Internally and externally enhanced wielded tube
AssigneeOlin Corporation
InventorsMyron R. Randlett, Jerome M. Dupy
Life of this patent
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Abstract
An externally and internally enhanced welded tube formed from a strip having a thickness b. The tube includes an inner wall enhanced with a first desired pattern having a thickness of a. An outer wail is enhanced with a second desired pattern, the second desired pattern having a thickness c. The weld fusing a portion of adjacent longitudinal edges of the strip wherein a weld bead associated with said weld is recessed within said desired patterns, does not extend beyond said desired patterns, and the length of said portion of said adjacent longitudinal edges that is fused together is from about (b+0.05a+0.05c) to about (b+0.2a+0.2c).
Claims8
A welded metal tube comprising:
- a tubular metallic strip having adjacent longitudinal edges and a thickness b, an inner wall enhanced with a first desired pattern, the first desired pattern having a thickness of a, and an opposing outer wall enhanced with a second desired pattern, the second desired pattern having a thickness c;
- and
- a weld fusing a portion of said adjacent longitudinal edges wherein a weld bead associated with said weld is recessed within said desired patterns and does not extend beyond said desired patterns, the length of said portion of said adjacent longitudinal edges that is fused together is from about b+0.05a+0.05c to about b+0.2a+0.2c.
Dependencies are inferred from the claim text.