| Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
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| 05/26/1987 | US4668930 Transformer coil construction |
| 05/26/1987 | CA1222294A1 Safety transformer |
| 05/21/1987 | DE3540927A1 Two-limb core laminate having latching of two laminate parts |
| 05/21/1987 | DE3540777A1 Electronic additional circuit for AC converters |
| 05/21/1987 | DE3540425A1 Process for decontaminating transformers |
| 05/21/1987 | DE3539737A1 Winding for transformers and inductor coils |
| 05/20/1987 | EP0222687A2 Current transformer for a protective switch |
| 05/20/1987 | EP0222426A1 Method of manufacturing a transformer with coaxial coils |
| 05/19/1987 | US4667132 Electronic transformer system for neon lamps |
| 05/14/1987 | DE3539518A1 Connecting elements, especially connecting tabs for sheathed electrical components, component groups or integrated circuits which are arranged on a carrier, especially surface-acoustic-wave (SAW) filters |
| 05/06/1987 | EP0221028A1 A process for the decontamination of apparatus or other materials contaminated by PCB or other toxic and noxious substances |
| 05/06/1987 | EP0220263A1 Electrical connector arrangement for underwater installations |
| 05/05/1987 | US4663605 Clamping means for the core and coil assembly of an electric transformer |
| 05/05/1987 | US4663604 Coil assembly and support system for a transformer and a transformer employing same |
| 05/05/1987 | US4663603 Winding system for air-cooled transformers |
| 05/05/1987 | US4662572 Method of forming inductor coils with mechanically coupleable bobbins |
| 05/05/1987 | US4662410 Apparatus for filling electric apparatuses with insulating oil under vacuum |
| 04/30/1987 | DE3533323A1 Inductor coil having at least one iron core whose cross-section is in the form of a circular ring |
| 04/28/1987 | US4661792 Apparatus for mounting printed circuit boards |
| 04/23/1987 | DE3537437A1 Inductor coil having at least one iron core of circular cross-section |
| 04/22/1987 | EP0218708A1 Circuit for producing a high direct voltage from a medium frequency alternating voltage |
| 04/21/1987 | US4660014 Electromagnetic pulse isolation transformer |
| 04/21/1987 | US4659981 Input transformer circuit |
| 04/21/1987 | US4658799 Ignition coil assembly for internal combustion engines |
| 04/21/1987 | CA1220827A2 Toroidal electrical transformer and method of producing same |
| 04/15/1987 | CN85205415U Fibre-glass coil pipe with rubber lining macerated with phenolies |
| 04/15/1987 | CN85108411A Reverse self-induction leakage circuit for pulse transformer |
| 04/14/1987 | US4658264 Folded RF marker for electronic article surveillance systems |
| 04/14/1987 | US4658091 Inductor housing |
| 04/08/1987 | EP0217219A1 Miniature induction coil and method of making the same |
| 04/08/1987 | EP0217110A1 Bobbin of insulating material with a moulded electric coil, and method of making the same |
| 04/08/1987 | EP0217103A1 Transformer with a moulded insulative encapsulation |
| 04/07/1987 | US4656452 Transformer telephone influence tractor core shunt |
| 04/07/1987 | US4656450 Transformer and ferrite core structure therefor |
| 04/02/1987 | DE3534843A1 Winding arrangement for transformers and inductors (chokes) having an upper voltage winding consisting of in each case at least one main winding and one tapped winding |
| 04/02/1987 | DE3533649A1 Transformer |
| 04/01/1987 | EP0216590A1 Magnetic field screens |
| 04/01/1987 | EP0216500A1 Electromagnetic induction apparatus |
| 04/01/1987 | EP0216249A1 High-tension winding consisting of axially superposed disc coil pairs |
| 03/31/1987 | US4654775 Transformer winding arrangement for a television apparatus |
| 03/31/1987 | US4653178 Method for the manufacture of a layer winding |
| 03/26/1987 | DE3533882A1 High-current (high-power) layer winding for high-power transformers and inductors, consisting of conductors which are electrically connected in parallel |
| 03/26/1987 | DE3532818A1 Coil former consisting of insulating material with a potted electrical coil, and a method for its production |
| 03/25/1987 | EP0215728A1 High tension switchgear installation encapsulated by metal and insulated by pressurized gas, with an instrument transformer |
| 03/25/1987 | EP0215286A1 High power pulse transformer for short high-voltage and/or high-current pulses |
| 03/25/1987 | CN86107085A Power transformer cooling device |
| 03/24/1987 | US4652975 Mounting arrangement for circuit breaker current sensing transformers |
| 03/24/1987 | US4652846 Small transformer with shield |
| 03/24/1987 | US4652810 Subminiature current transformer |
| 03/24/1987 | US4651412 Electric transformer and method for the manufacture of the transformer |
| 03/19/1987 | DE3532643A1 Drainage coil for a high-current converter transformer |
| 03/18/1987 | EP0214946A2 Adjustable light base and transformer housing |
| 03/18/1987 | EP0214305A1 Process for the production of a laminate of thinamorphous alloy strip and a core made of thin amorphous alloy strip |
| 03/18/1987 | CN86106038A Miniature inductor and method of manufacturing same |
| 03/18/1987 | CN86103925A Liquid cooled static excitation system for a dynamoelectric machine |
| 03/17/1987 | US4651254 Inductive igniters with secondary coil |
| 03/17/1987 | US4649755 Sensor for magnetizable materials |
| 03/17/1987 | US4649640 Winding, lamination |
| 03/17/1987 | US4649639 Method of building toroidal core electromagnetic device |
| 03/17/1987 | CA1219327A1 Cooling system for communications equipment |
| 03/11/1987 | EP0213837A2 Modular electronic temperature controller |
| 03/10/1987 | US4649361 Electrical coil form with connector sleeves |
| 03/10/1987 | US4648929 Magnetic core and methods of consolidating same |
| 03/10/1987 | CA1219047A1 Cover assembly for electrical connections of a transformer |
| 03/04/1987 | EP0212812A1 Chip inductor and method of producing the same |
| 03/04/1987 | EP0212609A1 Electric coil |
| 03/03/1987 | US4646803 Case for protecting a magnetic core |
| 03/03/1987 | CA1218715A1 Cellulose-free transformer coil structure and method |
| 02/25/1987 | EP0211125A1 Device for reducing surge voltages in interrupting energizing coils with ferromagnetic cores, and coils provided with such a reducing device |
| 02/24/1987 | US4646048 Core and winding assembly with relieved core edges and method of manufacture thereof |
| 02/24/1987 | US4646047 Electrical coil form with connector pins |
| 02/24/1987 | US4646045 Aperture sized disc shaped end caps of a ferromagnetic shield for magnetic resonance magnets |
| 02/24/1987 | CA1218434A1 Electric high-voltage bushing |
| 02/24/1987 | CA1218429A1 Transformer construction and method of manufacturing same |
| 02/24/1987 | CA1218283A1 Magnetic core and method of producing the same |
| 02/19/1987 | DE3528698A1 Transformer with liquid cooling and with a gas cushion which compensates for thermal expansion |
| 02/18/1987 | CN86105627A Invariable inductance and its manufacturing process |
| 02/17/1987 | US4644314 Porcelain clad current transformer |
| 02/12/1987 | DE3625964A1 Transformer |
| 02/12/1987 | DE3528803A1 Ignition coil for multiple spark plug ignition systems, without distributors, of internal-combustion engines, especially for motor vehicles |
| 02/12/1987 | DE3527442A1 Method and device for modifying the quality factor of a coil |
| 02/10/1987 | US4642596 Miniaturized transformer |
| 02/05/1987 | DE3526560A1 Inductive sensor |
| 02/04/1987 | EP0210691A1 Inductance device comprising a ferromagnetic core with an airgap |
| 02/04/1987 | EP0146585B1 Inductive element, particularly transformer |
| 02/04/1987 | CN85109646A Improved toroidal transformer and machines and methods for making same |
| 02/03/1987 | US4640985 Snap-fitting transformer terminal cover |
| 01/29/1987 | DE3526195A1 Inductive component |
| 01/28/1987 | EP0209742A1 Current-compensated radio interference suppression choke |
| 01/27/1987 | US4639707 Transformer with toroidal magnetic core |
| 01/27/1987 | US4639705 Transformer with gapless core on support |
| 01/27/1987 | US4639696 Delay line |
| 01/27/1987 | US4639282 Insulation of metallic surfaces in power transformers |
| 01/27/1987 | US4638554 Method of constructing transformers using a transformer-coil winding wheel |
| 01/27/1987 | CA1217242A1 Welding system |
| 01/21/1987 | EP0209500A1 Method and arrangement at a transformer |
| 01/21/1987 | EP0209415A1 Inductive sensor for measuring a current |
| 01/20/1987 | US4638282 Wire cross-over arrangement for coil assembly |
| 01/08/1987 | DE3621689A1 Core having three limbs for three-phase transformers |
| 01/07/1987 | EP0207386A1 Supporting spool for electrical windings |