EP 0026456 A3 19810415 - HEATING ARRANGEMENT USING A P.T.C. RESISTANCE
Title (en)
HEATING ARRANGEMENT USING A P.T.C. RESISTANCE
Publication
Application
Priority
DE 2939470 A 19790928
Abstract (en)
[origin: ES8105915A1] A heating device has a PTC resistor plate as the heating element and is covered with an insulating body. Between the heating element and the insulating body, on each of opposite surfaces of the heating element, ductile metal layers, preferably aluminum, are provided under a permanent pressure of at least 0.3x108 Pa, the layers being designed as current supply electrodes having electrical terminals. The resistor plate may advantageously have a surface roughness in the magnitude of 100 mu m.
IPC 1-7
IPC 8 full level
H01C 1/14 (2006.01); H05B 3/06 (2006.01); H05B 3/14 (2006.01)
CPC (source: EP US)
H01C 1/1406 (2013.01 - EP US); H05B 3/06 (2013.01 - EP US); H05B 3/14 (2013.01 - EP US); H05B 2203/02 (2013.01 - EP US)
Citation (search report)
- US 2606986 A 19520812 - SWEGER RUSSELL P
- DE 7838558 U1 19790329
Designated contracting state (EPC)
AT CH FR GB IT
DOCDB simple family (publication)
EP 0026456 A2 19810408; EP 0026456 A3 19810415; DE 2939470 A1 19810402; DE 2939470 C2 19820408; ES 495392 A0 19810616; ES 8105915 A1 19810616; JP S5657288 A 19810519; US 4331861 A 19820525
DOCDB simple family (application)
EP 80105755 A 19800924; DE 2939470 A 19790928; ES 495392 A 19800926; JP 13572380 A 19800929; US 18118880 A 19800825