Range of motion machine and method and adjustable crank
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United States of America Patent
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Jul 5, 2016
Grant Date -
Sep 3, 2015
app pub date -
Apr 28, 2015
filing date -
May 16, 2011
priority date (Note) -
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Abstract
A range of motion machine having two or four cranks driven directly by motors without exposed gears or chains. The speed and direction of crank rotation and the length of the crank arms may be varied with electronic controls. Crank arm length may be varied whether the crank is stationary or rotating. The cranks and motors are mounted at the top of pedestals which are adjustable in height.
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