Patents for H01F 7 - Magnets (20,067)
06/1980
06/03/1980US4205915 Sheet positioning means
06/03/1980US4205430 Method of treating high energy magnets for improving their performance
05/1980
05/28/1980EP0011335A1 Magnet coil arrangement for producing a homogeneous magnetic field
05/27/1980US4205307 Device for monitoring the function of electromagnets
05/27/1980US4205287 Electromagnetic device
05/14/1980EP0010683A1 Regulation valve for the heating circuit of an automobile and method for its manufacture, particularly its adjustment
05/13/1980CA1077554A1 Rotary actuator with magnetic means to hold rotor stationary at predetermined position
05/06/1980US4200972 Method of manufacturing a solenoid
04/1980
04/29/1980US4200852 Magnetic locking apparatus
04/29/1980US4200401 Print wire solenoid
04/22/1980US4198863 Electromagnetic torsional stiffness element
04/22/1980CA1076187A1 Wet plunger type solenoid
04/17/1980WO1980000693A1 An electromagnet for moving iron objects
04/15/1980US4198614 Deflection yoke assembly including a beam positioning magnet arrangement
04/15/1980US4197840 Permanent magnet device for implantation
04/08/1980US4197518 Electromagnetic actuating device employing lever means
04/03/1980WO1980000552A1 An apparatus and method for producing cyclic motion
04/02/1980EP0009388A1 Tubular solenoid
04/02/1980EP0009288A1 Magnet coil arrangement for producing linear magnetic field gradients
04/01/1980CA1074915A1 Bias structure to efficiently package a magnetic bubble domain device
03/1980
03/25/1980US4195277 Moving permanent magnet limited motion actuator
03/19/1980EP0008660A1 Structure in the form of a symmetrical magnetic retaining system for release devices with a movable element, e.g. a print hammer
03/18/1980US4194173 Solenoid construction
03/18/1980US4194110 Localized-field static magnetizing device
03/18/1980US4193421 Electromagnetically operated valve unit
03/18/1980CA1073968A1 Battery back-up system for electromagnets
03/06/1980WO1980000391A1 A magnetic latch device for a clapper type contactor
03/05/1980EP0008509A1 Control circuits for solenoids
03/04/1980US4191937 Electromagnet magnetic circuit with permanent-magnet armature
03/04/1980US4191061 Solenoid-operated fuel flow control for fuel injection system
03/04/1980CA1073124A1 Lineal lock for x-ray apparatus
02/1980
02/26/1980US4190548 Plastic bonded permanent magnet and method of making same
02/19/1980US4189699 Limited-rotation motor with integral displacement transducer
02/19/1980US4188751 Magnetic seed treating device
02/19/1980CA1072175A1 Apparatus for improving the radial homogeneity of axial magnetic fields
02/05/1980US4187485 Coil arrangement for electromagnetically influencing magnetic fields, in particular for homogenizing magnetic dipoles
02/05/1980US4187444 Open-circuit magnet structure for cross-field tubes and the like
02/05/1980US4186567 Ornament utilizing rare earth-cobalt magnet
02/05/1980CA1071282A1 Infinitely variable wear-free eddy current and/or hysteresis brake, preferably for track-bound vehicles
01/1980
01/29/1980US4186363 Solenoid assembly for elevated temperature service
01/29/1980CA1070801A1 Solenoid apparatus
01/23/1980EP0006843A1 Electronically controlled magnetic valve
01/22/1980US4185262 Magnet device
01/22/1980US4185261 Electromagnetic lifting device
01/22/1980US4184612 Automatic sprayer
01/15/1980US4183453 Electronically operated portable fastener driving tool
01/15/1980CA1069971A1 Sec05-permanent magnet joined to at least one iron mass and method of fabricating such a permanent magnet
01/15/1980CA1069790A1 Permanent magnet device for implantation
01/09/1980EP0006443A1 Magnetic bubble mounting unit
01/09/1980EP0006166A1 Print mechanism for use in printing apparatus and printing apparatus including such mechanisms
01/08/1980US4183070 Electromagnet for degaussing record-reproduce heads
01/08/1980US4183000 Electromagnetic safety mechanism
01/08/1980CA1069605A1 Electrically operated stapling device
01/01/1980US4181340 Lifting device for jar lid assemblies
01/01/1980CA1069159A Vacuum switch and electro-magnetic coil assembly therefor
12/1979
12/25/1979CA1068563A Fuel pump injector
12/11/1979US4178573 Electrically operated device and valving mechanism employing same
12/11/1979US4178029 Ferrous object retriever
12/04/1979US4177441 Electromagnetic structure for a vital relay
12/04/1979US4177440 Moving-armature electromagnetic device
12/04/1979CA1067566A1 Electromagnet
11/1979
11/28/1979EP0005640A1 Print wire solenoid
11/27/1979US4175590 Electric valves
11/13/1979USRE30150 Inductor drive means
11/06/1979US4173775 Selective excitation of coils comprising a superconducting magnet
10/1979
10/30/1979US4173031 Solenoid valve current-programme control device
10/30/1979US4173004 Magnetic latch device for a clapper type contactor
10/30/1979CA1065394A1 Drive circuit
10/23/1979US4172242 Electromagnet for use with a brake or the like
10/23/1979US4172241 Electromagnetic actuation device comprising a magnetic holding mechanism, particularly for the actuation of high-speed circuit breakers
10/16/1979US4170887 Inductor for working metals by pressure of pulsating magnetic field
10/16/1979CA1064572A1 Switchable permanent magnetic holding devices
10/02/1979US4169364 Apparatus for magnetic forming of metals
10/02/1979CA1063724A1 Magnetic domain bias field assembly
09/1979
09/04/1979US4167030 Protective circuit for an electronic switching amplifier in series with an electromagnet
09/04/1979US4166991 Solenoid
08/1979
08/28/1979US4166262 Solenoid
08/28/1979US4166261 Electromagnet having a movable armature and a plurality of energizing sources
08/28/1979CA1061393A1 Electromagnetic devices
08/28/1979CA1061392A1 Electromagnetic devices
08/22/1979EP0003710A1 Process for preparing ferrite powders and powders or permanent magnets so produced
08/14/1979US4164777 Superconducting switch incorporating a steering diode
08/14/1979US4164722 Electromagnetic actuator with torque-compensating poles
08/14/1979US4164721 Magnetic actuator for a shutter mechanism
08/14/1979US4164203 Fuel pump injector
08/07/1979US4163962 Universal impedance power apparatus
07/1979
07/24/1979US4162471 Electromagnet lifting device
07/17/1979US4161306 Electro-magnetic valve
07/10/1979CA1058282A1 A-c magnet with a shorting ring
07/10/1979CA1058266A1 Bistable electromagnetic actuator
06/1979
06/12/1979US4157963 Magnetic device for treatment of calcareous liquids
06/12/1979US4157873 Dot printing apparatus
06/05/1979US4157521 Rotary solenoid
06/05/1979US4157520 Magnetic flux shifting ground fault trip indicator
05/1979
05/22/1979US4155661 Mounting arrangement for electromagnet driving structures in a mosaic needle printer head
05/16/1979EP0001872A1 Electromagnetic device, such as a relay, with a movable armature having a centre pole face and two end pole faces
05/15/1979US4155021 Segmental permanent-magnet stator magnet
05/08/1979US4153890 Coil compressed solenoids subassembly
05/08/1979US4153889 Method and device for generating a magnetic field of a potential with electric current components distributed according to a derivative of the potential
05/08/1979US4153151 Device for arranging ferromagnetic components at preset distance from one another