Communications: electrical – Aircraft alarm or indicating systems – Flight alarm
Reexamination Certificate
2007-08-28
2007-08-28
Lee, Benjamin C. (Department: 2612)
Communications: electrical
Aircraft alarm or indicating systems
Flight alarm
C340S407100, C073S117020, C701S120000
Reexamination Certificate
active
10821974
ABSTRACT:
A helicopter tactile accedence warning system includes a control stick and a tactile warning device attached to the control stick. A computer or micro processor and a keyboard for entering a safe temperature profile are also provided as well as a thermocouple for measuring the turbine output temperature. The computer compares the actual temperature versus the safe temperature profile and generates a signal to activate the tactile warning device when the actual temperature falls outside of the safe temperature profile to warn a pilot to abort the start. The tactile warning device is also activated during flight operations when an over stress condition occurs to thereby warn the pilot to take corrective action. In addition, the tactile warning may be activated at a first frequency as an early warning and then at a second frequency as an indication of imminent danger.
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Blount Eric M.
Lee Benjamin C.
Lowe Hauptman & Berner LLP
Safe Flight Instrument Corporation
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