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:
Jul. 12, 2011
Filed:
Jul. 01, 2008
Wei-liang Chiang, Chiayi, TW;
Ju-lin Yang, Chiayi, TW;
Rong-faa Wu, Chiayi, TW;
Ching-chuan Kuo, Chiayi County, TW;
Wei-Liang Chiang, Chiayi, TW;
Ju-Lin Yang, Chiayi, TW;
Rong-Faa Wu, Chiayi, TW;
Ching-Chuan Kuo, Chiayi County, TW;
Tong Lung Metal Industry Co., Ltd., Chia-Yi, TW;
Abstract
A re-keyable cylinder lock includes a plug inserted into a lock housing and having a plurality of radial holes connected to a key hole. The lock housing has a first engaging element provided in an inner surface thereof. A limit unit has a second engaging element and is inserted into one of the radial holes located at a predetermined depth of the key hole. The first engaging element engages the second engaging element to limit the plug from rotating when a replacement key which is inserted into the key hole for re-keying does not reach a predetermined depth of the key hole. Incomplete re-keying can therefore be prevented.