Impact sensor for vehicle safety restraint system
US5430334A · kind A · utility
19Cited by
18References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1992 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Sep 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/147
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vehicle restraint system that includes an impact sensor coupled by fiber optics to an igniter for inflating an air bag. The impact sensor includes a permanent magnet disposed within a cavity and biased by magnetic force toward one end of the cavity, motion of the magnet in the cavity being sensed by a weigand wire or Hall sensor for igniting the air bag. Facility is disposed externally of the cavity for selectively adjusting the bias of the sensor and/or moving the magnet into proximity with the Hall effect or weigand wire sensor to test operative condition of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.