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:
May. 16, 2006
Filed:
Dec. 20, 2004
Applicant:
David L. Hickman, Big Flats, NY (US);
Inventor:
David L. Hickman, Big Flats, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for detecting leaks in a plugged honeycomb structure includes directing a gas at a first end face of the honeycomb structure at a temperature that is different from a temperature of the honeycomb structure and observing a temperature distribution at a second end face of the honeycomb substrate using an infrared detector, wherein the gas directed at the first end face of the honeycomb structure emerges preferentially at the second end face of the honeycomb structure at locations where the cells in the honeycomb structure are defective and appear as thermal spots in the temperature distribution.