EP 0071048 B1 19850123 - RADIANT ELECTRIC HEATING ELEMENT AND METHOD OF MANUFACTURING THE SAME
Title (en)
RADIANT ELECTRIC HEATING ELEMENT AND METHOD OF MANUFACTURING THE SAME
Publication
Application
Priority
DE 3129239 A 19810724
Abstract (en)
[origin: ES274609U] An electrical heating element (18) for heating a plate, e.g. a glass ceramic plate (14) has a multilayer insulating support (12) in whose dish-shaped depression heater coils (18) are arranged in spiral form. The heater coils are located on the insulating support surface (17) and have downwardly directed deformations (19) comprising a turn pressed out in the downwards direction. These deformations (19) are embedded in the surface layer (16) of the insulating support, which is mechanically stronger and more thermally conductive than the underlying insulating layer (15). The deformations are produced in a mould (22, 23) carrying the heater coils in slots (21) and by means of a bladelike punch (24) a turn is pressed into a depression (25). The connection between heater coil (18) and insulating support (12) during the moulding thereof comprises a loose insulating material, the heater coil and deformations being placed in slots (27) of mould part (26).
IPC 1-7
IPC 8 full level
H05B 3/76 (2006.01); F24C 15/10 (2006.01); H05B 3/06 (2006.01); H05B 3/68 (2006.01); H05B 3/74 (2006.01)
CPC (source: EP US)
H05B 3/748 (2013.01 - EP US); H05B 2203/017 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0071048 A1 19830209; EP 0071048 B1 19850123; AT E11449 T1 19850215; AU 557733 B2 19870108; AU 8621582 A 19830127; DE 3129239 A1 19830210; DE 3262043 D1 19850307; ES 274609 U 19840516; ES 274609 Y 19850101; FI 75465 B 19880229; FI 75465 C 19880609; FI 822565 A0 19820720; FI 822565 L 19830125; GR 76857 B 19840904; JP H0449231 B2 19920810; JP S5826485 A 19830216; NO 154679 B 19860818; NO 154679 C 19861126; NO 822532 L 19830125; US 4471214 A 19840911; YU 158082 A 19850320; YU 43961 B 19891231; ZA 825038 B 19830427
DOCDB simple family (application)
EP 82106019 A 19820706; AT 82106019 T 19820706; AU 8621582 A 19820720; DE 3129239 A 19810724; DE 3262043 T 19820706; ES 274609 U 19820723; FI 822565 A 19820720; GR 820168794 A 19820719; JP 12776982 A 19820723; NO 822532 A 19820722; US 39855682 A 19820715; YU 158082 A 19820720; ZA 825038 A 19820715