Lightweight protector against micrometeoroids and orbital debris (MMOD) impact using foam substances

US7465500B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Sherwin Yang · Calabasas, US
• Nathan Hoffman · Wind Gap, US
• Adon Delgado, Jr. · Calabasas, US
• Alan V. von Arx · San Fernando, US
• Michael Moriarty · Spring, US
• Kathleen M. Sevener · Los Angeles, US
• Gerard D. Pelletier · Simi Valley, US

Key dates

• Filing date: Oct 28, 2004
• Grant date: Dec 16, 2008
• Expiry date: Dec 17, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/249957
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Methods and apparatus are provided for a shield to protect a surface from the impact of hyper-velocity projectiles. The apparatus comprises a foam material that is configured to cover the surface to be protected and is attached directly to that surface. A coating material is typically disposed on the outer surface of the foam material and may penetrate the foam material to a predetermined depth. The foam material and the coating material are selected to form a composite having predetermined values of sonic velocity, toughness, and thermal conductivity. The composite of foam material and coating material can be significantly lighter in weight than a metal shield having equivalent protective characteristics.