22/1984CA1167909A1 Solenoid driver using a single boost circuit
05/16/1984EP0108159A1 Electromagnetic swing drive, in particular for impact printers
05/08/1984US4447793 Rotary actuators
05/02/1984EP0107167A1 High sensivity striker
05/01/1984US4445528 Electromagnetic valve and method for assembly
04/1984
04/26/1984WO1984001662A1 High sensitivity striker
04/25/1984EP0106743A2 Switching type circuit for fuel injector
04/24/1984US4445102 Magnet pole tips
04/17/1984US4443776 Rotary magnet device
04/17/1984US4443775 Solenoid actuator
04/17/1984US4442997 Flow control valve apparatus
04/17/1984CA1165818A1 Brake magnet for watt-hour meters
04/10/1984US4442418 Trip solenoid
04/10/1984US4442417 Uniform field solenoid magnet with openings
04/10/1984US4441830 Printing solenoid
04/04/1984EP0104234A1 Print wire actuating device and method of manufacture thereof
03/1984
03/29/1984WO1984001226A1 Nmr imaging apparatus
03/27/1984US4439751 Direct current electromagnet
03/27/1984US4439750 Armature holding structure and hinge wire spring used therein
03/27/1984US4439700 Magnetic drive system for generating linear movements
03/27/1984US4438692 Printing apparatus with cooling of hammer printing coils
03/20/1984US4438420 Electromagnetic activation device
03/20/1984US4438419 Serial ring actuator
03/20/1984US4438418 Low-wattage solenoid
03/20/1984US4438362 Self-starting, direct current motor with permanent magnets of varied magnetic strength
03/20/1984CA1163897A1 Electro-hydraulic actuator system
03/14/1984EP0102723A1 Plate type fuel injector
03/14/1984EP0102486A1 Device for adjusting and supporting magnetic coils of a magnetic system for nuclear spin tomography
03/13/1984US4437136 Electromagnet
03/13/1984US4437081 Electromagnetic device
03/13/1984US4437053 Gradient power supply
03/06/1984US4434968 Magnetic jack
03/06/1984US4434933 Gas flow rate control system
02/1984
02/29/1984EP0101527A1 Magnetic-impulse valve with a permanent magnetic latch mechanism without changeable magnetisation
02/28/1984US4434450 Controlled flux contactor
02/22/1984EP0101389A1 Process and device for the self-synchronised control of an electromagnetic hammer
02/21/1984US4432441 Vibration isolation apparatus
02/21/1984CA1162643A1 Rotary actuator assembly for disk drive head positioner
02/15/1984EP0100436A1 Linear solenoid device
02/14/1984US4432033 Power source for a solenoid controlled fluid pressure device
02/08/1984EP0099941A1 Control circuit for an electromagnetically operated directional valve
02/08/1984EP0099911A1 Solenoid operated flow control module
02/02/1984WO1984000432A1 Iron core for the magnetic induction of a visual information displaying element with a magnetic tilting plate
02/01/1984EP0099408A1 Composite coils for toroidal field coils and method of using same.
01/1984
01/31/1984US4429292 Retaining plate for use in a magnet system of a relay
01/31/1984US4428558 Proportional solenoid
01/24/1984US4427960 Magnetic holder for small articles
01/24/1984US4427959 Circuit protecting sensor
01/18/1984EP0098611A2 Apparatus for transporting materials to be transferred and method of controlling exciting current therefor
01/11/1984EP0097773A1 Lifting magnet with sensor device
01/03/1984CA1159715A1 Electromagnetically operatable ram actuator, in particular for impact printers
12/1983
12/28/1983EP0096751A2 Electropneumatic pilot stage for a pneumatic servo valve
12/27/1983US4423361 Mechanical drive apparatus for providing linear motion in response to electrical drive signals
12/27/1983CA1159510A1 Variable strength beam line multipole permanent magnets and methods for their use
12/21/1983EP0096131A1 Process and circuit for exciting solenoid coil
12/20/1983US4422060 D.C. Electromagnetic actuator
12/20/1983CA1159105A1 Magnetic roller
12/20/1983CA1159099A1 Linear solenoid device
12/08/1983WO1983004340A1 Alternating-current attracting electromagnet
12/07/1983EP0095927A2 Magnetic device
12/06/1983US4419644 Switchable permanent magnetic holding device
12/06/1983US4419643 Self-sustaining solenoid
12/06/1983US4419642 Solenoid with saturable element
12/06/1983US4419641 Solenoid
12/06/1983US4418720 Solenoid operated directional valves having modular construction
11/1983
11/30/1983EP0095030A1 Lifting device
11/29/1983CA1157635A1 Method of manufacturing a pernament magnet which is to be arranged in an air gap of a transformer core
11/23/1983EP0094753A1 Electromagnetic actuator
11/22/1983US4417356 Magnetic friction device
11/15/1983CA1157082A1 Anisotropic permanent magnets and method of manufacturing same
11/08/1983US4414523 Encapsulated magnet for magnetic drive
11/08/1983US4414522 Fabricated lifting magnet assembly
11/08/1983US4414521 Low reluctance transformer core
11/01/1983US4413244 Electromagnet
10/1983
10/26/1983EP0092440A2 Magnet roller