Abstract: A method utilizes a locking device that includes a shackle member having a shank with a latch portion and a stop at opposite ends. A locking head mounts in a locked state on the latch portion but is removable when unlocked. A sleeve is carried on the shank but is removable. The sleeve and the shank together define a size conversion structure for the shackle. When the sleeve is on the shank, the shackle has one operative thickness to closely fit one size aperture, but when the sleeve is removed, the shackle has another, smaller operative thickness to fit a smaller aperture. A retaining member may be employed to resist removal of the sleeve. Two or more sleeves may be used to fit more than two apertures.

Abstract: A closing device includes a cylinder core with followers and a closing cylinder with a freewheel sleeve and a housing accommodating the sleeve. Normally, a coupling slider is coupled to the cylinder core by a restoring force, but is decoupled therefrom in the event of overcharge. An axial connection is provided between the coupling slider and a locking and controlling member. The slider and the locking and controlling member can be radially moved, however, can be rotated between various rotational positions of the closing cylinder when the cylinder core is actuated using a key. The closing cylinder has two key removal positions. The coupling slider is displaced in the angle thereof by turning the key between at least two rotational positions which correspond to the key removal positions. The coupling slider can be radially displaced in the direction of the rotational positions. At least one locking and controlling member is allocated to each of the rotational positions.

Abstract: A rotatable disc having a tubular lock assembly including a tubular sleeve and a number of disc tumblers located within the sleeve. A side locking bar is operative to prevent rotation of the assembly relative to a body, and that bar is rendered inoperative by insertion of a correct key into the lock keyway. The disc tumblers include a number of standard tumblers and a special tumbler. The locking bar is inoperative when each standard tumbler is at a service position of rotation and the special tumbler is at either a service position or a second function position of rotation. A service key is operable to place all tumblers at the service position, and a special change key is operable to place the special tumbler at the second function position to allow removal of the barrel assembly.

Abstract: An improved tubular-type locking cylinder and dedicated key that provides for both theft- and trip-resistant tumbler pin assemblies, wherein the locking cylinder is comprised of an outer housing, a main base, a locking cylinder shaft, and a plurality of tumbler pin assemblies. The improved features are that a detent slot is formed in the interior wall along the locking cylinder shaft recess through the center of the main base body. The locking cylinder shaft consists of a bore through the center of the shaft member up to its top extremity, a movably disposed catch bolt and spring, and a plug obstructing the opening of the bore. A horizontal passage for seating a steel ball is formed in the shaft member at the lower side of a tumbler pin disc. A locating pin is horizontally situated near the upper extremity at one side of the catch bolt. A keyway slot is formed in the shaft member that is contiguous to the upper end of the bore.

Abstract: A lock assembly having a first body portion configured to lock with a second body portion. The first body portion includes a first end having a first aperture and a second aperture aligned in perpendicularly intersection with the first aperture. The second aperture retains a pair of locking balls. The second body portion includes an aperture configured to receive the first end of the first body portion. The aperture of the second body portion also includes a circumferential groove configured to receive a portion of the pair of locking balls in a locked position of the first body portion with the second body portion. A keyway locking cylinder is configured to axially drive a beveled point of an extension into the first aperture of the first body portion and force the pair of locking balls in a radially outward direction into the locked position with the circumferential groove.

Abstract: A security device comprises a first component having a through first passageway surrounded by an internal first recess, and a second component having a second passageway surrounded by an internal second recess. The first and second components are configured for assembly in a mating relationship with the first and second passageways in communication with each other and in coaxial alignment. A lock has a barrel containing a spring and plunger and carrying radially shiftable locking elements, with the plunger being normally biased by the spring in one direction urging the locking elements into expanded positions protruding radially from the barrel. The barrel is insertable into and releasably retained in an unlocked position in the first passageway with the locking elements expanded radially outwardly into the first recess, and is shiftable by a forwardly applied axial force into a locked position in the second passageway with the locking elements expanded into the second recess.

Abstract: A lock core includes a lower and an upper lock cover and a lock plate. The upper lock cover has the recessed hollow provided with a plurality of recessed holes respectively fitted therein with at least one steel ball. Thus, when a burglar employs an electric drill to break and unlock a lock by drilling through the keyhole of the lock, the steel balls in the recessed holes can stop the electric drill from drilling forward, having excellent effect of anti-theft.

Abstract: A locking device to be secured in a weapon, comprising a first locking means manoeuvrable by a lock cylinder (56), which locking means has a friction body (10) displaceably arranged in relation to the lock body (3-5) and insertable into the chamber or barrel of the weapon, and blocking elements (23) arranged to be moved into engagement with the inside wall of the chamber/barrel in case of mutual displacement between the friction body (10) and the lock body (3-5). The locking device furthermore comprising a second locking means (73), which by means of the lock cylinder (56) is movable into engagement with a space in the weapon located adjacent to the chamber/barrel in order to secure the locking device in the weapon.

Abstract: A lock with an electromechanical coupling device, which only consumes little electrical power, comprises an operating handle which constantly is in operative connection with a drive member of an electromechanical coupling device and upon recognition of an authentication code makes an operative connection with a driven member, which in turn is in constant operative connection with the operating mechanism of the lock. The drive member and the driven member of the coupling device are each spring-loaded into a rest position and can be coupled via a locking mechanism, which by means of an electromechanical transducer can be switched between a disengaged position and an engaged position.

Abstract: A padlock includes a casing having a opening for receiving a cylindrical tumbler and a cylinder assembly. The cylinder assembly has a rotary cylinder capable of being turned by a key. The rotary cylinder has a paw adapted to abut a butt of the cylindrical tumbler and thus to turn the tumbler. The tumbler is configured to push a pair of balls into curved notches of a shackle and allow the balls to exit from the notches. Furthermore, the tumbler is provided with a detent positioned in an angular space between the paw and the butt, so as to prevent the paw of the rotary cylindrical from being turned relative to the butt of the cylindrical tumbler.

Abstract: A means for preventing rotation of a barrel lock when opened by a key includes a rotationally actuated barrel lock for securing electric meter boxes and the like, and a spring loaded clip for mounting inside the meter box. Lock actuation is characterized by rotation of a key relative to the lock. The barrel lock includes a head portion, and a smaller diameter shank portion with flatted areas thereon. The clip includes a lock receiving opening with internal protrusions which engage the flatted areas on the lock shank, thereby preventing rotation of the lock when it is engaged by the key.

Abstract: An article surveillance includes a pair of components that are detachably connected together having a releasably grasping device engaging with an article intended to be protected. The device is coupled between the two components with a selected one of the components having an elongated prong insertably received within the other component and is held thereto by a ball clutch mechanism. The mechanism includes a tapered housing with an internal tapered wall surface enclosing a plug member having at least two balls carried in opposing grooves. The tapered housing and the plug member include a coaxial passageway for insertably receiving the elongated prong from the first component. The plug member is resiliently biased to a first position by an expansion spring causing the balls to bear against the tapered inner wall of the housing, restricting the passageway.

Abstract: A lock core rotatable in a housing is formed with an axially extending key passage, transverse guide slots, and an axially inwardly open bore. A bolt displaceable in the bore between a locked position and a unlocked position has radially open grooves aligned with the slots in the locked position. The inner bolt end can directly engage in an inwardly open seat formed in the housing or with a ball engageable in such a seat to lock the core in the housing. Tumbler plates in the slots are formed with control edges and holes alignable with the bore in a freeing position. The plates are displaceable into blocking positions with the holes offset at least partially from the bore and engaging in the respective grooves. A key has a plurality of respective bit notches engageable with the control edges on engagement of the key in the passage.

Abstract: A barrel lock for locking two structures together that includes two lock portions, each portion being generally cylindrical and elongated, one of which is substantially solid and one of which is substantially hollow. The first lock portion has one section of a substantially greater diameter than a second section, the two sections being separated by a beveled annular shoulder. The smaller diameter section is provided with a cylindrical axial aperture into which are disposed a plurality of spheres adapted to be received in apertures in the first portion of the lock, and also adapted for engagement in an annular groove on the interior surface of the second portion of the lock, the locking balls thereby effectively locking the two portions of the lock together. The second portion is axially aligned with the first portion and is provided with a keyway adapted for movement in a rotatable and axially slideable fashion within said second portion.

Abstract: An electronic locking system comprises a cylinder housed within and rotatable with respect to a shell. A key has a power supply. At least one of the key and the cylinder is capable of generating a signal when the key is electrically connected with the cylinder. An electrically powered locking mechanism is housed within the cylinder and includes a lock member moveable between an open position and a locked position. The lock member in the locked position interferes with movement of the cylinder. A power source is connected to the locking mechanism in response to the signal. The locking mechanism allows movement of the lock member from the locked position to the open position in response to the signal so that the cylinder may be rotated within the shell. The cylinder further includes an interfering member that resists movement of the locking member. In addition, a biasing mechanism urges the cylinder toward a home position when the cylinder is rotated away from the home position.

Abstract: A retaining device is fitted into the end of the handlebar of a personal vehicle such as a bicycle or motorcycle. The device has a shackle, a cable, or a spring loaded lever which extends out of the distal end of the handlebar whereby it can be used to retain such items as a motorcycle helmet or a flotation vest. The retaining device may include a lock. A cable can be used, and a cap fitted over the retaining device attached to the distal end of the cable.

Abstract: The invention elates to a hoop lock comprising a lock body and a hoop. The hoop can be coupled a its hoop ends to the lock body and latched thereto in the coupled state wherein two force cells spatially separated from one another are arranged in the lock body for the reception of the hoop ends. Each force cell is associated with a latching arrangement for a hoop end which is adjustable between a latched state and a released state and which can be actuated via a locking unit. At least one latching arrangement has a bolt element whose side remote from the inserted hoop end is supported at the force cell in the latched state.

Abstract: The present invention is directed to a lock with a master cylinder that is highly resistant to pulling. The lock comprises a lock body 10 with a hole, a master cylinder 20 rotatably mounted within the cylindrical hole of the lock body, and tumbler unit 30 mounted in the master cylinder wherein at least one metal pull resistant element 40 is inserted between the outer surface of the master cylinder and the inner surface of the wall of the cylindrical hole in the lock body. The metal pull resistant element prevents the master cylinder from being pulling out of the lock body in an axial direction. The metal pull resistant element 40 may be a ball, a cylinder or a block inserted 20 and held in place between an indentation 21 provided on the outer surface of master cylinder and an annular concavity provided on the inner wall surface of the cylindrical hole for the master cylinder in the lock body 10 and at a location opposite to the indentation 21.

Abstract: A cylindrical lock arrangement of the kind having a cylindrical housing attached to a door and a lock cylinder with lever tumblers provided to cooperate with a lock device, whereby the lock device is arranged to be actuated via a carrier provided to the cylinder lock. The invention has a connection device for transmission of force from the lock cylinder to the carrier is provided to be axially displaced in relation to the lock cylinder from a neutral position and in direction towards this during rotation of the lock cylinder with a fitting key. The connection device is provided to be brought to an active position in friction engagement with the carrier not until after the axial displacement from the neutral position, after which locking and unlocking respectively of the lock device is performed by further rotation of the lock cylinder by means of the key.

Abstract: A tool lock, especially useful in preventing theft or unauthorized use of a tool. The tool lock has a housing in which a lock cylinder assembly and locking balls are disposed. The tool lock housing has an opening at one end in which a portion of a tool, such as a pneumatic fitting on a pneumatic tool, may be inserted and secured by the engagement of the locking balls. The tool lock housing may further include a shackle portion which can be used in conjunction with a cable, either integral or separate, padlock, or chain to secure the tool lock to another object.

Abstract: The present invention relates to a lock cylinder including an outer cylindric block, an inner cylindric block, which defines a key hole, locking function members arranged inside the inner cylindric block, which are intended to cooperate with a key insertable in the key hole, as well as an activating member connected to the inner cylindric block. The inner cylindric block has such dimensions that it is displaceable inside the outer cylindric block, that members are arranged adjacent to the opening of the key hole to fix the inner cylindric block and the outer cylindric block in relation to each other in the axial direction, and a force-exerting member is provided, which applies an axial force to the inner cylindric block in a direction away from the opening of the key hole.

Abstract: The invention relates to a device for locking a part (3; 21; 31) that is to be secured, arranged so that it can move on a motor vehicle, a securing part (11; 26; 36) engaging in a slot-shaped cavity (7; 28; 38) of the part (3; 21; 31) that is to be secured under the effect of the acceleration forces that occur when the corresponding vehicle coincides with an obstacle. To allow the device to be fitted simply and in a non-bulky way and to reliably prevent unintentional opening of the door of the vehicle when acceleration forces from different directions are applied on the part that is to be secured, the invention proposes that the securing part (11; 26; 36) be controlled by a control element (10; 22; 32) of spherical shape, the control element (10; 22; 32) resting on a guide (8; 23; 33) via domed or conical control surfaces (9).

Abstract: A lock which incorporates a digital programmable microprocessing interface capable of user-programming whereby a programmed combination opens the lock. According to one embodiment of the lock, there can be as many as approximately 10×106 possible different combinations which may be entered by the user. The operation of the lock is driven by an electric signal derived from the combination, and that electrical signal is sent to a motor assembly inside the lock body in response to which there is a disengagement of a set of locking balls from a locking bar, which with the assistance of a springing mechanism causes the locking device to open automatically.

Abstract: A closing device with a closing cylinder for closing functions to be performed especially on vehicles has a radial recess for the locking and control member that is open toward the exterior of the housing and the locking and control member is exposed in the radially outward direction, but is covered by a leaf-shaped spring. A spring is arranged in the circumferential area of the housing and acts directly on the locking and control member. The control and locking member is arranged radially adjacent to the cylinder portion of the cylinder core being provided with followers. A slide is positioned in a portion of the closing cylinder axially stepped relative to the locking and control member, and an axial connection bridges the spacing between the locking and control member and the slide.

Abstract: A coupler lock for securing a device within a sleeve of a vehicle hitch to prevent unauthorized removal of the device which can include a hitch ball insert, a cargo platform, bike carrier or similar accessory designed to be attached to the vehicle. The coupler lock includes a lock housing removably attached to one end of a lock bar configured to pass through apertures within the hitch sleeve and insert. The opposite end of the lock bar has a barrel permanently attached to prevent the lock from passing through the apertures. The first end of the lock bar has an annular groove. The lock housing has a plurality of ball bearings radially movable in and out of the annular groove to lock and release the bar. A locking cup longitudinally movable within the lock housing in response to movement of the lock cylinder retains the bearings within the groove or releases the bearings form removal of the lock bar from the lock housing.

Abstract: A manual shift lever lock structure, wherein: a second hollow pipe is slipped over the shift lever, a lock cylinder is fixedly connected to the top of the shift lever to move the second hollow pipe, the first hollow pipe and the slide sleeve are slipped over the second hollow pipe, a tailing member is provided at the end of the first hollow pipe and has thereon an elastic member; the first hollow pipe has a hole for inserting therein a bead; a first annular recess and a second annular recess are respectively provided in the inner wall of the slide sleeve and the external wall of the second hollow pipe, thereby the bead drops into the first annular recess of the slide sleeve when the slide sleeve is pulled down to insert into a hole of a shift lever seat, and the slide sleeve is stopped here in engagement with the shift lever seat; and when in unlocking the shift lever, the second hollow pipe is moved and the bead drops into the space of the second annular recess of the second hollow pipe, the slide sleeve is

Abstract: An electro-mechanical latching apparatus for an enclosure such as a vending machine and including an electronic lock controller for disengaging a latch assembly securing the door of the enclosure against the enclosure frame in a closed, locked position. Upon actuation, the lock controller disengages the latch assembly and enable the door of the enclosure to be moved to an open position for accessing the enclosure.

Abstract: A lockable automobile wheel assembly (10) that is utilized to safely secure an automobile wheel (70), and especially an automobile spoked wheel (70). The assembly (10) consists of two major elements: a hub adapter (12) end a hub securing member (40), which is also referred to as a hex nut or spinner. The adapter (12) includes a circular section (14) having a center bore (16) from where projects outward a center hub (28). The hub adapter (12) is designed to be inserted and attached to a central hub (74) centrally located and attached within the confines of the automobile wheel (70). Once attached, the center hub (28) protrudes through the vertical plane of the automobile wheel (70), which then allows the hub securing member (40) to be attached to the center hub (28). After the member (40) is attached the assembly (12) is secured to the automobile wheel (70).

Abstract: A lockable enclosure including a safe, a suitcase, a briefcase, and the like has an interior sized to receive articles and an electronic key assembly actuating a cam mechanism upon entry of a preprogrammed entry code. The cam mechanism has a cam that depresses a release lever of the a latch assembly to a position, wherein the latch assembly disengages from the lockable enclosure to allow a door to swing in an open position so as to enable access to the interior of the lockable enclosure.

Abstract: A lock with an electromechanical coupling device, which only consumes little electrical power, comprises an operating handle which constantly is in operative connection with a drive member of an electromechanical coupling device and upon recognition of an authentication code makes an operative connection with a driven member, which in turn is in constant operative connection with the operating mechanism of the lock. The drive member and the driven member of the coupling device are each spring-loaded into a rest position and can be coupled via a locking mechanism, which by means of an electromechanical transducer can be switched between a disengaged position and an engaged position.

Abstract: A lock having a pin inserted into openings in the housing and the shaft to lock the shaft against movement relative to the housing. A lock guard is welded to the housing and a pin and ball receptacle is welded to the opposite side of the housing. A pin lock inserted through the lock guard, through the housing and the shaft into the pin and ball receptacle includes an outer pin containing a pair of ball bearings disposed within openings in the end of the outer pin. When inserted the pair of ball bearings are disposed adjacent to depressions in the inside surface of the pin and ball receptacle. A cylinder key lock is attached at the end opposite the key to a rotator which engages an inner pin. The inner pin has a large diameter section and a reduced diameter section at its end. When the large diameter section is in contact with the ball bearings, the ball bearings protrude through the outer pin and engage the depressions in the pin and ball receptacle to lock the outer pin to the pin and ball receptacle.

Abstract: A bicycle steering lock having a pin inserted into openings in the steering housing and the fork shaft to lock the steering of the bicycle. A lock guard is welded to the steering housing and a pin and ball receptacle is welded to the opposite side of the housing. A pin lock inserted through the lock guard, through the housing and the fork shaft into the pin and ball receptacle includes an outer pin containing a pair of ball bearings disposed within openings in the end of the outer pin. When inserted the pair of ball bearings are disposed adjacent to depressions in the inside surface of the pin and ball receptacle. A cylinder key lock is attached at the end opposite the key to a rotator which engages an inner pin. The inner pin has a large diameter section and a reduced diameter section at its end.

Abstract: There is a lock for a gaming machine or other device. The lock has a plug 3 rotatable in a cylinder 1 between latched and unlatched positions. There are rolling members 9, 9A which at the latched position are radially displaceable within aligned plug and cylinder recesses 10, 11 between an outer locking position wherein said rolling member extends across a shear face 10A separating said plug 3 and cylinder 1 to hold the plug in the latched position and an inner unlocked position wherein the rolling members 9, 9A are substantially within the plug recess 10. There is a plunger movable axially within the plug 3 between a first position wherein the rolling members 9, 9A are retained in the locking position and a second position in which the rolling members 9, 9A are movable inward from the locking position to the unlocked position to allow rotation of the plug 3 from the latched to the unlatched positions.

Abstract: A lockable automotive wheel which utilizes a splined hub adapter (44) attached to the lug studs of a motor vehicle. A hollow center hub (60) with mating internal splines (62) is disposed upon the adapter. A hub securing member (68) is screwed onto the adapter with a tapered interface (64) and (80) engaging the center hub. A keyed lock (88) or flat headed screw (90) is imbedded into an enclosure (82) within the hub securing member and one or two balls (106) are forced into a groove (46) in the adapter by rotation of flats (84) when the lock or optional screw is rotated by a key or special tool. The hub securing member is screwed on or off by a separate tool mating with the polygon shaped raised outside portion or struck with a blunt instrument in the extending arm embodiment. The splined hub adapter remains attached to the vehicle after the wheel is removed. The wheel may be the spoked type or solid with the center hub integral with the outer rim (40).

Abstract: A locking apparatus is provided that includes a unitary driver comprising a driving portion and a tenon portion. The driver is machined as a single part. A hollow housing is provided with an open end for receiving the driver. The tenon extends from the open end. The driving portion is rotatable in the housing between locked and unlocked positions. A channel is provided between opposing surfaces of the housing and the driver, within the interior of the housing. A retainer is received in transverse openings communicating with the channel. A number of retainer members may extend into the housing to engage the driving portion of the driver. A detent feature may be provided to identify discrete locked and unlocked positions. A locking latch is coupled to the tenon. A stop member is coupled to the housing. The stop member extends along the housing and engages the drawer to prevent removal of the housing from the drawer.

Abstract: A keylock assembly including both a keylock device for locking a door to a chassis frame and a securing device for securing the door to the chassis frame so that the door can be secured to the chassis frame without having to lock the door. The chassis may house a computer system that includes a processor and a peripheral device. The keylock device includes a latch member and a keylock wherein the securing device includes a threaded portion screwed into the keylock to attach the latch member to the keylock. One example of a securing device attached to the keylock device is a ball stud. To secure the door to the chassis frame, the ball stud engages a corresponding structure, such as a two pronged clip, when the door is in a closed position with respect to the chassis frame. The door may be removably and pivotally attached to the housing frame via a hinge.

Abstract: A long shackle padlock includes a cylindrical housing, a lock housing fitted in the cylindrical housing, a locking means protected in the lock housing, and a shackle. The locking means can move a first bead and a second bead with a coil spring interposed between, for locking and unlocking, with the second bead fitting in a bead hole of the foot of the shackle in locking, and with the first bead pushed and moved inward by the locking means to let the second bead move inward to disengage from the bead hole of the foot of the shackle in unlocking. The locking means and the lock housing can be applied to other kinds of locks such as common padlocks, U-shaped locks, wire locks, etc.

Abstract: A manual control device includes an actuated tube which is connected to the stem member contacting against the rod movably received in the plug of the pickproof lock, an operating member securely connected to the actuating tube by receiving the boss thereof in the groove defined in the actuating tube, wherein the operating member has a rib so as to be frictionally received in the actuating tube. Both of the actuating tube and the operating member are received in the sleeve which has an L-shaped groove into which the protrusion extending from the actuating tube is movably received. The stem member pushes the rod of the pickproof lock by pushing the combination of the actuating tube and the operation member and rotating the combination to let the protrusion be securely positioned in the L-shaped groove of the sleeve.

Abstract: A door closure for an electric meter box comprises a barrel lock, a lock receiver, a tie rod, a locking nut, and a base plate. The lock includes a shank portion, a head portion, and a flange. The head portion resides in a hole in the meter box door, and the flange captures the outside surface of the door. The lock shank is received by a hole in one end of the lock receiver. The hole has an internal groove for receiving the locking balls in the lock shank. The other end of the lock receiver receives the threaded end of a tie rod. The other end of the tie rod is welded to a base plate, which is screwed into the back of the meter box. The position of the lock receiver can be adjusted to match the depth of the meter box by screwing the receiver up or down on the tie rod. The position of the receiver is then fixed by a lock nut immediately behind the lock receiver. The lock receiver can also be aligned with the door hole by flexing the tie rod.

Abstract: A motorcycle disk brake lock is composed of a main body, a lock core, a lock bolt, a retrieving spring, and a lock bolt spring. The main body is provided with a disk receiving slot which is in turn provided with a receiving hole and an insertion slot. The lock core is received in the receiving hole. The lock bolt is composed of an inner lock bolt and an outer lock bolt which is provided with a plurality of retaining members for retaining and locating the main body and the lock bolt such that the disk brake lock can not be easily tampered with. The retrieving spring serves to locate the lock core at the unlocking position, whereas the lock bolt spring is intended to locate the inner lock bolt at the releasing position.

Abstract: A padlock includes a lock base formed with first and second shackle insert holes, a lock receiving space which is disposed between the first and second shackle insert holes and which has an upper section communicated with the second shackle insert hole, and a ball chamber which extends transversely between the first shackle insert hole and the upper section of the lock receiving space. A lock device is received in the lock receiving space, and has an axially rotatable key-operated lock core which is provided with a plunger formed with a latch projection. A locking unit includes at least one ball member rollingly disposed in the ball chamber adjacent to the plunger. A shackle has longer and shorter leg portions to be received in the first and second shackle insert holes, respectively. The shorter leg portion is formed with a plunger engaging groove for engaging the latch projection of the plunger. The longer leg portion is formed with a ball retaining groove for engaging the locking unit.

Abstract: A lock insert with at least one revolving operating projection (1) for the lock pawl includes a first locking system (2) for axial contact with the frontal end (3) of the key (4) and a second locking system (10) for radial contact with the key (4). The first locking system (2) is formed by a blocking liner (7) with a bottom (5) with an axial carrier cavity (6) for the frontal end (3) of the key (4), and is provided on the outside with at least one operating projection (1) and in its housing with at least one radial opening (8) with a distance element (9) placed therein. The second locking system (10) is formed by a hollow unrevolving liner (11) coaxially enclosing on the outside and on the inside the blocking liner (7) and is provided with radially slidable elevation structures (12) for each distance element (9).

Abstract: An electronic interlock system for a tumblerless lock which utilizes radio frequency identification to enable system operation. The interlock system includes a reader which powers an antenna to generate an electromagnetic field which in turn energizes a small transponder mounted in the key. The transponder transmits a unique identification code back to the reader via the antenna where it is decoded, and if valid enables system operation, but if invalid prevents operation. The antenna is mounted at the forward end of the lock assembly. A unique key retention system and cylinder anti-rotation lock system is also disclosed.

Abstract: A cable locking device with an automatic pop-up feature is provided. The cable locking device includes a main body and a cable having one end fixed to one side of the main body and the other end releasably fastened to and locked by a spring-biased locking mechanism mounted in the main body. The cable can be easily locked to the locking mechanism simply by snapping a locking head fixedly connected on the locking end of the cable to the locking mechanism. To unlock, the user needs just to insert the associated key of the locking device to the locking core of the locking device and turn it to the unlocking position. By a head pop-up mechanism, the locking head can be popped up to the outside of the main body. The operation of the cable locking device is thus very easy and effortless.

Abstract: A combined actuation lock includes an anchorage joined firmly and inseparably to ground; a rod insertable into the anchorage and including a mechanism for temporary coupling the rod with the anchorage, the mechanism including two through holes such that a part next to a lower end of the rod has two balls that can protrude through the holes, a vertically moveable core in the rod and including an axle having a cylinder and cap at opposite ends thereof, the cylinder having a conical pusher end, and the anchorage having a central part with an annular space that can retain the lower end of the rod when the balls protrude therefrom; and a body secured to a door, the rod firmly connected to the body, and the body including devices for activating opening and closing processes of the rod, the devices including a manual activation device having at least one external lock with a cam and a cover articulated about an axis, the cover including a recess which houses a protruding part of the lock, and an electrical operation

Abstract: A lock having a hand-slideable lock-bolt. A lock body has a transverse bore passing therethrough and in which the lock-bolt can be mounted. The lock-bolt is movable between locking and unlocked positions. A retention element located in the lock body but externally operable prevents the lock-bolt when in the unlocked position from being removed from the lock body. By externally manipulating the retention element the lock-bolt can be released for complete removal from the lock body. A key operable lock cylinder is located in the lock body and prevents the retention element from being manipulated to release the lock-bolt for removal unless a key is inserted in the lock cylinder and the lock cylinder is in an unlocked position.

Abstract: A locking device which includes a casing, a U-shackle, two locking plates mounted in the casing to lock the U-shackle in the casing, a lock cylinder driven by a card to release the locking plates from the U-shackle, wherein the lock cylinder includes a mounting shell mounted in the casing, a tumbler holder mounted within the mounting shell to hold a set of tumblers, a set of springs, and a set of steel balls, the steel balls being displaced to release the tumblers from the mounting shell for permitting the tumbler holder to be lifted to unlock the locking plates when the card is inserted through a card slot on the casing into a bottom slot on the mounting shell and a bottom slot on the tumbler holder.

Abstract: An improved lock guarded from being sabotaged by prying or cutting has a round latch rod and a lock assembly that are separably locked together by way of retaining balls housed and limited in holes in a rotary unit which is spring biased so as to retractably move back and forth in a sleeve. A limiting stopper having a flanged end which is provided with a pair of opposite cuts in correspondence to the retaining balls. The retaining balls are in general limited by the flanged end without being movable up and down so that a latch rod having a groove in which the retaining balls can be housed is locked in place once the latch head is forced into engagement with the retaining balls.

Abstract: The locking device consists of a key (2) and a lock cylinder (1), with a cylinder core (5) which is rotatable in a casing (3) and has an axially extending channel (16) for insertion of a key (2) which passes through plate-shaped tumblers (7) arranged axially in succession so as to be displaceable in the cylinder core (5) and, with bit stages provided on the key shank (13), locates these tumblers (7) in a position releasing the rotation of the cylinder core (5). The locating displacement movement of the tumbler plates (7) is designed as a rotational movement around the axis of the key shank (13), and its range is preferably limited by stops (21, 22).

Abstract: A key operable electrical safety switch includes a housing and a switch operator that is operated by an actuator. A slot in the housing receives the actuator. A plurality of pin stacks, the stacks having axes that are parallel and perpendicular to the slot, are spring biased to extend into the slot. At least one of the pins engages the actuator to lock it in a fixed position relative to the housing. The actuator is released from the locked position, and displaced a predetermined stroke to actuate the switch operator and thereby change the state of the switch contacts, by a key. The key has a coded pattern of pin receiving holes corresponding to the locking pins to align the pins and release the actuator. The pins are correspondingly codeable.