Induction coil having internal and external faradic rings

Details Induction coil having internal and external faradic rings Induction coil having internal and external faradic rings

2006-05-24

2008-12-16

Van, Quang T (Department: 3742)

Industrial electric heating furnaces

Induction furnace device

Having plural heating elements

C373S151000, C373S152000, C156S345480, C219S762000

Reexamination Certificate

active

07466740

ABSTRACT:
An induction furnace includes a pair of induction coils with a pair of faraday rings disposed between the induction coils to substantially prevent mutual inductance between the first and second induction coils. The induction coils preferably have a different size circumference and may be coplanar. The prevention of mutual inductance provided by the faraday rings is particularly useful for a pusher furnace in which adjacent furnace sections are heated to different and rather specific temperatures.

REFERENCES:
patent: 3762912 (1973-10-01), Jacquerie et al.
patent: 4174462 (1979-11-01), Pearce
patent: 4447690 (1984-05-01), Grever
patent: 5034586 (1991-07-01), Havas et al.
patent: 5495094 (1996-02-01), Rowan et al.
patent: 6121592 (2000-09-01), Fishman et al.
patent: 6632324 (2003-10-01), Chan
patent: 2002/0033233 (2002-03-01), Savas

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