Abstract: A cabinet lock is disclosed which is easily convertible between a drawer lock and a door lock, by rotating the lock cylinder 90 degrees within the lock body. The cabinet lock includes a lock body with a mounting plate and an extending sleeve that defines a central opening. A portion of the sleeve is indented inward to form a two-sided right angle notch that projects into the internal cavity of the sleeve, with an aperture through each side of the notch. The lock cylinder has first and second notch mating sections, rotated 90 degrees from one another about the cylinder, each having a threaded bore therein. The lock cylinder can be inserted into the sleeve in a first position, or in a second position rotated 90 degrees from the first position, and fixed in place with a screw that passes through one of the bores and one of the apertures. A lock plug with a bolt driving mechanism is adapted to fit within a longitudinal opening in the lock cylinder, and a bolt is operatively attached to the bolt driving mechanism.

Abstract: A lock having a body with a central axis, an actuator, first structure cooperating between the body and actuator for mounting the actuator for movement relative to the body between first and second positions, a mounting plate defining a surface facing axially of the body to confront a wall on which the lock is mounted, second structure cooperating between the mounting plate and at least one of the body and actuator for a) maintaining the mounting plate in operative relationship with the body and b) allowing the mounting plate to be moved selectively axially relative to the body, and third structure cooperating between the mounting plate and at least one of the body and actuator for fixing the mounting plate in a plurality of different operative positions relative to the body.

Abstract: A clip for securing a cylindrical lock shell within a mounting hole by frictionally engaging a region of the shell includes a pair of extending legs, each including a flat portion, a curved portion and a contact portion. The legs provide the frictional contact to the lock shell. Also included is a generally planar bridge portion connecting the two legs. The bridge portion is co-planar with the flat region on the legs. The curved portion of each leg has an apex, which is disposed eccentrically of a longitudinal center line of the cylindrical lock shell.

Abstract: A lock mechanism has a cylindrical housing with an axial bore therethrough, and a key-controlled core rotatable within the bore between locked and unlocked conditions and removable from and installable in the bore in the unlocked condition. The core has a plug at its rear end which is mateably engageable in a socket on the front face of a shifter, for rotating the shifter within the bore in response to rotation of the core, and thereby operating a latch member coupled to the shifter. A radial tab on the housing is receivable in an arcuate groove formed in the outer surface of the shifter for limiting rotation of the shifter to facilitate retention of the shifter in the single rotational orientation upon removal of the core from the housing. An O-ring on the shifter frictionally inhibits rotation thereof.

Abstract: A lock cylinder replacement device for replacing locks is inserted into a lock cylinder hole or sleeve after a lock cylinder is removed from the lock cylinder hole or sleeve. The lock cylinder replacement device includes a threaded bolt and a pan head portion. The lock cylinder replacement device may also include a rear fastening plate and a mounting nut for mating with the threaded bolt to secure the lock cylinder replacement device in the lock cylinder hole or sleeve.

Abstract: A quick release lock retaining bracket facilitates the quick removal, replacement, or transfer of an entire locking mechanism from one restricted access chamber such as a drawer or cabinet to any other such chamber, therein permitting a rapid shift of exclusive personal control of any restricted access chamber to a designated person. The retaining bracket includes a receiving plate fastened to the inside of the front access panel of a drawer, cabinet, or the like. The receiving plate is centered over a hole normally provided for the cylinder portion of a key-type lock, and is formed with portions thereof removed to receive the lock housing in a way that permits the housing to rest against the inside surface. In this way, a person can slide or advance the lock forward through the receiving plate to the inside surface which acts as a fence or backstop for the lock mechanism to rest upon, the lock being held in its final operating position.

Abstract: A hinged access display and dispensing device for lottery-type tickets includes a housing of box-like configuration with a door that is pivotally attached at a lower portion of the housing rear end. A lock assembly is secured in an upper portion of the door and has a head portion located adjacent the door exterior and a body portion extending from the head portion through the door. Projections are formed on the exterior of the lock assembly body portion and the door to coact with one another to secure the lock assembly in the door. In a preferred embodiment, the projections on the lock assembly are in the form of threads on the body portion and the projections on the door are in the form of tabs that extend into the grooves of the lock assembly body portion threads.

Abstract: A door lock which does not decrease the strength of an outer end portion of the outside rotary shaft includes an inside lever handle and an outside lever handle which are attached to a lock body assembled into the door, and a retracting operation of a latch bolt of a latch arranged on latch shaft perpendicular to a handle shaft is carried out by rotation of an inside or an outside rotary shaft of the lock body. A cut portion for drive opposite to a slot of an enlarged portion is formed at an inner circumferential wall of a tubular fitting portion of the outside lever handle, and that left and right cover portions in a projection form of an outer tube of the cylinder lock are respectively fitted over the cut portion for drive and the slot through left and right cut portions of the outside rotary shaft.

Abstract: An arm is affixed to the inner face of the lock cylinder and prevents the lock cylinder from being removed from the lock case. A screw attaches the arm to the lock cylinder. The lock cylinder has a cam which is also attached to the inner face of the lock cylinder and rotates to operate the lock case mechanisms. The cam, when it is rotated into a lock position, covers the head of the screw and prevents the screw from being removed. Since the cam prevents removal of the screw, the arm cannot be removed from the lock cylinder and the lock cylinder cannot be removed from the lock case.

Abstract: A retainer assembly for attaching a lock cylinder to a door panel, the lock cylinder having a length and a plurality of radially spaced flanges disposed on and raised outwardly therefrom. The retainer assembly comprises a retainer clip having at least two laterally spaced apart flanges, the at least two laterally spaced apart flanges preventing rotational movement of the lock cylinder when the lock cylinder is engaged with the retainer clip. A base is provided having a first side, a second side, and an open-ended slot. The base is connected to the retainer clip at the second side. The open-ended slot is provided for slidingly engaging the lock cylinder such that upon engagement of the lock cylinder, the base flatly abuts against the door panel on the first side and the retainer clip abuts against the plurality of radially spaced flanges of the lock cylinder.

Abstract: A lock assembly is disclosed for small computers and similar electronic devices of the type that must be locked yet must permit access for repair even when the proper key is not available to the repair person without requiring that the expensive lock or its mounting be damaged. Further, readily visible evidence of the forced access must be apparent to a casual observer of the computer. Forced entry detection is provided by the instant invention through the use of a fracture ring having support elements seated into recesses in a rebated cover opening which hold the lock assembly in place during normal use but which allow the assembly to become axially misaligned after the lock has been forced. Frangible portions of the lock support hold the lock assembly in both rotational and axial stability which stability is lost when the frangible portions are broken.

Abstract: A deadbolt or auxiliary lock is disclosed which can be mounted in a small (11/2") or large (21/8") lock set hole. A reversible cast adapter is provided which has a plate portion, small and large diameter annular lips on one side and a small diameter lip on the other side with a torque limiting feature projecting axially from each small diameter lip.

Abstract: A key 20 is formed with a blade 22 having six bits 30, 32, 34, 36, 38 and 40 formed along one edge of the blade. A shoulder 42 is formed on a trailing end 28 of blade 22 and is positioned to cooperate with a front face 82 of a plug 50 of a five-pin cylinder lock 46 to locate bits 30, 32, 34, 36 and 38 adjacent five respective sets of tumbler pins in the operation of the lock. Key 20 can also be used with a six-pin cylinder lock 110. Shoulder 42 is moved through a slot 130 in a front face 134 of a plug 114 of lock 110 and engages a stop surface 132 whereby bits 30, 32, 34, 36, 38 and 40 are properly positioned adjacent six respective sets of tumbler pins in the operation of the lock.

Abstract: A rotary locking cylinder for a safety lock has a housing and a crosspiece. A recess is incorporated in the crosspiece from the top, a locking element being inserted into this recess. The recess connects an upper outer side of the crosspiece with a transverse bore hole in an arm of the crosspiece. In the assembled state, the crosspiece is inserted into a recess of the cylinder pocket and connected with a transverse pin. In order to secure the transverse pin against longitudinal displacement in the cylinder pocket, this transverse pin has a circumferential groove in which the locking element engages from above. In order to exchange the crosspiece, the rotary locking cylinder is rotated about its longitudinal axis in such a way that the cylinder pocket is on top. During rotation, the locking element falls downward due to the force of gravity and releases the transverse pin.

Abstract: A lock shell comprising a tubular outer shell for receiving lock components, illustratively a spindle, the shell having an annular key way at the front face; the shell has an enlarged head portion at the front and a reduced diameter cylindrical portion extending from the head portion to the rear of the shell; at least one longitudinally extending lug member is disposed on the outer periphery of the cylindrical portion; the at least one lug starts at the enlarged head and extends rearwardly a minor portion of the length of the shell; the lug has portions successively from the enlarged head consisting of straight top and side walls, inwardly tapering top and side walls, and diminishingly angled walls.

Abstract: A quick release lock retaining bracket facilitates the quick removal, replacement, or transfer of an entire locking mechanism from one restricted access chamber such as a drawer or cabinet to any other such chamber, therein permitting a rapid shift of exclusive personal control of any restricted access chamber to a designated person. The retaining bracket includes a receiving plate fastened to the inside of the access front panel of a drawer, cabinet, or the like. The receiving plate is centered over a hole normally provided for the cylinder portion of a key-type lock, and is formed with portions thereof removed to receive the lock housing in a way that permits the housing to rest against the inside surface. In this way, a person can slide or advance the lock forward through the receiving plate to the inside surface which acts as a fence or backstop for the lock mechanism to rest upon, the lock being held in its final operating position.

Abstract: A key lock mechanism which can be made entirely of molded plastic parts having (1) a lock shell that can be snap fit in a mounting opening, wherein the shell is a predominantly cylindrical casing having a front end, a rear end, and an interior longitudinal channel; and (2) a lock plug, having a front end and a rear end, longitudinally housed within and rotatable about the longitudinal axis of the shell. The front end of the lock plug has a keyway allowing the insertion of a key to operate a double-acting, bar tumbler having a rocker body with a front peg and rear peg; an integral axle perpendicular to and connecting the center rocker body to a left and a right pivot pad upon which the bar tumbler pivots. The insertion of the key pivots the bar tumbler within the longitudinal shell channel and enables the key to turn the plug within the shell to operate the lock. The rear end of the plug receives a snap on actuation means such as a cam.

Abstract: The invention is directed to a web which has a plurality of parts extending in the longitudinal direction of the web and placed against each other. These parts may be stamped sheet metal parts or cast parts, which can be produced in a very cost-effective manner. Two outer parts can form a shell, into which a stamped interior part of steel has been inserted. These two parts can be produced cost-effectively as cast parts, for example of zinc, aluminum or a plastic material, and the interior part (12) can be produced as a stamped sheet metal part. The invention permits a particularly cost-effective production of the web and in bending tests was shown to be particularly stable.

Abstract: A method of installing a combination lock deadbolt assembly includes the steps of providing a combination lock deadbolt assembly for mounting on a door surface in combination with a drill resistant hard plate. The hard plate, mounted on the outer door surface, includes legs extending through the door for attachment to the deadbolt assembly. A drill guide is provided having a tapered outer surface which corresponds to tapered openings in the combination lock deadbolt assembly. In use, the tapered drill guide is inserted into the openings in the deadbolt followed by insertion of a drill bit which drills holes through the door. After drilling each hole, the larger holes are drilled to facilitate attachment leg insertion into the door. The deadbolt can then be mounted to the door surface and to the drill resistant hard plate. A combination dial lock can then be mounted in the deadbolt assembly.

Abstract: A key operated lock assembly for blocking access to an opening in a static wall structure. The lock assembly is formed by a lock sleeve adapted for positioning behind the opening adjacent the rear wall of the static wall structure, wherein the lock sleeve has a tubular sleeve member extending rearwardly therefrom. The forward end of the lock sleeve is provided with a dome-shaped head portion which is formed integrally with the sleeve. A lock plug is provided having a front end and a rear end and sized for insertion through the opening in the static wall structure and into the sleeve member of the lock sleeve positioned adjacent the rear wall of the structure. The lock plug is also provided with lock pin elements which cooperate with pin detents formed at the back end of the lock sleeve which cooperate to lockingly engage the lock plug to the lock sleeve with the static wall structure interposed therebetween in order to block access through the opening in the static wall structure.

Abstract: A device for removing a damaged locking cylinder, which eliminates the need for removing the escutcheon plates, which employs an internal locking bolt acting in concert with locking arms mounted on a locking plate, to selectively tighten or loosen the locking cylinder, as required, by use of an external adjusting mechanism which mates and co-acts with the locking bolt. Also provided is a cylinder protector which is affixed over the locking cylinder to deter vandalism of the cylinder by use of a tool.

Abstract: A vehicle steering wheel lock assembly includes a body having a base extending therefrom, a first hook member securely attached to a first side of the body, and a second hook member partially received in a second side of the body. A cylinder is removably received in the base. A lock piece is slidably received in the body and actuatable by the cylinder. The second hook member is releasably engageable with the lock piece and is movable in two directions of away from and toward the first hook member when the cylinder is in an unlocked position and is movable in only one of the two directions when the cylinder is in a locked position.

Abstract: A lock housing having a flange; a hollow body for receiving a lock, the body being connected to the flange at one end, having an external surface and being insertable in a hole in a wall; and a spring for mounting the housing in the hole, the spring occupying a range of positions between a compressed position and a non-compressed position, the compressed position occurring when the spring is substantially parallel to the external surface and the non-compressed position occurring when the spring is at rest, the spring occupying the compressed position during insertion of the hollow body into the hole and occupying a position other than the compressed position when fully inserted to bias the flange against the wall.

Abstract: A lock unit with an escutcheon assembly to be mounted on a movable closure and a retainer clip to maintain the escutcheon assembly in an operative position on the movable closure. The escutcheon assembly defines a first shoulder. The clip has a biasing portion defining a second shoulder for bearing on the first escutcheon assembly shoulder and a third shoulder for bearing on a surface of a movable closure on which the escutcheon assembly is mounted with the escutcheon assembly in its operative position and the retainer clip and escutcheon assembly in assembled relationship. The biasing portion of the retainer clip is in compression between the second and third shoulders to positively maintain the escutcheon assembly in its operative position.

Abstract: A double cylinder tubular deadbolt having the inside cylinder provided with a removeable cap or cover which covers the exposed screws in the flanged face of the inside cylinder. The removable cover fits over and covers the face portion of the inside cylinder. The cover is retained in place by an escutcheon which fits over the flanged face with the cover thereon.

Abstract: A shackleless padlock system is provided which includes a lock mechanism having a cylindrical body both protruding from one end thereof with a key-operating locking pin which retractably protrudes from the lock mechanism from a first to a second position for selectively engaging portions of a padlock body in order to either provide bolt engagement with the pad-lock body or for guiding a lock mechanism within the padlock body. Access to the locking pin in order that the lock mechanism may easily be removed and replaced with a different lock mechanism.

Abstract: An adaptor 16 is formed with a pair of cylinders 22 and 24 which are in axial alignment, of different diameters and extend from opposite sides thereof. One of the cylinders 22 and 24 fits in complementary fashion into one of a pair holes 14 and 12, respectively, to preclude any movement in a radially lateral direction of adaptor 16 relative to the axis of the hole. The other one of cylinders 22 and 24 fits, respectively, into a groove 44 formed in a face 42 of a guard collar 18 or into a cylindrical opening 36 of the collar. The cylinders 22 and 24 are joined by integral links 26, 28 and 30 so that the precluding of radially lateral movement of the cylinder 22 or 24 within its hole 14 or 12, respectively, prevents radial movement of collar 18 relative to the axis of the hole.

Abstract: A door handle assembly having a snap-in attachment apparatus for assembling a key cylinder to a door handle assembly without the use of separate fasteners and retainers. The door handle assembly has a bored tubular extension that utilizes slots to define tubular sections that yield radially outward upon inserting the key cylinder into the bore of the tubular extension. The tubular sections have openings that receive lugs extending from the periphery of the key cylinder and that prohibit inward axial movement and rotary movement of the key cylinder. A shoulder in the door handle assembly abuts an end of the key cylinder to prohibit outward axial movement of the key cylinder. The engaging surfaces of the lugs and tubular sections have drafted angles that pull the tubular sections radially inward toward the key cylinder upon a push-in force applied to the key cylinder from outside the vehicle and directed toward the center of the vehicle.

Abstract: A burglar proof lock for instance for a door, trunk lid, ignition switch, steering column, etc. of a motor car and of the type which is formed with a rotatable lock cylinder comprising several latch plates which in a predetermined order become partly expelled in the radial direction from the lock cylinder when the key is removed from the lock cylinder. In the expelled position, the lock plates lockingly engage a latch sleeve formed with several inner, annular grooves adapted to receive the latch plates of the lock cylinder in the locked condition of the lock. The lock cylinder can rotate freely in the latch sleeve but can not be moved axially in relation to said latch sleeve in such locked condition.

Abstract: A lock cylinder apparatus includes first and second lock cylinder assemblies rigidly fixed to a lock case and coupled to an internal locking mechanism contained in the lock case. The first lock cylinder assembly includes a lock body and an adaptor ring around the lock body. The adaptor ring is sized to fit into a cylinder assembly mounting hole in the lock case. A threaded member extends through the lock case and interconnects the second lock cylinder assembly to the adaptor ring of the first lock cylinder assembly. Illustratively, a hidden setscrew in the first lock cylinder assembly can be moved to engage the adaptor ring and anchor the lock body in a non-rotatable position in the adaptor ring.

Abstract: The lock cylinder with an external housing accommodates, on its rear face, a closure element acting upon a mortise lock or the like and with an exchangeably inserted core unit the casing of which contains housing pins as tumblers and a cylinder core equipped with a key channel, said cylinder core also receiving core pins as tumblers and being connected merely in a plug-in manner to coupling pins which issue from said closure element and project freely into a socket in said external housing serving for insertion of said core unit, wherein engagement of said coupling pins extends only over a rear region, which is free from key channels, of said cylinder core.

Abstract: A lock for front-mounting through a panel opening in a panel, the lock having a face plate, a barrel extending transversely from the face plate, and a shaft extending from the barrel to receive a cam. The lock has a retaining spring with a base and two legs, the base and legs being formed of spring steel and being integral with one another, the base having a central opening receiving the shaft and being so dimensioned as to be able to pass through the panel opening when the base is mounted on the shaft, each of the legs having two sides of different lengths so that the outer ends of the legs are angular. The legs extend generally transversely of the base with the outer ends being spaced apart a greater distance than the size of the panel opening, so that when the lock is pressed through the panel opening the face plate will engage with one side of the panel and the outer ends will engage with the other side of the panel, securing the lock in position.

Abstract: A pre-assembled front-loading lock having a first cam fixedly mounted on its shaft, a second cam parallel to the first cam and rotatably mounted on the shaft, and a locking member fixedly mounted on the shaft to secure the second cam against rotation with respect to the first cam when the second cam has been rotated about the shaft a predetermined amount. As a result, the lock with the cams can be pressed through a panel opening and the cams thereafter be readily moved into operating position. A stop is provided on the locking member to prevent the second cam from being rotated in the wrong direction.

Abstract: A keylock system comprising a lock and a key for opening and closing the lock, the key having an outer radial retaining stub protruding radially outward, the lock including a base plate for attachment to a surface of an enclosure, a cylinder rotatably mounted within the base plate, the cylinder having a first end adapted to engage the key, and a second end protruding from the base plate, the cylinder being rotatable between open and closed positions, and retaining sleeve threaded onto the cylinder. The retaining sleeve comprises a plurality of retaining fingers engaged with the cylinder to a low rotation thereof, an immobilizing finger for engagement with the base plate to prevent rotation of the retaining sleeve, and a top annular surface defining an opening having a reduced diameter which allows passage of the key therethrough.

Abstract: A lock is disclosed which includes a housing having an inside bore, a cylinder selected from a group consisting of interchangeable core cylinders and insert cylinders, the cylinder having an outer contour, the inside bore of the housing being at least as large at any point as the outer contour of the cylinder, and a device for adapting the inside bore of the housing to correspond to the outer contour of the cylinder. Also described is a transmission assembly mounted to the housing and cooperating with the cylinder to impart desired motion to a latch mechanism of the lock. An advantage of the lock is that it may accommodate distinctively different cylinder types with different form, fit and function.

Abstract: An auxiliary lock with an anti-breakage device having a seat combined with a base and an inner ring covered with an outer ring, a latch unit being deposited in the housing and having a recessed opening in an outer end for a reinforcing plate to fit therein and then a face plate sealing up the reinforcing plate to protect the latch unit from breakage by illegal attempt.

Abstract: A locking device consisting of key (2) and locking cylinder (1), in particular for the actuation of electric microswitches on keyboards, telephone or the like, has a locking cylinder housing (5) and a cylinder core (11) arranged for rotation in the bore thereof and cooperating with tumblers (16). The key (2), which has a stepped-down key shaft (35) is insertable into the cylinder core which has a head plate (12), coming after a specific rotation to rest against stops of the locking cylinder housing (5). In order to obtain a simplified construction with increased security and small structural length, there is a free space between the head plate (12) of the cylinder core (11) arranged on the front side of the locking cylinder (1) and the head end (14) of the locking cylinder housing (5). Into the free space the key-shaft shoulder (37) enters, and one or more stops of the locking cylinder housing (5), are arranged at different distances from an axis of rotation of the core.

Abstract: Invention patent for "Safety Lock" comprised by a mechanism (1) having a case composed of two parallel plates (2) interconnected by spacers (3), internally provided with an operating drive (4) for a latch bolt (5) and for a latch (6), this latter being also operable by means of a handle or alike, which passes through a corresponding opening (7), and, further, having a barrel block (8) incorporated in said mechanism (1) in transversal direction and being provided with a longitudinal hole or passage (9) which receives a puzzle barrel comprised by one or more rows of spring pin assemblies positioned radially with respect to two barrels (10) inserted in said passage (9), each of which has a cam configurating, eccentric and internal pin (11) which cooperates with the operating drive (4), said book (8) being retained within said mechanism by a drawer-like arrangement.

Abstract: The profiled cylinder (38) seated in an insertion opening (87) of the lock housing (7) is guided by a retaining bracket (93) and fixed centrally by a detent pin (121) on the retaining bracket (93). The detent pin (121) is guided displaceably on a slide piece (103) and initially stressed by a spring (131) towards the profiled cylinder (38). The profiled cylinder (38) contains a reading device for en electronic key, which device is connected through a plug-in connection (89) with an electronic circuit of the lock. The plug-in connection (89) and the detent pin (121) are so adapted to one another that the detent pin (121) firstly fixes the profiled cylinder (38) on the pedestal (93) before the slide piece (103) guided in centered manner in relation to the pedestal (93) closes the plug-in connection (89). In this way defects of alignment of the plug-in connection (89) and damage to its contact elements (107, 109 ) are avoided.

Abstract: A lock mechanism comprises a housing and a rotor mounted within a bore of the housing having a skirt, the rotor and skirt being rotatable by a knob. A lock opening and closing lever is rotatable between locking and unlocking positions and a rod is drivably connected to the lock opening and closing lever and serves for connection to a latching device.A securing and release lever drivably connected with the rotor through a drive tang and a slot permitting lost motion is movable by an actuator independently of the rotor.

Abstract: A modular door lock apparatus having a mainframe defined by a front face plate and an outer and inner side plate extending rearwardly of said front face plate a latch assembly being fixedly mounted to said front face plate, so as to be positioned between the side plates. A key cylinder is secured to the outer side plate and a latch knob is mounted to the inner side plate so as to operate the latch bolt of the latch assembly. The door lock apparatus is secured to the door by sliding the apparatus into a central bore and adjacent longitudinal slots that are formed in the leading edge of the door. The apparatus is then secured to the door by means of a pair of transversely positioned screws that are received through the oppositely disposed slots having their threaded ends extending outwardly of the outer side plate to engage the key cylinder. The screws may also be provided with nuts, which are fixedly positioned against the outer side plate.

Abstract: A mounting pad for a lock cylinder provides a plurality of bosses which protrude interior of a door stile, the bosses having inclined threaded bores which hold set screws, the set screws are accessed laterally through an access opening on the side wall of the stile, the set screws are progressed outwardly of the bosses to press against an inside wall of the stile, thus clamping the mounting pad to the door stile. The mounting pad holds a lock cylinder inside an annular lock collar by use of a lock ring. The lock cylinder communicates to mechanical means residing interior of the door stile to effectuate latching of the door with a key. The access opening for insertion of a tool such as an Allan wrench to progress the set screws is located on an interior side wall of the door stile such that when the door is completely assembled, the access opening is covered either by an interior door panel, or other door structures such as a panic exit device or panic bar.

Abstract: A low profile high security latch 22 is provided comprising inner and outer housing portions 28, 30 defining a common bore 32 in which a shaft 42 moves rotationally and transistionally responsive to an attached handle 40, the housing outer portion 30 is outwardly recessed to receive the handle 40 protectively in reduces profile.

Abstract: A retention plate assembly for fixedly retaining a lock in a door. The lock is adapted to be mountable onto the retention plate assembly. The door for mounting the retention plate assembly has a bore defining an edge from which extends a pair of slots opposite to each other. A pair of holes are disposed adjacent to the bore. The retention plate assembly comprises a retention plate and a pair of bolts. The retention plate has a pair of tangential tabs, a pair of radial tabs and a pair of threaded through-holes. When the retention plate assembly is mounted onto the bore of the door, the tangential tabs bear against the edge of said bore and the radial tabs fit snugly within the slots of the door. The pair of bolts each have a threaded end of reduced diameter with respect to the diameter of the bolt. The bolt also has another end manipulatable for releasably engaging its threaded end to the threaded through-hole of the retention plate.

Abstract: A re-keyable lock has a forwardly removable cylinder and plug assembly. The cylinder and plug assembly is removably secured to the lock by a setscrew. The setscrew can be removed with conventional and readily available tools. An alignment structure is provided to facilitate alignment of the cylinder and plug assembly with the lock.

Abstract: A self-assembling locking device including a shell unit with a longitudinal bore, a retaining rim at the front end, and a mounting hole at the rear end. The shell unit further includes means for securing it in a panel aperture which is larger than the shell unit and smaller than the rim. Also included is a plug unit for assembly into the longitudinal bore through the mounting hole. The locking device further includes retaining means for interlocking the plug and shell units and preventing withdrawal of the plug unit form the shell unit through the mounting hole. There is also included means for rotating the plug unit between first and second operative positions.

Abstract: A re-keyable lock has a forwardly removable cylinder and plug assembly. The cylinder and plug assembly is removably secured to the lock by a setscrew. The setscrew can be removed with conventional and readily available tools.

Abstract: The invention relates to a fixation fork for a cylinder lock plug, adapted for being placed underneath the plug head and to maintain it flat against a fixation panel. The fork is fast with a second fork cooperating with the end of the plug which is opposite the plug head, the assembly being provided with wings bearing on the fixation panel. Application to automobile vehicle door locks.

Abstract: A drawer assembly which prevents a drawer from "jamming up" in a locked position when the drawer is slammed shut while a locking arm associated with a key lock on the drawer is in a locking position. A projection on a retainer clip located on the inside of the front panel of the drawer keeps the locking arm from being bent, and also keeps the drawer from moving to the closed position from which a latching mechanism asociated with the drawer would be placed in a locked position.

Abstract: A security device for mounting in the alignment or positioning channel of video cassette which prevents utilization of the cassette in a VCR. The security device comprises a locking member having tabs which extend into openings of the alignment channel to retain the member therein after insertion into the channel. The locking member is removed by a key which is inserted into the bore of the locking member and has barbs at its lower end which engage the tabs of the locking member and retract them from within the openings to permit the locking member to be withdrawn from the cassette channel. The locking member also may secure the cassette within a container by passing through a hole in the wall of the container and then into the cassette channel aligned therewith.