Powered fastener driver

US11878400B2 · kind B2 · utility

Assignee

• Milwaukee Electric Tool Corporation · US

Inventors

• Coby A. Nettleton · Milwaukee, US
• Leonard F. Mikat-Stevens · Milwaukee, US
• Alex D. Servais · Slinger, US
• Eric R. Albrecht · Waterford, US
• Jacob N. Zimmerman · Pewaukee, US
• John Michael Jubeck · Towson, US
• Andrew R. Palm · Shorewood, US
• Casey Bonath · Milwaukee, US
• Daniel J. Sheridan · Greendale, US

Key dates

• Filing date: Jan 20, 2022
• Grant date: Jan 23, 2024
• Expiry date: Jan 20, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B25C5/13
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A fastener driver includes a housing defining a head portion and a handle portion, a drive mechanism positioned within the housing, and a firing mechanism. The firing mechanism includes a primary guide member supported within the head portion of the housing, a secondary guide member spaced from the primary guide member and supported within the head portion of the housing, a piston slidable along the primary guide member and the secondary guide member, a driver blade attached to the piston and configured to be movable along a drive axis, and a biasing member configured to move the piston and the driver blade from a top dead center (TDC) position toward a bottom dead center (BDC) position. A lifter assembly is operated by the drive mechanism to return the piston and the driver blade towards the TDC position, against the bias of the biasing member.