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:
Jun. 09, 2009
Filed:
Apr. 07, 2008
Chung-ming Tseng, Taichung, TW;
Tien-chun Lan, Taichung, TW;
Chung-Ming Tseng, Taichung, TW;
Tien-Chun Lan, Taichung, TW;
Sun-Castle Global Precision Technology Co., Ltd., Taichung, TW;
Abstract
An electronic lock includes a mechanism comprising a drive assembly comprising a pinion, a gearwheel including a peripheral flange having openings with a curved edge; a clutch comprising a ring including risers in the openings to engage with the curved edges, a first sleeve in the ring and including a rear projection, a driven member including a groove disengaged from the corresponding projection when the lock is locked, and a first spindle, and a spring put on the first sleeve and urged against the driven member; a second sleeve securely urged against the first sleeve; and a second spindle securely passing the second sleeve into the first sleeve. Turning the pinion will turn the gearwheel, push the risers rearward by sliding along the curved edges, move the ring rearward to fit the projection into the groove, and compress the spring such that turning an outer handle will unlock the lock.