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US 8,541,076 B2Granted
Stretchable high-loft flat-tube structure from continuous filaments
AssigneeV.F.T. Inc.
InventorTomas Jung-Fu Chien
Life of this patent
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Abstract
Improved batts for sleeping bags, insulated apparel, bedding, and other uses are made from a tow of crimped continuous filaments by a machine and process which spreads, extends, and wraps the tow into an endless flat-tube structure with desired uniformity, balanced tensile strength, dimensional stability, stretchability, and high loft.
Claims13
A substantially uniform flat-tube batt structure comprising at least one crimped and widened helically wrapped continuous filaments tow band.
Dependencies are inferred from the claim text.