The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 28, 2026

Filed:

Jan. 10, 2025
Applicant:

Milwaukee Electric Tool Corporation, Brookfield, WI (US);

Inventors:

Marcus M. Wechselberger, Milwaukee, WI (US);

Andrew J. Weber, Cudahy, WI (US);

David A. Bierdeman, New Berlin, WI (US);

Jeremy J. Keifenheim, West Bend, WI (US);

Sathish Xavier, Brookfield, WI (US);

Jacob N. Zimmerman, Pewaukee, WI (US);

David C. Graf, Greendale, WI (US);

Garrett J. Kocourek, Milwaukee, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25C 1/04 (2006.01); B25C 1/00 (2006.01); B25C 1/06 (2006.01);
U.S. Cl.
CPC ...
B25C 1/047 (2013.01); B25C 1/005 (2013.01); B25C 1/06 (2013.01);
Abstract

A powered fastener driver including a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece. A driver may include a lifting assembly for providing torque to move the driver blade from the bottom-dead-center position toward the top-dead-center position, the lifting assembly including a rotary lifter configured to be selectively engageable with the driver blade, the rotary lifter having a plurality of lift pins and a roller disposed on at least one of the lift pins, wherein the roller includes a plurality of cam portions defined by cup-shaped recesses having a first radius oriented parallel to a rotational direction of the roller and a second radius perpendicular to the first radius, and wherein the driver blade includes a lift tooth having a crown disposed thereon, the crown configured to be engaged with at least one of the plurality of cam portions.


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