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:
Apr. 15, 2014

Filed:

Dec. 07, 2010
Applicants:

Sheng-fuh Chang, Chiayi County, TW;

Chia-chan Chang, Chiayi County, TW;

Po-yu Tsai, Taichung County, TW;

Inventors:

Sheng-Fuh Chang, Chiayi County, TW;

Chia-Chan Chang, Chiayi County, TW;

Po-Yu Tsai, Taichung County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/76 (2006.01); G01T 1/00 (2006.01); G01D 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A battery-free electromagnetic leakage detector includes a substrate, an antenna, a filter circuit electrically connected with the antenna, a clamp circuit electrically connected with the filter circuit, and an indicating member electrically connected with the clamp circuit. Accordingly, the battery-free electromagnetic leakage detector is structurally simple and compact and can detect electromagnetic waves and display the detection without connection with any external power source.


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