Rollover air bag with damping mechanism
US6802530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23386
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rollover air bag system comprising: at least a first inflatable first chamber, the air bag adapted to be mounted within a passenger compartment of a vehicle in a manner such that when the air bag is inflated the first inflatable chamber is positioned to receive and protect the head of an occupant, an accumulator chamber located downstream of the first chamber, the accumulator chamber initially maintained at a negative pressure relative to the inflated first chamber, wherein in order to restrict the pressure in the first chamber from increasing upon impact with a body part of the occupant, the inflation gas in the first chamber is allowed to be pushed into the accumulator chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.