Device for positioning and melting electrically conductive mater

Details Device for positioning and melting electrically conductive mater Device for positioning and melting electrically conductive mater

1989-10-13

1991-02-12

Reynolds, Bruce A.

Industrial electric heating furnaces

Induction furnace device

373147, H05B 602

Patent

active

049930435

ABSTRACT:
Two coils between which a sample is contactlessly held in a suspended state, form a common part of two different oscillating circuits. A heating oscillating-circuit consists of the two coils and two first capacitors. A positioning oscillating-circuit consists of the two coils and two second capacitors. The current of the heating oscillating-circuit flows through both coils in the same direction, and the current of the positioning oscillating-circuit flows through both coils in opposite directions. Since the two oscillating circuits are not coupled to each other, heating efficiency and positioning efficiency can be set independently from each other. Two coils are sufficient for heating and positioning.

REFERENCES:
patent: 1744983 (1930-01-01), Northrup
patent: 2686864 (1954-08-01), Wroughton et al.
patent: 3644151 (1972-02-01), Keller

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