Heater
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United States of America Patent
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Issued Date -
Mar 24, 2011
app pub date -
Sep 4, 2008
filing date -
Sep 4, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A heater comprises a cast casing, a heating tube and a water tube coiled on the heating tube imbedded in the cast, wherein the heating tube is U-shaped and has two electric terminals for connecting to the power, and the water tube has an inlet and an outlet extending out of the casting. Because the heating tube and water tube are imbedded in the casting, and there are fillings that fully fill the interstice between the heating tube and the water tube, the casting has good heat accumulation ability, which allows the heat generated by the heating tube to be highly concentrated to achieve high heat transfer efficiency.
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