Shirred tubular material
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United States of America Patent
Stats
-
Mar 10, 1987
Grant Date -
N/A
app pub date -
Dec 21, 1984
filing date -
Dec 21, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shirred tubular material comprising a plurality of outer folds which when the tubular material is opened are arranged along at least two substantially parallel, longitudinally extending helixes. A method for forming the disclosed shirred tubular material is disclosed which comprises sequentially applying shirring forces through two or more sets of shirring elements wherein each successive member of a set applies shirring forces along a different continuous line than its immediate preceding member. The tubular material may contain reinforcing fibers.
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Cited Art Landscape
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