Tubular structures and knurling systems and methods of manufacture and use thereof
AssigneeDeflecto, LLC
InventorRoman Sindelar
Life of this patent
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Abstract
A method includes: bending a sheet about a mandrel such that the sheet is tubular, wherein the sheet includes a first longitudinal end portion and a second longitudinal end portion; engaging the first longitudinal end portion with the second longitudinal end portion; and passing the sheet between a first knurling wheel and a second knurling wheel such that the first knurling wheel applies a first knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion and the second knurling wheel applies a second knurling pattern to the sheet over the first longitudinal end portion and the second longitudinal end portion.
Claims18
A method comprising:
- bending a sheet about a mandrel such that the sheet is tubular, wherein the sheet includes a first longitudinal end portion and a second longitudinal end portion;
- interlocking the first longitudinal end portion with the second longitudinal end portion over the mandrel;
- passing the sheet between a plurality of knurling wheels such that the sheet is knurled, wherein the mandrel hosts one of the knurling wheels;
- and
- pushing the sheet along the mandrel to the knurling wheels via a base portion, wherein the base portion moves along the mandrel.
Dependencies are inferred from the claim text.