Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
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11/14/1984 | EP0124809A1 Inductive element |
11/13/1984 | US4482945 Transformer for low distortion rectifier system |
11/13/1984 | US4482880 Iron core for three-phase electromagnetic induction machine |
11/13/1984 | US4482879 Transformer core cooling arrangement |
11/13/1984 | CA1177945A1 Transformer cooling structure |
11/13/1984 | CA1177916A1 Transformer with a controlled flow of cooling liquid |
11/13/1984 | CA1177628A1 Method of making a transformer or like core from amorphous strip metal |
11/06/1984 | US4480377 Method of making an ignition coil core |
11/06/1984 | CA1177546A1 Inductor and process of manufacturing the same |
10/30/1984 | CA1177127A1 Miniaturized transformer construction |
10/24/1984 | EP0122850A1 VHF power transformer |
10/24/1984 | EP0122821A1 Fixing device of an object, especially a transformer, to a base |
10/24/1984 | EP0122377A1 Inductance or small transformer |
10/23/1984 | US4479104 Transformer core having charge dissipation facility |
10/23/1984 | CA1176721A2 Microminiature palladium oxide gas detector and method of making same |
10/23/1984 | CA1176704A1 High-voltage transformer |
10/17/1984 | EP0122133A1 Electrical winding |
10/17/1984 | EP0121903A1 Transformer |
10/17/1984 | EP0121839A1 Transformer with ferromagnetic circuits of unequal saturation inductions |
10/17/1984 | EP0121677A1 Inductance, small transformer or similar apparatus |
10/17/1984 | EP0121676A1 Inductance or small transformer, particularly as a series reactor for electric discharge lamps |
10/17/1984 | EP0121535A1 Transformer construction |
10/16/1984 | US4477791 Winding assembly for fluid-cooled electrical inductive apparatus |
10/16/1984 | US4477790 Electrical inductive apparatus with cooling channels |
10/16/1984 | CA1176324A1 Laminated grid and web magnetic cores |
10/10/1984 | EP0121469A1 Pressure relief device |
10/10/1984 | EP0121267A1 Gas-insulated electrical apparatus |
10/09/1984 | USRE31704 Transformer having novel multiple winding and support structure and method of making same |
10/02/1984 | US4475097 Flyback transformer |
09/25/1984 | US4473811 Single bobbin transformer having multiple delink windings and method of making same |
09/19/1984 | EP0118825A2 Sheet-wound transformer |
09/19/1984 | EP0118454A1 Ignition coil for internal combustion engines. |
09/12/1984 | EP0118269A1 Electrical transformer |
09/12/1984 | EP0118198A1 Magnets |
09/11/1984 | US4471337 Conductor bundles for the coils of dry inductors |
09/11/1984 | US4471336 Inductive apparatus |
09/11/1984 | US4471335 Transformer or reactor having a winding formed from sheet material |
09/11/1984 | US4471332 Static induction apparatus |
09/11/1984 | CA1174306A1 Shunt inductance coil |
09/11/1984 | CA1174305A1 Insulation of a coil for electric apparatus |
09/05/1984 | EP0117764A1 Coil device |
09/05/1984 | EP0117515A1 Reactor having a plurality of coaxially disposed windings |
09/05/1984 | EP0117460A1 Three-phase choke with five-legged magnetic core |
09/05/1984 | EP0117349A2 Cooling apparatus for an electrical transformer |
09/04/1984 | US4469269 Method of manufacturing the peripheral wall of a tank for an oil-immersed electric apparatus |
08/30/1984 | WO1984003253A1 Wire coil assembly for matrix print head and manufacturing method |
08/28/1984 | CA1173581A1 Electrical insulation body |
08/22/1984 | EP0116070A1 Welding system |
08/21/1984 | US4467399 Power supply packaging arrangement |
08/21/1984 | US4467306 High voltage current transformer having coils immersed in dielectric fluid |
08/21/1984 | US4467305 Gas/vapor cooled electromagnetic induction machine |
08/21/1984 | US4467269 Start-up circuit for negative inductance multiplier |
08/21/1984 | US4466681 Soldering lug for mounting electrical conducting wires |
08/21/1984 | CA1173125A1 Laminated core of transformer |
08/10/1984 | EP0105254A4 Improved ferrite core assembly and mounting means. |
08/07/1984 | US4464644 Procelain-clad electrical machine with vibration-on-transportation suppression |
08/02/1984 | WO1984003002A1 Blade body with hollow blades, method and machine for the production thereof |
08/01/1984 | EP0114648A2 Onload tap-changing transformer |
07/31/1984 | US4463334 Electric coil on core with angled end surface |
07/31/1984 | US4463307 Negative inductance multiplier circuit including temperature compensation |
07/24/1984 | US4462016 Inductor coils with mechanically coupleable bobbins |
07/18/1984 | EP0113465A1 Electrical interference elimination filter |
07/17/1984 | US4460885 Power transformer |
07/17/1984 | US4460884 Transformer comprising a magnetic screen |
07/17/1984 | US4460883 Stabilization ballast for operating a gas and/or vapor discharge lamp |
07/17/1984 | US4460535 Adhesion to cases, unsaturated polyesters |
07/10/1984 | US4459576 Toroidal transformer with electrostatic shield |
07/10/1984 | US4459575 High power transformer |
07/10/1984 | CA1170732A1 Insulated conductors comprising uninsulated conductor strands with a glued joint and a spacer therebetween |
07/04/1984 | EP0112577A1 Magnetic core and method of producing the same |
07/04/1984 | EP0112482A1 Coiling device for dry-type transformers |
07/03/1984 | US4457792 Heating and curing a prepreg resin |
07/03/1984 | CA1170321A1 Low loss spider support for coil of an inductive apparatus |
06/26/1984 | US4456899 Method of utilizing heat due to energy loss in a cool device |
06/26/1984 | CA1169933A1 Convectively cooled bushing connector |
06/26/1984 | CA1169932A1 Transformer cores |
06/20/1984 | EP0111470A2 Thermal protective device for transformers and inductances |
06/19/1984 | US4454635 Holder for releasably securing a ferrite core or the like to an electrical power line |
06/19/1984 | CA1169507A1 High voltage ignition transformer |
06/13/1984 | EP0110582A1 Flexible thermally stable tapes |
06/13/1984 | EP0110269A1 Contact device for the step selectors of step transformers |
06/13/1984 | EP0110069A1 Spraying device to coat objects electrostatically |
06/13/1984 | EP0099408A4 Composite coils for toroidal field coils and method of using same. |
06/12/1984 | US4454554 Coil bobbin |
06/12/1984 | US4454492 Low intra-winding capacitance multiple layer transformer winding |
06/07/1984 | WO1984002224A1 Ignition coal for ignition devices of internal combustion engines |
06/05/1984 | US4453197 Dielectric fluid tank |
06/05/1984 | US4453150 Electric shunt induction winding and automatic lamination cutting machine therefore |
06/05/1984 | US4453144 LC Composite component |
05/30/1984 | EP0109587A1 Transformer with an oil-cooled active part and sound reducing resonators |
05/29/1984 | US4451876 Magnetic amplifier |
05/29/1984 | US4451812 Electrostatic shield |
05/29/1984 | US4451693 Combined ballast container and wall plug for portable electrical equipment |
05/23/1984 | EP0109024A1 Three-phase power current line |
05/23/1984 | EP0108921A1 Toroidal magnetic strip wound core with air gap and method of making such a core |
05/22/1984 | US4450424 Kraft paper impregnated with dicyandiamide in a liquid dielectric; distribution transformers |
05/15/1984 | US4449111 Transformer |
05/15/1984 | US4449110 Device for chocking an inverted type current transformer when transported on its side |
05/15/1984 | US4448444 Power supply housings for exterior light apparatus |
05/15/1984 | CA1167494A1 Bayonet-type circuit breaker having a multiple finger integrated contact band |