Rapid buring propellant charge for automobile air bag inflators, rocket motors, and igniters therefor
US4798142A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1986 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Aug 18, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B5/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A rapid burning propellant charge for applications including igniters, launch eject motors, and gas generators for automobile air gags. The propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of solid propellant material on the ligaments. In order to provide a large amount of surface area for a fast burn time, interstices are between coated ligaments to define propellant surface area for combustion. In applications where minimum smoke is desired, the reticulated substrate is preferably composed of carbon, graphite, or a non-combustible material, and the solid propellant material is preferably a minimum smoke type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.