Lightweight discoidal filterless air bag inflator
US6126197A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Apr 24, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/26064
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A non-hybrid pyrotechnic filterless inflator, i.e., gas generator, for an automotive passive restraint air bag having a generally discoidally-shaped pressure vessel having a diameter that preferably is greater than or about equal to its height formed of a cup-shaped closure cap and a base member and having at least one exhaust nozzle for directing gaseous products out of the inflator and into the air bag. The pressure vessel contains an initiator assembly and a gas-generant cup assembly including a stamped metal cup which contains the main pyrotechnic gas-generating propellant composition positioned about and in some embodiments in contact with the initiator assembly and preferably spaced a small distance from the walls of the pressure vessel. The initiator assembly includes an initiator plug received in the opening of the base, a standard initiator which ignites the gas-generating products or ignition-enhancing materials in the inflator and the electrical connections to connect the inflator to a crash-sensing diagnostic system. An ignition-enhancer cup assembly may be provided which includes an ignition enhancing charge material placed inside a stamped metal cup containing numerou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.