Multiple finned tube and a method for its manufacture
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United States of America Patent
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Sep 8, 1998
Grant Date -
N/A
app pub date -
Jun 6, 1995
filing date -
Jun 15, 1994
priority date (Note) -
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Importance
Abstract
A metallic finned tube having multiple fins integrally formed on and extending helically on an outside of the tube. The fins number at least four and begin at fin run start locations spaced evenly about a circumference of the tube, with at least one group of side-by-side helical fins being formed which begin at substantially the same circumferential fin run start location on the tube exterior.
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