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:
Nov. 17, 2009
Filed:
Dec. 21, 2006
Gary E. Georgeson, Federal Way, WA (US);
Joseph Hafenrichter, Bellevue, WA (US);
David A. Lilienthal, Kent, WA (US);
James C. Kennedy, Renton, WA (US);
Walter J. Harris, Kent, WA (US);
Gary E. Georgeson, Federal Way, WA (US);
Joseph Hafenrichter, Bellevue, WA (US);
David A. Lilienthal, Kent, WA (US);
James C. Kennedy, Renton, WA (US);
Walter J. Harris, Kent, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
Ultrasonic measurements of porosity in manufactured parts or materials are calibrated using reference standards in which parallel holes are drilled in the backside of a body of material. The holes simulate voids in a part which attenuate incident ultrasonic energy. The number, size and location of the holes determine the simulated level of porosity that may be used to calibrate an ultrasonic tester. Multiple reference standards representing different levels of porosity can be produced in the form of individual coupons, or in a single body having multiple groups of holes.