Patent ID: 8113404

Claim:
A spring actuated stapling device, comprising: a body; a track along a bottom of the body to guide staples toward a front of the stapling device; a handle having an extension, the handle pivotably attached to the body wherein the handle includes an initial position where the handle is pivoted to a position away from the body and a release position where the handle is pivoted toward the body; a striker movable substantially vertically within the body between an initial rest position above the track and a lowermost position in front of the track, the striker rest position including the handle being in the initial handle position; a power spring disposed within the body linked to the striker; a latch movably attached to the body, the latch releasably engaging the striker to hold the striker in the initial striker position, wherein the latch includes an unstable engagement with the striker whereby the latch, under a disengagement bias, is biased to disengage from the striker when the striker is biased downward by the power spring; a cam movably attached to the body, the cam holding the latch against the disengagement bias, whereby the latch is held from moving within the body as the power spring is deflected and energized; wherein the disengaging bias cause the latch to move in relation to the striker in a pre-release position, as the latch is freed to move, and the striker remains substantially stationary in the body; and wherein at the release position of the handle, the extension of the handle moves the cam whereby the cam frees the latch to move within the body to disengage from the striker under the disengaging bias, and the striker accelerates to the lowermost position under bias of the power spring as the power spring moves to a lower position.