Fastener driving device
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United States of America Patent
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-
Aug 13, 2013
Grant Date -
Sep 24, 2009
app pub date -
Feb 23, 2009
filing date -
May 12, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A fastener driving device includes a fastener driver, a magazine for carrying a supply of fasteners to the fastener driver, a spring that moves the fastener driver through a drive stroke, and a motor configured to move the fastener driver through a return stroke. The motor is operable upon completion of the drive stroke, to move the fastener driver partially through the return stroke a predetermined amount to partially pre-compress the spring. The motor is further operable to fully compress the spring after receiving a signal for the drive stroke.
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