Effort-saving stapler
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United States of America Patent
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-
Oct 20, 2009
Grant Date -
Sep 18, 2008
app pub date -
Jan 31, 2008
filing date -
Mar 15, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An effort-saving stapler includes a shell device and a triggering device installed to the shell device. The triggering device includes a trigger, an operation element and two bearings. An end of the trigger defines a lever for user to hold, and another end of the trigger includes teeth engaging with the shell device. A pivot pin is adapted for inserting through the trigger, the operation element and the bearings so that the pivot pin can drive the operation element to move in the trigger. A limit pin is adapted for inserting through the trigger and the operation element and abuts with the shell device. The pivot pin is regarded as a fulcrum, while the trigger is pressed, the teeth of trigger engage with the shell device so that the pivot pin quickly moves with the trigger.
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