Adaptive pyrotechnic gas generator with tubular chambers, for airbags
US6068291A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2648
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pyrotechnic gas generator (1) for airbags comprising housing (2) which has a side wall (3) closed at its two ends. A traverse plate (6) divides the housing (2) into an upstream part (9) and a downstream part (10). The upstream part (9) contains a tube (16) which seperates, in a gas-tight manner, two combustion chambers (17, 18), each one provided with a pyrotechnic charge (19, 20). An electrical ignition device (5) consists of an initiator with two heads (21, 22) may be incorporated in a switching bridge having four switches linked to a circuit with diodes. Thus, it is possible either to initiate only a single head (21, 22) as required, or to initiate both heads in a programmed time-staggered manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.