News Column

"Gradient Nanoparticle-Carbon Allotrope-Polymer Composite Material" in Patent Application Approval Process

February 13, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- A patent application by the inventors Greenhill, Zachary R. (Rye, NY); Belbruno, Joseph J. (Hanover, NH), filed on September 24, 2013, was made available online on January 30, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application is assigned to Greenhill Antiballistics Corporation.

The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates to protective materials and, more specifically, to a material that diminishes the effect of a shock wave.

"Material designs for handling the impact of an external stimulus, such as a blast, as shock wave or projectiles, include, for example, woven fabrics, ceramic materials, and composite systems. Kevlar.RTM., Zylon.RTM., Armos.RTM., Spectra.RTM. are commercially available fabrics made from high-strength fibers. Another material is ballistic steel, which is comprised of hardened high tensile steel, woven into fiber form. Further, boron carbide can be used as a material, for example, in the production of body armor.

"Ceramic materials, in particular ceramic metal composites have found utility in light weight body armor.

"Existing systems attempt to attenuate shock waves by presenting a high mass material between the source of the shock wave and the thing being protected. The high mass material absorbs some of the shock wave energy, thereby resulting in a shock wave of decreased amplitude. However, while the wave's amplitude may be decreased, it is only decreased by a certain amount and my still do considerable damage.

"Therefore, there is a need for a material that disrupts a shock wave, thereby lessening its effect."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "The disadvantages of the prior art are overcome by the present invention which, in one aspect, is a shock wave attenuating material that includes a substrate layer. A plurality of shock attenuating layers is disposed on the substrate layer. Each of the plurality of shock attenuating layers includes a gradient nanoparticle layer including a plurality of nanoparticles of different diameters that are arranged in a gradient from smallest diameter to largest diameter and a graphitic layer disposed adjacent to the gradient nanoparticle layer. The graphitic layer includes a plurality of carbon allotrope members suspended in a matrix.

"In another aspect, the invention is a helmet that includes a helmet member configured to be worn by a user. A plurality of shock attenuating layers is applied to the helmet member. Each shock attenuating layer includes a gradient nanoparticle layer including a plurality of nanoparticles of different diameters that are arranged in a gradient from smallest diameter to largest diameter; and a graphitic layer disposed adjacent to the gradient nanoparticle layer, the graphitic layer including a plurality of carbon allotrope members suspended in a matrix.

"In another aspect, the invention is an armor unit that includes a structural element, an armor plate and a plurality of shock attenuating layers. The plurality of shock attenuating layers is disposed in a predetermined relationship with at least one of the structural element and the armor plate. Each shock attenuating layer includes a gradient nanoparticle layer including a plurality of nanoparticles of different diameters that are arranged in a gradient from smallest diameter to largest diameter; and a graphitic layer disposed adjacent to the gradient nanoparticle layer, the graphitic layer including a plurality of carbon allotrope members suspended in a matrix.

"In yet another aspect, the invention is a personal body armor unit that includes a ceramic plate, a high mass member and a nanoparticle shock wave attenuating material layer. The high mass member is disposed adjacent to the ceramic plate. The nanoparticle shock wave attenuating material layer is disposed on the high mass member.

"The nanoparticle shock wave attenuating material layer can be disposed between the high mass member and the ceramic plate. Similarly, the nanoparticle shock wave attenuating material layer can be disposed outside of the high mass member or the ceramic plate or both. It is understood that any combination of these configurations fall within the scope of the invention.

"These and other aspects of the invention will become apparent from the following description of the preferred embodiments taken in conjunction with the following drawings. As would be obvious to one skilled in the art, many variations and modifications of the invention may be effected without departing from the spirit and scope of the novel concepts of the disclosure.

BRIEF DESCRIPTION OF THE FIGURES OF THE DRAWINGS

"FIG. 1 is a schematic diagram of one embodiment of a shock wave attenuating material.

"FIG. 2A is a schematic diagram of one embodiment of a gradient nanoparticle layer.

"FIG. 2B is a schematic diagram of one embodiment of a graphitic layer.

"FIG. 3 is a schematic diagram of the embodiment shown in FIG. 1, demonstrating shock wave attenuation.

"FIG. 4 is a schematic diagram of one embodiment of a helmet.

"FIG. 5 is a schematic diagram of one embodiment of an armor unit.

"FIG. 6 is a schematic diagram of one embodiment of a body armor unit.

"FIG. 7 is a schematic diagram of one embodiment of a body armor unit.

"FIG. 8 is a schematic diagram of one embodiment of a body armor unit."

URL and more information on this patent application, see: Greenhill, Zachary R.; Belbruno, Joseph J. Gradient Nanoparticle-Carbon Allotrope-Polymer Composite Material. Filed September 24, 2013 and posted January 30, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=2473&p=50&f=G&l=50&d=PG01&S1=20140123.PD.&OS=PD/20140123&RS=PD/20140123

Keywords for this news article include: Nanoparticle, Nanotechnology, Emerging Technologies, Greenhill Antiballistics Corporation.

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Source: Politics & Government Week


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