Encapsulated electrical coil having means to aid impregnation

Claim 1

AN ELECTRICAL COIL INCLUDING A PLURALITY OF CONCENTRIC CYLINDRICAL LAYERS OF CONDUCTOR, SOLID INSULATION SHEETS POSSESSING HIGH DIELECTRIC PUNCTURE STRENGTH AND BEING PERMEABLE TO A POLYMERIZABLE RESIN IN LIQUID FORM DISPOSED BETWEEN SAID CONDUCTOR LAYERS, WOVEN FABRIC INSULATION SHEETS CAPABLE OF PASSING AIR AND SAID RESIN IN LIQUID FORM THERETHROUGH DISPOSED BETWEEN SAID CONDUCTOR AND SOLID INSULATION LAYERS WITH A FABRIC SHEET ADJACENT TO EACH CONDUCTOR LAYER AND TO GIVEN SOLID INSULATION LAYERS, AND A POLYMERIZED INFUSIBLE RESIN ENVELOPING SAID COIL AND FILLING OPENINGS WITHIN SAID FABRIC AND SPACE BETWEEN SAID CONDUCTOR LAYERS AND SAID INSULATION SHEETS, WHEREBY AIR VOIDS ARE SUBSTANTIALLY ELIMINATED WITHIN SAID COIL AND THE RADIO INFLUENCE NOISE GENERATED BY SAID COIL IS REDUCED.