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US 2015/0316329 A1Published application
A grooved tube
OwnerYanping Langinventor
Life of this patent
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Abstract
The present disclosure presents a seamless grooved tube. The inner surface of the tube is grooved into a pattern, the pattern including at least one rib (1). At least a part of the at least one rib is roughened.
Claims11
A grooved tube, wherein the inner surface of the tube is grooved into a pattern, the pattern including at least one rib, wherein at least a part of the at least one rib is roughened.
Dependencies are inferred from the claim text.