Patent ID: 8123152

Claim:
A shredder comprising: a housing; a paper shredder mechanism received in the housing and including a motor and cutter elements, the motor rotating the cutter elements in an interleaving relationship for shredding paper sheets fed therein; a tray for holding a stack of paper sheets to be fed into the cutter elements; a moveable paper feed mechanism positioned above the tray, the moveable paper feed mechanism being movable between a lowered position for engaging the stack and a raised position for disengaging from the stack, and a feed driver system constructed to (a) drive the feed mechanism in a feeding direction to feed paper atop the stack to the cutter elements, and (b) move the feed mechanism in an alternating manner between the lowered and raised position such that the feed mechanism alternates between engaging the stack to feed paper and disengaging from the stack to allow the cutter elements to advance the paper therethrough.