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