Dual stage inflator
US5398966A · kind A · utility
18Cited by
10References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1994 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2633
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A device is provided for increasing the surface area of the gas generant used in an automotive safety air bag module. Depending on crash conditions, the surface area of the gas generant is increased by shattering the gas generant wafers. One embodiment utilizes a squib having a high brisance zone which upon activation shatters the gas generant wafers. Alternatively, a dual function squib is used which can produce mechanical forces which force a breaking object to impact on the gas generating wafers thereby shattering them and increasing the surface area of the gas generant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.