Continuous force actuator
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United States of America Patent
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Sep 14, 1982
Issued Date -
N/A
app pub date -
Aug 14, 1980
filing date -
Aug 14, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A continuous force actuator having a housing, a pair of slidably mounted T-shaped pistons therein and a plurality of resilient, hollow pressure tubes surrounding each of the pistons. The insertion of fluid into or the removal of fluid from the resilient tubes alters the position of the pistons relative to the housing and thereby controls the continuous force applied by the actuator. By operably connecting the continuous force actuator between opposite components of, for example, a variable configurated airfoil, continuous control of the airfoil configuration can be performed in a reliable and accurate manner.
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