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US 5,803,164 AGranted
Multiple finned tube and a method for its manufacture
AssigneeWieland-Werke AG
InventorsGerhard Schuez, Manfred Knab
Life of this patent
Estimating the term…
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.
Claims15
A metallic finned tube, comprising:
- multiple fins integrally formed on and extending helically on an outside of the tube, the fins being at least four in number, and beginning 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.
Dependencies are inferred from the claim text.