Abstract: The present invention suppresses rattle and assembly inaccuracies of a magnet and magnet detection sensor, and detects with certainty the position of a lock bolt. The power steering lock unit includes a lock bolt, which is movable between lock and unlock positions, an actuator for causing the lock bolt to move; a transmission mechanism for transmitting the drive force of the actuator to the lock bolt; and position detection sensor for detecting the movement position of the lock bolt. The position detection sensor includes a movable member to which a magnet is fixed, a base plate on which a magnetic detection sensor for detecting the magnetic force of the magnet is disposed, and a holder for movably holding the movable member at a prescribed spacing from the base plate. A linking mechanism is provided for operating the movable member in response to operation of the lock bolt or the transmission mechanism.

Abstract: The invention relates to a releasable holding mechanism which may be used to hold and release a roll bar in a roll over protection system. The roll bar is often made part of the seat structure of vehicle, or a part of the chassis of the vehicle. The releasable holding mechanism will be fastened rigidly or slightly loose to the roll bar frame, seat frame or the chassis of the vehicle. Between the roll bar and the releasable holding mechanism there will be a connection element that is rigidly or slightly loosely fastened to the roll bar. The arrangement of fastening the connection element rigidly or slightly loosely depends on the tolerances for positioning the actuator towards the roll bar. The connection element is locked or released by the releasable holding mechanism. The releasable holding mechanism is locked/-engaged when the roll bar is pushed downwards whereby the connection element is forced into the releasable holding mechanism.

Abstract: A magnetic key comprising: a body; a segmented magnet housed within the body; and a ferrous element housed above the segmented magnet. A protective cap for a magnetic key comprising a body; and a ferrous element housed within the body. A locking system comprises a magnetic key and protective cap.

Abstract: An electronic lock includes: an elongated lock case formed to have an opening, and formed thereinside with a bobbin-receiving space and a first passage; an annular bobbin with a middle passage, and disposed such that the middle passage is coaxially and spatially communicating with the first passage to serve as a second passage; a coil being operable to generate a magnetic field inside the second passage; a driving body configured such that when the magnetic field is generated by the coil, the driving body is repulsed by the magnetic field to move toward the opening; a latch body configured such that when the coil generates the magnetic field, the latch body is driven to move from an unlatching position to a latching position; and a spring for storing a restoring force when the latch body moves from the unlatching position to the latching position.

Abstract: An electromagnetic door lock assembly (30) includes a first portion (32) supported relative to hoistway doors (22) and a second portion (34) supported for movement with an elevator car (24). The first and second portions cooperate so that electromagnetic interaction between them unlocks a set of hoistway doors (22) for access to the car (24), for example. In disclosed embodiments, a first portion (32) of the actuator has at least one stationary electromagnetic portion (36A, 36B) and at least one moveable portion (38). The second portion (34) that moves with the car (24) includes at least one stationary electromagnetic portion (44). Magnetic interaction between the first and second portions (32, 34) causes selected movement of the moveable portion (38) for selectively locking or unlocking the doors (22).

Abstract: An electronic door locking apparatus having a mortise lock including dead bolt and latch bolt installed therein, which is able to easily open a door from the outside by inserting a metal card having a magnet installed inside if a power source such as a dry battery is not supplied or if the locking apparatus is not useable due to other mechanical defects, and also able to perform a lock function since a dead bolt is locked if a door handle of an outer unit is rotated upwards when there are defects in a driving motor or electronic components.

Abstract: An emergency exit door lock system configured to cooperate with a door hinged in a door frame for sensing when a person attempts to open the door, and for allowing the door to open after a subsequent delay. The system comprises an electromagnet affixable to a door frame for electromagnetically attracting an armature resiliently affixed at a variable armature separation distance to an armature mounting device, the device being affixable to the door. A proximity sensor including an analog Hall Effect device is mountable to the frame for detecting movement of the door away from a closed position. A controller, such as a micro-controller, receives a signal from the sensor and causes an alarm as a function of the signal. The signal is indicative of the armature separation distance, the controller being calibrate-able to provide a door alarm signal and door opening signal at any desired value of the armature separation distance.

Abstract: A combination non-programmable and programmable key for a security device of the type used to display items of merchandise includes a non-programmable portion for cooperating with a mechanical lock of the security device and a programmable portion for cooperating with a sensor of the security device that is operatively coupled to an alarm for indicating a security threat to the security device or to an item of merchandise displayed on the security device. The non-programmable portion includes a side assembly having a magnet that cooperates with a magnetically attractable locking pin to unlock the mechanical lock of the security device. The programmable portion emits an energy signal that cooperates with the sensor of the security device to disarm the alarm and thereby permit the security device to be removed or an item of merchandise to be removed without the alarm indicating a security threat.

Abstract: A securable system for displaying items of merchandise on a display board. The display system includes a lockable end assembly that engages the free end of at least one rod of a merchandise display therein. The end assembly is slidable along the rod between an unlocked position where items of merchandise may be removed therefrom and a locked position where items of merchandise cannot be removed therefrom. The end assembly is lockingly engaged with the rod by a locking mechanism that is linearly moveable within an interior chamber of the end assembly. The end assembly is provided with a specially shaped recess in its outer wall which is positioned perpendicular to the linear motion of the locking mechanism. A complementary dipole magnet key is inserted into the recess to unlock the locking mechanism.

Abstract: A security device comprising a retaining member forming an adjustable loop, including a cable; a ratchet member connected to the cable, operable to narrow the loop and to prevent widening of the loop, including a first main part comprising a gear ring extending in a first plane with a saw tooth profile raised from the plane, a second main part, rotatable relative to the first main part, including a latch member biased towards the first plane to engage the gear ring, and a drum for winding up of the cable.

Abstract: A locking mechanism having a magnet and a spring. The magnet is configured to cooperate with an anchor and the spring is configured to suspend the magnet whereby said magnet is capable of being movably connected to a housing body.

Abstract: A magnetic system for the unlocking of padlocks and locks including, a lock-cover element which together with a component fixed to a fitting allows or disallows access to a keyhole. A unlocking-key element which has the function of blocking or unblocking the lock-cover element.

Abstract: A lock cylinder consisting of a housing with a lock bit, an unlocking device and an actuation device is described. The unlocking device comprises a coupling arranged between the actuation device and the lock bit, which coupling is decoupled in the locked state and coupled in the unlocked state. The coupling can be electromagnetically or piezoelectrically actuated and the unlocking device is externally fed with energy contactlessly.

Abstract: An electromagnetic lock comprises: a body combined with a retaining frame by using locking studs and retaining screws; one side of the retaining frame being installed with a trigger receiving box; and an absorption plate combined to a supporting frame; two metal rings being installed in the absorption plate; the absorption plate having locking screws; wherein in installation, for aligning the body and the absorption plate, adjusting screws are installed between the absorption plate and the supporting frame. The supporting frame has screw holes for receiving the adjusting screws; one side of the supporting frame has two magnetic holes for receiving magnets; a magnet protection sheet are installed at lower side of the magnets; and a small screw serves to lock the protection sheet to the supporting frame. The trigger can be hidden so as to occupy a small space and the installation work is easy.

Abstract: An identification/surveillance device including a tag portion and a tack. The tack includes a button and a pin having a dull end and a sharp end. The identification/surveillance device is secured to an article to be identified/surveilled by inserting the pin through the article and engaging the pin with the tag portion. The dull end of the pin is releasably engaged with either the button or the tag portion such that when the identification/surveillance device is removed from the article the sharp end of the pin remains engaged with either the tag portion or the button and only the dull end of the pin is exposed.

Abstract: An automatic locking system includes a magnetic sensor and a magnet. The magnetic sensor sends a signal if the proximity to the magnet equals or is less than a predetermined distance. A controller drives a motor to extend a throw bolt in response to receiving the signal from the magnetic sensor. An electronic deadbolt includes the automatic locking system. The magnetic sensor is arranged in a deadbolt assembly inside the door on which the electronic deadbolt is arranged, and the magnet is arranged in or adjacent to a strike lining box on the door frame so the automatic locking system is hidden from view. An electronic deadbolt includes a master function that may be activated or deactivated by a user. If the master function is activated, a master passcode and master tag may be used to operate the electronic deadbolt and access programming buttons.

Abstract: A magnetic lid switch assembly includes a first magnetically actuated electrical switch that has a lever arm movable between a first position wherein the first switch is open and a second position wherein the first switch is closed. A second magnetically actuated electrical switch electrically is connected in series with the first switch. The second switch has a lever arm movable between a first position wherein the second switch is open and a second position wherein the second switch is closed. A first actuator is magnetically coupled to the first switch. The first actuator moves the lever arm of the first switch closing the first switch to enable the first switch to pass an electric current when the first actuator is positioned proximate the first switch. A second actuator is magnetically coupled to the second switch.

Abstract: The invention relates to an unlocking device for a control device (10), comprising an actuating magnet (12) which, guided in a coil base (14) and/or in housing elements of the actuating magnet, has an actuating element (16) that can be displaced along a first axis (20) and that releases, in an actuation position, a swivel path (22) for a control unit (24) which is arranged so as to be swiveled about a second axis (26). Said control unit (24) has a locking element (30) which, when unlocked by means of the actuating element (16) via the control element (24), releases the trajectory (32) for the control device (10) to be actuated. Said unlocking device is characterized by comprising a swiveling lever (34) which is guided in a housing part (28) so as to be swiveled. The second axis (26) is parallel to the first axis (20). The swiveling lever (34), at its free end and when the actuating magnet (12) is not actuated, contacts the actuating element (16).

Abstract: The invention relates to a releasable holding mechanism which may be used to hold and release a roll bar in a roll over protection system. The roll bar is often made part of the seat structure of vehicle, or a part of the chassis of the vehicle. The releasable holding mechanism will be fastened rigidly or slightly loose to the roll bar frame, seat frame or the chassis of the vehicle. Between the roll bar and the releasable holding mechanism there will be a connection element that is rigidly or slightly loosely fastened to the roll bar. The arrangement of fastening the connection element rigidly or slightly loosely depends on the tolerances for positioning the actuator towards the roll bar. The connection element is locked or released by the releasable holding mechanism. The releasable holding mechanism is locked/-engaged when the roll bar is pushed downwards whereby the connection element is forced into the releasable holding mechanism.

Abstract: A self latching latch mechanism is disclosed which includes a latch mounted to a first wing and a strike mounted to a second wing or a fixed member. The latch has a latch tongue which can move between a latching position in which the latch tongue can engage the strike to secure the first wing relative to the second wing or fixed member, and a free position which allows relative movement between the first wing and the second wing or fixed member. Latch tongue biasing means are provided to bias the latch tongue towards the latching position. Operating means are also provided to move the latch tongue from the latching position to the free position, and there is a hold back member which can move between a first position in which the latch tongue is prevented from moving to the latching position, and a second position in which the latch tongue can move to the latching position. The hold back member is biased to the first position.

Abstract: An electric lock includes a manual operation mechanism and an electric control mechanism. The manual operation mechanism includes a rotary knob unit, a first attracting member mounted fixedly to the rotary knob unit, a key-operated lockset, and a lock-connecting rod connected to and rotatable by the rotary knob unit and the key-operated lockset. The electric control mechanism includes a power source unit, a clutch gear driven by the power source unit to rotate in two directions, and a second attracting member mounted fixedly to the clutch gear. When the clutch gear is driven by the power source unit to rotate to align the first and second attracting members with each other, a magnetic attraction force is generated between the first and second attracting members to allow for co-rotation of the rotary knob unit with the clutch gear.

Abstract: A theft deterrent device includes first and second jaws pivotally connected to one another and pivotally movable between open and closed positions. The jaws form in the closed position an interior chamber and a through passage for receiving therethrough a portion of an article of merchandise. A lock slide is slidable within the interior chamber between locked and unlocked positions and lockable by a lock in the locked position to secure the first and second jaws together in the closed position. The lock slide includes lock hooks which lockably engage lock hooks of the second jaw. The lock slide includes locking and unlocking ledges which a resilient, magnetically attractable lock finger of the lock respectively engages in the locked and unlocked positions. An externally accessible thumb grip operatively engages the lock slide to move it between the locked and unlocked positions. An EAS tag is disposed within the device.

Abstract: Various embodiments of a magnetic detacher with open access are described. In one embodiment, the magnetic detacher may include magnet assembly to provide open access to a hard tag and a magnetic field sufficient to disengage a clamping mechanism of the hard tag. Other embodiments are described and claimed.

Abstract: A security tag holder is releasably clamped onto a garment. The holder includes first and second members coupled for relative pivotal movement about a pivot pin. The first member includes first clamping and locking regions at opposite sides of the pin, respectively. The second member includes second clamping and locking regions at opposite sides of the pin. The first locking region has a recess and a fixed magnet. The second locking region has a bore and a movable magnet movable between an unlocking position wherein the movable magnet is received in the bore and a locking position wherein the movable magnet is partly inserted into the recess and attracted to the fixed magnet. When the first and second members are urged against each other to clamp the garment, the movable magnet is moved from its unlocking to locking position to lock the first and second members against relative pivotal movement.

Abstract: Systems and apparatuses for a magnetically actuable locking mechanism and a security device having a magnetically actuable locking mechanism are disclosed.

Abstract: A magnetic system for the unlocking of padlocks and locks (10) characterized by the fact that it includes: A lock-cover element (11) which together with a component fixed to a fitting, itself patented, allows or disallows access to a keyhole, A unlocking-key element (12) which has the function of blocking or unblocking the lock-cover element (11).

Abstract: A key for unlocking a magnetically attractable locking mechanism retained within the interior of an anti-theft security device. The key comprises a housing which retains a dipole magnet therein. The dipole magnet is of a specifically designed cross-sectional shape configured to be complementary to a recess in the body of the security device. The shape of the magnet permits it to only enter the recess in one orientation and to bring only the appropriate one of the north or south magnetic poles into the proximity of the locking mechanism. The dipole magnet is movable in the housing between an extended position where at least a portion thereof protrudes from the housing, and a retracted position where the magnet is withdrawn entirely into the housing. The magnet is mounted on a spring-biased slide in the housing that is activated to move the magnet between the extended and retracted positions.

Abstract: A lock mechanism is mounted on a pair of vertically spaced merchandise display rods to prevent removal of items of merchandise supported on the lower rod. The lock mechanism includes a housing having a internal lock chamber and a pair of upper and lower slots, each receiving one of the rods therethrough. The lower slot has a side opening enabling the lower rod to pass out of the housing when the housing is pivotally moved on the upper rod to an unlocked open position. A bayonet is slidably moveable in the chamber of the housing and has an elongated slot through which both of the rods extend. A locking device has a magnetically attractable locking tine which locks the housing and bayonet in a closed locked position on the pair of rods. A magnetic key moves the tine to an unlocked position enabling the housing and bayonet to move to an unlocked open position exposing the side opening of the housing lower slot for removing the housing out of engagement with the lower rod.

Abstract: A locking arrangement (10) comprising a lockable handle assembly (31) having an independent locking mechanism (30), which mechanism cooperates with an engagement means (61) operable by an actuator (60), said actuator itself being operable by a vehicle's central locking system (not shown), wherein when the engagement means (61) is place in lockable contact with the locking mechanism (30) of the handle assembly (31) by the actuator (60), the locking arrangement (10) is placed in a locked condition.

Abstract: A lock device includes a first mounting unit, an operating member, a first and second actuating member, a magnet member and a latch member. The first mounting unit includes a main portion and two flanges bent from the first main portion. Each flange defines a notch. The operating member is configured for moving relative to the first mounting unit in a direction. The first and second actuating members are configured for respectively moving toward and proximate to one notch. The latch member is configured for being pivotable between a locking position and an unlocking position. In the locking position, the latch member is attracted by the magnet member and protrudes into one notch with engaging one flange. When the operating member moves in the direction, the latch member is pushed away from the first mounting member by means of one actuating member.

Abstract: A safety lock for a closing-off device which can be opened, has an actuating unit with an actuator which is guided in a displaceable manner, and has a locking unit into which the actuator, with the closing-off device closed, can be pushed and can be locked via an electromagnetically actuable, pivotable catch, by way of interengaging engagement surfaces, the actuator has a trigger element and the locking unit has a response element which, with the actuator pushed in, reacts to the trigger element by emitting an electric signal which triggers the locking action, in the case of which the catch can be pivoted about an axis extending parallel to the movement direction of the actuator, and the engagement surfaces of the catch and of the actuator run perpendicularly to the movement direction.

Abstract: An integrated theft deterrent tag 20 having a lanyard 38 emanating therefrom. The lanyard 38 having a pin 48 permanently attached thereto and the pin 48 being received within a locking mechanism 32 and enclosing an article to be protected.

Abstract: A steering lock apparatus for locking a steering shaft of a vehicle. The steering lock apparatus includes a motor and a lock assembly that is moved by the motor. The lock assembly includes a lock bar that moves between a lock position at which the lock bar is engaged with the steering shaft and an unlock position at which the lock bar is disengaged from the steering shaft. A magnet receptacle portion is arranged on the lock assembly. A magnet is attached to the magnet receptacle portion and moved integrally with the lock assembly. A magnetic field detection element detects a present position of the lock assembly based on a magnetic field of the magnet. The magnet is magnetically held and positioned in the magnet receptacle portion by magnetic attraction force produced between the magnet and a part of the lock assembly.

Abstract: A radio frequency (“RF”) electronic lock and a method of its operation are described. Also described is a programming key which may be used in connection with such a lock. It has several embodiments, including without limitations a mortise cylinder lock, a padlock, and a lever lock.

Abstract: A method and assembly for preventing unauthorized manipulation of common cylinder locks, as executed by use of the principles of the Bumpkey or Blowgun methods. The pin assembly, containing a tumbler pin and a driver pin, is adapted so as to alter linear displacement thereof, by forming a recession in one of the pins contained in the pin assembly, and an engagement element, in the other of the pins, for engaging the recession, such that when an impact-driven blow of a given intensity is applied so as to linearly displace the tumbler and driver pins, the pin engagement element engages the pin recession, strongly binding the tumbler and driver pins together, thereby, blocking the shear line and, consequently, preventing unauthorized manipulation of the common cylinder lock.

Abstract: There is disclosed a key required to have a reduced mechanical strength. When an authentic key is inserted into the keyway in a locking device, only a plunger member starts to move from a standby position toward an operative position. When the plunger member is pushed to the operative position, an operating lever located in the locked position swings to the unlocked position. The operating lever unlocks a locking mechanism that is in a locked state. When an inauthentic key is inserted in the keyway, the plunger member and sleeve member move together to the operative position. The operating lever in the locked position does not swing. Thus, the operating lever maintains the body portion of the locking mechanism locked.

Abstract: A theft deterrent device includes first and second jaws pivotally connected to one another and pivotally movable between open and closed positions. The jaws form in the closed position an interior chamber and a through passage for receiving therethrough a portion of an article of merchandise. A lock slide is slidable within the interior chamber between locked and unlocked positions and lockable by a lock in the locked position to secure the first and second jaws together in the closed position. The lock slide includes lock hooks which lockably engage lock hooks of the second jaw. The lock slide includes locking and unlocking ledges which a resilient, magnetically attractable lock finger of the lock respectively engages in the locked and unlocked positions. An externally accessible thumb grip operatively engages the lock slide to move it between the locked and unlocked positions. An EAS tag is disposed within the device.

Abstract: A magneto-mechanical locking device for locking a door can be displaced in relation to a stationary frame. The locking device contains a locking element produced from a magnetizable material and disposed on the frame. The locking device further has a permanent magnet that is mounted on the door and can be twisted from a first release position, in which the locking element is subject to substantially no action of magnetic force, to a second locking position, in which the locking element is attracted by the action of magnetic force of the permanent magnet and locks the door.

Abstract: A lockable storage case includes a top cover pivotably coupled to a bottom cover through a spine. The top cover includes loops or an upper lock receiving member and a lower lock receiving member defining a top cover lock insertion path. The bottom cover includes loops or an upper lock receiving member and a lower lock receiving member defining a bottom cover lock insertion path. The lower lock receiving members of both the top and bottom covers include hooks for receiving and maintaining a latch. When the top cover is closed on the bottom cover, the top and bottom cover insertion paths combine to form a combined lock insertion path. A lock for the storage case includes first and second catch mechanisms with first and second catches. To lock the storage case, the lock is inserted into the combined lock insertion path so that the catches on the lock mate with and are retained with the hooks in the top and bottom covers.

Abstract: An electric lock with magnetic support of the coupling element, comprising a locking element engaging a selvage, a decoding assembly for a code bearing component, an actuation element, connected to an internal handle and associated with the locking element, and a second actuation element, connected to an external handle and coupled to the locking element by way of an electromechanical device. The actuation element comprises a stem connected to the external handle with a rotating plate and a contrast plate, at an end resting freely on a rotatable sleeve, coupled to the locking element and provided with notches; an electric motor and a slider, aligned with the notches actuatable to perform translational motion, and a magnet supporting a coupling element adapted to enter the notches to rigidly couple to each other the plate, the contrast plate and the sleeve.

Abstract: An electric lock with multiple-function spring, with a locking element, a decoding assembly for a code bearing component, a first actuation element connected to an internal handle, and a second actuation element connected to an external handle both coupled to the locking element by an electromechanical device; the second actuation element comprises a protruding stem that ends with a rotating plate, a rotatable contrast plate that rests freely on a rotatable sleeve coupled to the locking element, the plates and the sleeve being provided with respective notches; the electromechanical device has a motor with a worm screw on its shaft, a slider, coupled to the screw through a spring with one end fixed on the lock body, the central portion engaged on the slider, and the opposite end accommodated between two crests of the screw, and a coupling element for entering notches to couple plates and sleeve.

Abstract: The invention relates to an electric steering lock wherein a permanent magnet (20) and two different Hall sensors (21,22) are used to recognise a locking and an unlocking position. The pole transition (23) of the magnet (20) is oriented in the direction of the lift (14). In order to increase efficiency, one sensor (21) is south-pole active and the other (22) is north-pole active. The sensors (21,22) are arranged in an intermediate area (25) between both end positions (10.1, 10.2) of the pole transition (23) of the permanent magnet (20) and are disposed at a defined end distance (38, 39) from both end positions (10.1, 10.2). At said end distance (10.1), the N-active sensor (21) is oriented towards the north pole and the S-active sensor (22) is oriented towards the south pole of the permanent magnet. Said end distance (38, 39) corresponds to the distance at which the magnetic flow density (30.1) of the permanent magnet (20) is at least identical to the threshold value (21.1) required to turn on (28.1, 29.

Abstract: A keyway plug that discretely provides a device for preventing a person from unlocking a tumbler lock even if the correct key is used. The present invention includes a plug member that is sized to fit entirely within a keyhole and is effective to block a key from being completely inserted into the keyhole. The plug may be removed from the keyhole through use of an extraction tool having a magnet which attracts the plug and magnetically couples the plug to the extraction tool when the tool comes into contact with the plug.

Abstract: A magnetically coded card and a lock include a slot into which the card is inserted to operate the lock. The card has an aperture through which a card-impaling lock-in pin of the lock can pass when the card is fully inserted within the slot, thus retaining the card in the slot when the lock is unlocked and releasing the card when the lock is again locked.

Abstract: An exit sensor bar for securing a door has an elongated housing and a mounting pad for mounting to a door. A circuit board assembly is disposed within the elongated housing in proximity to a blade of the mounting pad. The circuit board assembly includes at least an electro-optical source and an electro-optical detector coupled to a lock. The electro-optical detector selectively energizing and de-energizing the lock in response to the detection of light emitted from the electro-optical source. When a push force is applied to the elongated housing, the housing is displaced toward the mounting pad such that the blade obstructs light emitted from the electro-optical source. In response to the non-detection of the emitted light, the electro-optical detector de-energizes the lock freeing the door for egress.

Abstract: A message delivery assembly (10) and a method for conducting business (400) using the message delivery assembly (10) which has an exterior (12) in the shape of a Teddy-bear or substantially any other desired shape. Particularly, the message delivery assembly (10) includes a containment cavity (40) which frictionally receives a generally hollow cylinder (50) which is selectively lockable within the containment cavity (40) by use of a key (70), and which contains a personal message (90) from a user which is delivered to an intended recipient in a relatively secure and convenient manner.

Abstract: The present invention relates to a lock cylinder assembly (10) comprising a cylinder housing (12); a cylinder (14); a first electromagnetic coil (48); a first locking member (52); and a key. The cylinder (14) is rotatable in the cylinder housing (12) and the first locking member (52) is urged by a first magnetic field towards a locked position in which rotation of the cylinder (14) is prevented. In use, when the first electromagnetic coil (48) is energised upon the use of the key, a second magnetic field created thereby causes the at least one locking member (52) to move out of the locked position so as to allow said cylinder (14) to be rotated in the cylinder housing (12).

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: An indicating lock for a rimless glass door is composed of a seat assembly, a driving member, a latching member, an indicating ring, and a clamping member. The seat assembly has an interior seat and an exterior seat. The driving member has an interior disk and an exterior disk. Multiple magnetic elements are installed in the interior disk and the exterior disk with opposite polarities. By using the magnetic force, the indicating lock can be securely and easily installed on a rimless glass door without cutting the glass of the door. An indicating ring is provided between the exterior disk and the exterior seat. Those outside the door can conveniently know whether the door is locked by observing the indicating ring.

Abstract: A merchandize item protection apparatus has a housing, with an alarm transducer received in the housing. A device for securing the housing to a merchandize item or merchandize to be protected is provided because the housing has a passthrough opening in order to hang a protected merchandize item or merchandize package on a merchandize presenter. The housing is constituted by two housing elements that are detachably joined to one another by the attachment device. A gap is formed between the housing elements, and in which a merchandize package can be clamped in place between the housing elements.