Safety apparatus for spring powered staplers

Elongated-member-driving apparatus – With means to move or guide member into driving position – Including supply magazine for constantly urged members

Reexamination Certificate

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Details

C227S008000, C227S120000, C227S134000

Reexamination Certificate

active

07909218

ABSTRACT:
This invention provides a safety apparatus for a spring powered stapler, the safety apparatus comprising a lock plate holding up a power spring for storing energy when in a first position, and releasing the power spring when the lock plate being moved substantially horizontally to a second position, a safety pin substantially vertically movable between a third and fourth position, the safety pin being in the third position when the stapler is not pressed against an object, and the safety pin being in the fourth position when the stapler is pressed against an object, wherein when in the third position, the safety pin stops the lock plate from being moved to the second position, and when in the fourth position, the safety pin makes room for the lock plate to be moved to the second position.

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patent: 2009/0159632 (2009-06-01), Jiang

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