John D Comfort

US Patent:

8512808, Aug 20, 2013

Filed:

Apr 28, 2008

Appl. No.:

12/110595

Inventors:

Ali Yousefiani - Arcadia CA, US
John M. Comfort - Corona CA, US
John G. Vollmer - Lomita CA, US
Michael L. Hand - Huntington Beach CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B05D 1/36

US Classification:

427258, 428632

Abstract:

An integrated composite structure with a graded coefficient of thermal expansion (CTE) is formed by selecting a plurality of layers of materials with a graded CTE and using build-up (bottom-up) fabrication approaches such as metal deposition or powder metallurgy to produce a CTE-graded layered composite preform, which is then consolidated and heat treated to create the CTE graded integrated composite billet or near net shape. The integrated composite billet or near net shape is then processed to produce a first surface for attachment of a first structural member having a first CTE and to produce a second surface of for attachment of a second structural member having a second CTE.

US Patent:

20090266870, Oct 29, 2009

Filed:

Apr 23, 2008

Appl. No.:

12/108480

Inventors:

Ali Yousefiani - Arcadia CA, US
John M. Comfort - Corona CA, US
John G. Vollmer - Lomita CA, US
Michael L. Hand - Huntington Beach CA, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

B23K 20/12
B23K 31/02
B64C 1/00

US Classification:

2281121, 228101, 228107, 244131, 244133

Abstract:

An integrated composite structure with a graded coefficient of thermal expansion (CTE) is formed by selecting a plurality of layers of materials with a graded CTE and using joining approaches such as welding, brazing, or solid state bonding to produce a CTE-graded layered composite or near net shape. The integrated composite billet or near net shape is then processed to produce a first surface for attachment of a first structural member having a first CTE and to produce a second surface of for attachment of a second structural member having a second CTE.

US Patent:

20130305727, Nov 21, 2013

Filed:

Jul 23, 2013

Appl. No.:

13/948260

Inventors:

John G. Vollmer - Lomita CA, US
Michael L. Hand - Huntington Beach CA, US
John M. Comfort - Corona CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

F02K 1/00
B22F 5/00

US Classification:

60770, 29897, 419 26

Abstract:

An integrated composite structure with a graded coefficient of thermal expansion (CTE) is formed by selecting a plurality of layers of materials with a graded CTE and using build-up (bottom-up) fabrication approaches such as metal deposition or powder metallurgy to produce a CTE-graded layered composite preform, which is then consolidated and heat treated to create the CTE graded integrated composite billet or near net shape. The integrated composite billet or near net shape is then processed to produce a first surface for attachment of a first structural member having a first CTE and to produce a second surface of for attachment of a second structural member having a second CTE.