A method and apparatus are disclosed. The method includes the steps of providing an elongate sheet having a uniform thickness and a first and further spaced apart long edge, to a first pair of a plurality of spaced apart pairs of opposed forming roller elements, and via the pairs of roller elements, progressively forming a cross-sectional profile in the sheet that comprises a body portion comprising a folded central region of the sheet and a first and further wing portion that each extend away from the body portion and terminate at a respective long edge of the sheet, and securing adjacent regions of the wing portions and/or opposed regions of the body portion together thereby providing a windable elongate tape element having laterally immobilised wing portions.
Original language | English |
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Patent number | US11085561B2 |
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IPC | F16L 11/16 ,B21C 37/12 ,F16L 11/08 |
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Priority date | 6/12/16 |
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Filing date | 30/11/17 |
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Publication status | Published - 10 Aug 2021 |
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Externally published | Yes |
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