Air bag and method of seam assembly for minimizing gas leakage
US6435553B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23576
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A safety apparatus including an air bag (20). The air bag includes a first (22) and second (24) panel of flexible, impermeable material, each panel having a respective peripheral edge (23,25). The first and second panels are joined together along a structural first joint (110), which extends along a substantial portion of the peripheral edges to define an inflatable chamber (26) therebetween. The first joint (110) is subject to a peel load as the first and second panels are urged apart as the chamber is inflated. The apparatus also includes inlet means (32, 44) for communicating inflation gas into the chamber. A pressure barrier (100) is located within the chamber, for preventing inflation gas from bearing against the first joint. In the preferred embodiment, the pressure barrier is not subject to the peel load as is the first joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.