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. 11, 1995
Filed:
Sep. 23, 1993
Yaw-Shin Fann, Chiayi City, TW;
Ming-Shyng Chiou, Chiayi City, TW;
Tong-Lung Metal Industry Co., Ltd., Chiayi City, TW;
Abstract
A cylinder lock includes a lock shell which confines a cylindrical hole and a rotatable cylindrical key plug provided within the hole of the lock shell and formed with a longitudinally extending keyway. The key plug is further formed with a plurality of first bores which receive a lower tumbler pin of a respective first tumbler set, while the lock shell is further formed with a plurality of second bores which receive an upper tumbler pin of a respective first tumbler set. A plug retaining sleeve has a front portion which extends into the hole of the lock shell and which confines a hollow space for receiving a rear portion of the key plug. The rear portion of the key plug and the front portion of the plug retaining sleeve are respectively formed with third and fourth radially aligned bores which receive a lower tumbler pin of a second tumbler set.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile