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:
Sep. 30, 2008

Filed:

Dec. 13, 2004
Applicant:

Chung-yue Wang, Taipei, TW;

Inventor:

Chung-Yue Wang, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 23/04 (2006.01); G01B 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is for measuring the diameter of a steel reinforcement rod in a concrete. Therein, a comparing rod is deposed outside of the construction and is corresponding to the steel rod to make the magnification rates of the steel rod and the comparing rod be the same. Then, the comparing rod and the steel rod are irradiated by a radioactive-ray source. And, then, a display is provided to show images of the rods to evaluate the size and the defect of the steel rod by the size and the shape of the comparing rod, so that the examination accuracy can be greatly improved and the examination result can be a reference for evaluating the construction safety.


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