James D Dobbs

US Patent:

20200326160, Oct 15, 2020

Filed:

Jun 4, 2020

Appl. No.:

16/892366

Inventors:

- Chicago IL, US
Dennis Lynn Coad - Madison AL, US
James Ross Dobbs - Huntsville AL, US
Ali Yousefiani - Tustin CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

F41H 5/04
C22C 29/14
C22C 29/10

Abstract:

A compositionally-graded structure including a body having a first major surface and a second major surface opposed from the first major surface along a thickness axis, the body including a metallic component and a ceramic component, wherein a concentration of the ceramic component in the body is a function of location within the body along the thickness axis, wherein transitions of the concentration of the ceramic component in the body are continuous such that distinct interfaces are not macroscopically established within the body, and wherein the concentration of the ceramic component is at least 95 percent by volume at at least one location within the body along the thickness axis.

US Patent:

20200143951, May 7, 2020

Filed:

Nov 2, 2018

Appl. No.:

16/179828

Inventors:

- Chicago IL, US
Dennis Lynn Coad - Madison AL, US
James Ross Dobbs - Huntsville AL, US
William Atwell - Houston TX, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

G21F 1/10
G21F 3/00
G21F 1/12
B64G 1/54
B29C 70/02
B29C 70/88

Abstract:

Radiation-shielding composite materials and their methods of manufacture. Such methods may include adding a metal hydride to a hardenable matrix precursor, adding a reinforcing material to the hardenable matrix precursor, and hardening the matrix precursor to form a composite material that incorporates the reinforcing material and the metal hydride in a solid matrix. The resulting radiation-shielding composite materials are configured to attenuate incident radiation, and may be used in the construction of panels, laminate structures, buildings, and aerospace vehicles, among others.

US Patent:

20190072365, Mar 7, 2019

Filed:

Sep 5, 2017

Appl. No.:

15/695310

Inventors:

- Chicago IL, US
Dennis Lynn Coad - Madison AL, US
James R. Dobbs - Huntsville AL, US
Ali Yousefiani - Tustin CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

F41H 5/04

Abstract:

A compositionally-graded structure including a body having a first major surface and a second major surface opposed from the first major surface along a thickness axis, the body including a metallic component and a ceramic component, wherein a concentration of the ceramic component in the body is a function of location within the body along the thickness axis, wherein transitions of the concentration of the ceramic component in the body are continuous such that distinct interfaces are not macroscopically established within the body, and wherein the concentration of the ceramic component is at least 95 percent by volume at at least one location within the body along the thickness axis.