Patent · US Expired

Electromagnetic shield for an induction heating coil

US6864419B2 · kind B2 · utility

18Cited by
5References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 23, 2004
Grant dateMar 8, 2005
Priority date
Expiry dateJun 23, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05K9/0071
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An apparatus and process are provided for reducing the electromagnetic field intensity in selected regions for a field produced when ac current flows through one or more induction coils through which a workpiece moves for induction heating of the workpiece. The electromagnetic shield has transverse screen elements through which the workpiece moves at opposing ends of the one or more induction coils. One or two longitudinal screen elements connect the transverse screen elements.

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