| Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
|---|
| 09/15/1993 | CN2142222Y Resin former using for high-voltage mutual-inductor |
| 09/15/1993 | CN2142040Y Multi-function vacuum filter for oil |
| 09/15/1993 | CN1076151A Hanging spot-welder with transformer |
| 09/14/1993 | US5245521 Suppression of transformer capacitive current |
| 09/14/1993 | US5245497 Transformer |
| 09/14/1993 | US5244007 Relief valve |
| 09/09/1993 | DE4206813A1 Inductive component arrangement - is sheathed in cast or moulded magnetic powder mixt which is finished at level of one surface of coil former so as to enclose coil completely on all sides |
| 09/01/1993 | EP0557689A2 Method for manufacturing a magnetic pulse generator |
| 09/01/1993 | CN2141594Y New structure high-voltage coil |
| 09/01/1993 | CN2141593Y Winding iron core |
| 09/01/1993 | CN2141592Y Transformer theft-proof lock and special wrench |
| 09/01/1993 | CN2141589Y Wire connecting device for coil seat |
| 09/01/1993 | CN1075817A Molded transformer |
| 08/31/1993 | US5240541 Method of fabricating a laminated strip of amorphous metal |
| 08/25/1993 | EP0556939A1 Transformer or reactor core for a power transformer or a power reactor |
| 08/25/1993 | EP0556633A1 Line transformer for television receivers |
| 08/25/1993 | CN2141117Y Segmented dry transformer case |
| 08/24/1993 | US5239290 Magnetic cores for saturable core measuring devices and methods of manufacturing such cores |
| 08/24/1993 | US5239278 Transformer and mounting bracket assembly |
| 08/19/1993 | DE4204092A1 Spool body with coil chamber for coiled products e.g. transformers - has conductive layer inside chamber and insulating layer between conductive layer and product |
| 08/18/1993 | EP0556099A1 Current sensor |
| 08/18/1993 | CN2140553Y Distribution transformer having automatic temp compensating for protecting power metering |
| 08/17/1993 | US5236779 Article of manufacture |
| 08/12/1993 | DE4203199A1 Magnetic component with resilient grippers allowing withdrawal of core - has hollow centre of plastic with ribs extending up and down or across interior walls and pushed aside by core insertion |
| 08/11/1993 | EP0554777A2 Improved contact for termination of coil windings |
| 08/11/1993 | CN2140096Y Double-layer silica gel oil purifier for transformer |
| 08/11/1993 | CN2140095Y Full-sealed expansion type radiator |
| 08/10/1993 | US5235305 Terminals for coil body of electrical coils |
| 08/05/1993 | WO1993015516A1 An insulation device for electrical coils and transformer windings |
| 08/05/1993 | WO1993015515A1 Three phase transformer with frame shaped winding assemblies |
| 08/05/1993 | DE4302650A1 Electrical noise current absorber for antenna cable of electronic equipment - comprises two-part hinged casing whose closure compresses resilient pointed grippers into contact with enclosed conductor |
| 08/04/1993 | EP0473629B1 Method for producing a coil for transformers, in particular high-voltage transformers |
| 08/03/1993 | US5233324 Current transformer for sensing current in an electrical conductor |
| 07/29/1993 | DE4202021A1 Utility or mains supply water-cooled choke with coolant separated from coil - has partial coils arranged in toroid with their windings in coolant housing and contacts through wall and connected outside |
| 07/29/1993 | CA2088207A1 Method for manufacturing a magnetic pulse generator |
| 07/28/1993 | CN2139297Y Dampproof protector for oil filling equipment |
| 07/28/1993 | CN1074732A A ignition coil assembly |
| 07/22/1993 | WO1993014507A1 Device for cooling transformer mounted on electric vehicle |
| 07/22/1993 | DE4201424A1 Continuous cleaning by vacuum of transformer or other oil - without excessive heating of oil when removing gas particles |
| 07/21/1993 | EP0551554A1 Cooling system for electric car mounting transformer |
| 07/21/1993 | CN2138827Y Natural radiating transformer of butt welding machine |
| 07/21/1993 | CN2138826Y Complement strong pressure square aluminium twisting wire hollow core strong current coil |
| 07/15/1993 | DE4214789C1 Transformer for high frequency applications - has annular ferrite core wound with pair of wire coils with core and components mounted on PCB |
| 07/14/1993 | EP0335904B1 Multi-phase electronic temperature controller |
| 07/13/1993 | US5227757 Terminal device |
| 07/13/1993 | US5227584 Barrier of condenser type for field control in transformer bushing terminals |
| 07/13/1993 | US5226970 Electrical transformer remanufacturing process for removal of contaminants |
| 07/13/1993 | US5226222 Fabrication method for transformers with an amorphous core |
| 07/08/1993 | WO1993013581A1 Reconstruction of saturated current transformer signals |
| 07/08/1993 | WO1993013533A1 Ignition coil assembly and method of manufacture thereof |
| 07/08/1993 | WO1993013532A1 Chip type coil |
| 07/08/1993 | DE4200023A1 Electrical transformer - comprises generator winding and radioactive sec. winding of cobalt-60, rubidium-87, europium-154, palladium-107 or technetium-99 wire insulated with polyimide |
| 07/08/1993 | CA2126867A1 Reconstruction of saturated current transformer signals |
| 07/07/1993 | CN2137816Y Winding type r-shape iron core |
| 07/07/1993 | CN2137815Y Metrological device for electricenergy with function of preventing fraudulent use of electricity |
| 07/06/1993 | US5225803 High voltage transformer, notably for an x-ray apparatus |
| 07/06/1993 | US5225802 Low loss spiders |
| 07/06/1993 | US5225630 Transformer assembly having cooling fins and method of providing same |
| 07/01/1993 | DE4143281A1 Laminated core for high power transformers or inductances - has assembly formed using two sizes of plates laminated to create two coil windows |
| 07/01/1993 | DE4142709A1 Coil bobbin for mains isolated electrical transformers - has thickened sections on flanges and provided with slots for foil inserts |
| 06/30/1993 | CN2137392Y Multifunctional anti-theft bolt for transformer |
| 06/30/1993 | CN2137189Y Laser cutter and rolled iron core with circular section |
| 06/24/1993 | WO1993012528A1 Thin film sensors |
| 06/23/1993 | EP0547886A1 Electric component housing assembly |
| 06/23/1993 | EP0547120A1 Power transformers and coupled inductors with optimum interleaving of windings. |
| 06/23/1993 | CN2137019Y Transformer for submersible oil and electric pump on sea platform |
| 06/22/1993 | US5221130 Choke-coil fixture for miniature motors |
| 06/17/1993 | DE4241689A1 Step=up transformer with sepd. prim. and sec. windings - arranged end=to=end along axis of winding sleeve and electromagnetically coupled by core |
| 06/16/1993 | EP0546453A1 Transducer for static electricity meters |
| 06/16/1993 | CN2136518Y Inflated light test transformer |
| 06/16/1993 | CN1073309A High energy dissipation harmonic reactor |
| 06/15/1993 | US5220484 Underground transformer cabin consisting of two units, one inside the other |
| 06/15/1993 | US5220304 Safety insulated transformers |
| 06/10/1993 | WO1993011547A1 Encased magnetic core of a choke or transformer made of layers of c and i-section core sheets |
| 06/09/1993 | EP0545107A1 Method for producing adhesive bonds between bobbins for electrical components and their connecting leads |
| 06/09/1993 | DE4240348A1 Step=up transformer for inverter illuminating cold cathode tube, e.g. for background of LCD - has sec. winding wound in several layers from inside outwards on outside of prim. winding for very thin construction |
| 06/09/1993 | DE4140460A1 Radial support arrangement in transformer cooling channels - consists of building blocks pressed together and having wide part to one side in circumferential direction of winding. |
| 06/09/1993 | CN2135821Y Spring sheet type radiator |
| 06/09/1993 | CN1021166C Resin casting coil |
| 06/08/1993 | US5218505 Superconductor coil system and method of operating the same |
| 06/03/1993 | DE4139440A1 RF choke on cylindrical body - has axial connection pins adhered into blind-end holes in body |
| 06/03/1993 | DE4139217A1 Transformer coil body for switched mode power supplies - has inbuilt-in stray-flux barriers forming end-walls |
| 06/03/1993 | DE4139003A1 Magnetkern in mantelbauweise einer drossel oder eines transformators, geschichtet aus c- und i-foermigen kernblechen Magnetic core in shell construction method of a choke or a transformer, layered from c and I-shaped core blechen |
| 06/02/1993 | EP0544477A1 Molded transformer |
| 06/02/1993 | EP0544082A1 Method for compacting transformer windings |
| 06/02/1993 | CN2134903Y Miniature electric welding or cutting machine |
| 06/01/1993 | US5216567 Device for the alternating current cut-in limitation |
| 06/01/1993 | US5216356 Shielded three phase transformer with tertiary winding |
| 05/27/1993 | WO1993010587A1 Electronic apparatus for measuring the activity of an oil transformer |
| 05/27/1993 | DE4230613A1 Electrical transformer with coil bobbin - has intermediate insulator in form of two half shells that latch together along edges |
| 05/26/1993 | EP0543181A1 Method of producing transformers, especially transformers for distribution installations, and apparatus therefor |
| 05/26/1993 | EP0542857A1 Sheet-wound coils |
| 05/26/1993 | CN1020984C Low-frequency transformer |
| 05/25/1993 | US5214403 Inductive device comprising a toroidal core |
| 05/25/1993 | US5214392 Multilayered ceramic type electromagnetic coupler apparatus |
| 05/25/1993 | US5213298 Mounting bracket assembly |
| 05/19/1993 | EP0542445A1 Flat transformer |
| 05/19/1993 | DE4137776A1 Multilayer HF power transformer for resonant inverter - has soft magnetic core of which one limb passes through holes in multilayer boards carrying prim. and sec. winding tracks |
| 05/19/1993 | CN2133910Y Distributing transformer with three windings |
| 05/19/1993 | CN2133909Y Water cooling purifier for oil immersion transformer |