Timing belt tensioner with stops controlled by brake device
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United States of America Patent
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Sep 18, 2012
Grant Date -
Jul 9, 2009
app pub date -
Jan 7, 2009
filing date -
Dec 5, 2001
priority date (Note) -
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Abstract
A tensioner having a backstop device which allows free rotation of the pivot arm in a first direction but controls rotation of the pivot arm in a second, opposite direction. The backstop device permits a predetermined, limited amount of free rotation in the second direction and thereafter, employs a braking device to prevent rotation in the second direction if the torque that acts on the pivot art is less than a predetermined threshold.
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