Bi-rotational pump/hydraulic actuator
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United States of America Patent
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Dec 27, 2005
Grant Date -
Sep 12, 2002
app pub date -
Jul 26, 2001
filing date -
Aug 1, 2000
priority date (Note) -
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Abstract
A novel bi-rotational pump adapted to pump fluid in either of two directions by reason of construction inclusive of passageways and an array of check valves and pilot pistons which cooperate in one direction and in another way in the other direction.
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