EP 0971561 A1 20000112 - Electrical heating resistance for electric furnace and manufacturing method for such a resistance
Title (en)
Electrical heating resistance for electric furnace and manufacturing method for such a resistance
Title (de)
Elektrischer Heizwiderstand für Electroofen und Herstellungsverfahren
Title (fr)
Résistance électrique chauffante pour four électrique et procédé de fabrication d'une telle résistance
Publication
Application
Priority
FR 9808634 A 19980706
Abstract (en)
A resistance heater has a ceramic resistance heating portion (12) comprising a sintered mixture of silicon carbide particles, electrically conductive phase forming dopant particles and mineral particles. Preferred Features: The dopant particles consist of nickel oxide and the mineral particles consist of alumina and yttrium oxide.
Abstract (fr)
Cette résistance électrique chauffante (10) pour four électrique comprend une partie (12) résistive chauffante en matière céramique. La matière céramique comporte un mélange fritté de particules de carbure de silicium, de particules dopantes adaptées pour l'obtention, après frittage, d'une phase électriquement conductrice et de particules minérales. <IMAGE>
IPC 1-7
IPC 8 full level
F27D 11/02 (2006.01); H05B 3/14 (2006.01); H05B 3/64 (2006.01)
CPC (source: EP US)
H05B 3/141 (2013.01 - EP US); H05B 3/148 (2013.01 - EP US); H05B 3/64 (2013.01 - EP US)
Citation (search report)
- [A] EP 0180928 A2 19860514 - NORTON CO [US]
- [A] US 4174971 A 19791120 - SCHREWELIUS NILS G [SE]
- [A] FR 2575458 A1 19860704 - TOSHIBA CERAMICS CO [JP]
- [A] FR 2757736 A1 19980626 - ELECTRICITE DE FRANCE [FR]
- [A] WO 9314044 A1 19930722 - UNIV CINCINNATI [US]
- [A] PATENT ABSTRACTS OF JAPAN vol. 017, no. 340 (E - 1389) 28 June 1993 (1993-06-28)
- [A] SOVIET PATENTS ABSTRACTS Week 9230, Derwent World Patents Index; AN 92-248581, XP002097184
- [A] JAPANESE PATENTS GAZETTE Week 8512, Derwent World Patents Index; AN 85-072413, XP002097185
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0971561 A1 20000112; EP 0971561 B1 20020911; AT E224127 T1 20020915; CA 2276678 A1 20000106; DE 69902853 D1 20021017; DE 69902853 T2 20030522; DK 0971561 T3 20030113; ES 2183491 T3 20030316; FR 2780845 A1 20000107; FR 2780845 B1 20000811; JP 2000036371 A 20000202; NO 993306 D0 19990702; NO 993306 L 20000107; PT 971561 E 20030131; US 6146550 A 20001114
DOCDB simple family (application)
EP 99401460 A 19990614; AT 99401460 T 19990614; CA 2276678 A 19990630; DE 69902853 T 19990614; DK 99401460 T 19990614; ES 99401460 T 19990614; FR 9808634 A 19980706; JP 19014099 A 19990705; NO 993306 A 19990702; PT 99401460 T 19990614; US 34320499 A 19990630