US 12,459,089 B2
Powered fastener driver
Jacob N. Zimmerman, Pewaukee, WI (US); Grace Whitmore, Palatine, IL (US); Marcus Wechselberger, Milwaukee, WI (US); Casey D. Garces, Milwaukee, 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 Oct. 24, 2023, as Appl. No. 18/492,822.
Application 18/492,822 is a continuation of application No. 17/578,651, filed on Jan. 19, 2022, granted, now 11,801,590.
Application 17/578,651 is a continuation of application No. 17/219,044, filed on Mar. 31, 2021, granted, now 11,260,512, issued on Mar. 1, 2022.
Claims priority of provisional application 63/040,761, filed on Jun. 18, 2020.
Claims priority of provisional application 63/027,391, filed on May 20, 2020.
Claims priority of provisional application 63/002,565, filed on Mar. 31, 2020.
Prior Publication US 2024/0051102 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B25C 1/00 (2006.01)
CPC B25C 1/005 (2013.01) [B25C 1/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fastener driver comprising:
a magazine assembly configured to receive fasteners;
a nosepiece assembly including a channel from which consecutive fasteners from the magazine assembly are driven;
a pusher assembly slidably coupled to the magazine assembly, the pusher assembly configured to bias the fasteners within the magazine assembly toward the channel, the pusher assembly including a first portion and a second portion selectively coupled for movement with the first portion, the pusher assembly adjustable between a first state in which the first portion and the second portion are coupled for movement together toward the channel, and a second state in which the first portion moves relative to the second portion toward the channel;
a workpiece contact element movable relative to the nosepiece assembly between an extended position and a retracted position; and
a dry-fire lockout assembly including
a blocking member coupled to the magazine assembly, and
a lockout member selectively engageable with the blocking member for moving the blocking member from a first position in which the workpiece contact element is configured to slide past the blocking member, and a second position in which the blocking member inhibits movement of the workpiece contact element when a predetermined number of fasteners remain in the magazine assembly,
wherein the lockout member is integral with the second portion of the pusher assembly, and
wherein the pusher assembly is configured to transition from the first state to the second state after the predetermined number of fasteners remain in the magazine assembly.