High-start spring energized stapler
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United States of America Patent
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Jun 4, 2013
Grant Date -
May 31, 2012
app pub date -
Feb 6, 2012
filing date -
Jan 30, 2006
priority date (Note) -
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Abstract
A spring energized stapler includes a “high start†design wherein a striker has a rest position above the staple track. A handle is pressed to energize a power spring while the striker remains stationary. At a predetermined position of the handle, the striker is released to eject a staple. A subassembly of a cage and the power spring provides a preload to the power spring in the rest position. The subassembly is separately movable from the handle to allow a handle pressing end to move farther than the striker's distance of travel. The handle includes a movable pivot location to enable enhanced motion of the handle pressing end. Alternatively, an optional lever links the striker to the power spring to provide leverage upon the power spring. A release latch may be mounted in front of the striker to be engaged by the lever or the handle.
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