APPARATUS FOR AND METHOD OF MANUFACTURING A HELICALLY WOUND TUBULAR STRUCTURE
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United States of America Patent
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Issued Date -
Nov 17, 2011
app pub date -
Jan 14, 2010
filing date -
Jan 16, 2009
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Abstract
An apparatus (50) for and method of manufacturing structures (116) includes coaxial rotating faceplates (74, 89, 97), capable of rotation at different angular speeds. A plurality of forming rollers (76) and diameter defining rollers (78) are mounted on the inner faceplate (74, 89), which, in operation, cause a strip material (80) to be plastically deformed into a helical winding which may be lain down in abutting or self-overlapping relationship to form said tubular structure (116). A plurality of support rollers are mounted in a circle on the inner faceplate (74, 89) at a distance from the axis exceeding that of the outermost forming roller and serve to support the stock of strip material.
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