Compact multi-level output gas generator
US7438313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2005 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | May 11, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2685
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A multi-level gas inflator for an air bag or other safety device, comprising an elongated pressure vessel having a primary gas generant portion with a first open end and a secondary portion with a second open end. The primary gas generant portion has a primary ignition device and primary gas generating energetics disposed therein. The primary ignition device is mounted on and closes the pressure vessel at the first open end thereof. The secondary portion may have a secondary ignition device and secondary gas generating energetics disposed therein. The secondary ignition device may be mounted on the pressure vessel at the second open end thereof. A suitable gas under a predetermined pressure is present in the primary and secondary portions. One or more separate dividers or divider walls are disposed within the midportion of the pressure vessel to separate the primary and secondary portions. The pressure vessel may have a primary exit orifice in the midportion thereof that is in communication with the primary gas generant portion, and a secondary exit orifice in the midportion thereof that is in communication with the secondary portion. A primary rupture disk is disposed over the pri…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.