Importance

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Abstract

A powered fastener driver includes a housing defining a cylinder support portion and a motor housing portion, a cylinder within the cylinder support portion, and a piston movable within the cylinder. The piston is moveable from a top-dead-center (TDC) position to a bottom-dead-center (BDC) position along a driving axis. A stroke length is measured between the TDC position and the BDC position along the driving axis. The fastener driver also includes a driver blade attached to the piston for movement along the driving axis from the TDC position toward the BDC position for driving a fastener into a workpiece. The fastener driver includes a lifter operable to move the piston and driver blade, in unison, from the BDC position toward the TDC position. The piston includes a first seal and a second seal located at a distance of at least the stroke length from the first seal.

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First Claim