FLIGHT-CONTROL ACTUATORS HAVING A SECONDARY NUT
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United States of America Patent
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Jul 10, 2014
app pub date -
Jan 19, 2012
filing date -
Jan 19, 2011
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Abstract
The invention relates to a flight-control actuator comprising a control screw (1) that engages with a primary nut (2), the actuator also comprising a secondary nut (5) that engages with the control screw in the event the primary nut fails. The primary nut and the secondary nut are remote from one another, the secondary nut moving substantially along a portion of the screw that is usually not fitted with the primary nut.
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