Gas bag inflators
US4590041A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Nov 21, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spring actuated annular movable plate in the combustion chamber of a pyrotechnic gas generator exerts a constant pressure on gas generant pellets therein to prevent relative movement and consequent abrasion and reduction to powder form of the pellets regardless of the extent to which they continue to settle relative to one another as the result of age and continued vibration of the vehicle in which the generator is installed thereby improving the long duration stability of the generator and avoiding overpressurization of the generator that tends to result upon degradation of the gas generant pellets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.