Abstract: A method of fabricating an inductive coil having inner and outer winding portions formed from one or more metal sheets. The method includes wrapping a fiber strand around an outer surface of the inner winding portion, positioning the outer winding portion around the inner winding portion, and electrically coupling the inner winding portion to the outer winding portion to form an electric circuit.

Abstract: A brushless motor with a rotor having a magnet and a magnetic return, the magnet and magnetic return being arranged to form a gap therebetween, and a stator having a coil disposed in the gap.

Abstract: An inductive coil for an electromotive device includes a pair on concentric conductive sheet metal winding portions each comprising a plurality of axially extending conductive bands each being separated from an adjacent conductive band by a space, each of the conductive bands of the winding portions being coupled to one of the conductive bands of the other winding portion.

Abstract: An armature apparatus for brushless and brush type electric motors and a manufacturing method for same armature. The armature represents and improved design for electric motors having a rigid, thinwall configuration and high conductor packing density in the magnetic flux air gap that results in motors with higher torque and speed capabilities and the ability to operate at higher temperature than conventional motor designs. The armature is fabricated from pre-machined copper sheet metal parts with an electrical conductor pattern of numerous axially extending conductive bands. These precision machined sheet metal parts are cold rolled to form two work hardened cylinders, each cylinder having a complimentary pattern of electrically conductive bands creating a half-electric circuit. The two cold rolled metal cylinders are sized such that the smaller diameter inner cylinder fits inside the larger diameter outer cylinder.

Abstract: A brushless motor with a rotor having a magnet and a magnetic return, the magnet and magnetic return being arranged to form a gap therebetween, and a stator having a coil disposed in the gap. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract: An armature apparatus for brushless and brush type electric motors and a manufacturing method for same armature. The armature represents and improved design for electric motors having a rigid, thinwall configuration and high conductor packing density in the magnetic flux air gap that results in motors with higher torque and speed capabilities and the ability to operate at higher temperature than conventional motor designs. The armature is fabricated from pre-machined copper sheet metal parts with an electrical conductor pattern of numerous axially extending conductive bands. These precision machined sheet metal parts are cold rolled to form two work hardened cylinders, each cylinder having a complimentary pattern of electrically conductive bands creating a half-electric circuit. The two cold rolled metal cylinders are sized such that the smaller diameter inner cylinder fits inside the larger diameter outer cylinder.

Abstract: An armature for an electric motor is constructed from a pair of precision machined copper plates cut in a pattern to produce a series of axially extending surface conductive bands with each band separated from the other by an insulated cutout. The precision machined plates are rolled to form two telescoping, hollow cylinders with each cylinder having a pattern of conductive bands representing a half-electric circuit. The outer surface of the inner cylinder is wrapped with several layers of fiberglass strands for structural stability and insulation. The fiberglass wrapped inner cylinder is telescoped inside the outer cylinder. The outer surface of the telescoped structure is also wrapped with several layers of fiberglass strands for structural stability. The conductive bands from the outer cylinder being the near mirror image of the conductive bands of the inner cylinder are helically coupled to form a complete electrical circuit.