Air heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 28, 2005
Grant Date -
Dec 20, 2001
app pub date -
Jun 13, 2001
filing date -
Jun 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Air heater with PTC heating element with semiconductor switch, the semiconductor switch (5) without the housing being located in the heating tube (9) in the immediate vicinity of the PTC heating element (15).
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