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:
Oct. 01, 2019
Filed:
Dec. 20, 2013
European Aeronautic Defence and Space Company Eads France, Paris, FR;
Stéphane Auffray, Saint Lyphard, FR;
Hubert Voillaume, Issy les Moulineaux, FR;
AIRBUS, Blagnac, FR;
Abstract
An ultrasound device for checking the quality of a composite material structure during the production cycle. Preferably, the device is incorporated into a production tooling performing the LRI process in which the composite material structure is placed between two molds during the production cycle. A layer of piezoelectric material is deposited on the face of one of the molds, opposite the face which is in contact with the structure. One face of an electrically insulating flexible material film is placed against the outer face of the piezoelectric material layer. The face of the film further includes conductive pads in contact with the piezoelectric material layer. Each pad is energized by electric voltage applied by a conductive strip. Each pad forms an independent ultrasonic transducer with the region of the piezoelectric material layer opposite of its placement.