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. 06, 2010
Filed:
Aug. 08, 2006
Cyril Pellaton, Colombier, CH;
Ronald Bruce Blair, Flower Mound, TX (US);
Jerry Edwards, Irving, TX (US);
John Mouser, Plano, TX (US);
Cyril Pellaton, Colombier, CH;
Ronald Bruce Blair, Flower Mound, TX (US);
Jerry Edwards, Irving, TX (US);
John Mouser, Plano, TX (US);
De La Rue International Limited, Hampshire, GB;
Abstract
Document inspection system comprising a transport system for transporting documents along a transport path () through an inspection station. At least one ultrasonic inspection apparatus at the inspection station, the apparatus including ultrasonic transmitting and receiving transducers () arranged on opposite sides of the transport path, and a processing system for monitoring ultrasonic signals received by the receiving transducer. An ultrasonic absorbing material () is provided around the transducers and facing the transport path for absorbing ultrasound reflected by a document. Document guide apparatus (), having a lower coefficient of friction than the absorbing material, extends partially over the absorbing material () so as to prevent documents contacting the absorbing material in use while leaving the absorbing material exposed to the transport path at least adjacent the transducers.