EP 1883277 A1 20080130 - High efficiency induction heating system

Title (en)

High efficiency induction heating system

Title (de)

Hocheffizientes Induktionsheizsystem

Title (fr)

Système de chauffage par induction à haute efficacité

Publication

EP 1883277 A1 20080130 (EN)

Application

EP 07119279 A 20001110

Priority

EP 00980336 A 20001110
US 16530499 P 19991112
US 55030500 A 20000414

Abstract (en)

An induction melting system (78) uses a crucible (50) formed from a material that has a high electrical resistivity or high magnetic permeability and one or more inductor coils (52) formed from a wound cable consisting of multiple individually insulated copper conductors to form an induction furnace that, along with its associated power supply, provides a compact design. The system components are air-cooled; no water-cooling is required. The induction melting system is particular useful for separating metal from scrap (79), casting molds directly from the induction furnace, and providing a continuous supply of molten metal. The induction system may also be in the form of a tunnel or enclosed furnace for heating a workpiece.

IPC 8 full level

H05B 6/22 (2006.01); B22D 18/04 (2006.01); C21D 1/00 (2006.01); C22B 1/00 (2006.01); C22B 9/02 (2006.01); C22B 9/16 (2006.01); F27B 9/06 (2006.01); F27B 14/06 (2006.01); F27D 11/06 (2006.01); H05B 6/24 (2006.01); H05B 6/28 (2006.01)

CPC (source: EP)

H05B 6/24 (2013.01)

Citation (applicant)

GB 1068017 A 19670510 - WIENER SCHWACHSTROMWERKE G M B
DE 2038442 B1 19720427 - DEUTSCHE EDELSTAHLWERKE AG
US 1904664 A 19330418 - HEINRICH NEUHAUSS
GB 2043221 A 19801001 - DOERENTRUPER SAND & THONWERK

Citation (search report)

[X] DE 2038442 B1 19720427 - DEUTSCHE EDELSTAHLWERKE AG
[X] GB 1068017 A 19670510 - WIENER SCHWACHSTROMWERKE G M B
[X] US 1904664 A 19330418 - HEINRICH NEUHAUSS
[X] GB 2043221 A 19801001 - DOERENTRUPER SAND & THONWERK
[A] US 3401227 A 19680910 - DUNLEVY BARRY O, et al
[A] EP 0391067 A2 19901010 - LEYBOLD AG [DE]
[A] US 1904665 A 19330418 - FITCH NORTHRUP EDWIN
[A] US 5197081 A 19930323 - FISHMAN OLEG [US]
[A] DE 4114683 A1 19921112 - LEYBOLD AG [DE]
[A] US 3014255 A 19611226 - BUSSARD ADRIEN H, et al

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1883277 A1 20080130

DOCDB simple family (application)

EP 07119279 A 20001110