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.
Patent No.:
Date of Patent:
Jun. 09, 2026
Filed:
Jun. 02, 2022
Milwaukee Electric Tool Corporation, Brookfield, WI (US);
Mitchell T. Neuhoff, Waukesha, WI (US);
Jason M. Julius, Waukesha, WI (US);
David A. Bierdeman, New Berlin, WI (US);
Logan M. Hietpas, Glendale, WI (US);
Jacob N. Zimmerman, Pewaukee, WI (US);
Jeremy J. Keifenheim, West Bend, WI (US);
MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US);
Abstract
A powered fastener driver includes a housing, a cylinder supported by the housing, and a moveable piston positioned within and moveable along a driving axis of the cylinder. The piston includes a circumferential groove on an outer peripheral surface thereof. A driver blade is attached to the piston and moveable therewith between a top-dead-center (TDC) position and a driven or bottom-dead-center (BDC) position. A seal assembly is received in the circumferential groove. The seal assembly is configured to create a seal between the piston and the cylinder. The seal assembly includes a biasing member and a seal member positioned radially outwardly of the biasing member relative to the driving axis.