Communications: electrical – Aircraft alarm or indicating systems – Nonairplane
Reexamination Certificate
2006-10-24
2006-10-24
Wu, Daniel (Department: 2612)
Communications: electrical
Aircraft alarm or indicating systems
Nonairplane
C340S407100, C340S435000, C340S965000, C073S17800T, C073S17800T
Reexamination Certificate
active
07126496
ABSTRACT:
A tactile warning system for warning a helicopter pilot of a pre-selected altitude during a landing maneuver includes a collective control arm for control of the aircraft and a tactile warning device operatively connected to the collective control arm. The system includes a radio altimeter for sensing the actual altitude, a computer and keyboard for inputting a pre-selected height above the ground into the computer memory. A signal generator generates a signal indicative of the actual altitude as the aircraft approaches the ground. Then, when the actual altitude is equal to or less then the pre-selected altitude the system activates the tactile device. The warning system indicative of reaching a pre-selected height is also combined with a tactile warning system for avoiding “hot starts” and for avoiding other dangerous conditions.
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Lowe Hauptman & Berner LLP
Safe Flight Instrument Corporation
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