Sectional door cable tensioner
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United States of America Patent
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-
Dec 22, 2009
Grant Date -
Feb 9, 2006
app pub date -
Oct 11, 2005
filing date -
Jun 19, 2003
priority date (Note) -
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Abstract
A cable tensioner (20) for a sectional overhead door (D) having a motor-driven counterbalance system (30) including, a spring-loaded axle (31), cable drums (24) carried by the axle, cables (C) attached to and interconnecting the cable drums and the door and forming and releasing cable wraps (29) on the cable drums upon raising and lowering of the door, the cable tensioner having, a tension spring (31) adapted to be mounted on the sectional door having a first end (34) and a second end (35), the first end being adapted to engage the door and the second end being adapted to slidingly engage the cable, wherein the tension spring urges the second end to take up any slack in the cable.
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