Gas bag for a vehicular occupant restraint system
US6361071B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Nov 21, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23547
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A gas bag for a vehicular occupant restraint system comprises two plies of fabric partially interwoven along their outer edges. To offer protection over a lengthy period in time amounting to several seconds but nevertheless dissipate the energy of impact to the required degree on impact and cushioning of the occupant, the plies of fabric are substantially air-tight, and the volume of the gas bag is divided by partial interweaving of the plies of fabric within the outer edges into several chambers. Further, the chambers are interconnected by at least one choked port remaining between the portions of the interwoven plies of fabric. Only part of the chambers is directly inflated by an inflator, the remaining part of the chambers being indirectly inflated via the choked port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.