Patent ID: 7175064

Claim:
A fastener tool comprising: a housing comprising a nosepiece and a handle; a magazine assembly connected to the housing for storing a fastener, the magazine assembly comprising an upper magazine with a rail for receiving a fastener head, a lower magazine fixedly attached to the upper magazine, the lower magazine defining a fastener channel and a pusher channel, and a pusher assembly for pushing the fastener towards the nosepiece, the pusher comprising a carriage which slides along the rail, a pin extending from the carriage extending into the pusher channel, an upper pusher pivotably attached to the pin, the upper pusher having a tab which can be moved by a user, a lower pusher pivotebly attached to the pin, the lower pusher having a contact surface for contacting the fastener and pushing the fastener towards the nosepiece, and a spring for biasing the upper and lower pushers towards the fastener channel; a driving mechanism disposed within the housing for driving the fastener into a workpiece; and a trigger assembly pivotally attached to the housing for activating the driving mechanism; wherein the lower pusher has a camming surface to bypass fasteners inserted into the magazine assembly when the pusher assembly is moved towards the end of the magazine assembly farthest from the nosepiece, and the upper magazine having at least one indentation near the end of the magazine assembly farthest from the nosepiece for latching the upper pusher.