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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Multi-layer metal/shape memory polymer roll-up wing structures for fitment-constrained air vehicles

Invented by: Terry M. Sanderson
Tucson, AZ

Brian J. Gowler
Tucson, AZ

David R. Sar
Corona, CA

Thomas P. McCreery
Tucson, AZ Applicant: Name City State Country Type Sanderson

Originally Assigned to: Raytheon Company
Waltham, MA
[Now assigned to . . .]

Issued:2013-09-10
Filed:2009-05-10
Application No:12463400
Examined by:Dinh; Tien

A laminated wing structure includes at least one layer of metal material and at least one layer of a shape memory polymer (SMP) material. The SMP is heated to a temperature in its glass transition band Tg to roll the wing around the air vehicle into a stored position. The metal layer(s) must be thin enough to remain below its yield point when rolled up. In preparation for launch, the SMP material is thermally activated allowing the strain energy stored in the layer of metal material to return the wing to its deployed position at launch. Once deployed, the SMP cools to its glassy state. The SMP material may be reinforced with fiber to form a polymer matrix composite (PMC). SMP may be used to provide shear strain relief for multiple metal layers. By offloading the motive force required to return the wing to its original deployed position from the SMP to the metal, the polymer does not acquire a permanent set and the wing may be deployed accurately.

[pdf] U.S. Pat. No. 8,528,863

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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