Attachment assembly and drive unit having same
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United States of America Patent
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Dec 20, 2016
Grant Date -
Oct 6, 2011
app pub date -
Aug 31, 2010
filing date -
Nov 10, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A drive unit comprising a guide channel that has a first pulley at one end that rotates about a fixed pulley axis. The drive unit also includes a flexible drive member having a plurality of spaced windows, an attachment assembly moveably attached to the guide channel, and an adjustable pulley assembly coupled to the guide channel that has a second pulley that rotates around a moveable pulley axis that can be adjusted to change the distance between the fixed pulley axis and the moveable pulley axis to take up slack in the flexible drive member.
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