Patent · US Expired

Induction heating system with a flexible coil

US6229126A · kind A · utility

53Cited by
22References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 5, 1998
Grant dateMay 8, 2001
Priority date
Expiry dateMay 5, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P10/25
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method and apparatus for induction heating includes a power supply, and a controller, and an induction head. The induction head includes a flexible coiled, such as one formed with Litz wire. The head also includes a thermal insulator, for disposing between the head and the workpiece. The insulator reflects heat back to the workpiece, protecting the coil, but is transparent to inductive (E-M) energy. The power supply is a variable output frequency power supply, such as one having a resonant tank, to adapt to the inductance of the head.

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