The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8142874 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 27, 2012

Filed:

Feb. 26, 2009
Applicants:

George Jefferson, Bellbrook, OH (US);

Ronald J. Kerans, Yellow Springs, OH (US);

Triplicane A. Parthasarathy, Beavercreek, OH (US);

Inventors:

George Jefferson, Bellbrook, OH (US);

Ronald J. Kerans, Yellow Springs, OH (US);

Triplicane A. Parthasarathy, Beavercreek, OH (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A planar two material structure comprising a first material having a coefficient of thermal expansion greater than zero and a second material having a second coefficient of thermal expansion greater than zero. The two materials structurally combined in a plurality of repetitive for or six sided unit cells having a combined coefficient of thermal expansion less than the coefficient of thermal expansion of either material alone.


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