Photoetched-filament pyrotechnic initiator protected against electrostatic discharges
US6408758B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Oct 25, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/13
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to the field of electropyrotechnic initiators comprising a thick-film multifoil circuit.The electrical circuit is photoetched on an insulating support (16). It consists of a resistive first foil having a central part (17) of constant width. This first foil is covered, except on the central part (17), by two conducting areas (28, 29) made of copper. The circuit (18) has an outline consisting of curved lines whose radius is greater than 7×10−4 m and whose shortest distance from the edge of the support (16) is at least 35×10−5 m.Such an initiator has an enhanced electrostatic discharge resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.