Flight lock actuator with dual energy sources
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United States of America Patent
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N/A
Issued Date -
May 15, 2003
app pub date -
Sep 26, 2002
filing date -
Nov 13, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A flight lock actuator that can be powered by two sources of stored energy when aircraft power has been switched off. A mechanical energy storage means and an electrical energy storage means provide a fully redundant energy storage system that stores sufficient energy to complete the actuator's extension stroke when aircraft power is removed. The actuator has a motor control system that limits the stroke velocity for both the extension and retraction strokes, including a damper feature capable of effectively braking the actuator during the back-driven extension stroke.
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