Fault flag driver
US4739326A · kind A · utility
3Cited by
21References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1983 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Dec 27, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B25/14
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present apparatus relates to nonvolatile fault flags for use in aircraft. The term "flag" refers to an electromechanical indicator which displays a human-readable signal which identifies a fault. A fault is a malfunction occurring in the aircraft. The term "nonvolatile" refers to the feature that the signal is not lost when electrical power is terminated to the indicators. In addition, apparatus are provided for displaying the first, and only the first, fault signal received by the indicator, and for the prevention of triggering of the indicator by spurious signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.