Self-aligning sleeved protruding head fasteners with electromagnetic effect protection features

US9169862B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Richard P. Whitlock · Seattle, US
• Peter A. Coronado · Renton, US
• Sean D. Morden · Federal Way, US
• Randall A. Rogers · Auburn, US
• Julie M. Drexler · Brier, US
• John R. Porter · Eagan, US
• Jeffry G. Bickford · Federal Way, US

Key dates

• Filing date: Feb 19, 2013
• Grant date: Oct 27, 2015
• Expiry date: Oct 19, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49948
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A fastener system for composite structure provides electromagnetic energy protection by incorporating a self-aligning head (SAH) fastener having a head with a spherical engaging surface and a shank extending from the head for insertion through a hole in a composite structure and a self-aligning self sealing (SASS) washer having a throat receiving the shank and a spherical mating surface interfacing with the spherical engaging surface of the head.