Fastener cap driving tool with self-reversing lead screw cap feeder

A cap feeder for a fastener cap driving tool, the cap feeder comprising:

• a self-reversing lead screw;
• a feed pawl configured to be driven by the self-reversing lead screw;
• a first motor in mechanical communication with the self-reversing lead screw;
• a guide exhibiting a pivot point and an opening;
• a spring;
• a mounting bracket;
• the first motor is attached to a first side of the mounting bracket, and the self-reversing lead-screw is attached to an opposite second side of the mounting bracket;
• the mounting bracket is attached to the guide proximal to the pivot point;
• and
• the spring biases the feed pawl into engagement with a collated strip of caps.

A fastener cap driving tool, comprising:

• an outer housing;
• a controller;
• a working cylinder that includes a movable piston therewithin, and a driver in mechanical communication with the movable piston;
• a handle portion including a trigger;
• a storage chamber that is in fluidic communication with the working cylinder, the storage chamber being charged with a pressurized gas, and the pressurized gas causing the movable piston and the driver to move through a driving stroke toward a driven position, wherein the pressurized gas is not vented to atmosphere after the driving stroke, but instead the pressurized gas is re-used for a plurality of operating cycles;
• a first magazine for feeding a collated strip of fasteners;
• a second, separate magazine for feeding a collated strip of caps;
• a removably attachable battery;
• and
• a cap feeder sub-assembly, comprising:
• a self-reversing lead screw;
• a feed pawl configured to be driven by the self-reversing lead screw;
• a first motor in mechanical communication with the self-reversing lead screw;
• a mounting bracket including a sensor;
• and
• wherein when the driving stroke occurs, one fastener from the collated strip of fasteners pierces one cap from the collated strip of caps, thereby adhering one fastener and one cap to a surface.

A method for driving a fastener and a cap onto a surface, the method comprising:

• providing a fastener cap driving tool that includes:
• an outer housing;
• a working cylinder that includes a movable piston therewithin, and a driver in mechanical communication with the movable piston;
• a storage chamber that is in fluidic communication with the working cylinder, the storage chamber being charged with a pressurized gas, and the pressurized gas causing the movable piston and the driver to move through a driving stroke toward a driven position, wherein the pressurized gas is not vented to atmosphere after the driving stroke, but instead the pressurized gas is re-used for a plurality of operating cycles;
• a first magazine for feeding a collated strip of fasteners;
• a second, separate magazine for feeding a collated strip of caps;
• a removably attachable battery;
• and
• a cap feeder sub-assembly, comprising:
• a self-reversing lead screw;
• a feed pawl configured to be driven by the self-reversing lead screw;
• and
• a first motor in mechanical communication with the self-reversing lead screw;
• and
• initiating the driving stroke, wherein one fastener from the collated strip of fasteners pierces one cap from the collated cap of strips, thereby adhering one fastener and one cap to a surface.