Light weight welded aluminum inflator
US4547342A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1984 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Apr 2, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1647
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas generator or inflator particularly for the inflation of inflatable protective bags that are used in vehicle safety systems includes first and second aluminum structural components. The first component, a diffuser shell having outlet ports, includes integrally formed concentric cylinders which define chambers containing ignition materials, a solid gas generant composition and filters and provide ports for the passage of generated gases from chamber to chamber and then through the outlet ports. The second component, a base shell, has an attachment flange, includes an initiator, and is provided with three concentric surfaces that mate with the ends of the concentric cylinders of the first component. The three concentric cylinders of the first component are simultaneously joined with the concentric mating surfaces of the second component by a single inertia welding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.