Abstract: An improved locking bolt for a T-handle assembly is provided. The locking bolt has an associated security collar which encircles the bolt and prevents axial movement of the T-handle housing relative to the bolt when the threaded end of the bolt is threaded into the door frame of the closure. The security collar is held in place by a pin which extends through corresponding apertures in the collar and the bolt. A ball bearing is positioned in a recess formed in the bolt to prevent axial movement of the collar on the bolt in the event that the pin is defeated. The bolt and the security collar also act as a secondary locking mechanism by preventing rotation of the bolt when the lock is released, a special wrench being required to rotate the bolt after the lock is removed.

Abstract: A cylinder lock-key-combination, which comprises a lock body (5) having a lock cylinder (6) which is arranged to control a bolt element (4) connected thereto and which encloses a set of locking discs (7) provided with peripheral notches (13) and being symmetrical so that the cutting range of the peripheral notches (13) determining the opening combination of the lock is located on both sides of their axis of symmetry (A). A locking bar (9;10) which in its locked position is located partly in a groove (12) made in the inner surface of the lock body (5) and partly in a slot (17) in the lock cylinder (6) prevents turning of the lock cylinder (6) with regard to the lock body (5). The locking discs (7) can be turned by means of a key of the lock into a position in which the peripheral notches (13) thereof are located at the position of the locking bar (9;10) forming a uniform channel into which the locking bar (9;10) enters thereby releasing the lock cylinder (6) to turn with regard to the lock body (5).

Abstract: A barrel lock includes a cylindrical plug with a locking ball actuated by a positive acting threaded pin that is screwed into the plug. The plug slips into a mating cylindrical retainer and is locked in place by the pin forcing the ball to protrude beyond tile exterior of the cylindrical plug. An anti-rotation coupling that includes a key attaches to the plug which makes the barrel lock especially easy to install and operate. A threaded puller assures separation of the plug and retainer even when the barrel lock may be jammed due to earlier tampering. The simplicity of the invention provides for a rugged construction with positive sealing surfaces that protect against contaminants and corrosion.

Abstract: A latching system, in accordance with a first preferred, embodiment of the present invention, comprises a notched post assembly, a post gripping assembly and a handle assembly, and, in preferred embodiments, a lock assembly associated with the handle assembly. The notched post assembly is comprised of an elongated post formed at one end with at least two opposing, axially extending rows of notches or teeth and alternately disposed smooth surfaces. The post gripping assembly comprises a channel for accepting the notched end of the post and comprises movable latch elements which cooperate with the notches of the post to effect the primary latching function of the system. The unlatching of the post from the channel is accomplished by rotating the post to disengage the notches and the latch elements.

Abstract: A lock assembly includes a lock shell formed with a ball-receiving channel which receives a movable locking ball therein and which intercommunicates longitudinally extending and transversely extending holes that are formed in the shell. A flexible shackle is connected to the shell at a first end portion and is provided with a retaining member at a second end portion. The retaining member is insertable into the transversely extending hole and has a peripheral surface formed with an annular groove. A push member is disposed slidably in the transversely extending hole and is biased to slide outwardly of the transversely extending hole. A key plug is received rotatably in the longitudinally extending hole and has an inner end portion provided with a ball-receiving notch.

Abstract: A cylinder lock device (10) includes a lever (15) rotatably disposed between a casing (11) and a key cylinder (13), and a blocking member (17) disposed within a notch (16) formed in the lever (15). A concavity (18) are formed on an inner wall of the casing (11), and a chamfer (19) is formed on the key cylinder (13). When the lever (15) is in the locked position and the key cylinder (13) is further rotated to the dead-locked position over the locked position, the blocking member (17) moves away from the chamfer (19) of the key cylinder (13) and into the concavity (18) of the casing (11). When the key is pulled out from the key cylinder in the dead-locked position, the locking device is forcibly maintained in the locked position to prevent unauthorized unlocking.

Abstract: A ball latch mechanism including an annular cage concentrically located between a bearing member and a trigger. The cage includes a slot and a latch ball located in the slot in contacting relation with the trigger. The latch ball is radially movable between a first position in which the ball protrudes from the slot to interfere with movement of the bearing member and a second position wherein the ball is retracted into the trigger. Each slot is circumferentially elongated in relation to the ball such that, upon rotation of the trigger from a latch position to an unlatched position, the ball rolls circumferentially along the cylindrical surface within the slot. A biasing means may be used to urge the ball toward a preferred starting location.

Abstract: A padlock which includes a casing, a shackle having spaced grooves on two opposite ends thereof, a gear driven by the spindle of the lock cylinder thereof, two sliding lock plates driven by the gear to lock the shackle in the casing in any of a series of locking positions, and spring and steel ball sets respectively fastened to the locating block at the bottom and releasably engaged into each groove on either end of the shackle to ensure accurate locking.

Abstract: A padlock body is formed with a pair of bores which can receive short and long legs of a U-shaped shackle. The long leg has a free end spaced from a relatively deep notch and is formed between the free end and the notch with a relatively shallow circumferential groove and is further formed with a flat extending from a floor of the relatively shallow groove to the respective notch. Respective balls are displaceable between a locked position projecting radially far into the respective bores and engaging in the respective notches of both legs and an unlocked position with only the ball of the bore of the long leg projecting radially a little into the respective bore. A locking element in the body operated by a cylinder has an outer surface bearing radially on the balls and formed with relatively shallow recesses and, offset angularly from one of the shallow recesses, with a relatively deep recess.

Abstract: A padlock having a key-rotated cylinder with an end face juxtaposed with an end face of a pin rotatable in a padlock body to release a pair of balls held by the pin in notches in shanks of a shackle and wherein the end faces having entraining formations enabling rotation of the cylinder to rotate the pin. One end face has a pair of entrainer posts disposed diametrically opposite one another and offset from a center of a respective end face and reaching toward the other end face, the posts of one of the end faces being angularly offset from the posts of the other end face to define the angular play between them, and a bridge between the posts and disposed on the end face of the cylinder for taking up the play.

Abstract: In a locking apparatus that utilizes bores and blocking pins along with key cards and code cards to unlock the lock, a master card key is employed with holes in all of the master card bores and balls are used instead of blocking pins.

Abstract: A hand repairable plunger lock key includes a hollow body in which is hand inserted or removed a pair of springs and a cartridge which tends to periodically wear out and require replacement. A cap is threaded to the body and is manually removed or attached without tools. A key operating cam has a pin which is releasably secured to a mating slot in the cartridge operating shaft which protrudes from the cap. The body and cap are resiliently displaced a distance sufficient for the slot to be engaged or disengaged with the cam pin. Once engaged, the body and cap are released to normally bias the pin to the shaft slot via springs in the key used to bias the cam against the cap.

Abstract: A combinating tumbler lock featuring zero clearance between the lock plug and mounting shell including: a mounting shell having a central throughbore with a front section having a first, greater diameter and including longitudinal locking grooves, a rear section having a second smaller diameter and including longitudinal stopping grooves, and a tapered transition section between the front and rear sections; a lock plug for selective rotation within the mounting shell and having three sections corresponding in diameter to the sections in the mounting shell, the lock plug front section including a tumbler receiving opening, the lock plug rear section including a cam-receiving structure and a first radial throughbore, the lock plug also including a second radial throughbore between the front section and the tapered section; a tumbler disposed in the lock plug for selective engagement with the longitudinal locking grooves of the shell; a spring loaded stop comprising two spherical balls actuated by a compression

Abstract: A device for discouraging theft of a bicycle includes a first tube member attached to the bicycle handlebar and a second tube member attached to the bicycle fork. One of the tube members has apertures carrying rolling bodies, and the other of the tube members has recesses for receiving the rolling bodies. The tube members are concentrically rotatable. A cam member is provided for urging the rolling bodies into the recesses to fix the tube members against relative rotation, thereby enabling steering of the bicycle. The cam member is operable to a position wherein the rolling bodies are free to become retracted into the apertures, thereby decoupling the tube members and disabling steering of the bicycle.

Abstract: A device for locking a container attached to two leaves of a container door. The device consists of two pieces, one attached to each leaf of the door. A locking bar is inserted through a set of rings, attached to the two pieces, that align when the container doors are closed. A feature of the device allows the relative adjustment of the rings. In one embodiment, a separate metal plate replaces one of the rings and secures the control levers of the vertical bars of the container.

Abstract: An interchangeable core and housing assembly comprising a cylinder housing (42) which has a central opening with an alignment bracket (44) in one part of its cross-section and an interchangeable core (60) in the remaining part. The interchangeable core comprises a cylinder body (61) with a central bore and a radial projection (62) which fits into a radial slot of the aligning bracket. The radial projection has a plurality of radial recesses containing a plurality of spring-loaded top driver pins (66). A cylinder plug (46) is a inserted into the central bore of the cylinder body. Cylinder plug has dimples (78 and 80) on its exterior, a keyway (82), and a plurality of radial recesses with bottom pins (67). Interchangeability of the core is achieved by providing an annular groove (55a and 55b) formed in the central opening of the cylinder housing and locking balls (84 and 85) installed into holes (70, 71, 72, and 73) of the cylinder body.

Abstract: The invention relates to a security device, in particular an anti-theft device, of the type suitable for constraining the steering wheel to rotate with the steering column of a vehicle, or for allowing it to rotate relative thereto.

Abstract: A locking assembly used to deny access to a nut or to a bolt head to prevent theft of an article that is bolted to a body such as a vehicle. The locking assembly includes a retainer through which the bolt passes and that partially surrounds the nut or bolt head that secures the retainer to the body. The retainer includes a groove that extends circumferentially around it. The locking assembly also includes a housing that fits over the retainer and that is selectively engaged to the retainer by a ball bearing that is pushed into the groove on the retainer when a key turns the shaft of a lock which turns a cam that pushes the ball bearing into the groove. The locking assembly has an exceptionally low profile, made possible by positioning the lock perpendicular to the axis of the bolt. Further strength is imparted to the locking assembly by the fact that the retainer is almost as deep in the axial direction as the housing, and the strength of the retainer reinforces the housing.

Abstract: A door latch comprises a post and collar gripping and release mechanism cooperatively mounted to the door and door frame of a vending machine, cabinet, or the like, to provide an initial latching function in the form of a frictional gripping of the post by the collar, and further comprises a lock assembly associated with the post and collar mechanism to provide a primary locking function and to effect release of the latching function.

Abstract: A shackle lock, particularly with a long shackle, comprises a lock body and a lock shackle with two shackle arms, the free end portions of which are displaceable into a shackle arm housing of the lock body until they reach a locking position of the lock shackle. A lock mechanism is rotatable about an axis of rotation, particularly by a key. Disposed in the lock body is at least one locking element which meshes with the closure mechanism and which, upon actuation of the closure mechanism, is guided for movement out of a lock shackle arresting position in which the locking element is in engagement with the end portion of at least one shackle arm for locking the lock shackle and for movement into a lock shackle releasing position in which the locking element is out of arresting engagement with the end portion of the shackle arm. In this lock shackle releasing position the shackle arm can be withdrawn completely from the shackle arm housing.

Abstract: In the case of a locking device for a lock, especially a ring lock, comprising a connecting part (14) and a connecting part case (16) with a snap-in locking device (22, 24, 30), operated with a locking mechanism (32) a ratchet body (22) is accomodated in a guide passage (26) of a ratchet body guide element (24) oriented transversely to the direction of insertion of the connecting part (14) and is opposite a guide surface (30 at 31) at its side remote from the inserted connecting part (14). The guide surface (30), when the ratchet body guide element (24) is in a locking position, urges the ratchet body (22) behind a ratchet shoulder (20) of the connecting part (14) into an engagement position which prevents withdrawal of the connecting part (14).

Abstract: A locking device for an auxiliary lock comprising a rotatable ring provided with inner teeth around the inner peripheral surface and a traditional lock additionally provided with a lateral hole to fit a spring and a steel ball pushed by the spring therein, the ball extending a little out of the lateral hole to engage with the inner teeth in the rotatable ring, the inner teeth being able to be felt surely to slide over the ball when the rotatable ring is rotated.

Abstract: An attachment (9) which transforms a lock cylinder having a cylinder housing (30), an aligning bracket (27), and a cylinder core 41a into a lock cylinder with an interchangeable core (40a). The interchangeable core (40a) is held in place and is attached to the interchangeable attachment (9) using a conventional cylinder core nut (21). With a control key (50) inserted into the cylinder keyway (42) within an interchangeable core (40a), a push rod (51) comes into contact with a plunger head (19) at the front end of the plunger (11). The plunger (11) is pushed back, allowing the locking balls (13) to recede into the inward position; at this point, the only thing holding the interchangeable core lock cylinder (40a) in the cylinder housing (30) is the security back-up pin (14). With the control key (50) inserted, turn right five degrees and pull. The interchangeable core lock cylinder (40a) will come out. A new interchangeable core lock cylinder (40a) can be inserted using the same procedure.

Abstract: An improved quick release glove box latch mechanism (10) includes a button (76) having at least one undercut (90) which can be disposed in register with one or more fingers (146) of a lever (120) to interlock the lever (120) to the button (76). The button (76) can be integrally molded to form the undercuts (90). An outer collar (270) can be integrally molded to a housing (70) of the latch mechanism (10) and can extend rearwardly from the housing (70). A locking collar (78) is mounted within the outer collar (270). The lever (120) pivots about a pivot pin (122) and is biased to a rest position by a torsion spring (124). A first end (128) of the torsion spring (124) is received in a small bore or slot (160) in the lever (120). A second end (130) of the torsion spring (124) is disposed in a small bore or slot (284) in the housing (70) in such a manner that the pivot pin (122) retains the second end (130) of the torsion spring (124) in the housing (70).

Abstract: A kind of pry-proof computerized mechanical lock which is an integrated lock structure of mechanism and circuit. The front half inside the lock has several plates. The rear half of the lock has a rotor and a fixed seat which supports conductive bars in a special line-up. These conductive bars are biased by respective springs. The rear half of the key is aligned with several plates inside the lock which have portions engageable with openings in the key. When teh key is inserted, it matches accurately the plates through these opening and holes. When the key is turned, the rotor is made to turn at the same time to make the specially-shaped conductive plates to come into contact with the conductive bars. The circuit is then conductive to drive the electromagnetic bolt for opening a door.

Abstract: Theft of a bicycle is discouraged by a locking mechanism in the front headstem that controllably engages the handlebar-attached headstem with the front fork or disengages the headstem and fork for free relative rotation. A shaft attached to the fork and a sleeve attached to the handlebar clamp are connected at a locking junction which is rotatable as a whole in the front journal of the frame. A key operated cam moves a locking roller radially outwardly of the shaft to engage a receptacle in the sleeve for engagement or allows the roller to retract into an aperture for disengagement. The shaft and sleeve have complementary conical tapers axially positioned by a split conical bushing. A cylinder lock operates the cam via a key having a substantially tubular configuration with a uniquely configured axial end for positioning lock pins against axial spring pressure.

Abstract: The disclosure relates to a locking cylinder and a key therefor. The locking cylinder has a flat slide plate and at least one pin tumbler for selectively engaging a corresponding recess in a key inserted into the lock. Insertion of the proper key which results in displacement of the pin tumbler allows longitudinal sliding movement of the flat slide plate within the cylinder lock. Sliding movement of the flat plate aligns the side edges of the flat plate with side bar pins so that, following such longitudinal displacement, the body of the cylinder can be rotated relative to its housing to effect a locking or unlocking of the lock mechanism.

Abstract: The cylinder lock comprises a plug and auxiliary pins which are disposed in seats, provided on the plugs and arranged laterally to the channel of introduction of the key. On introducing the key into the lock the pins are displaced from their seats such that, when the key is not the right one, they will engage into recesses on the outer casing of the lock, thus inhibiting rotation of the plug. By intervening on the pins it is also possible to obtain a set of hierarchically different locks for fabricating master key systems.

Abstract: A door latch comprises a post and collar gripping and release mechanism cooperatively mounted to the door and door frame of a vending machine, cabinet, or the like, to provide an initial latching function in the form of a frictional gripping of the post by the collar, and further comprises a lock assembly associated with the post and collar mechanism to provide a primary locking function and to effect release of the latching function.

Abstract: A permutation lock chamber has a chamber shaft extending therethrough which is held against rotation when the chamber is in a locked condition and which is rotatable when the chamber is in an unlocked condition. The chamber shaft is connected to the shaft of an outer door handle through a clutch. When the chamber is in its unlock condition and the outer door handle is rotated, the clutch engages and the chamber shaft rotates with the outer door handle shaft. When the chamber is in its locked condition and the outer door handle is rotated, the clutch slips to permit rotation of the outer door handle shaft without rotation of the chamber shaft.

Abstract: A barrel lock and a key for locking and unlocking the barrel lock. The lock has a hollow barrel with a spring loaded plunger that reciprocates within the bore of the barrel. A recess is provided in an axial blind bore formed in the rear end of the plunger, the recess defining a gripping surface for unlocking the barrel lock. A spring loaded baffle washer having a key central aperture is positioned within the barrel bore rearwardly of the plunger. The baffle washer limits access to the plunger and prevents unauthorized unlocking of the barrel lock.The key has elongated outer expanding fingers and an inner coaxially arranged expander rod. The expanding fingers are sized and shaped so that they can pass entirely through the key central aperture of the baffle washer. When the key is fully inserted into the lock and the key handle is operated, the expanding fingers radially expand and press against the gripping surface in the blind bore.

Abstract: A door latch comprises a post and collar gripping and release mechanism cooperatively mounted to the door and door frame of a vending machine, cabinet, or the like, to provide an initial latching function in the form of a frictional gripping of the post by the collar, and further comprises a lock assembly associated with the post and collar mechanism to provide a primary locking function and to effect release of the latching function.

Abstract: A cylindrical combination lock body is associated with a flexible shackle, both ends of which are connected to a single end of the lock body so that the body and shackle are fitted within an approximately constant diameter. A cylindrical sleeve is sized to telescope over the shackle and receive the lock body. The sleeve has an annular groove on its interior face, which is positioned to mate with one or more detent balls in the cylindrical wall of the lock body. A plunger mechanism in the lock body can release the detent balls to permit insertion or removal of the body from the sleeve, and the plunger also releases the shackle when the combination is properly selected. The sleeve may be mounted in any sort of storage tube and enables the entire lock assembly to be stored in a secure and concealed manner.

Abstract: A flow control device for use in a fluid or gas line is disclosed. In one example, the device controls the flow of air to the brakes of a large vehicle such as a semi-trailer truck. The device includes a housing having an inlet port and an outlet port both of which communicate with the interior of the housing and a moveable valve assembly which selectively can close or open the ports with respect to one another. The valve assembly includes means for axially moving the assembly and locking it in open and closed positions. Means are provided for biasing the valve assembly to an open position to prevent accidental closing of the valve which possibly could result in the application of brakes of the vehicle.

Abstract: An anti-theft tamper-proof lock valve for automobile applications for securing the fuel line or the hydraulic brake line to prevent theft having a manually-operated lock in communication with a slide valve positioned in the fluid line, the slide valve selectively movable from an open to a closed position, the slide valve locking in a closed position if the communication conduit between the lock and the valve is subject to tampering.

Abstract: A High Security Door Locking Device comprises a locking cylinder including a latch control cam rotatably operable by a properly formed key received within the cylinder. An electrical solenoid is inserted into the rear of the cylinder with a retractable core which interferes with the operation of the latch control cam when the solenoid is unoperated. A solenoid controller is connected to operate the solenoid in response to entry of a defined code into the solenoid controller to thereby permit operation of the latch control cam. The solenoid controller operates the solenoid only for a selected period of time in response to the entry of a defined code such that a valid code must once again be entered into the controller if the cylinder is not operated during the enabled time period.

Abstract: A steering shaft assembly being composed of an upper part and a lower part. The lower part is cylindrical in shape and is rotatably received by a cylindrical outer housing with the upper part fixedly secured thereabove on the outer housing. The lower part is integral with a steering shaft. An engaging block assembly is freely rotatable and is longitudinally slidable within the steering shaft assembly between an upper limit position and a lower limit position. The engaging block assembly comprises an engaging block and an actuating block. A number of balls are disposed between the steering shaft assembly and the engaging block assembly as well as between the engaging block and the actuating block for transmitting rotational movement. A steering wheel is fixedly mounted on the engaging block assembly by a lock assembly which further controls releasing and engaging between the engaging block assembly and the steering shaft assembly.

Abstract: This invention relates to an adjustable car lock device and, in particular, to one including a lock body with one end that connects to a barrel which has one end connected to the lock body and other end connected with a cylinder. The cylinder accommodates a lock hook which has rotatably adjustable rod whereby the length of the lock device may be adjusted to meet different distance between steering wheel and the brake/gas pedal. The lock hook has a U hook which is foldable to save storage space.

Abstract: A plunger type lock has an elongate shank or housing with an enlarged head at one end and at least one lock element movable to project from the housing to engage a grooved or recessed member and lock the same to the housing and to retract into the housing to release the grooved or recessed member, a plunger movable in the housing by a special key to control the position of the lock element and an immovable security rod extending through the plunger and axially substantially to the end of the housing through which the key enters. Due to the presence of the security rod, a special key is required to operate the lock.

Abstract: A magnetic lock which may serve, itself, as a locking device, or may form part of an otherwise conventional locking device, is provided with a body member, detent balls, and a detent locking plunger that is disposed in an axially extending interior space of the body member in a manner enabling the locking plunger to be displaced within the body member between a first location, at which the locking plunger causes the detent balls to be locked in a position protruding from the body member, and a second location at which the locking plunger enables the detent balls to retract into the body member. The body member is provided with a sealed end having a key seat upon which a key may be seated for shifting the locking plunger between its first and second locations.

Abstract: Locking means for preventing displacement of a displaceable member relative to a stationary member by means of an armature operatively associated with an electromagnet, the armature having a bipartite structure: a locking pin member engageable with the displaceable member and a sleeve member coaxially surrounding the locking pin member located on an end of an armature extending from the electromagnet. A plurality of radially mobile balls interact within bores in a portion of the stationary member extending between the locking pin member and the sleeve member to engage grooves in the locking pin member to lock or secure same in a position in which the locking pin member is engaged with the displaceable member. Selective energization of the electromagnet selectively positions the sleeve member and a groove located within an interior wall of the sleeve member to selectively limit radial movement of the balls. In a deenergized state, the electromagnet permits axial displacement of the locking pin member.

Abstract: A bar lock comprising two toothed plates (1) and (2) and a rotatable cross element (3) which transmits movement to said plates. The cross element (3) is operated by two mechanisms, one internal and one external, which act independently of each other; the internal mechanism is composed of elements which are specular to the elements of the external mechanism. Each of said mechanisms comprises the following elements: a recess (25) provided in the base plate (18) and in the counter-plate (12) respectively; a rotary element (5) rotatable within said recess, the rotary element having a seat for entraining a roller (6) and having engagement means for engaging a tang of a cylinder or knob; a disc (7) rotatable with the cross element (3) and having notches (26) and (27); a slider (9) maintained in contact with the cross element by a spring (10) fixed to a spring-guide block (14).

Abstract: A deadlock includes a casing, a front knob and a rear knob respectively rotatably formed on the front and rear walls of the casing, and a slidable latch reciprocatively mounted in the casing as driven by either the front or rear knob, wherein the latch is formed a triangular locking tongue having two inclined surfaces so that the latch can be conveniently used in a bi-directional door when opening the door either outwards or inwards.

Abstract: A combination lock having both dial and key locking mechanisms and having long and short shackle legs which lock has a body containing a reciprocal cam plate for moving steel balls into and out of engagement with the shackles from lock to unlock position. An extending arm mounted on the cam plate engages the dial and key control means having a second extending arm is also engageable with the cam plate. The lock includes a spring upset arrangement.

Abstract: A key for a lock of the plunger operated type in which an elongated housing has an internal axially movable plunger which releases locking elements when moved toward the open end of the housing, said key having a body with elongated fingers extending forwardly from the housing and an elongated mandrel disposed between the fingers. A finger depth limiter or spacer is disposed at the rear end of the fingers and protrudes forwardly from the foremost face of the key housing for abutting a portion of the lock to limit the distance the fingers can extend into the lock. In one embodiment of the invention an axially adjustable cap is mounted on the forward end of the housing to allow adjustment of the amount the spacer projects from the housing.In one embodiment of the invention internal structure is provided that allows the fingers to shift forwardly a predetermined distance if the forward end of the housing is removed by grinding in an effort to modify the key for use in locks with which it is not intended for use.

Abstract: A security lock which has a housing (20) with a faceplate (22) and cover (24) forming an enclosure. A key release cylinder (30) is mounted within the cover (24) allowing manual actuation from the exterior. An electromagnetic solenoid (32) is mounted inside the housing (20) providing actuation of the lock from an external electrical circuit not part of the device. A spring loaded latchbolt (34) penetrates through the faceplate (22) and is equipped with a roller (36) for alignment. The latchbolt (34) provides the dead bolt for the lock. A door latch assembly (56) having a follower (70) inside a barrel (60) restrained by a plurality of balls (74) provides the latch. Both the latchbolt (34) and door latch (56) are retracted simultaneously by either the rotation of a key within the cylinder (30) or electrical power to the solenoid (32). A connecting linkage within attaches the elements together and a pushbutton switch (92) provides indication of the lock' s position through internal electrical contacts.

Abstract: A double-acting barrel lock and key in which the lock has a hollow plunger which reciprocates between a security forward locking position and a normal rearward unlocking position. The lock also has a lock pin coaxially mounted within the hollow plunger for reciprocating between a forward unlocking position and a normal rearward locking position. When a nail-type pick is inserted into the rear of the lock and drives the lock pin forwardly to its unlocking position, a spring urges the hollow plunger forwardly to its security locking position in which the locking balls are maintained in their outward locking position.A key has double-acting means for simultaneously maintaining the hollow lock plunger in its normal rearward unlocking position while moving the lock pin to its forward unlocking position, thereby permitting the locking balls to move inwardly to their unlocking position.

Abstract: A plunger type lock comprising a barrel with an axial bore, locking members in the form of balls housed in the barrel wall and extensible outwardly from the barrel by a plunger axially slidable within the barrel bore, at least one further ball housed in an opening in the wall of the plunger and extensible outwardly therefrom and a peripheral groove on the inner wall surface of the barrel for receiving the further ball, the further ball being forceably moved and held in the barrel's groove by an incorrect key, instrument or an implement to prevent and resist movement of the plunger whenever an unauthorized attempt to operate and open the lock is made.

Abstract: The invention relates to a device for locking the rotational movement of a steering column of a motor vehicle by means of a clamp locking mechanism with rollers (4) parallel to the axis, which rollers clamp the steering column in both rotational directions between a cylindrical track and clamping surfaces oblique to the track and are guided in a coaxial cage rotatable about the steering column. The cage can be carried along by the steering column in both rotational directions in each case into one of the two clamping positions and can be fixed in a central position located between the two clamping positions, in which central position the rollers release the steering column. All the rollers (4) are surrounded externally by at least one elastic ring (6) coaxial to the column (1), which ring elastically loads the rollers towards the steering column.

Abstract: The invention relates to a steering shaft anti-theft device for a motor vehicle, of the type comprising a lock bolt interacting with at least one radial hollowed-out part of a sleeve integral with the steering shaft.The anti-theft device according to the invention is characterized by the fact that the said sleeve is hollow and has an external slit over its entire periphery, the interior of the housing thus formed in the sleeve containing a plurality of free rotary elements and a stop integral with the sleeve, the assembly consisting of the said rotary elements and stop not occupying the entire circumferential space of the said housing, the lock bolt being able to occypy an unlocking position in which it is completely outside the said sleeve and a locking position in which it penetrates the said housing of the sleeve via the said peripheral slit.