Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
04/1982
04/20/1982US4326182 C-Core transformer
04/20/1982US4326181 High voltage winding for dry type transformer
04/20/1982CA1122289A1 Flux control in tape windings
04/14/1982EP0049642A1 Gas insulated electrical apparatus
04/14/1982EP0049641A1 Gas insulated electrical apparatus
04/14/1982EP0049608A1 Method of heating
04/14/1982EP0049444A1 Strip electrical coil for electrical appliances
04/14/1982EP0049382A1 Winding arrangement for transformers with a square cross-sectional core area
04/13/1982US4325044 Mount for an electromagnetic coil
04/13/1982US4324961 Distribution transformer having a primary disconnect switch
04/07/1982EP0049128A1 Insulated electrical coil
04/07/1982EP0048990A2 Noise reducing housing for a static induction apparatus
04/06/1982US4323870 Transformer or reactor having a winding formed from sheet material
03/1982
03/31/1982EP0048384A1 Winding for dry-type transformers
03/30/1982US4322481 Loss characteristics in amorphous magnetic alloys
03/30/1982CA1120998A1 Magnetic circuit reluctance adjustment
03/23/1982US4321690 Magnetic bubble memory module
03/23/1982US4321426 Bonded transposed transformer winding cable strands having improved short circuit withstand
03/23/1982US4321421 Vaporization cooled transformer having a high voltage
03/17/1982EP0047266A1 Low-loss reactor
03/16/1982US4320432 High voltage transformer bushing fuse and arrester arrangement
03/16/1982US4320373 Power transformer with high coupling coefficient
03/16/1982US4320364 Capacitor arrangement
03/09/1982US4319152 Laminated winding for electric machines
03/09/1982US4319076 Electrically insulative hollow-profile structural part with high-tension attaching elements and method of constructing same
03/09/1982CA1119682A1 Precolation cooled transformers
03/03/1982EP0046516A1 Synthetic casing for inductance coil
03/02/1982US4318150 Protected electrical inductive apparatus
03/02/1982US4318068 Induction device equipped with vibration suppressor
03/02/1982US4318067 Flat-type transformer
03/02/1982US4318066 Externally shielded disk windings for transformers
03/02/1982US4317952 Liquid cooled terminal boxes
03/02/1982CA1119262A1 Transformer terminal and support
02/1982
02/23/1982US4317152 A.C. Power line assembly
02/23/1982US4317096 Electrostatic shielding of nonsequential disc windings in transformers
02/16/1982US4316169 Windings for electrical inductive apparatus
02/16/1982US4316137 Completely insulated, metal-encapsulated electrical switching section
02/09/1982US4315232 Subminiature audio transformer
02/09/1982CA1118061A1 Integrally cooled electrical feedthrough bushing
02/02/1982US4314221 Inductance device
02/02/1982US4314220 Fixing structure of electronic component
01/1982
01/26/1982US4313152 Flat electric coil
01/26/1982US4313151 Flat electric coil with tap
01/26/1982US4312794 Ultra pure tetrachloroethylene dielectric fluid
01/19/1982US4311979 Layered transformer winding
01/19/1982US4311978 U-Core pulse transformer
01/19/1982US4311977 Output transformer
01/13/1982EP0043744A1 Ignition coil for internal combustion engine
01/13/1982EP0043615A1 High-voltage transformer
01/13/1982EP0043565A1 Vibration/noise reduction device for electrical apparatus
01/13/1982EP0043523A1 Electrical shunt reactor for an electric power transmission line, and method of making such reactor
01/13/1982EP0043511A1 Device using the heat losses of internally fluid-cooled transformers or chokes
01/06/1982EP0042898A1 Laminated magnetic circuit with air gap, and method of adjusting the air gap
01/05/1982US4309652 Current transforming circuits
01/05/1982US4309519 Process for producing flyback transformer
01/05/1982CA1115793A1 Magnetic core with magnetic ribbon in gap thereof
01/05/1982CA1115792A1 Direct current transformer
12/1981
12/30/1981EP0042571A1 Process for conducting and/or converting energy in gaseous, liquid or solid mediums
12/29/1981US4308513 Etched magnetic coil
12/29/1981US4308512 Modular air core coil inductance assembly
12/29/1981US4308495 Transformer for voltage regulators
12/29/1981US4308420 Electrical apparatus with convectively cooled bushing connector
12/24/1981WO1981003732A1 Method for conducting and/or transforming energy within gas,liquid or solid media
12/23/1981EP0042020A1 Convergence unit for cathode-ray tube
12/23/1981EP0041954A1 The cancelling of vibrations transmitted through a fluid in a containing vessel
12/22/1981US4307365 Current transformer
12/22/1981US4307364 Electrical reactor with foil windings
12/22/1981CA1114909A1 Magnetic circuit
12/16/1981EP0041884A1 High-voltage transformer for medium and high frequency reach
12/15/1981US4306209 Sound-proofed choke
12/15/1981CA1114464A1 Packaged inductive coil assembly
12/10/1981WO1981003576A1 Lc composite part
12/09/1981EP0041288A1 Wound electrical components
12/09/1981EP0041220A1 Electrical device containing a halogenated dielectric fluid
12/08/1981US4305056 Transformer with gapped core
12/08/1981US4304956 High voltage seismic bushing
12/08/1981US4304880 Insulating coating for transformer wires
12/08/1981CA1113707A1 Use of synthetic hydrocarbon fluids in transformers
12/02/1981EP0040651A1 Container for the evacuation of heat losses
12/01/1981US4303902 Inductive coupler
12/01/1981CA1113448A1 Heat exchanger arrangement for vaporization cooled transformers
11/1981
11/25/1981EP0040382A1 Sheet-wound coil for a transformer filled with a liquid dielectric
11/25/1981EP0040262A1 Electrical reactor with foil windings
11/24/1981CA1113161A1 High voltage winding for dry type transformer
11/18/1981EP0039901A1 Electric shunt reactor and automatic machine for cutting laminations
11/17/1981US4301437 Impedance coil core
11/17/1981CA1112441A1 Electrical devices containing select vinylsiloxane dielectric fluids
11/11/1981EP0039485A1 Line transformer for a television receiver
11/10/1981US4300112 Circuit arrangement for controlling transformer current
11/10/1981US4299704 Method for removing polychlorinated biphenyls from contaminated transformer dielectric liquid
11/04/1981EP0038957A1 Rolled core
11/03/1981CA1111916A1 Vaporization cooled electrical inductive apparatus
10/1981
10/29/1981WO1981003093A1 High-voltage rectifier
10/27/1981US4297665 Doughnut-type transformer for resistance butt welding
10/27/1981US4296904 Electrical equipment mount
10/27/1981CA1111540A1 Overpressure protection for vaporization cooled electrical apparatus
10/21/1981EP0038284A1 Inductive voltage transformer, with gas or fluid insulation
10/21/1981EP0037970A2 Line transformer for a television receiver
10/20/1981US4296395 Structure for preventing winding collapse
10/20/1981US4296003 Atomized dielectric fluid composition with high electrical strength