Process for providing gradual deployment of an airbag and a pyrotechnic charge for its implementation
US6322649A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Aug 31, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06D5/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the field of protecting the occupants of a motor vehicle by an inflatable airbag. The invention relates to a process consisting in inflating an airbag (1) by a pyrotechnic generator (2) containing a double-composition charge (9) formed around a main charge having a linear burning rate V.sub.1 and at least part of the ignition faces of which are covered with a skin of moderate pyrotechnic composition having a linear burning rate V.sub.2 satisfying the relationship: EQU 0.05 V.sub.1.ltoreq.V.sub.2.ltoreq.0.5 V.sub.1. The invention thus makes it possible to inflate the airbag gradually during the first milliseconds of deployment of the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.