Patent ID: 8356498

Claim:
A handcuff comprising: a generally arcuate jaw having teeth at a first end thereof and a second end oppositely situated from the first end; a generally arcuate cheek having a cheek head on a first end thereof and an oppositely situated second end, wherein the second end of the arcuate cheek is pivotally coupled to the second end of the generally arcuate jaw to enable relative pivotal movement of the cheek and the jaw toward and away from one another between handcuff closed and open positions, respectively; a frame which abuts the cheek head, wherein the frame comprises an underside flanked on a first end thereof by a first interior side wall and flanked on an oppositely situated second end thereof by a second interior side wall; a cavity formed between the underside, the first interior side wall, the second interior side wall, and the cheek head; a stud disposed on the cheek head which protrudes into the cavity; a bolt and a bolt spring which cooperate with one another to lock and to unlock the handcuff, wherein the bolt comprises: an underside having teeth which are engaged with the teeth of the generally arcuate jaw when the handcuff is in a locked position, and a groove formed through the underside and through which the stud is positioned when the handcuff is in the locked position, and from which the stud is removed when the handcuff is in an unlocked position; and an upper side opposite to the underside, wherein the upper side comprises a groove formed therethrough, a ridge having a leading edge which overlies a portion of the groove of the upper side, and a detent; and wherein the bolt spring comprises: 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 first spring leg portion engages with the detent of the bolt when the bolt spring is in a first position, and further wherein the second leg portion physically abuts the underside of the frame and the second interior side wall of the frame when the bolt spring is in the first position, and further wherein the second leg portion comprises a key pin engaging member; a key pin; and a key, wherein the key engages with the key pin such that when the key is rotated in a first direction, the key engages with the key pin engaging member thereby effectuating movement of the bolt spring in a linear direction towards the first interior side wall of the frame such that the bolt spring is in a second position, and wherein when the key is subsequently rotated in a second direction opposite to the first direction, the key engages with the leading edge of the ridge of the bolt thereby effecting the removal of the stud from the groove of the bolt, thereby effectuating the release of the teeth of the bolt from the teeth of the generally arcuate jaw.