US 12,434,367 B2
Powered fastener driver
Jason M. Julius, Waukesha, WI (US); Rosalie C Phillips, Milwaukee, WI (US); Ivan N. Zozulya, Waukesha, WI (US); Jacob N. Zimmerman, Pewaukee, WI (US); Alex D. Servais, Slinger, WI (US); and Mitchell T. Neuhoff, Waukesha, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Aug. 18, 2023, as Appl. No. 18/452,065.
Application 18/452,065 is a continuation in part of application No. 18/178,104, filed on Mar. 3, 2023.
Claims priority of provisional application 63/391,491, filed on Jul. 22, 2022.
Claims priority of provisional application 63/316,510, filed on Mar. 4, 2022.
Prior Publication US 2023/0390906 A1, Dec. 7, 2023
Int. Cl. B25C 1/00 (2006.01); B25C 1/04 (2006.01); B25C 1/06 (2006.01)
CPC B25C 1/047 (2013.01) [B25C 1/008 (2013.01); B25C 1/06 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A powered fastener driver comprising:
a housing;
a cylinder positioned within the housing;
a piston movable within the cylinder from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position;
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;
a lifter operable to move the piston and driver blade, in unison, from the BDC position toward the TDC position;
a drive unit positioned within the housing and operably coupled to the lifter, the drive unit including a motor having a first output shaft that extends along a motor axis;
an inner frame positioned within the housing and including a drive unit housing portion in which at least a portion of the drive unit is received;
a bumper coupled to and extending from the inner frame;
a workpiece contact assembly coupled to the housing and movable from an extended position to a retracted position in response to contact with a workpiece, the workpiece contact assembly including a biasing element that biases the workpiece contact assembly into the extended position;
a magazine configured to receive fasteners, the magazine including a first end and a second end opposite the first end; and
a nosepiece assembly coupled to the first end of the magazine and including a channel from which consecutive fasteners from the magazine are driven;
wherein the workpiece contact assembly is engageable with the bumper in response to an applied force that moves the workpiece contact assembly beyond the retracted position.