Air bag inflator
US6086094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Apr 22, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/272
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus (10) for inflating an inflatable vehicle occupant protection device (12) comprises an inflator structure (14) defining a primary chamber (18), a secondary chamber (48), a primary outlet (50) for enabling fluid flow from the primary chamber to the secondary chamber, and a secondary outlet (70) for directing fluid flow from the secondary chamber to the inflatable device. A primary burst disk (60) extends across the primary outlet (50). The primary burst disk (60) is rupturable in response to the pressure differential across the primary burst disk exceeding a first predetermined pressure differential. A secondary burst disk (80) extends across the secondary outlet (70) and is rupturable in response to the pressure differential across the secondary burst disk exceeding a second predetermined pressure differential. Inflation fluid (20) is stored at a first pressure in the primary chamber (18). Inflation fluid (90) is stored in the secondary chamber (48) at a second pressure less than the first pressure, so that the pressure differential across the primary burst disk (60) is less than the first predetermined pressure differential. The apparatus includes actuatable means (16)…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.