Patent · US Expired

Coil

US5402098A · kind A · utility

16Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 23, 1992
Grant dateMar 28, 1995
Priority date
Expiry dateMar 23, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01F2027/2809
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The invention provides a coil comprising a plurality of stacked coil elements connected together at conductor ends to form at least one series of spiral conductors, the coil being characterized in that each of the coil elements includes a sheet insulator, a first conductor in a planar spiral form and provided on one surface of the insulator and a second conductor in a planar spiral form and provided on the other surface of the insulator, the conductors on the respective surfaces of the insulator being wound spirally in directions opposite to each other when seen from above at the same side of the insulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.