The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2015
Filed:
Mar. 12, 2014
Charles M. Roland, Waldorf, MD (US);
Daniel M. Fragiadakis, Alexandria, VA (US);
Raymond M. Gamache, Indian Head, MD (US);
Charles M. Roland, Waldorf, MD (US);
Daniel M. Fragiadakis, Alexandria, VA (US);
Raymond M. Gamache, Indian Head, MD (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An armor system with a composite laminate having at least four alternating layers (two bi-layers) of a first material and a second material, the first material having a lower acoustic impedance than the second material. The first material is a viscoelastic polymer with a glass transition temperature less than the expected operational temperature range, and the second material can be a hard material such as steel, aluminum, or ceramic. The laminate can include many alternating layers of elastomer and hard material, and can be adhered or affixed to a thicker armor substrate. The second material layer can be a layer of hollow or solid spheres. Additional protective elements such as front surface hemispheres or conical projections, and corrugated panels can be added to improve resistance to armor piercing rounds, explosively formed penetrators, or other threats.