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US 12,515,303 B2Granted
Powered fastener driver
AssigneeMilwaukee Electric Tool Corporation
InventorsMitchell T. Neuhoff, Mark C. Hughes, Bradley S. Houskamp, Ivan N. Zozulya, Jacob N. Zimmerman
Life of this patent
Estimating the term…
Abstract
A powered fastener driver including a piston movable within the inner cylinder from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position. The piston has a diameter of less than 45 mm, and a stroke length of the piston between the TDC position and the BDC position measuring greater than 60 mm and less than 90 mm.
Claims20
A powered fastener driver comprising:
- a housing;
- a nosepiece extending from the housing;
- an inner cylinder within the housing;
- a piston movable within the inner cylinder from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position, the piston having a stroke length of the piston between the TDC position and the BDC position measuring greater than 60 mm and less than 90 mm;
- a driver blade attached to the piston for movement therewith along a driving axis from the TDC position toward the BDC position for driving a fastener into a workpiece, the driver blade including, a first end, a second end, and a plurality of drive teeth extending from one side between the first end and the second end;
- a lifter operable to move the piston and driver blade from the BDC position toward the TDC position, wherein the lifter includes a body and a plurality of drive pins supported upon the body, wherein each of the plurality of drive pins is configured to engage one of the plurality of drive teeth;
- a drive unit operably coupled to the lifter to provide torque thereto, causing the lifter to rotate;
- a canister magazine coupled to the nosepiece in which collated fasteners are receivable;
- and
- a fastener delivery mechanism disposed adjacent the nosepiece for individually transferring collated fasteners in the canister magazine to a driver channel in the nosepiece.
7 more elements
A powered fastener driver comprising:
- a housing;
- a nosepiece extending from the housing;
- a workpiece contact bracket at least partially surrounding the nosepiece, wherein the workpiece contact bracket is movable relative to the nosepiece;
- an inner cylinder within the housing;
- a piston movable within the inner cylinder from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position, the piston having a stroke length of the piston between the TDC position and the BDC position measuring greater than 60 mm and less than 90 mm;
- a driver blade attached to the piston for movement therewith along a driving axis from the TDC position toward the BDC position for driving a fastener into a workpiece, the driver blade including, a first end, a second end, a plurality of drive teeth extending from one side between the first end and the second end, and an actuator tooth;
- a lifter operable to move the piston and driver blade from the BDC position toward the TDC position, wherein the lifter includes a body and a plurality of drive pins supported upon the body, wherein each of the plurality of drive pins is configured to engage one of the plurality of drive teeth;
- a drive unit operably coupled to the lifter to provide torque thereto, causing the lifter to rotate;
- and
- a fastener delivery mechanism disposed adjacent the nosepiece, wherein the fastener delivery mechanism is actuated by the actuator tooth on the driver blade as the driver blade is returned to a ready position to load a fastener into the nosepiece.
7 more elements
A powered fastener driver comprising:
- a housing;
- an inner cylinder within the housing;
- a piston movable within the inner cylinder from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position, the piston having a stroke length of the piston between the TDC position and the BDC position measuring greater than 60 mm and less than 90 mm;
- a driver blade attached to the piston for movement therewith along a driving axis from the TDC position toward the BDC position for driving a fastener into a workpiece, the driver blade including, a first end, a second end, and a plurality of drive teeth extending from one side between the first end and the second end, the first end being cylindrical and defining a striker face that is configured to strike and drive a fastener;
- a lifter operable to move the piston and driver blade from the BDC position toward the TDC position, wherein the lifter includes a body and a plurality of drive pins supported upon the body, wherein each of the plurality of drive pins is configured to engage one of the plurality of drive teeth;
- and
- a drive unit operably coupled to the lifter to provide torque thereto, causing the lifter to rotate.
4 more elements
Dependencies are inferred from the claim text.