Abstract: A combination writing instrument and handcuff accessory has a housing containing an elongated writing element with a writing tip. The housing has at its distal end a key suitable for opening a handcuff. The key has a longitudinal tunnel sized to allow passage of the writing tip. The housing also has a mechanism for reciprocating the writing element between a retracted and an extended position. The writing tip in the extended position extends (a) through the tunnel, and (b) outside the housing a predetermined distance. The portion of the writing element extending from the key can be inserted into a double lock hole of a handcuff.

Abstract: A handcuff apparatus includes a combination locking head and strap support which includes a first longitudinal axis. A first handcuff strap and a second handcuff strap are connected to the combination locking head and strap support. Each of the respective first and second handcuff straps are connected to the combination locking head and strap support parallel to a second longitudinal axis which is substantially perpendicular to the first longitudinal axis. Both the handcuff straps extend outward from the combination locking head and strap support from the same side of the strap support. Each of the 10 respective handcuff straps includes a ratchet-bearing side and a smooth side which contacts the skin of a person to be restrained. Respective strap-supported unidirectional ratchet members are located on the respective ratchet-bearing sides. Either respective ratchet-bearing side includes a smooth identification reception region.

Abstract: An apparatus (20) for assisting in the application and removal of handcuffs. The handcuffs including two cuffs joined by a central portion. The apparatus (20) comprises a base (22) adapted for stationary fixing, a switch (40) and a means (36) to selectively restrain the central portion of the handcuffs relative to the base within an opening (30) through which the cuffs cannot pass, in response to activation of the switch (40).

Abstract: To handcuffs for preventing double-locking is added a structure or a member in which a stopper is in resilient contact with and is locked to bodies of the stationary hoops, so that the movement of the stopper is basically prevented even if shocks are transmitted from sides of the bodies of the stationary hoops while the handcuffs are carried, and thus the ability to move a detent thereof is secured. Thereby, a swivel hoop can be rapidly rotated under emergency circumstances while the handcuffs are carried, and can be meshed with the ratchet of a detent installed between the bodies of the stationary hoops.

Abstract: A set of handcuffs which has a first bracelet, a second bracelet, and a central holder. In one embodiment, the central holder contains a one-way clutch and a retraction mechanism. In a second embodiment, the central holder comprises a retraction mechanism. One end of a line is attached to the second bracelet and the other end of the line is attached to the retraction mechanism, which urges the second bracelet toward the central holder. When the first bracelet is open, the line may be extended from the central holder or retracted to the central holder. When the first bracelet is closed, the retraction mechanism is engaged, causing the retraction mechanism to allow retraction of the bracelet toward the central holder, but to prevent extension of the bracelet away from the central holder. A line stopper is disclosed which connects with the line between the retraction mechanism and the second bracelet.

Abstract: To handcuffs for preventing double-locking is added a structure or a member in which a stopper is in resilient contact with and is locked to bodies of the stationary hoops, so that the movement of the stopper is basically prevented even if shocks are transmitted from sides of the bodies of the stationary hoops while the handcuffs are carried, and thus the ability to move a detent thereof is secured. Thereby, a swivel hoop can be rapidly rotated under emergency circumstances while the handcuffs are carried, and can be meshed with the ratchet of a detent installed between the bodies of the stationary hoops.

Abstract: Restraint devices which have a first bracelet, a second bracelet, and a central holder. In one embodiment, the central holder contains a one-way locking mechanism and a retraction/extension mechanism. In a second embodiment, the central holder comprises a retraction/extension mechanism. One end of a line is attached to the second bracelet and the other end of the line is attached to the retraction/extension mechanism, which urges the second bracelet toward the central holder. When the first bracelet is open, the line may be extended from the central holder or retracted to the central holder. When the first bracelet is closed, the retraction/extension mechanism is engaged, causing the one way locking mechanism/one way clutch to allow retraction of the bracelet toward the central holder, but to prevent extension of the bracelet away from the central holder. A line stopper is disclosed which connects with the line between the retraction/extension mechanism and the second bracelet.

Abstract: A fastening system that comprises an elongate strap body having a pair of opposed side portions and a top surface between the side portions. The fastening system also has a plurality of spaced male protrusions extending therefrom the top surface of the elongate strap body a protrusion height. Each protrusion has two faces and a protrusion axis, which is substantially perpendicular to the longitudinal axis. The fastening system comprises the ability to form a slit in the top surface of the strap body at almost any location. The slit may generally extend between the pair of side portions, substantially parallel to the protrusion axis and between adjacent male protrusions. The slit may also have end segments extending substantially parallel to the longitudinal axis of the elongate strap body, forming a “tongue.

Abstract: The invention is a personal restraint or tagging device utilized to restrain an individual as well as provide a secure means for the transfer of digital data within the restraint device itself. The device includes a reusable central body that has mechanical structure for holding two individual single-use flexible restraints while, at the same time, providing a housing for a flash memory or equivalent electronic memory storage device that stores digital data pertinent to the arrest and subsequent incarceration of an individual. An additional removable device connects to the central hub and allows for the reading and writing of stored data using a conventional computing device. The described device may also be used with a single flexible restraint to affix the device to a piece of evidence or as an identification and memory tag on objects requiring storage of information.

Abstract: A restraint device includes a closable loop to circumscribe a wearer's limb and defining an inner opening having a plurality of sizes. An indicator scale is associated with the loop to indicate the size of the opening in a closed configuration. The size indicated by the indicator scale can be documented or recorded for future reference.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a single metal plate and which is overmolded with a polymer overmold. The unitized frame has interlocking tabs on folded side plates of a base frame. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame. A key receiving structure on each side of the lockset assembly is provided for receiving a key and enabling the key to turned in one direction only for first unlocking a double-lock, which prevents movement of the bow in either direction and for secondly, completely unlocking the handcuff by moving the pawl away from the bow and against a spring mechanism. Beveled lock slots and keyways are provided in opposite flat side walls of the base frame for facilitating insertion of a handcuff key into the lockset assembly in the base frame.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a metal plate and which is overmolded with a polymer overmold. The bow and arcuate cheek arms engage a wrist of a person to be restrained with an envelope of the bow being defined by a conic path with an increasing arc. The bow and cheek arms have rounded inner edge surfaces. The cheek arms have reinforcing ribs. The molded polymer covering surrounding the cheek arms provide a round on the inner edge of the cheek arms which engage a wrist. The unitized frame has interlocking tabs on folded side plates of a base frame. A flat is provided on an outer surface of the bow for lining up a point of contact with a wrist. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a base frame. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame. The lock bar has a lock setting slot therethrough for receiving an actuating pin to move the lock bar from a single lockposition to a double lock position. A key receiving structure on each side of the lockset assembly is provided for receiving a key and enabling the key to turned in one direction only for first unlocking a double-lock, which prevents movement of the bow in either direction and for secondly, completely unlocking the handcuff by moving the pawl away from the bow and against a spring mechanism. The lock bar has a color that contrasts with the color of the frame of the handcuff to indicate any one of several things, such as type of lock mechanism and a status of the lock bar.

Abstract: A combination mechanical and electronic lock system for use in cuffs and various other locking applications is disclosed. In the preferred embodiment, the lock is configured to receive a matching key that transmits a code that disengages the electronic lock from the mechanical lock so that the mechanical lock can be manually opened by the user. When implemented in a handcuff, for example, the mechanical lock includes a single lock mechanism and a double lock mechanism; and at least one electronic lock configured to selectively unlock at least a portion of the mechanical lock upon receipt of the proper digital code from the cuff key. The power needed to operate the electronic lock, preferably a solenoid or other actuator, is received directly or indirectly from the cuff key so that the cuff need not possess a battery.

Abstract: An inmate transport restraint which comprises a handcuff having two loops formed from two straps, each strap separately inserted into a housing, wherein each housing has a first channel and a second channel, with the strap passing through each channel, the second channel adapted for releasably retaining a free end of the strap and the first channel retaining a stop end of the strap in a semi-permanent manner, the housing further containing a key-operated lift cam that cooperates with a tension spring to releasably retain the strap within the housing. The restraint further comprises a handcuff cover which fits over a portion of the handcuff to limit access and movement of the hands and wrists. The cover cooperates with a link pin, attached to a belly chain, to secure an inmate for transport.

Abstract: A double locking handcuff includes an interior spring laterally moveable between single- and double-lock positions. A finger-operated, pivoting cam is disposed within a slot extending through the cuff frame, and has a wide upper end accessible from the top of the cuff and a narrow, leg-like lower end positioned for movement against the spring. For double locking the handcuff, the cam upper end is moved downwards by hand. This causes the cam leg to press against and laterally shift the spring to its double-lock position. Because the cam is movable by hand and without the need for the handcuff key or for finding a double lock slot or pinhole, the double lock mechanism can be easily and quickly actuated. Also, when the handcuff is double locked the cam can be freely pivoted back and forth, providing direct tactile feedback that the handcuff is double locked.

Abstract: To provide a thrust fork to arrest a resisting criminal without danger of being stabbed by an edge tool, a thrust fork main body (2) attached to an end of a handle portion (1) is provided with a forked rod (21), movable opening and closing rods (23), which have base end portions respectively pivoted to leading ends of the forked rod and freely swivel only inside the forked rod without outward movement, a returning element (24) to return the opening and closing rods (23) by a spring to an original position, and a constraining rope (26), both ends of which are engaged with leading ends of the opening and closing rods (23) respectively to form a ring 44 having a suitable size inside the forked rod, whereby the end of the forked rod is opened and closed via swiveling of the opening and closing rods.

Abstract: A restraint locking mechanism provides a double-radiused, double-rounded spring for biasing the bolt toward the jaw, and for resisting movement of the stop when the stop is in the double lock position. The resistance provided by the double-radiused, double-rounded spring to movement of the stop increases to a maximum level of resistance as the stop is moved toward the single lock position, and then decreases, as contrasted with providing maximum resistance at the beginning of the stop's movement, and no resistance thereafter. The double-radiused, double-rounded spring design provides for improved fatugue resistance in the spring.

Abstract: The apparatus of the present invention typically comprises a pair of opposing restraint members wherein a first restraint member is attached to a first end of a thin, flexible, high tensile belt, cord or cable tether, whose second end is attached to a controllably-ratcheted, winding-rewinding spool within a suitable housing. A second restraint member is attached to an opposite end of the housing. The housing may have respective arms which further include a pivotable connection. When actuated by a user, a controllable ratchet-pawl release mechanism permits the tether to be withdrawn against the tension of the rewinding mechanism. When the ratchet-pawl release mechanism ceases to be actuated, the tether can no longer be extracted and can only be ratcheted back onto the spool while being retracted by the rewinding mechanism, thus bringing the attached opposing restraint members toward a closed connection.

Abstract: A buckling up phalanges joints type button input device and method use features that the phalanges joints can bend. A curved surface button input panel is installed inside sheathing. A curved surface mobile panel is installed corresponding to a curved surface of the button input panel, so as to form a curved space between the button input panel and the mobile panel. Fingers can stretch inside the curved space to operate buttons following an angle of the curved space. When either the curved surface mobile panel or the button input panel move, the curved space will become narrowed or extended. Once the curved space become narrowed, the phalanges joints will be locked on a turning point of the curved space due to a length of the fingers, so that the fingers cannot draw out. Thereby the phalanges joints will be locked if error data is inputted.

Abstract: A criminal arresting method includes preparing a frame assembly, activating a first weight releasing device to allow a first weight to fall inside the frame assembly, activating reducing of size of a first loop inside the frame assembly, activating a second weight releasing device to allow a second weight to fall relative to the frame assembly and activating reducing of size a second loop inside the frame assembly.

Abstract: A grip for a handcuff pair comprises a pair of wristlet lock capturing members joined together by a hinge member wherein the pair of wristlet lock capturing members comprising mirror image parts. The mirror image parts of the wristlet lock capturing members capturing at least an end portion of opposed faces of wristlet locks of the handcuff pair therebetween, the mirror image parts of each of the pair of wristlet lock capturing members joined together by a flexible member wherein the hinge member forces the wristlet locks apart and into an substantially planar position upon withdrawal from retention.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a metal plate and which is overmolded with a polymer overmold. The bow and arcuate cheek arms engage a wrist of a person to be restrained with an envelope of the bow being defined by a conic path with an increasing arc. The bow and cheek arms have rounded inner edge surfaces. The cheek arms have reinforcing ribs. The molded polymer covering surrounding the cheek arms provide a round on the inner edge of the cheek arms which engage a wrist. The unitized frame has interlocking tabs on folded side plates of a base frame. A flat is provided on an outer surface of the bow for lining up a point of contact with a wrist. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a metal plate and which is overmolded with a polymer overmold. The bow and arcuate cheek arms engage a wrist of a person to be restrained with an envelope of the bow being defined by a conic path with an increasing arc. The bow and cheek arms have rounded inner edge surfaces. The cheek arms have reinforcing ribs. The molded polymer covering surrounding the cheek arms provide a round on the inner edge of the cheek arms which engage a wrist. The unitized frame has interlocking tabs on folded side plates of a base frame. A flat is provided on an outer surface of the bow for lining up a point of contact with a wrist. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a metal plate and which is overmolded with a polymer overmold. The unitized frame has interlocking tabs on folded side plates of a base frame. A swivel cup is fixed in the base frame of the cheek plate assembly prior to polymer overmolding. A swivel with a welded chain link mounted thereon includes a swivel pin which is received in the swivel cup.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a base frame. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame. A key receiving structure on each side of the lockset assembly is provided for receiving a key and enabling the key to turned in one direction only for first unlocking a double-lock, which prevents movement of the bow in either direction and for secondly, completely unlocking the handcuff by moving the pawl away from the bow and against a spring mechanism. An easily deflectable detent is provided on a lockset housing for releaseably locking the lockset assembly within the base frame of the cheek plate assembly.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a metal plate and which is overmolded with a polymer overmold. The bow and arcuate cheek arms engage a wrist of a person to be restrained with an envelope of the bow being defined by a conic path with an increasing arc. The bow and cheek arms have rounded inner edge surfaces. The cheek arms have reinforcing ribs. The molded polymer covering surrounding the cheek arms provide a round on the inner edge of the cheek arms which engage a wrist. The unitized frame has interlocking tabs on folded side plates of a base frame. A flat is provided on an outer surface of the bow for lining up a point of contact with a wrist. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which includes a unitized frame that is die stamped from a metal plate and which is overmolded with a polymer overmold. The bow and arcuate cheek arms engage a wrist of a person to be restrained with an envelope of the bow being defined by a conic path with an increasing arc. The bow and cheek arms have rounded inner edge surfaces. The cheek arms have reinforcing ribs. The molded polymer covering surrounding the cheek arms provide a round on the inner edge of the cheek arms which engage a wrist. The unitized frame has interlocking tabs on folded side plates of a base frame. A flat is provided on an outer surface of the bow for lining up a point of contact with a wrist. A removable lockset assembly for locking a pawl relative to ratchet teeth on the bow and including a slideable lock bar is received in the base frame.

Abstract: A gun lock for receiving and clamping a cross-sectional portion of a firearm. A slide bar is provided for mounting the gun lock to a surface in a storage location. A locking assembly slidably mountable to the slide bar is provided. A set screw assembly for releasably locking the locking assembly onto the sliding bar is provided. A set screw and a set screw nut locks the locking assembly onto the slide bar. The set screw is accessible by a hex key through an opening in housing of the apparatus only when the ratchet arm is in the unlocked open position. A pivotably attachable ratchet arm which resembles typical handcuffs is provided that has a plurality of ratchet teeth that enables the gun lock to clamp a wide variety of cross-sectional portions of different weapons. A solenoid has a plunger adapted to engage one of the ratchet teeth of the ratchet arm to lock the rotatable ratchet arm in position around the cross-sectional portion of the weapon to be locked.

Abstract: A handcuff key “universal” shank and paddle for a common handcuff is attached, in-line, with an enlarged shank extension and bow or grip of a size and shape allowing its use while wearing heavy gloves. The shank extension is sufficiently long to accommodate heavily gloved fingers between the bow or grip and the universal shank and paddle. The enlarged bow or grip of the key is generally circular to fit the palm of a heavily gloved hand, and having a variety of apertures for key rings. The enlarged shank extension defines concave finger-holds for the gloved index and middle finger. The extended shank extends outward from the hand, while the heel of the glove hand engages the rounded rear surface of the bow or grip. The double-lock engaging stem is radially mounted about 60 degrees from the centerline. The key with extended shank is reversed for double-locking.

Abstract: A grip for a handcuff pair comprises a pair of opposed bodies each comprising a pair of wristlet lock capturing members which capture the wristlet lock portions of the handcuff pair therebetween. At least one of the pair of wristlet lock capturing members is joined together by a hinge disposed between the wristlet lock portions of the handcuff pair and is substantially located over a bendable joint of a link member joining the wristlet lock portions together into the handcuff pair.

Abstract: An apparatus for controlling the rotation of a gear comprising rotating a cam which causes the linear movement of a rod to control the rotation of the gear, wherein the cam rotates within a confined space but not around a fixed axle. The apparatus is particularly useful for controlling the opening and closing movements of a handcuff whose operating elements are comprised of a swing arm and at least one gear having teeth which engage the teeth of the swing arm.

Abstract: The handcuff assembly includes a bow pivotally connected to a cheek plate frame assembly which comprises an integral, one-piece, unitized frame that is die stamped from a single metal plate and which can be overmolded with a polymer overmold. The cheek arms have reinforcing ribs. The molded polymer covering surrounding the cheek arms provide a round on the inner edge of the cheek arms which engage a wrist. The unitized frame has interlocking tabs on folded side plates of a base frame. A deflectable detent is provided on a lockset housing for releaseably locking the lockset assembly within the base frame of the molded cheek plate assembly. A swivel cup is fixed in the base frame of the cheek plate assembly prior to polymer overmolding and a swivel with a swivel pin is received in the swivel cup.

Abstract: A restraint system for an appendage includes a clamp assembly and an electromagnet capable of being selectively activated for restraint. The clamp assembly includes a base portion and a restraint structure opposing the base portion. The restraint structure defines an opening for receiving an appendage between the base portion and the restraint structure. When the electromagnet is activated for restraint, the clamp assembly restrains an appendage extending in the opening. Another restraint system includes an inflatable bladder arrangement selectively activated to inflate to a first state and to deflate to a second state. When in the first state, the bladder arrangement defines an opening for passing of an appendage there through; however, when in the second state, the bladder arrangement defines an opening that precludes withdrawal of an appendage extending there through.

Abstract: A restraint system includes a wrist restraint system and an ankle restraint system that allow the limbs of a detainee to be restrained. The lockable wrist restraint system includes a waist belt and wrist restraints that are rotatably mounted to the waist belt. The wrist restraints can be positioned anywhere around the waist belt. The lockable ankle restraint system includes a strap and two buckles that form the strap into two loops. Each loop is used to restrain a leg of the detainee. A lockable buckle includes a housing that creates a tortuous path that traps a strap to which the buckle is mounted and prevents the strap from being adjusted or removed from the detainee.

Abstract: Wrist retention apparatus for handcuffs that have two curved jaws, and a pivot connection for the jaws, comprising in an insert configured to interfit one jaw and present a wrist engaging curved surface toward the other jaw, the insert having a projection configured to fit over a terminal of the jaw.

Abstract: A solenoid operated mechanical mechanism for controlling the rotation of a gear comprising the use of a first linear element which moves in response to an electrical current to cause the rotation of a cam which, in turn, causes the movement of a second linear element which controls the rotation of a gear. The solenoid operated mechanical mechanism is particularly useful for controlling the opening and closing movements of a handcuff whose operating elements are comprised of a swing arm and at least one gear having teeth which engage the teeth of the swing arm.

Abstract: An apparatus, and method of use thereof, for storing, transporting and deploying multiple restraint system components is provided. The inventive apparatus consists of two trays composed of flexible materials. The first tray is configured for storing wrist and ankle restraint systems, the second tray, smaller than the first tray, includes a top-mounted compartment for storing a multi-point restraint connection system. The storage compartment of second tray is secured to the tray by releasable connectors, and is at least partially disengaged to receive the various components of the multi-point restraint connection system, and releasably secured thereafter. The connection system is stored in such a manner as to partially display a portion of each system component outside of the storage compartment, with each portion oriented toward its eventual deployment area once the second tray is placed on the structure on which the EDP will be restrained.

Abstract: The invention provides a pair of cuff locks joined by a universal joint and linkage system which provides for 360 relative rotation between the cuffs as well as allow the cuffs to be folded together into a compact position. The invention further provides for a push button cylinder lock which includes a rotatable plug and a fixed plug each having a plurality of aligned bores for receiving one or more tumbler pins. The push button cylinder lock further includes a non-rotatable push button shaft which is sildably mounted within the housing. One or more retaining pins engage locking indents of the push button shaft.

Abstract: An improved handcuff is constructed of a handcuff assembly that includes a pair of spaced lock assemblies each carrying a clasp for securing the lock assemblies together. A handle cover assembly is mounted about the connector and the lock assemblies to provide a rigid non-movable connection between the lock assemblies. The cover includes a pair of plate members mounted to the connector and lock assemblies to sandwich the connector and lock assemblies therebetween. The cover also includes a pair of oppositely disposed elongate rigid channel members each having a body including an outer surface and an interior space for enclosing the pair of plate members therein. Securing attachments are included for securing the members together. Each channel member includes a pair of walls connected along one elongate edge and open along another elongate edge to define the interior space therein.

Abstract: A restraint mechanism for a set of handcuffs, the handcuffs including a pair of openable bracelet sections, each of the bracelet sections including a locking mechanism for opening and closing a bracelet section. The bracelet sections are tethered together by a linkage that includes a restraint mechanism that permits a bracelet section to be rotated about an axis extending through the linkage and the bracelet sections so as to rotate said bracelet section in a first rotational direction to a predetermined angular position, but in which the bracelet section is prevented from movement in a second reverse rotational direction once the predetermined angular position has been achieved.

Abstract: A combination handcuff key and writing instrument finds particular application with law enforcement and security personnel and includes an elongated pen having a writing end and an opposite closed end, and a cap adapted to selectively receive either the writing end or the closed end of the pen. A paddle type handcuff key is formed on a closed end of the cap so as to extend longitudinally from the cap. With the writing end of the pen inserted into an open end of the cap, the writing element is protected and the pen and cap form a hand-holdable handle for the handcuff key that can be conveniently carried on the user's person for easy access. With the closed end of the pen inserted into the cap, a longer length pen for writing is created. The writing element preferably is of the ball point pen type enabling use to double lock a handcuff. An external clip on the cap facilitates attachment to the user's person and enables ready orientation of handcuff key when the cap is disposed in the user's hand.

Abstract: The present invention relates to a pair of handcuffs which cannot be disassembled easily by securing a firm connection therebetween by hinge members. The handcuffs according to the present invention are made by the methods of shearing and bent-up forming in replacement of the conventional cast-iron method, and are connected by a connecting structure which comprises two frame plates, each of which includes a plurality of hinge members forming grooves between the neighboring hinge members and having openings therethrough and also includes a pair of flat members; couplings fitted into the grooves of the hinge members; and hinge axes to be axially fitted into the openings of the hinge members and the couplings.

Abstract: A restraint mechanism for a set of handcuffs, the handcuffs including a pair of openable bracelet sections, each of the bracelet sections including a locking mechanism for opening and closing a bracelet section. The bracelet sections are tethered together by a linkage that includes a restraint mechanism that permits a bracelet section to be rotated about an axis extending through the linkage and the bracelet sections so as to rotate said bracelet section in a first rotational direction to a predetermined angular position, but in which the bracelet section is prevented from movement in a second reverse rotational direction once the predetermined angular position has been achieved.

Abstract: The present invention relates to a pair of handcuffs which cannot be disassembled easily by securing a firm connection therebetween by means of hinge members. The handcuffs according to the present invention are made by the methods of shearing and bent-up forming in replacement of the conventional cast-iron method, and are connected by a connecting structure which comprises two frame plates, each of which includes a plurality of hinge members forming grooves between the neighboring hinge members and having openings therethrough and also includes a pair of flat members; couplings fitted into the grooves of the hinge members; and hinge axes to be axially fitted into the openings of the hinge members and the couplings.

Abstract: An improved handcuff is constructed of a handcuff assembly that includes a pair of spaced lock assemblies each carrying a clasp for securing the lock assemblies together. A handle cover assembly is mounted about the connector and the lock assemblies to provide a rigid non-movable connection between the lock assemblies. The cover includes a pair of plate members mounted to the connector and lock assemblies to sandwich the connector and lock assemblies therebetween. The cover also includes a pair of oppositely disposed elongate rigid channel members each having a body including an outer surface and an interior space for enclosing the pair of plate members therein. Securing means is included for securing the members together. Each channel member includes a pair of walls connected along one elongate edge and open along another elongate edge to define the interior space therein.

Abstract: A set of handcuffs having an improved locking mechanism. The critical element of the locking mechanism is the utilization of a locking gear set that replaces the conventional pawl. The teeth in the locking arm are matched to the locking gear set and are always in constant and full contact with the locking gear set. This invention also uses a cam/cylinder locking device that controls the movement of the locking gear set. In the normal cam position the locking gear set will only turn in one direction, thus enabling the locking arm to close. In the second cam position the locking gear set will not turn in either direction. The cam can be rotated, through the use of a cylindrical key, in either directions. Rotation in one direction will select one of two locking positions. Rotation of the cylindrical key in the opposite direction will free locking gear set to rotate in the opposite direction thus disengaging the locking arm.

Abstract: The invention provides a pair of cuff locks joined by a universal joint and linkage system which provides for 360 relative rotation between the cuffs as well as allow the cuffs to be folded together into a compact position. The invention further provides for a push button cylinder lock which includes a rotatable plug and a fixed plug each having a plurality of aligned bores for receiving one or more tumbler pins. The push button cylinder lock further includes a non-rotatable push button shaft which is sildably mounted within the housing. One or more retaining pins engage locking indents of the push button shaft.

Abstract: A prisoner activated restraining device which is activated when the wrists of a prisoner are placed in channels of the device.

Abstract: A double-locking mechanism for handcuffs, which include a pawl-and-ratchet mechanism wherein the ratchet pawl is spring biased to couple with a pivotal ratchet jaw arm within in a shackle casing and a bolt is provided for engaging the pawl to prevent the coupled jaw from pivoting in either direction in order to double lock the mechanism. A pivot slide mechanism is provided whereby either the pawl or the bolt is not only permitted to pivot about an axis within the casing, but is also permitted to have limited displacement in a direction transverse to its pivot axis which thereby causes the pawl to engage a stop within the casing to double lock the pawl from pivoting in either direction and also causes the bolt under bias to displace from a first bolt position to a second bolt position and thereby engage and retain the pawl in the double lock position against the stop in order to ensure that the mechanism will remain double locked until opened with a key.