Gas bag inflator with a two welded joint housing
US4943086A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1989 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2648
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle inflatable crash protection bag inflator. The inflator housing comprises two structural components which are welded together by only two welded joints to define an inner or combustion chamber containing gas generant material and an outer or diffuser chamber. An igniter tube is disposed in the combustion chamber free of attachment to one of the structural components and is press fit or otherwise suitably attached to a mounting post on the other structural component. The igniter tube is perforated and wrapped with a foil whereby the igniter material is disposed in direct contact with a squib to better ensure ignition thereof. Alternatively, the igniter tube and igniter material may be eliminated and the gas generant material disposed in direct closely surrounding relation to the squib. The housing is composed of aluminum, and the inflator has a minimum weight and size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.