Flight instrument flag annunciator
US4821669A · kind A · utility
0Cited by
11References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Nov 30, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flight instrument flag annunciator has a motor, a flag mechanism having a flag shutter driven by the motor, a tension spring for rotating the flag shutter in a counterclockwise direction, a drive cord connected to the motor for rotating the flag shutter in a clockwise direction, support members for supporting the motor and the flag mechanism, and guide members for guiding the drive cord between the motor and the flag mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.