A handcuff ring with mechanism for enhanced locking includes a stationary strand and a movable strand. The stationary strand is provided therein with an engaging clement, a stop portion, and an elastic element that is located between, and can push respectively, the engaging element and the stop portion. At least one locking groove is formed on the front side and/or the rear side of the stationary strand, and a thin rod, when being inserted from outside into the locking groove, can press an end of the stop portion to displace the stop portion toward a keyhole, so that the abutting portions of the stop portion and the engaging element abut against each other. Accordingly, through the locking groove(s) located on the front side and/or the rear side of the handcuff ring, a user can conveniently push the stop portion by the thin rod to finish the enhanced locking process.

A handcuff ring with mechanism for enhanced locking includes a stationary strand and a movable strand. The stationary strand is provided therein with an engaging clement, a stop portion, and an elastic element that is located between, and can push respectively, the engaging element and the stop portion. At least one locking groove is formed on the front side and/or the rear side of the stationary strand, and a thin rod, when being inserted from outside into the locking groove, can press an end of the stop portion to displace the stop portion toward a keyhole, so that the abutting portions of the stop portion and the engaging element abut against each other. Accordingly, through the locking groove(s) located on the front side and/or the rear side of the handcuff ring, a user can conveniently push the stop portion by the thin rod to finish the enhanced locking process.

A vitals monitoring handcuff apparatus comprising a housing structure that is adapted to be coupled with a set of handcuffs and to contain a plurality of modules and units; a first module that is located within the housing structure and adapted to measure a wearer's heartrate via a sensor; a second module that is located within the housing structure and is adapted to measure the wearer's respiration rate via a sensor; a controller unit that is located within the housing structure, is configured to relay instructional programs to the modules and units which causes the modules and units to operate, and the controller unit receives data from the modules and inputs that data into associated algorithms that produce corresponding output signals; a communication unit that is located within the housing structure and receives the output signals from the controller unit and is adapted to relay the output signals to a user; and a rechargeable power unit located within the housing structure, provides power to the vitals monitoring handcuff apparatus's other modules and units, and having a receiver which connects with an exterior power source via the port.

A vitals monitoring handcuff apparatus comprising a housing structure that is adapted to be coupled with a set of handcuffs and to contain a plurality of modules and units; a first module that is located within the housing structure and adapted to measure a wearer's heartrate via a sensor; a second module that is located within the housing structure and is adapted to measure the wearer's respiration rate via a sensor; a controller unit that is located within the housing structure, is configured to relay instructional programs to the modules and units which causes the modules and units to operate, and the controller unit receives data from the modules and inputs that data into associated algorithms that produce corresponding output signals; a communication unit that is located within the housing structure and receives the output signals from the controller unit and is adapted to relay the output signals to a user; and a rechargeable power unit located within the housing structure, provides power to the vitals monitoring handcuff apparatus's other modules and units, and having a receiver which connects with an exterior power source via the port.

A storage device includes a housing defining a channel, a receptacle, and a first passage. The housing further includes a first magnetic element. A rotatable member is positioned within the receptacle, and the rotatable member is rotatably coupled to the housing and moveable between a first position and a second position. The rotatable member includes a second magnetic element that engages with the first magnetic element in the first position, a third magnetic element that engages with the first magnetic element in the second position, a notch, and a second passage. A cover is at least partially disposed over the housing and the rotatable member. A pin is at least partially disposed within the first passage and within the second passage. The rotatable member is rotatable about an axis extending though the pin.

The proposed handcuff in the invention employs an innovative locking mechanism, which stops further tightening of the handcuff when the force applied on the wrist of hand or ankle of foot is greater than 1.5 lbs (or any preset value), and prevents physical injuries from over-tightening without compromising the restrain. A notch on the first tooth of the left/right stop pawl prevent the handcuff from being shimmed, a floating pawl keeps the middle stop pawl sticking with the stop ratchet when it moves 2-5 mm sideways. The handcuff is 50% faster in restraining by automatically locking instead of manually push-to-locking. The handcuff has the same shape/size/cost of the handcuffs currently used by police officer, and is compatible with current training procedure or SOP.

The proposed handcuff in the invention employs an innovative locking mechanism, which stops further tightening of the handcuff when the force applied on the wrist of hand or ankle of foot is greater than 1.5 lbs (or any preset value), and prevents physical injuries from over-tightening without compromising the restrain. A notch on the first tooth of the left/right stop pawl prevent the handcuff from being shimmed, a floating pawl keeps the middle stop pawl sticking with the stop ratchet when it moves 2-5 mm sideways. The handcuff is 50% faster in restraining by automatically locking instead of manually push-to-locking. The handcuff has the same shape/size/cost of the handcuffs currently used by police officer, and is compatible with current training procedure or SOP.

One variation of a self-locking tie cord includes a) a linear series of a plurality of nodules coupled together by a connective stem; b) a lock, coupled to one end of the connective stem, including a planar opening and configured to allow a nodule from the series of nodules to pass through the planar opening in a first direction orthogonal to the planar opening or a second direction orthogonal to the planar opening and opposite to the first direction only when the nodule applies a sufficient force to the planar opening.

One variation of a self-locking tie cord includes a) a linear series of a plurality of nodules coupled together by a connective stem; b) a lock, coupled to one end of the connective stem, including a planar opening and configured to allow a nodule from the series of nodules to pass through the planar opening in a first direction orthogonal to the planar opening or a second direction orthogonal to the planar opening and opposite to the first direction only when the nodule applies a sufficient force to the planar opening.

A restraint apparatus and system includes a rigid bracelet cuff separator connected to and between a pair lockable bracelet cuffs. The bracelet cuff separator is width-adjustable and the bracelet cuffs are rotatable about a longitudinal axis of the bracelet separator. The system includes a leg restraint apparatus with a rigid separator connected to and between ankle cuffs. The ankle cuffs are joined distally to the rigid separator by multi-axis couplings that enable a restrained person to lift his or her feet a sufficient height in order to safely climb stairs or curbs. Sections of the bracelet separator and the leg restraint include portions configured to connect to a quick connect/disconnect coupling of a connector post. The handcuffing apparatus and the leg restraint apparatus may be employed separately of one another or independently of the connector post.