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:
Aug. 06, 2013
Filed:
May. 16, 2006
Leslie Eugene Hampton, Corning, NY (US);
Zhiqiang Shi, Painted Post, NY (US);
Leslie Eugene Hampton, Corning, NY (US);
Zhiqiang Shi, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Both a method and apparatus for determining internal discontinuities or inhomogeneities in a green or fired ceramic honeycomb structure is provided. In the method of the invention, an ultrasonic transmitter is positioned adjacent to, but not in contact with, the honeycomb structure. The transmitter propagates an ultrasonic wave, of preferably less than 5 MHz, through the honeycomb structure which is received, filtered and analyzed to determine the presence or absence of internal discontinuities or inhomogenieties. The ultrasonic transmitter generates an ultrasonic wave of less than five megahertz to provide a relatively high signal-to-noise ratio in the ultrasonic wave propagated through the structure. The device of the invention may include an array of ultrasonic transmitters and receivers that generate simultaneously transmit and receive ultrasonic signals throughout the ceramic honeycomb structure as it is moved relative to the array such that the structure is quickly and efficiently scanned for discontinuities or inhomogenieties.