Temporary clamp up system for sealant squeeze out in lock bolt installations

US9644659B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Mark A. Woods · Renton, US
• John A. Davies · Renton, US
• Gregory John Shish · Bothell, US
• Kwok Tung Chan · Seattle, US
• Eric M. Avakian · Seattle, US
• Dan D. Day · Seattle, US
• Omar J. Pacheo Agosto · Renton, US

Key dates

• Filing date: Mar 17, 2014
• Grant date: May 9, 2017
• Expiry date: Mar 17, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49966
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A joint fastening system employs a lock bolt having a pull stem and locking threads inserted through a bore in a joint having fay sealant between layers. A collar is received over the pull stem to engage the threads, the collar producing tension on the threads to generate clamp force sufficient for fay sealant squeeze out.