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US 6,672,339 B2Granted
Air bag fabric possessing improved packed volume characteristics
AssigneeMilliken & Company
InventorsRamesh Keshavaraj, Michael D. Hurst
Life of this patent
Estimating the term…
Abstract
A fabric for use in an air bag is provided. The fabric of the invention is produced by mechanically compressing a preliminary fabric constructed substantially of synthetic yarn such that the packed volume per unit area of the compressed fabric is less than the packed volume per unit area of the preliminary fabric. Air permeability is not adversely affected.
Claims10
A woven fabric for manufacture of an air bag, comprising the
- (a) a preliminary woven fabric constructed substantially of synthetic yarns wherein the preliminary woven fabric has a reference packaged volume per unit area and a reference dynamic air permeability;
- and after processing
- (b) compressed fabric having a mass per unit area at least 4 percent greater than the mass per unit area of the preliminary woven fabric and wherein both the packed volume per unit area and the dynamic air permeability of the compressed fabric are less than the reference values of the preliminary woven fabric.
An air bag comprising a woven fabric, wherein said woven fabric is comprising:
- (a) a preliminary woven fabric constructed substantially of synthetic yarns wherein the preliminary woven fabric has a reference packed volume per unit area;
- and after processing
- (b) yield a compressed woven fabric having a mass per unit area at least 4 percent greater than the mass per unit area of the preliminary woven fabric wherein the resulting packed volume per unit area of the compressed woven fabric is less than said reference packed volume per unit area of the preliminary woven fabric under substantially equivalent measurement conditions.
Dependencies are inferred from the claim text.