Patents for H01F 13 - Apparatus or processes for magnetising or demagnetising (2,363)
07/1986
07/15/1986US4600555 Method of producing a cylindrical permanent magnet
07/08/1986US4599673 Degaussing system arrangements
06/1986
06/03/1986US4592889 Method and apparatus for the pressing and alignment of radially oriented toroidal magnets
05/1986
05/28/1986EP0182160A1 Equipment apt to emit a sequence of magnetic pulses of substantially semicircular shape
05/27/1986US4591943 Apparatus for demagnetizing a chuck
05/21/1986EP0181597A1 Method of producing permanent magnet
05/07/1986EP0180272A1 Method for producing a multipolar permanent magnetic field configuration when manufacturing a cathode ray tube and device for carrying out this method
03/1986
03/26/1986EP0174966A1 Multipolar magnetization device.
03/25/1986US4578661 Method of manufacturing a cathode ray tube and device for carrying out this method
03/19/1986EP0174322A1 Multipolar magnetization device.
03/04/1986US4574211 Brushless D.C. motor
10/1985
10/10/1985WO1985004512A1 Multipolar magnetization device
08/1985
08/29/1985WO1985003801A1 Multipolar magnetization device
08/14/1985EP0151144A1 Improvements in or relating to magnetic assemblies.
07/1985
07/16/1985US4529954 Magnetizing apparatus for anisotropic permanent magnets
06/1985
06/26/1985EP0146268A1 Magnet for catching thereon foreign bodies within the reticulum of ruminant, and method and instrument for manufacture thereof
06/11/1985US4523250 Magnetic chuck control system
05/1985
05/29/1985EP0143091A1 An induction heater for heating annular articles, particularly roller-bearings
02/1985
02/12/1985US4499444 Desensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
02/05/1985CA1182164A1 Apparatus for influencing electron beam movement
01/1985
01/31/1985WO1985000335A1 Improvements in or relating to magnetic assemblies
01/29/1985US4497011 Switching apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets
01/15/1985US4494028 Integral coaxial commutation and rotor magnets and apparatus and method for making same
01/09/1985EP0130767A1 Improvements in or relating to magnetic assemblies
12/1984
12/27/1984EP0129335A1 Desensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
12/27/1984EP0129052A1 Method of producing cylindrical permanent magnet
12/19/1984EP0128508A2 Method and apparatus for producing anisotropic magnets
12/18/1984US4488962 Magnetic filtering apparatus
11/1984
11/06/1984US4480739 Method and apparatus for separating, ordering and feeding metallic workpieces
10/1984
10/30/1984CA1176814A1 Method of improving magnets
10/17/1984EP0121919A2 Method of furnishing a construction element with a layer
09/1984
09/11/1984US4471403 Biasing and fast degaussing circuit for magnetic materials
09/04/1984US4470094 Demagnetizing apparatus and method
09/04/1984US4470031 Multipolar magnetizing device for permanent magnets
08/1984
08/29/1984EP0117250A1 Method of adjusting a trip device with permanent magnet
08/21/1984US4467388 Electromagnetic chuck power supply and controller
07/1984
07/24/1984US4462059 Demagnetizing power source
04/1984
04/24/1984US4444550 Permanent magnet mold apparatus for injection molding plastic bonded magnets
03/1984
03/13/1984CA1163673A1 Method and device for multipolar magnetisation of a strip material
03/07/1984EP0101922A1 Method and device for treating ferromagnetic materials
01/1984
01/17/1984US4426672 Demagnetizer
12/1983
12/27/1983US4423460 Bulk tape eraser with rotating magnetic field
11/1983
11/01/1983CA1156353A1 Color television receiver degaussing circuit
10/1983
10/11/1983US4409581 Process and apparatus for magnetizing, on both sides, the surfaces of bodies to be magnetized
08/1983
08/30/1983US4402032 Electromagnet power supply and demagnetizer
08/16/1983US4399422 Magnetizing apparatus
06/1983
06/28/1983US4390815 Apparatus for influencing electron beam movement
06/14/1983US4388666 Demagnetizer for use in vehicles
05/1983
05/18/1983EP0078823A1 Apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets
05/17/1983US4384313 Process for demagnetizing components by alternating magnetic fields of varying intensity
04/1983
04/26/1983US4381492 Apparatus for magnetizing multipolar permanent magnets
04/05/1983US4379276 Process and apparatus for the multipolar magnetization of a material in strips
03/1983
03/29/1983US4378581 Demagnetizing apparatus for use in vehicles
03/17/1983WO1983000944A1 Magnetizing apparatus
01/1983
01/25/1983US4370693 Demagnetizing apparatus for a workpiece holding electromagnet
01/05/1983EP0068988A1 Locking mechanisms and method of magnetizing a locking magnet therefor
12/1982
12/08/1982EP0066348A2 Method for producing magnets
11/1982
11/25/1982WO1982004160A1 Switching apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets
11/23/1982US4360854 Demagnetizing, variable frequency
11/16/1982US4359765 Magnetizing system
11/16/1982US4358886 Method of mounting an azimuth indicator in an automobile
11/16/1982CA1135658A1 Gas diffuser, aerator, or sparger apparatus and method
10/1982
10/12/1982US4354218 Process and apparatus for multi-polar magnetization of annular permanent magnets
09/1982
09/01/1982EP0009481B1 Key, method of producing same and process and apparatus for use in the method for magnetising the key
07/1982
07/28/1982EP0056717A2 Magnetic filtration apparatus
07/27/1982CA1128655A1 Method and apparatus for automatically inscribing magnetic marks on a wireline
05/1982
05/04/1982US4327692 Apparatus for controlling the de-excitation time of electromagnetic devices, in particular electromagnetic injection valves in internal combustion engines
04/1982
04/27/1982US4327346 Anisotropic polymeric magnet in the tubular form and process for producing the same
04/27/1982US4326908 Laminating, winding, magnetization
04/20/1982CA1122264A1 Method of manufacturing a colour display tube and colour display tube manufactured according to said method
04/06/1982US4323933 Device for erasing a record carrier recorded by magnetic fields in visually readable form
03/1982
03/30/1982CA1120996A1 Magnetizing method for use with a cathode ray tube
02/1982
02/09/1982US4314594 Reducing magnetic hysteresis losses in cores of thin tapes of soft magnetic amorphous metal alloys
01/1982
01/12/1982US4310820 Magnetizing device
12/1981
12/15/1981US4306269 Magnetic chuck control system
12/01/1981CA1113577A1 Switchable magnetic device and method of manufacturing same
10/1981
10/13/1981US4295078 Color television receiver degaussing circuit
08/1981
08/26/1981EP0034552A1 Method and device for multipole magnetization of a sheet material
08/25/1981US4286304 Degaussing arrangement for maser surrounded by magnetic shielding
07/1981
07/29/1981EP0032688A1 Device for separating and orienting metallic workpieces stacked and hooked on each other
06/1981
06/25/1981WO1981001769A1 Magnetic chuck control system
05/1981
05/12/1981US4266328 Developing roll for use in electrostatic developing apparatus employing magnetic particles
04/1981
04/21/1981CA1099778A1 Demagnetizing methods and apparatus
04/14/1981CA1099406A1 Reducing magnetic hysteresis losses in thin tapes of soft magnetic amorphous metal alloys
03/1981
03/04/1981EP0024307A1 Device for compensating the magnetic field of disturbance of an object by means of a magnetic self-protection arrangement
02/1981
02/17/1981US4251791 Magnetic base
02/17/1981CA1095978A1 Magnetizing and demagnetizing tool
02/10/1981US4250128 Processes and apparatuses for preparing permanent magnet stators
02/03/1981CA1095168A1 Bubble memory package
01/1981
01/07/1981EP0021274A1 Demagnetizing device
12/1980
12/09/1980US4238752 Magnetizing device
12/02/1980US4237518 Nonelectric magnetizer and demagnetizer
10/1980
10/15/1980EP0016960A1 Anisotropic polymeric magnet in the tubular form and process for producing the same
09/1980
09/09/1980US4221316 NAB Tape cartridge eraser and splice finder
09/02/1980US4220897 Method of manufacturing a color display tube and color display tube manufactured according to said method
08/1980
08/05/1980CA1083228A1 Method for substantially eliminating residual magnetism in pipe-blanks for welded steel pipe longitudinally seam-welded from the inside
07/1980
07/22/1980CA1082301A1 Method of preparing and installing cobalt-rare earth permanent magnets, and the product of the method
06/1980
06/03/1980US4205430 Method of treating high energy magnets for improving their performance
06/03/1980CA1078916A1 Permanent magnet pulse generator and method of forming and assembly
05/1980
05/14/1980EP0010644A1 Erasing device for a record carrier which produces visually recognisable recordings by using a magnetic recording element
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