Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
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01/05/1983 | EP0068745A1 Ferrite cores and devices using such cores |
01/05/1983 | EP0068158A1 Electric transformer |
01/04/1983 | US4367512 Transportable power supply substation |
12/28/1982 | US4366520 Differential transformer core for pulse currents |
12/28/1982 | CA1138544A1 Electrical inductive apparatus |
12/28/1982 | CA1138541A1 Modular air core coil assembly |
12/21/1982 | US4365224 Core lamination for shell-type cores, particularly for transformers |
12/21/1982 | CA1138084A1 Electrostatic shield |
12/14/1982 | US4364020 Amorphous metal core laminations |
12/14/1982 | US4363981 Means to reduce frictional heating of a superconducting winding at an interface with its support structure |
12/14/1982 | US4363773 Superconductive electromagnet apparatus |
12/14/1982 | CA1137576A1 Transformer winding |
12/09/1982 | WO1982004348A1 Television receiver saturating core regulated power supply with permanent magnet biasing |
12/07/1982 | US4363014 Snap-on cover for bobbin-wound coil assembly |
12/07/1982 | US4363013 Winding structure for static electrical induction apparatus |
12/07/1982 | US4363012 Winding structure for static electrical induction apparatus |
12/01/1982 | EP0065612A2 Application of core plates to magnetic circuits |
12/01/1982 | EP0018378B1 Inductive coil module |
11/30/1982 | US4361823 Core laminations for shell-type cores, especially for transformers |
11/24/1982 | EP0065147A1 Method of forming electric coils |
11/23/1982 | CA1136233A1 Structure for preventing winding collapse |
11/16/1982 | CA1135805A1 High voltage seismic bushing |
11/16/1982 | CA1135494A1 Ultra pure tetrachloroethylene dielectric fluid |
11/09/1982 | CA1135337A1 High frequency high voltage power supply |
11/02/1982 | US4357587 Core laminations, particularly for transformers |
10/26/1982 | US4356468 Transformer with magnetic screening foils |
10/26/1982 | US4356344 Metal-plastic header assembly |
10/26/1982 | US4356237 Porous encapsulating composition for electrical apparatus |
10/26/1982 | CA1134455A1 Doughnut-type transformer for resistance butt welding |
10/19/1982 | CA1134015A1 Inductive coil module |
10/14/1982 | WO1982003492A1 Circuit breaker having multiple finger contact band |
10/13/1982 | EP0062510A1 An inductor |
10/12/1982 | US4354154 Measuring transformer for high-voltage switch-gear with metal encapsulation |
10/12/1982 | US4353798 Apparatus for removing polychlorinated biphenyls from contaminated transformer dielectric liquid |
10/12/1982 | US4353611 Bushing well stud construction |
10/06/1982 | EP0061608A1 Air-cooled dry type transformer or inductance |
10/06/1982 | EP0061521A1 Shielding element for yokes of iron cores in transformers and in inductance coils |
10/05/1982 | US4353052 Iron core with planished clamping surfaces for electric machine, such as transformer, choke, voltage stabilizer or the like |
09/29/1982 | EP0061225A1 Stabilization ballast for operating a gas and/or vapour discharge lamp |
09/28/1982 | US4352134 Magnetic head assembly with corrosion resistant conductive wire |
09/28/1982 | US4352081 Compact trans core |
09/28/1982 | US4352080 Ferrite core |
09/28/1982 | US4352079 High voltage ignition transformer |
09/28/1982 | US4352078 Combination static plate and liquid distribution manifold for electrical inductive apparatus |
09/21/1982 | US4350838 Ultrasonic fluid-atomizing cooled power transformer |
09/15/1982 | EP0059867A2 Thin insulating sheet |
09/15/1982 | EP0059866A2 Thin insulating sheet |
09/14/1982 | US4349801 Single-phase transformer with windings cast in casting resin |
09/14/1982 | CA1131745A1 Ignition coil |
09/14/1982 | CA1131725A1 Magnetic core structure |
09/07/1982 | US4347659 Method of making stick wound coils |
09/07/1982 | CA1131006A1 Atomized dielectric fluid composition with high electrical strength |
09/01/1982 | EP0059117A1 Method and machine for making a wound magnetic circuit |
09/01/1982 | EP0058905A1 Transformer or inductance cooled by insulating liquid, method and device for manufacturing them |
08/31/1982 | US4347493 Coil assembly |
08/31/1982 | US4347490 Low profile transformer |
08/31/1982 | CA1130907A1 High-voltage installation |
08/31/1982 | CA1130544A1 Method and apparatus for the optimum stabilization of transformer and choke coil windings |
08/25/1982 | EP0058232A1 Pancake coil winding with interleaved turn single or double coils |
08/24/1982 | US4346361 Cooling duct arrangement for transformer windings |
08/24/1982 | CA1130402A1 Shear resisting cable with transposed strands and method of its manufacture |
08/17/1982 | US4345232 Non-metallic core band |
08/17/1982 | US4345231 Support member |
08/17/1982 | US4345229 Amorphous metal ballasts and reactors |
08/17/1982 | CA1129953A1 High-voltage transformer |
08/03/1982 | CA1128983A1 Transportable power supply substation |
07/28/1982 | EP0056580A1 Winding for an air-cooled dry transformer or reactor having spacers in the air channels |
07/27/1982 | US4341923 Coated asbestos insulation transformer wires |
07/27/1982 | CA1128637A1 Ignition coil cover |
07/21/1982 | EP0056272A2 Method for preparation of a laminated iron core and laminated iron core of an electric device |
07/20/1982 | CA1128154A1 Reactor |
07/13/1982 | US4339736 Convergence unit for cathode-ray tube |
07/13/1982 | US4338969 Through fault pressure filter for fault pressure relay |
07/13/1982 | CA1127745A1 Vapor-cooled electrical apparatus |
07/06/1982 | US4337820 Leak detector for vaporization cooled transformers |
07/06/1982 | US4337569 Method of making integrally formed transformer cooling ducts |
06/29/1982 | US4337449 Magnetic transducer with a movable magnet |
06/29/1982 | CA1126797A1 Core mounting for solenoidal electric field lamps |
06/22/1982 | US4336302 Insulating tape for fabricating an insulating sleeve for electric conductors impregnated with a thermo-setting epoxy resin/acid anhydride mixture |
06/16/1982 | EP0053691A1 Choke for high current transformers |
06/16/1982 | EP0053644A1 Method of manufacturing a coil on an inductance or transformer core, and winding heads constructed by this method |
06/15/1982 | US4335423 Transformer |
06/15/1982 | US4335367 Blend of epoxy resins which are heat cured |
06/15/1982 | CA1125873A1 Coil supporting device for use in stacking toroidal coils, and a loading coil assembly |
06/08/1982 | US4334208 Coil former for a transformer |
06/08/1982 | US4334206 Ferrite core type transformer |
06/08/1982 | US4333900 Process for manufacture of high voltage transformers and the like |
05/25/1982 | CA1124344A1 Core with step lap joints |
05/25/1982 | CA1124343A1 Electrical transformer with composite magnetic core |
05/25/1982 | CA1124342A1 Electrical winding |
05/25/1982 | CA1124263A1 Dielectric liquids |
05/19/1982 | EP0051825A2 Method of manufacturing a molded coil |
05/18/1982 | US4330773 Coil form with heat switch |
05/18/1982 | CA1123925A1 Protection device for insulated parts, and electromagnetic apparatus thus protected |
05/11/1982 | US4329674 High voltage transformer for AC-DC converter |
04/27/1982 | US4327349 Transformer core having charge dissipation facility |
04/27/1982 | US4327311 Inductor-capacitor impedance devices and method of making the same |
04/27/1982 | CA1122666A1 Inductive coupler |
04/27/1982 | CA1122665A1 Ring transformer for resistance butt welders |
04/21/1982 | EP0050091A1 Winding for electric machines or appliances |