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:
May. 29, 2018

Filed:

Mar. 22, 2016
Applicant:

Te-yu Chen, Pingtung, TW;

Inventor:

Te-Yu Chen, Pingtung, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B 59/00 (2006.01); E05B 17/22 (2006.01); E05C 1/08 (2006.01); E05B 63/00 (2006.01); E05B 17/20 (2006.01); E05C 9/00 (2006.01);
U.S. Cl.
CPC ...
E05B 17/22 (2013.01); E05C 1/08 (2013.01); E05B 17/2003 (2013.01); E05B 17/2007 (2013.01); E05B 63/00 (2013.01); E05C 9/00 (2013.01); E05Y 2900/132 (2013.01);
Abstract

The anti-theft device is configured in a door lock, and contains a first blocking piece, a second blocking device, a positioning piece, and a lever. The first blocking piece contains a first section and a second section bended and extended perpendicularly from the first section. The first section has a first through hole and a second through hole. The lever is engaged by a lock heart of the door lock. When the door lock is locked, the lock heart is turned to engage the lever so that the lever drives the first blocking piece downward by its first through hole. The second section of the first blocking piece as such blocks a lock tongue of the door lock so that the door lock cannot be opened without using key.


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