Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
07/1986
07/23/1986EP0187771A1 High frequency transformer.
07/23/1986CN86100498A Subminiature current trasformer
07/23/1986CN85100873A Heavy current transformer whose error can be measured by low current
07/22/1986US4602236 Laminated ballast core
07/22/1986US4602235 Transformer assembly with terminal plates in support
07/22/1986US4602122 Automatically-insertable case suitable for wire-wound magnetic cores
07/22/1986US4601765 Powdered iron core magnetic devices
07/22/1986CA1208324A1 Multistranded component conductor continuously transposed cable
07/17/1986WO1986004118A1 Pulsed plasma ignition - an optimized multiple pulse cd ignition using an optimized voltage doubling ignition coil
07/16/1986CN86100229A Self-controlled variable inductor with air gaps
07/16/1986CN85108084A Inductance element and method of manufacturing the same
07/15/1986US4600911 Elliptically shaped magnetic core
07/15/1986US4599985 Ignition coil for multi-cylinder internal combustion engine
07/08/1986US4599595 Laminated iron core for transformers, choke coils and the like
07/08/1986US4599594 Electrical inductive apparatus
07/08/1986CA1207213A1 Dual valve pressure relief device
07/03/1986WO1986003883A1 Process for reducing the transmission error of current transformers, and precision current transformers
07/02/1986EP0185750A1 Power transformer for use with very high speed integrated circuits
07/02/1986CN85109230A Coil and method for its manufacture
07/02/1986CA1206940A Power supply housings for exterior light apparatus
06/1986
06/24/1986US4596974 Transformer comprising coaxial coil formers
06/24/1986CA1206579A1 Support for electrical conductors
06/17/1986US4595901 Inductance device with bonded metal foil electrodes
06/17/1986US4595843 Low core loss rotating flux transformer
06/10/1986US4594475 Electrical bushing having a convertible central conductor
06/10/1986US4594295 Transformer core
06/10/1986US4593532 Evaporation-cooled gas insulated electrical apparatus
06/04/1986EP0126734B1 Ignition coal for ignition devices of internal combustion engines
06/03/1986US4593261 Device for cooling a magnet system
05/1986
05/28/1986EP0181955A2 Electric connector
05/27/1986CA1205155A1 Electric coil assembly
05/27/1986CA1205154A1 Neutral point plate of three-phase transformer for large secondary currents
05/22/1986WO1986003052A1 Folded rf marker for electronic article surveillance systems
05/20/1986US4590453 Autotransformer with common winding having oppositely wound sections
05/20/1986US4589587 Process for producing a tank, particularly for transformers
05/13/1986US4588974 Coil assembly having clamped and bonded contacts
05/13/1986US4588973 Coil bobbin having novel means for terminating fine wires
05/13/1986US4588972 Electromagnetic induction apparatus with cooling grooves
05/13/1986US4588971 Electric transformer with annular coil forms
05/13/1986CA1204490A1 Noise-reduction device for stationary induction apparatus
05/13/1986CA1204470A1 Modified deflection yoke coils having shootback windings
05/09/1986WO1986002772A1 Transformer tank with cooling by concentric and radial radiators and with reduced capacity
05/06/1986US4587606 High voltage transformer and rectifier arrangement
05/06/1986US4587507 Core of a choke coil comprised of amorphous magnetic alloy
05/06/1986US4587506 Safety transformer
04/1986
04/30/1986EP0179259A1 Bobbin
04/29/1986US4586016 High voltage transformer for deflection of electron beams
04/29/1986US4586015 Transformer with a surface shield layer
04/23/1986EP0178456A1 Bobbin
04/22/1986US4584551 Transformer having bow loop in tubular winding
04/22/1986US4584550 Contact piece for establishing delta circuits on three-legged transformers
04/22/1986CA1203588A1 Continuously transposed conductor
04/16/1986EP0177760A1 Beads attenuator suppressing unwanted radiation, in particular in the short wave and ultra short wave range
04/16/1986EP0177759A1 Electronic component, in particular for a chip inductor
04/15/1986US4583099 Resonant tag circuits useful in electronic security systems
04/15/1986US4583068 Low profile magnetic structure in which one winding acts as support for second winding
04/15/1986CA1203298A1 Electric coil
04/08/1986US4581598 Segmented toroidal air-core transformer
04/08/1986US4581573 Static converter transformer with harmonic filter
04/08/1986US4581477 Gas-insulated electrical apparatus
04/01/1986US4580122 Ignition coil for ignition systems of internal combustion engines
04/01/1986US4580004 Cover assembly for electrical connections of a transformer
04/01/1986CA1202697A1 Coil structure for cellulose-free transformer coils
03/1986
03/26/1986EP0175512A1 A transformer
03/26/1986EP0175461A1 Coil assembly
03/25/1986US4578664 Radio interference suppression choke with a low leakage field
03/19/1986EP0174491A1 Ignition coil of an ignition apparatus for an internal-combustion engine
03/19/1986EP0174385A1 Holder for electrical conductors
03/18/1986US4577175 Transformer with fluid cooled windings
03/11/1986CA1201628A1 Method of coating an inductive stabilization ballast with an insulating layer, and inductive stabilization ballast coated with an insulating layer by means of this method
03/05/1986EP0173100A2 High power ignition transformer
03/05/1986EP0173048A1 Electromagnetic device with protection against overheating
03/04/1986US4574261 Bakeable electromagnets
03/04/1986US4573757 For use with a tank-type electrical transformer
02/1986
02/27/1986WO1986001333A1 Low profile magnetic structure in which one winding acts as support for second winding
02/25/1986US4573101 LC Composite component
02/25/1986CA1201181A1 Start-up circuit for negative inductance multiplier
02/25/1986CA1201180A1 Negative inductance multiplier circuit including temperature compensation
02/19/1986EP0171688A1 Method of manufacturing a sheet winding and sheet winding manufactured according to this method
02/18/1986US4571669 Transformer with rectifier
02/18/1986US4571570 Winding for static induction apparatus
02/18/1986US4571569 Mounting for an especially current-compensated, ferrite ring-core choke
02/11/1986US4570043 Dielectric fluids and apparatus incorporating such fluids
02/05/1986EP0170170A1 Layer winding for transformers
02/05/1986EP0170054A1 Insulating oil for electrical devices
02/05/1986EP0169922A1 Insulating member for high-voltage devices
02/05/1986EP0169921A1 Insulating paper
02/04/1986US4568903 Mounting for ignition module
02/04/1986US4568902 Contact piece for air-cooled transformers having conductive lines
01/1986
01/30/1986WO1986000749A1 High frequency transformer
01/29/1986EP0169226A1 Improvements in electrical capacitors.
01/28/1986CA1199842A1 Flexible thermally stable tapes containing a high flash point solventless insulating varnish
01/21/1986US4565988 Electric coil with secured cores
01/21/1986US4565746 Iron core for a stationary induction apparatus
01/15/1986EP0167896A1 Disc coil winding for transformers
01/15/1986EP0167641A1 Method of constructing a vacuum tight and oil-tight seal for a transformer structure, and seal made in this way
01/08/1986EP0166952A1 High-current transformer with indirect adjustment of tension by an intermediate circuit
01/08/1986EP0166951A1 Transformer with a high-current bushing assembly
01/07/1986US4562702 Evaporation cooled gas insulated electrical apparatus
01/07/1986CA1199081A1 Electrical insulating system