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.

Date of Patent:
Sep. 20, 2022

Filed:

Mar. 31, 2018
Applicant:

The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);

Inventors:

Stephen W. Tsai, Palo Alto, CA (US);

Robert Rainsberger, Pleasant Hill, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/12 (2006.01); B32B 7/03 (2019.01); B32B 3/12 (2006.01); B32B 5/26 (2006.01);
U.S. Cl.
CPC ...
B32B 5/12 (2013.01); B32B 3/12 (2013.01); B32B 5/26 (2013.01); B32B 7/03 (2019.01); B32B 2262/106 (2013.01); B32B 2605/18 (2013.01);
Abstract

Disclosed is a sub-laminate module for use in forming a composite laminate structure. The sub-laminate module comprises: a first ply set containing a first ply layer oriented at a first angle and a second ply layer oriented at a second angle, the second angle being equal and opposite the first angle; a second ply set containing a third ply layer oriented at a third angle and a fourth ply layer oriented at a fourth angle, the fourth angle being equal and opposite the third angle; and an acute angle defined by a difference between the first angle and the third angle, wherein the second ply layer is positioned adjacent the third ply layer and the second and third ply layers are both positioned intermediate the first and fourth ply layers, so as to define a double-double helix arrangement. Associated composite laminate structures and methods are also disclosed.


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