Powered fastener driver

US11654538B2 · kind B2 · utility

Assignee

• Techtronic Power Tools Technology Limited · VG

Inventors

• Tyler H. Knight · Greenville, US
• Miles Riordan Moody · Greenville, US
• J. Luke Jenkins · Williamston, US
• Matthew W. Conner · Greenville, US
• William E. Sadkowski · Anderson, US
• Reid Cheatham · Greenville, US
• Justin Moylan · Easley, US

Key dates

• Filing date: Jun 23, 2021
• Grant date: May 23, 2023
• Expiry date: Dec 10, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B25C1/005
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A pneumatic fastener driver operable in a single sequential mode and a bump-fire mode, and includes a housing, a nosepiece, a trigger moveable between a default position and a depressed position, a contact arm movable relative to the nosepiece between an extended position and a retracted position, and a timeout mechanism operable in the bump-fire mode to inhibit the drive cycle from being initiated in response to inactivity of the contact arm over a preset time interval defined by unwinding of a mainspring that is initially wound in response to the trigger being actuated from the default position to the depressed position. The pneumatic fastener driver also includes a counting assembly having a female barrel pivotably coupled to a pivot shaft of the trigger and driven by the mainspring and a lockout linkage coupled to the female barrel that is capable of interfering with a portion of the trigger.