Charles Edward Wiley

US Patent:

8434396, May 7, 2013

Filed:

May 4, 2010

Appl. No.:

12/773538

Inventors:

Charles Schenck Wiley - Charlotte NC, US
Allan D. Bain - Missouri City TX, US

Assignee:

Verco Materials, LLC - Atlanta GA

International Classification:

F41H 5/06
F41H 5/08

US Classification:

89 3601, 89 3605, 2 25

Abstract:

A ballistic tile for use in an imbricated pattern of like ballistic tiles to achieve coverage of a protected area by the imbricated pattern, while having rounded corners to limit the potential for spalling on ballistic impact. The ballistic tile may include a strike face that is generally undulating to laterally deflect at least a portion of the impact force, and to induce turning of the ballistic projectile on impact to further distribute the impact force. The ballistic tile may also include one or more features on an obverse and reverse side thereof that, when arranged in an imbricated pattern, limit lateral motion of the tiles on ballistic impact, and/or laterally transmit the energy of the projectile for deflection and absorption thereof.

US Patent:

20130334723, Dec 19, 2013

Filed:

Dec 28, 2011

Appl. No.:

13/976724

Inventors:

Charles Schenck Wiley - Charlotte NC, US
Robert F. Speyer - Atlanta GA, US

International Classification:

C04B 35/563
C04B 33/32

US Classification:

264 43, 4272133

Abstract:

Disclosed is a method for fabricating a solid article from a boron carbide powder comprising boron carbide particles that are coated with a titanium compound. Further disclosed herein are the unique advantages of the combined use of titanium and graphite additives in the form of water soluble species to improve intimacy of mixing in the green state. The carbon facilitates sintering, whose concentration is then attenuated in the process of forming very hard, finely dispersed Ti B2 phases. The further recognition of the merits of a narrow particle size distribution B4C powder and the use of sintering soak temperatures at the threshold of close porosity which achieve post-HlP ed microstructures with average grain sizes approaching the original median particle size. The combination of interdependent factors has led to B4C-based articles of higher hardness than previously reported.

US Patent:

20140038808, Feb 6, 2014

Filed:

Jul 31, 2013

Appl. No.:

13/955898

Inventors:

Charles Schenck WILEY - Charlotte NC, US
Robert F. SPEYER - Atlanta GA, US

International Classification:

B28B 11/24
C04B 35/565

US Classification:

501 90, 501 91, 264625, 264604

Abstract:

A process for the fabrication of a SiC-based article that includes preparing an aqueous suspension with SiC powder, a titanium source, a carbon source and boron carbide powder, spray drying the mixture to obtain a powder, preparing a green body from the powder, applying heat treatment to the green body in a pyrolysis/thermolysis step, pressureless sintering the green body, optimally followed by HIPing for further densification.

US Patent:

20210147300, May 20, 2021

Filed:

Jan 27, 2021

Appl. No.:

17/159231

Inventors:

Charles Schenck WILEY - Charlotte NC, US
Robert F. SPEYER - Atlanta GA, US

International Classification:

C04B 35/563
C04B 35/626
C04B 35/628
C04B 35/632
C04B 35/634
C04B 35/645
C04B 33/32

Abstract:

Disclosed is a method for fabricating a solid article from a boron carbide powder comprising boron carbide particles that are coated with a titanium compound. Further disclosed herein are the unique advantages of the combined use of titanium and graphite additives in the form of water soluble species to improve intimacy of mixing in the green state. The carbon facilitates sintering, whose concentration is then attenuated in the process of forming very hard, finely dispersed TiB2 phases. The further recognition of the merits of a narrow particle size distribution B4C powder and the use of sintering soak temperatures at the threshold of close porosity which achieve post-HIPed microstructures with average grain sizes approaching the original median particle size. The combination of interdependent factors has led to BC-based articles of higher hardness than previously reported.

US Patent:

20180170814, Jun 21, 2018

Filed:

Nov 30, 2017

Appl. No.:

15/827320

Inventors:

Charles Schenck WILEY - Charlotte NC, US
Robert F. SPEYER - Atlanta GA, US

International Classification:

C04B 35/563
C04B 35/626
C04B 35/628
C04B 35/632
C04B 35/634
C04B 35/645
C04B 33/32

Abstract:

Disclosed is a method for fabricating a solid article from a boron carbide powder comprising boron carbide particles that are coated with a titanium compound. Further disclosed herein are the unique advantages of the combined use of titanium and graphite additives in the form of water soluble species to improve intimacy of mixing in the green state. The carbon facilitates sintering, whose concentration is then attenuated in the process of forming very hard, finely dispersed TiBphases. The further recognition of the merits of a narrow particle size distribution BC powder and the use of sintering soak temperatures at the threshold of close porosity which achieve post-HIPed microstructures with average grain sizes approaching the original median particle size. The combination of interdependent factors has led to BC-based articles of higher hardness than previously reported.