Electro-pyrotechnic initiator built around a complete printed circuit
US6389972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/188
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an initiator for a pyrotechnic gas generator intended for motor vehicle safety. The initiator (2) is built from a circuit support (10) on which conductive strips are printed which include electromagnetic protection and the ends of which are joined together by a resistive element covered with a thermosensitive charge (6). The conductive strips are connected to an electric cable (3). The support (10) is coated in a cylindrical overmoulded insulation (4, 5). A fragmentable cylindrical cap (8) containing an igniter composition (9) forms, together with the initiator (2), an igniter (1) for pyrotechnic generators intended for motor vehicle safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.