Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ming-Ying Guo0
Xiu-Feng Liu0
Date of Patent
January 18, 2011
Patent Application Number
12560407
Date Filed
September 15, 2009
Patent Primary Examiner
Patent abstract
An exterior lever lock device with a clutch assembly is mounted on a door, is connected to a bolt and an indoor lever lock device and has a lever assembly, a driving assembly, a clutch assembly and a driven assembly. The driven assembly has an inner sleeve and a locking panel fastened to the clutch assembly and selectively engaging the inner sleeve. Therefore, whenever the lever lock is locked or unlocked, as long as there is a turning force applied to the lever assembly, the lever assembly turns and is not broken easily. An endurance of the exterior lever lock device is prolonged for improved lock performance.
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