All-glass header assembly used in an inflator system
US5404263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Mar 10, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/198
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An all-glass header assembly is provided for use in an air bag system that is located in a vehicle. The header assembly acts to initiate flow of gases into the air bag. The header assembly includes an eyelet having a bore that receives an all-glass insulating body that is flush with an outer surface of the eyelet. A center electrode pin is located through a preformed hole in the center of the glass insulating body. A side electrode pin is welded to the eyelet. Electrical current flows through the two electrode pins when predetermined power is applied at a desired time. In making the all-glass header assembly, a fixture system and process are employed for achieving flushness among the eyelet, glass insulating body and center electrode pin while avoiding unwanted voids, bubbles or cracks in the glass insulating body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.