Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
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06/11/1985 | US4521955 Method of making a ducted dry type transformer |
06/11/1985 | US4521954 Method for making a dry type transformer |
06/11/1985 | CA1188765A1 Electrical transformer |
06/04/1985 | US4520556 Methods for assembling a transformer core |
06/04/1985 | CA1188378A1 Pressurizable telephone load coil assembly |
05/29/1985 | EP0143023A1 Casing for the magnetic circuit of ignition transformers for vehicles and method for manufacturing the same |
05/29/1985 | EP0142972A1 An evaporation cooled gas insulated electrical apparatus |
05/28/1985 | US4520335 Transformer with ferromagnetic circuits of unequal saturation inductions |
05/22/1985 | EP0142175A2 Ignition coil for an internal combustion engine |
05/21/1985 | US4518942 Electric machine, such as transformer choke, constant-voltage regulator or the like |
05/21/1985 | US4518941 Pulse transformer for switching power supplies |
05/21/1985 | US4518114 Dip soldering apparatus and method |
05/15/1985 | EP0141296A1 Circuit arrangement for the wiring of high power transformers |
05/14/1985 | CA1186873A1 Processing amorphous metal into packets by bonding with low melting point material |
05/08/1985 | EP0140269A1 End mounting for an electrical high voltage cable |
05/07/1985 | CA1186759A1 Disk coil winding of interwound single or double coils |
04/30/1985 | US4514714 Noise-reduction device for stationary induction apparatus |
04/30/1985 | US4514713 Inductive ballast coated with an insulation layer and method of coating the ballast |
04/30/1985 | CA1186356A1 Resistor insertion fuse |
04/24/1985 | EP0137867A1 Fixing device for wound toroidal cores |
04/23/1985 | US4513274 For use in electrical AC current |
04/23/1985 | US4512387 Power transformer waste heat recovery system |
04/23/1985 | CA1186069A1 Electrical reactor construction |
04/16/1985 | US4511871 Modified deflection yoke coils having shootback windings |
04/10/1985 | EP0136332A1 Wire coil assembly for matrix print head and manufacturing method. |
04/09/1985 | US4510478 Coil body |
04/09/1985 | US4510476 High voltage isolation transformer |
04/09/1985 | US4510475 Disk coil winding of interwound single or double coils |
04/02/1985 | US4509109 Electronically controlled coil assembly |
04/02/1985 | US4509032 Mains transformer |
04/02/1985 | US4509024 For use in an electrified railroad |
03/28/1985 | WO1985001387A1 Ferrite choke coil assembly |
03/26/1985 | US4507637 Coil for electric motor |
03/26/1985 | US4507636 Neutral point plate of three-phase transformer for large secondary currents |
03/26/1985 | CA1184621A1 Transformer, and method of manufacture |
03/20/1985 | EP0134556A1 An impedance element |
03/20/1985 | EP0134525A1 Electrical high-tension feed-through for an electrical apparatus enclosed in a housing |
03/19/1985 | US4506248 Stacked amorphous metal core |
03/12/1985 | US4504813 Energy saving wound core transformer |
03/12/1985 | US4504812 Spherical transformer apparatus |
03/12/1985 | US4503605 Method of making a cellulose-free electrical winding |
03/06/1985 | EP0133661A2 Small transformer |
03/05/1985 | US4503413 Spool for transformer in power supply device |
03/05/1985 | US4502320 Method and apparatus for diagnosing oil-filled electric apparatus |
02/26/1985 | US4502032 Ebullition cooled transformer |
02/26/1985 | US4501123 Cooling apparatus for machinery |
02/20/1985 | EP0133220A2 Electric conductor |
02/19/1985 | US4500833 Switched mode power supply transformer |
02/19/1985 | US4500832 Electrical transformer |
02/19/1985 | CA1182876A1 Electrical inductive apparatus |
02/13/1985 | EP0132912A1 Ebullition-cooled transformer |
02/12/1985 | US4498992 Heating, adsorption, chilling and centrifuging |
02/05/1985 | US4498067 Small-size inductor |
02/05/1985 | US4497387 Transformer with smooth-walled tank |
01/29/1985 | US4496926 Molded coil structure |
01/29/1985 | US4496925 Stepped iron core for static or dynamic electric machines |
01/29/1985 | US4496924 Pulse transformer having conductive shield around magnetic core material |
01/29/1985 | US4496821 Transformer for robot arms |
01/29/1985 | CA1181850A1 Method and apparatus for diagnosing oil-filled electric apparatus |
01/23/1985 | EP0131700A2 Switch mode transformer having a ferrite core |
01/22/1985 | CA1181481A1 Transformer for use in a static inverter |
01/15/1985 | US4494167 Inductor |
01/15/1985 | US4494102 In an electrical transformer |
01/15/1985 | US4494101 Electrical winding on fixed-mount laminated iron core subject to shaking |
01/15/1985 | US4494099 High-frequency coil structure |
01/15/1985 | US4493138 For forming precisely spaced grooves |
01/15/1985 | CA1181013A1 Noise-reduction device for stationary induction apparatus |
01/09/1985 | EP0130902A2 Inductive electronic component for transmission by flat contacts |
01/09/1985 | EP0130276A1 Static induction device |
01/08/1985 | US4492944 Transformer winding |
01/08/1985 | US4492314 For resisting deflections of a tank wall |
01/03/1985 | WO1985000072A1 Inductive element, particularly repeater |
01/02/1985 | EP0130124A1 High voltage isolation transformer |
01/02/1985 | EP0129656A1 Coil bobbin |
01/01/1985 | US4491819 Magnetically biased inductor |
01/01/1985 | US4491818 Pickup coil assembly with coaxial feed |
01/01/1985 | US4491817 Sheet-wound transformer |
12/27/1984 | EP0129118A1 Three-phase reactor with an annular yoke member at the lower and upper side |
12/27/1984 | CA1180073A Vapor cooled electrical inductive apparatus |
12/25/1984 | US4490844 Low frequency transformer |
12/25/1984 | US4490706 Electronic parts |
12/18/1984 | US4489298 Insulating structure for magnetic coils |
12/18/1984 | US4489294 Starter solenoid terminal cover |
12/11/1984 | US4488136 Combination transformer with common core portions |
12/11/1984 | US4488135 Transformer for welding gun |
12/11/1984 | US4488134 Transformer with windings completely embedded in cast resin |
12/11/1984 | CA1179423A1 Device and method for utilization of heat due to losses in transformers or choke coils which are internally cooled by a liquid |
12/06/1984 | WO1984004849A1 Active current transformer |
12/05/1984 | EP0127119A1 Electomagnetic appliance for high-frequency power circuits, particularly a transformer or reactive coil |
12/05/1984 | EP0126734A1 Ignition coal for ignition devices of internal combustion engines. |
12/04/1984 | US4486730 Disc coil winding of interwound single or double coils |
12/04/1984 | CA1179028A1 Support device for the horizontal transport of inverted current transformers |
11/28/1984 | EP0126451A1 Two-part, three-legged core |
11/27/1984 | US4485368 Electrical shunt reactor coil |
11/27/1984 | US4485367 Cooling apparatus for a gas insulated transformer |
11/27/1984 | US4485289 Welding system |
11/20/1984 | US4484171 Shielded transformer |
11/20/1984 | US4484170 Dot matrix print head solenoid assembly |
11/20/1984 | US4484169 Transformer apparatus with -superimposed insulated switch and transformer units |
11/20/1984 | CA1178349A1 Methods and apparatus for assembling a transformer core |