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.:
Date of Patent:
Sep. 30, 2003
Filed:
Mar. 02, 2000
Mark Tudela, Acworth, GA (US);
David H. Mollenhauer, Beavercreek, OH (US);
Nicholas J. Pagano, Dayton, OH (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
An impact resistant structure is described which comprises a substantially sinusoidally shaped elastically collapsible open-celled fluted layer disposed between but not bonded to constraining layers, whereby in an impact event, the flutes are free to move between the constraining layers and stress concentrations in the collapsing flutes immediately beneath the impacting object are minimized by the absorption of impact forces by neighboring flutes that resiliently collapse in an accordion-like fashion, and return substantially to the original shape after impact without permanent damage to the structure.