Patent · US Expired

Airbag and fabric for manufacturing same

US5554424A · kind A · utility

18Cited by

10References

5Claims

0Family size

Assignee

AKZO NOBEL N.V. · NL

Inventors

Wolf R. Krummheuer · Wuppertal, DE
Volker Siejak · Sörup, DE
Hans A. Graefe · Schwelm, DE

Key dates

Filing date	Apr 25, 1995
Grant date	Sep 10, 1996
Priority date	—
Expiry date	Apr 25, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/3106
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

To manufacture airbags comprising a contact fabric and/or a filter fabric it is proposed to use hollow fiber synthetic filament yarns having a hollow area fraction of 10-40%, based on the total cross-sectional area of the fiber. The closeness values are >72% for the contact fabric and 45-68% for the filter fabric. In addition to reducing the production costs, hollow fibers also make it possible to produce lighter fabrics. These have a beneficial effect on the working of an airbag.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.