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. 16, 2008
Filed:
Oct. 20, 2005
Christopher M. Vaccaro, Ofallon, MO (US);
David Lilienthal, Kent, WA (US);
Christopher M. Vaccaro, Ofallon, MO (US);
David Lilienthal, Kent, WA (US);
Boeing Company, Chicago, IL (US);
Abstract
An ultrasonic inspection reference standard for composite materials having porosity may include a member, having at least one thickness and defined by a plurality of holes, that is manufactured from a fiber-free polymer resin. The ultrasonic inspection reference standard may have similar acoustic properties to prior art, porous, fiber-reinforced, composite reference standards, at lower manufacturing cost. A photo-polymer resin reference standard, having at least one thickness and defined by a plurality of holes, may be created using a stereo lithography process. The polymer resin reference standard may replace more costly porous, fiber-reinforced, composite reference standards. The ultrasonic inspection reference standard, manufactured from a polymer resin, may be used for ultrasonic inspection of porous, fiber-reinforced composite parts in the aircraft industry and in other non-aircraft applications.