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:
Jul. 21, 2015
Filed:
Dec. 02, 2011
Gary E. Georgeson, Tacoma, WA (US);
Kenneth Harlan Griess, Kent, WA (US);
Russell Lee Keller, Maple Valley, WA (US);
Everett A. Westerman, Jr., Auburn, WA (US);
Gary E. Georgeson, Tacoma, WA (US);
Kenneth Harlan Griess, Kent, WA (US);
Russell Lee Keller, Maple Valley, WA (US);
Everett A. Westerman, Jr., Auburn, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A structural repair includes a tell-tale optical witness that allows the health of the repair to be visually monitored. The optical witness includes a stress sensitive fluorescent dye that shows changes in local strain/stress patterns when the repair is subjected to electromagnetic energy of a particular wavelength. The dyes fluoresce more or less strongly as a function of the local stress/strain.