Patent ID: 6121867
Filing Date: 2000-09-19
Classification: H01F,Y10T

Abstract:
An electrical coil assembly comprising:at least one set of electrical coils including a first coil, a second coil and a third coil aligned in tandem;said first coil being formed from a first wire having an inner end and an outer end with said first wire wound in a clockwise or counterclockwise direction from said inner end to said outer end to form multiple layers of the first wire aligned relative to one another in a single row;said second coil located between said first coil and said third coil, and being formed from a second wire having an inner end and an outer end with said second wire wound in a direction opposite to the direction of said first wire to form multiple layers of the second wire aligned relative to one another in a single row; andsaid third coil being formed from a third wire having an inner end and an outer end with said third wire wound in a same direction of said first wire to form multiple layers of the third wire aligned relative to one another in a single row,wherein the inner end of said first coil is connected to the inner end of said second coil and the outer end of said second coil is connected to the outer end of said third coil, and the first coil is not connected to the third coil directly.