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.

Date of Patent:
Nov. 09, 2004

Filed:

Jun. 12, 2001
Applicant:
Inventors:

Mark Shuster, Toledo, OH (US);

Dana M. Combs, Maumee, OH (US);

Donald K. Cohen, Farmington Hills, MI (US);

Assignee:

Dana Corporation, Toledo, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/188 ;
U.S. Cl.
CPC ...
G01N 2/188 ;
Abstract

A method for measuring irregularities on the outer surface of an article employs an apparatus to obtain qualitative information regarding a first portion of the outer surface of the article, which can be used to generate a visual representation of a first portion of the outer surface of the article. Then, the article is moved by a predetermined amount, and the apparatus is again used to generate a visual representation of a second portion of the surface of the article. This process is repeated to obtain a plurality of visual representations that together span across a predetermined amount of the surface of the article. Then, the plurality of visual representations are processed to generate a single comprehensive enlarged visual representation of a relatively large surface area of the article, which is preferably shaded, colored, or otherwise highlighted to illustrate the irregularities that are formed therein. The single comprehensive enlarged visual representation can be used to analyze the nature of such irregularities.


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