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US5393958A Heater with a pretensioned heating element 失效
加热器带预加热元件

Heater with a pretensioned heating element
摘要:
Heating resistors and/or series resistors (10) are curved in flat corrugation manner from flat band and are so pressed into the bottom (7) of an insulation (3), that they are only prevented by friction from rising from the bottom (7). The resistor (10) has non-offset, uninterrupted, through-edge faces (14, 15). Thus, in the case of a very simple construction, a surface-specific, high power density can be obtained.
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