Circulating oil heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 2, 2001
Grant Date -
N/A
app pub date -
Feb 28, 2000
filing date -
Feb 28, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fluid heater has concentrically disposed radiantly heated and convectionally heated sections. The radiantly heated section includes a helically coiled tube defining a cylindrical chamber in which a flame produced by a burner primarily radiantly heats the coiled tube. The helically coiled tube has an outer perimeter about which a plurality of finned tubes are concentrically disposed and are heated by convection transfer of thermal energy. The oil heater embodying the present invention provides a compact oil heater that has greatly increased heating efficiency, reduced heat loss through the shell of the heater, and reduced internal stresses.
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Family
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