Patent ID: 8683829

Claim:
A lock assembly for use in double-locking a handcuff, wherein the lock assembly comprises: a key pin engaging, member having a flange: a bolt comprising: an upper side oppositely situated to an underside, wherein the upper side comprises a groove formed therethrough, a spring stop contiguously formed with the groove and which extends substantially vertically therefrom, and a detent adjacently formed with the spring stop, and further wherein the spring stop comprises a generally concave-shaped member which vertically extends from the detent in a direction opposite to the underside of the bolt, and which then turns towards the groove and extends vertically towards the groove to from a bowed portion which is coterminoulsy formed with the groove; and a bolt spring comprising: an elongated body bent to form a vertically extending side wall which bridges a first spring leg portion to a second spring leg portion, wherein the second spring leg portion comprises a key pin engaging member; wherein when the lock assembly is in a first position, the first spring leg portion of the bolt spring is engaged with the detent of the bolt, and when the lock assembly is in a second position, the first spring leg portion is disengaged with the detent of the bolt, and the key pin engaging member of the bolt spring physically abuts the spring stop of the bolt, and further wherein the second position is accomplished by rotating the key pin engaging member such that the flange of the key pin physically abuts the key pin engaging member of the bolt spring thereby effecting movement of the bolt spring in a forward linear direction relative to the bolt, and further wherein the abutment between the key pin engaging member and the spring stop prevents further forward linear movement of the bolt spring relative to the bolt.