EP 0038414 B1 19850116 - ELECTRIC WIRE HEATING ELEMENT
Title (en)
ELECTRIC WIRE HEATING ELEMENT
Publication
Application
Priority
DE 3014935 A 19800418
Abstract (en)
[origin: EP0038414A1] 1. Electrical wire heating element for heating an air flow, which has a heating conductor support receiving the heating conductor winding and which comprises rectangular support plates made from insulating material arranged in cross-like or star-like manner about the central axis of the air flow and parallel thereto, the inner edges of said plates being oriented parallel to the air flow and whereof in each case two further edges are at right angles to the air flow and onto whose four outer edges is spirally wound a heating conductor, whose longitudinal course is periodically deformed, i.e. in meander-like, zig-zag or wavy manner and whose turns are partly successively arranged in the air flow, characterized in that the portions (51, 52) of in each case two successive turns of the heating conductor winding supported and defined by two adjacent support plates (1, 2; 2, 3; 3, 4; 4, 1) differ from one another with respect to the number of their periodic undulations.
IPC 1-7
IPC 8 full level
H05B 3/16 (2006.01)
CPC (source: EP)
H05B 3/16 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0038414 A1 19811028; EP 0038414 B1 19850116; DE 3014935 A1 19811022; DE 3168230 D1 19850228; ES 266004 U 19830216; ES 266004 Y 19830801; HK 64889 A 19890818; IE 51043 B1 19860917; IE 810890 L 19811018
DOCDB simple family (application)
EP 81101595 A 19810306; DE 3014935 A 19800418; DE 3168230 T 19810306; ES 266004 U 19810415; HK 64889 A 19890810; IE 89081 A 19810416