Back to results
US 6,473,948 B1Granted
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.
Claims5
A method of producing an airbag fabric comprising the steps of:
- (a) providing a preliminary woven fabric constructed substantially of synthetic yams wherein the preliminary woven fabric has a reference packed volume per unit area;
- and
- (b) mechanically forcing together the yams of the preliminary woven fabric to 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.