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. 22, 2016
Filed:
Mar. 18, 2014
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
John N. Harris, Seattle, WA (US);
Finley Miller, Huntington Beach, CA (US);
Michael R. Swift, Enfield, CT (US);
Assignee:
THE BOEING COMPANY, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/78 (2006.01); G01M 3/04 (2006.01); G01N 31/22 (2006.01);
U.S. Cl.
CPC ...
G01N 21/78 (2013.01); G01M 3/04 (2013.01); G01N 31/225 (2013.01); G01M 3/042 (2013.01); G01N 21/783 (2013.01);
Abstract
A device indicates the location of an air leak in a vacuum bag used to process composite parts. The device includes a layer of material on the inner face of the bag that changes in appearance due to an oxidation-reduction reaction in areas of the layer exposed to oxygen caused by a leak in the bag.