Patent ID: 7864019

Claim:
A laminate structure comprising multiple layers bonded in place about one another and two or more conductor portions, each one positioned along one of the multiple layers, a first of the layers positioned about an axis and a second of the layers formed around the first layer, wherein at least two of the conductor portions are segments in a continuous conductive path extending from along the first of the layers to along at least the second of the layers, the conductive path arranged so that when conducting current a magnetic field can be generated or so that when, in the presence of a changing magnetic field, a voltage is induced, and wherein each of the layers is formed with a tubular shape and multiple ones of the conductor portions extend along the tubular shapes in helical configurations comprising multiple adjoining turns generally in accord with the relationship X (Î¸)=[ h /(2Ï€)]Î¸+Î£ A n sin( n Î¸) or X (Î¸)=[ h /(2Ï€)]Î¸âˆ’Î£ A n sin( n Î¸) and Y (Î¸)= R cos(Î¸) and Z (Î¸)= R sin(Î¸) wherein h is a turn advance over a period of 2Ï€, X is a position along the axis, Y and Z are positions along plane transverse to the axis and the term Î£A n sin(nÎ¸) represents a summation of n terms each having a designated magnitude A n and A n is a non-zero value for at least one value of n.