Electromagnetically shielded, flexible bomb suppression device

Abstract

A multi-layered flexible shield comprising an RF shielding layer and a ballistic control layer. The RF shielding layer is constructed of a conductive fabric, preferably a copper / nickel woven fabric, and a flexible conductive coating formed of an emulsion coating with high attenuating capabilities, and preferably an electrically conductive and electromagnetic radiation absorptive coating composition. The ballistic control layer has upper and lower sub-layers made of a woven ballistic material and a middle sub-layer made of sheets of a non-woven ballistic material, the ballistic materials being Aramid or high molecular weight polyethylene fibers. A detachable cover formed of a woven ballistic material covers the lower surface of the conductive fabric and protects the RF shielding layer from abrasion and environmental conditions. The outer edge of the bomb suppression device has a weighted, flexible rim that aids in securing the unit to the surrounding surface, thereby electronically isolating the explosive device.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an electromagnetically shielded, portable device for protection against remote detonation of an explosive device, and also having ballistic shielding capabilities. [0003] 2. Related Art [0004] As used herein, “ballistic materials” means materials that provide blast-fragment mitigation. The construction of ballistic materials is well known in technology. Typical ballistic materials would consist of multiple layers of a woven or non-woven Aramid, such as Kevlar® or Twaron®, or high molecular weight polyethylene, such as Dyneema® or Spectra®, fibers or fabrics or a combination thereof. As used herein, “Aramid” means a manufactured fiber in which the fiberforming substance is a long-chain synthetic polyamide in which at least 85% of the amide (—CO—NH—) linkages are attached directly between two aromatic rings. [0005] Most ballistic materials have been incorporated in clothing such as fla...

AI Technical Summary

Benefits of technology

[0010] It is accordingly a primary object of the present invention to provide a portable ballistic shield that is lightweight, flexible, and can be easily placed over an explosive device.

[0012] It is still another object of the present invention to mitigate the use of RF signals to detonate an explosive device.

[0017] A thin, protective cover formed of a woven ballistic material is provided as a third component to cover the lower surface of the conductive fabric and protect the RF shielding layer from abrasion and environmental conditions.

Problems solved by technology

Other containment systems often include a metal structure, which are of a set size and, due to the weight, not very portable.

Current portable blast suppression devices do not address the protection against remote detonation by a radio frequency (RF) signal.

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