Abstract: A lock system is provided for vehicles and the like of the type having at least one closure. A lock housing is mounted adjacent the closure, and includes a lock barrel with an axial tumbler groove, a positioner shoulder adjacent an outer portion of the barrel and a keeper shoulder adjacent an inner portion of the barrel. A lock plug is closely received in the barrel for rotation between locked and unlocked positions, and includes a keyway and outwardly biased, radially shifting tumblers. A control key is inserted into the keyway to retract all of the tumblers except a positioner tumbler that engages the positioner shoulder to locate the lock plug in a first axial position in the barrel. When the control key is removed, an outer keeper tumbler is biased outwardly for abutting contact with the keeper shoulder. A dealer key is inserted into the keyway to retract all of the tumblers except the positioner and outer keeper tumblers to permit rotation of the plug between the locked and unlocked positions.

Abstract: The invention relates to an actuating device for a lock, especially a lock on the parcel shelf of a motor vehicle, comprising an actuating element (30) and a transmission element (20) which can be moved in a linear manner (20) and on which a catch device (21) is disposed, whereby the movement thereof impinges upon a trigger element (12) which interacts with an actuating rod assembly. The transmission element (20) is embodied as an axially displaceable shaft (20) which can be rotated by means of a central locking device (11) and is provided with an eccentrically arranged extension (22). One area of the actuating element (30) can be rotated by means of a locking cylinder (31) and is provided with an eccentrically arranged extension (32). The front faces (23, 32) of the extensions (22, 32) face each other and overlap in at least one rotational position but not in all relative rotational positions of the extensions (22, 32).

Abstract: A shielded pushbutton lock that includes housing that supports a lock cylinder connected to a key operated pushbutton. The pushbutton is shielded by way of a rotatable collar that extends over the pushbutton and shields the pushbutton, so that a thief may not defeat the pushbutton lock mechanism by attempting to rotate the pushbutton in order to allow operation of the latch mechanism.

Abstract: A push-lock includes a body. The body is formed with a channel having a pair of portions. A cylinder is movable in the body between a front position and a rear position, and has a latch rotatably connected thereto. The latch defines two opposed cutouts in a periphery thereof. A clip has a pair of shanks resiliently flexible in the portions of the channel. The shanks normally abut the periphery of the latch. A spring is provided for moving the cylinder back to the front position. Additionally, the latch can be turned relative to the cylinder in such a manner that the shanks snapped in the cutout may be pushed outward by the turning latch till the shanks fully slide out of the cutouts and abut the periphery of the latch again.

Abstract: A lock mechanism includes a lock housing having an upper surface with a pair of opposing L-shaped ears, a lower surface with a pair of opposing L-shaped ears, and a front surface with an orifice therethrough. A lock plug cylinder has a face with a key slot therethrough, the lock plug cylinder received within the lock housing through the orifice in the front face. A mounting bracket has a front face with an orifice, a pair of laterally disposed flanges projecting from the front face, and a pair of retaining flanges projecting substantially perpendicularly from the front face. The lock housing is received between the retaining flanges in such a way as to have the retaining flanges received by respective upper and lower opposing ears.

Abstract: A push-lock includes a body. The body is formed with a channel having a pair of portions. A cylinder is movable in the body between a front position and a rear position, and has a latch rotatably connected thereto. The latch defines two opposed cutouts in a periphery thereof. A clip has a pair of shanks resiliently flexible in the portions of the channel. The shanks normally abut the periphery of the latch. A spring is provided for moving the cylinder back to the front position. Additionally, the latch can be turned relative to the cylinder in such a manner that the shanks snapped in the cutout may be pushed outward by the turning latch till the shanks filly slide out of the cutouts and abut the periphery of the latch again.

Abstract: A shielded pushbutton lock that includes housing that supports a lock cylinder connected to a key operated pushbutton. The pushbutton is shielded by way of a rotatable collar that extends over the pushbutton and shields the pushbutton, so that a thief may not defeat the pushbutton lock mechanism by attempting to rotate the pushbutton in order to allow operation of the latch mechanism.

Abstract: A push lock assembly having a housing with mounting elements for mounting the push lock to a mounting surface, a pawl carried on the housing, an actuating knob, a cam member and a lock plug which is carried in the actuating knob and associated with the cam member for rotation thereof, the mounting elements facilitating mounting of the push lock from single side of a panel.

Abstract: The present invention is directed to a lock construction for securing to a trailer socket and thereby preventing attachment of the trailer socket to a connecting member of an unauthorized towing vehicle. The lock construction comprising a base with a first upstanding member extending from the base and adapted to engage the trailer socket of the trailer. A second upstanding member is disposed on the base in spaced relation to the first upstanding member. A shaft like member is positioned in the housing and is slidable toward the first upstanding member from an unlocked position where the third member is spaced away from the first upstanding member to a locked position wherein the third member engages the trailer socket once it is attached to the first upstanding member. A locking mechanism is operative connected to the third member and to allow slidable movement of the third member.

Abstract: A push-button steering wheel lock for attachment to an automobile steering wheel is provided having a housing and a push-button assembly disposed in the housing. The assembly is positioned in either a locked position for securing the steering wheel lock to the steering wheel or an unlocked position. In the locked position, the push-button lock assembly engages a rod slideably disposed in the housing to prevent movement of the rod with respect to the housing. The push-button assembly also includes two levers, one each on either side of the assembly to engage two surfaces within the housing to retain the push-button assembly in the locked position and also to retain the push-button assembly in the housing.

Abstract: A lock and a method for manufacturing the lock. The lock comprises a shell having an interior cavity, a plug received in the interior cavity rotatably and axially slidably therein and defining a keyway configured to receive a preselected key, and a tumbler insertable in the plug. The tumbler has a plug portion disposed at a first axial location within the plug and resiliently biased outwardly toward a locked radial position and associated with the keyway such that the preselected key inserted in the keyway locates the tumbler in an unlock position and a shell portion disposed at a second axial location in the shell wherein the second axial location is axially spaced from the first axial location. The shell, the plug and the tumblers are configured such that the tumblers are sheared between the plug and the shell when the plug and the shell are forced axially toward each other.

Abstract: A convertible cylinder lock handle comprises a hub, a handle extending from the hub, and a drive shaft extending from the hub along an axis of handle rotation. The hub has a channel sized to receive a lock cylinder and a slot that extends along and spacially communicates with the channel sized to receive a spring loaded lock cylinder bolt. The lock handle also has a bolt lock plate sized to be received in reversible orientations within the slot that has two stops spaced apart a distance to receive and entrap the cylinder bolt therebetween. One of the stops has a ramp for camming engagement with the spring loaded cylinder bolt whereby in one lock plate orientation the bolt is locked out of the lock plate and in its reversed orientation the lock plate receives and entraps the bolt. The handle is particularly suited for use on delivery van type vehicles as it is fully compatible with existing lock cylinders that may be removed with spanner tools without having to disassemble the handle.

Abstract: Combination cylinder that can be extracted from the outside for a latch, characterized in that support (4) of cylinder (3) has a radial catch piece (6) that can be retracted relative to a radial slot (7) of the internal wall of the static body (5) attached to the door, and there is a transverse lift-bar (8), a counter-spring push-button (9) and one each first (10) and second (11) openings attached in permanent axial alignment with said push-button (9); said lift-bar (8) has a first arm (8a) joined in an articulating manner with said retractable catch piece (6), a second arm (8b) with one end that can interfere with the rotary path of radial projection (13) present in cylinder (3).

Abstract: A convertible lock structure includes a main body including a lock core received therein and a latch rod extending from an end thereof. The main body includes a transverse hole defined therein for receiving an end of a spring-biased control latch. A casing receives the main body and includes an end wall through which the latch rod extends. The casing further includes at least two positioning holes one of which is selected to receive the second end of the control latch. A second end of the control latch is operable by a proper key so as to move between a retracted position inside the main body which allows the main body to move in the casing and an extended position beyond the transverse hole to retain the main body in position.

Abstract: The invention provides a lock assembly suitable for securing a swing door hinged to a refrigerated cabinet and is intended to dissuade pilfering. The lock assembly includes a strike plate having a mounting plate for mounting to the cabinet, and a locking plate spaced from the mounting plate. The lock assembly further includes a door bracket having an outer door plate to be located on an outer surface of the swing door, and a locking member mounted to the door bracket. The locking member has a locking shaft connected to the locking member for rotation with the locking member. The locking member is locatable between the mounting plate and locking plate of the strike plate and against the locking plate to lock the swing door to the cabinet in a first angular position of the locking shaft, and released from the locking plate to unlock the swing door in a second angular position of the locking shaft.

Abstract: A quick-release locking device for locking an article basket on a bicycle handle bar, including a fastener body and a main body. The fastener body is a double-layer plate body formed with insertion slots and a fixing slot for engaging with the main body. One end of the main body is disposed with latch arms for engaging with the fastener body and a resilient engaging section for engaging with a slope engaging block of a push button. Lower edges of two sides of the other end of the main body are respectively disposed with clamping passages in which the bicycle handle bar is clamped and fixed. The locking device serves to lock the article basket on the bicycle with a quick-release function, whereby the basket or bag can be directly taken out from the bicycle for shopping or preventing the article placed in the article basket from being stolen.

Abstract: The present invention relates to an improved shift lever lock structure of a car, wherein, a lock core and an upper and a lower bead seat are placed in from the front end of the housing of the lever lock, the lock core is extended through a through hole on the wall of the housing, then a C shaped ring and a moving sheet set for the lock are mounted on and secured, a movable side pin is transversely provided on the upper bead seat, it can be pushed to open the lock when a key is inserted, the lock core is very difficult to be destroyed from the front end thereof, thus an additional safety is provided.

Abstract: A motor vehicle steering column lock includes a drove rod element extending axially along a bore within the housing of the steering column lock for actuating a steering column locking bolt member in accordance with known steering column lock mechanisms. The drive rod element of the steering column lock is provided with a radial projection that cooperates with a radial wall of an enlarged recess of the bore extending through the lock housing for preventing axial withdrawal of the drive rod element from the housing and also includes an axial locking projection that is spring biased into a locking recess for preventing relative rotation between the drive rod element and the housing when the steering column lock is transported or stored without a lock cylinder installed in the housing.

Abstract: A holding device for padlocks having lock housings of different sizes. The holding device includes guides for positioning the padlocks so that a shell-plug assembly disposed within the lock housing is maintained at a prescribed location. The holding device is attached to a shearing apparatus for shearing assembly pins in the shell-plug assembly.

Abstract: A combined lock/actuator for providing linear actuation including a lock barrel having an opening extending along a longitudinal axis, a spline in the opening extending along the longitudinal axis, a plug mounted in the opening, and a key-retractable tumbler carried by the plug and extending into the spline. The plug is rotatable within the opening over a fixed annular displacement between an actuation position and a release position. Further, the plug is translatable within the opening over a fixed axial displacement along the longitudinal axis between a first position and a second position. The tumbler extends into the spline when the plug is in the actuation position in the first position, when the plug is in the actuation position in the second position, and when the plug is in the actuation position in translating between the first and second positions.

Abstract: A key cylinder device in which, in a locked state, a lock-releasing mechanism is provided so as not to operate even if a cylinder case swings. When a first lever rotates in a counterclockwise direction with respect to the cylinder case, a shaft provided on a second lever extends from a side surface of the second lever and engages with a third lever to move a rod attached to the third lever in a lock-releasing direction. Further, when the first lever does not move relatively with respect to the cylinder case, even if the cylinder case swings, the shaft does not extend from the side surface of the second lever and does not engage with the third lever. For this reason, there is no possibility that the rod attached to the third lever move in the lock-releasing direction.

Abstract: A gear shift lever including lever body, a knob mounted on a top end of the lever body, a control rod mounted in the lever body, a button mounted in a recessed chamber of the knob and depressed to force down the control rod for permitting the lever body to be shifted, and a button lock unit controlled to lock the button, wherein the button lock unit includes a stop member mounted inside the recessed chamber and having a forwardly extended projecting rod inserted into a longitudinal groove of the button, a spring connected between the stop member and the button to impart an outward pressure to the button, and a lock mounted in the button and turned with the key to move a stop rod in and out of the longitudinal groove of the button, the stop rod being stopped against the projecting rod of the stop member to lock the button when it is moved into the longitudinal groove of the button, the stop rod being disengaged from the projecting rod of the stop member to unlock the button when it is moved out of the longitud

Abstract: A turnable lock operable with driver and tumbler pins when positioned by a key at a shear line in which shearable assembly pins are assembled in the lock and thereafter sheared to form such driver and tumbler pins for operation thereon. Each assembly pin is selectively weakened at a plurality of locations which correspond with notched depth heights of the family of keys capable of insertion in the keyhole. Such weakening is controlled so that pin shearing can be accomplished by application of rotational or linear forces applied to any part of the lock except the key. When linear forces are used the tumbler or plug may be indexed to employ a driver pin as a plug lock.

Abstract: A motor vehicle door lock or the like comprises a locking mechanism for securing and releasing the door, operated by a lock which is disengageable from the locking mechanism. The disengageable lock comprises a stator, a tubular intermediate sleeve, a rotor operable by a key, and a control lever for actuating the locking mechanism. The control lever is coupled to the rotor through a driving sleeve. The lock also includes an indexer which is moveable axially between a rest, or engaged, position and a disengaged position when the intermediate sleeve is rotated during actuation of the rotor by an incorrect key. This axial movement of the indexer displaces the driving member axially to a position in which the driving member is prevented from rotating. The indexer is fixed in rotation to the intermediate sleeve, and is also free to rotate with respect to the stator when in the disengaged position.

Abstract: A pushbutton console latch is provided. The latch includes a cylindrical housing for housing a pushbutton therein. The pushbutton incorporates a lost motion feature such that when a pushbutton is in the locked position and depressed, the bolt of the latch remains extended. However, when the pushbutton is rotated to an unlocked position, a pushbutton may be depressed thereby retracting the bolt.

Abstract: A padlock includes a lock unit housed in one end of a tubular housing, and a shackle provided with a notch in one or both feet for the lock unit to fit and keep immovable the shackle feet in the housing in locking. In addition, locking dimensions of the lock unit with the shackle is made substantially larger than conventional ones to prevent the padlock from being illegally broken.

Abstract: A key-operated cylinder lock including a cylinder lock housing, a cylinder lock core assembly rotatably located within the housing, and an outwardly biased, radially movable lock bolt. The cylinder lock housing includes a cylindrical side wall encircling an axial cavity for receipt of the cylinder lock core assembly and a pair of opposed axially extending arcuate lugs extending inwardly from the cylindrical side wall into the axial cavity. The cylinder lock core assembly includes a core insert retaining several hardened key guides and biased tumblers. The core insert rotates within the cylinder lock housing to transfer force between a key inserted into a key entryway and an eccentric stud riding within a cam cavity defined within the lock bolt to effect radial movement of the lock bolt in conjunction with rotational movement of the key.

Abstract: A turnable lock operable with driver and tumbler pins when positioned by a key at a shear line in which shearable assembly pins are assembled in the lock and thereafter sheared to form such driver and tumbler pins for operation thereon. Each assembly pin is selectively weakened at a plurality of locations which correspond with notched depth heights of the family of keys capable of insertion in the keyhole. Such weakening is controlled so that pin shearing can be accomplished by application of rotational or linear forces applied to any part of the lock except the key. When linear forces are used the tumbler or plug may be indexed to employ a driver pin as a plug lock.

Abstract: The cylinder lock according to the present invention comprises a latch 19 movably disposed between the joint position connecting the key cylinder 16 and a driver 18 and the release position disengaging the key cylinder 16 and a driver 18; and a clutch 20 for transferring the latch 19 to the release position when a sleeve 13 rotates relatively to a housing 11 with an improper key. When a proper key is inserted into the key cylinder 16, it can be rotated without rotation of the sleeve 13 so that the driver 18 can be rotated to the locked or unlocked position through the latch 19 which drivingly connects the key cylinder 16 and the driver 18. When an improper key is inserted into the key cylinder 16 and rotated, the sleeve 13 is rotated with the key cylinder 16 through tumblers 17 so that radial movement of the clutch 20 disengages the latch 19 and driver 18, thereby preventing unauthorized unlocking of the cylinder lock 10 without rotation of the driver 18.

Abstract: A lock mechanism having an engaging member, a sliding member, a fixed member, and a lock rod assembly received within an elongate lock rod housing is provided. The engaging member includes a planar head having a groove formed therein adapted to receive a protuberance extending axially from one end of the lock core. The engaging member also includes a shank portion extending axially from the head through which is formed a bore adapted to receive therein a spring member. The sliding member has an oval shaped axial through opening and a cam surface defined by an undulating annulus having depressed segments and protruding segments. The fixed member also includes an axial through opening and a cam surface defined by depressed segments and protruding segments. The two cam surfaces form a camming interface, whereby the shank of the engaging member is axially advanced and retracted into and out of locking engagement with the lock rod assembly by rotating the sliding member.

Abstract: A motorcycle disk brake lock comprises a main body, a locking member, a firs stopping member, a second stopping member, and a third stopping member. The main body is composed of a slot, a receiving space, and a through hole located between the slot and the receiving space in which the locking member is disposed. The locking member is provided with a press portion and a locating rod capable of moving along with the press portion. The first stopping member is located on the locking member. The second stopping portion is located on the inner edge of the receiving space such that the second stopping portion is capable making contact with the first stopping portion so as to prevent the locking member from being driven to move outwards. The third stopping portion is located on the inner edge of the receiving space such that the third stopping portion is parallel to the second stopping portion and is also able to prevent the locking member from being driven to move outwards.

Abstract: An improved push-button locking device has an outer sleeve in which an inner sleeve is received. The inner sleeve is used to receive therein a locking rod, a front ring seat, a rear ring seat, and a plurality of front and rear retaining tenons and urging springs. The outer sleeve is provided in the wall thereof with a bar hole. A locating pin is fastened to the wall of the inner sleeve such that the locating pin extends into the bar hole for enabling the inner sleeve to move axially within the bar hole. A retrieving spring is located between the inner sleeve and the outer sleeve for enabling the inner sleeve to remain outwards in the absence of an external force. The locking rod is provided with an extra portion capable of extending outwards through the axial hole of the outer sleeve. The axial hole is provided in the wall thereof with a recess in which a compression spring and an urging pin are disposed.

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 cylinder lock is disclosed having significant resistance to damage or tampering. The cylinder lock comprises a cam provided on the key cylinder; and a pair of pins disposed radially slidably in openings provided in the sleeve rotatably disposed within a casing. The pins are moved within the openings of the sleeve by the cam on the key cylinder which is rotatably positioned within the sleeve when the key cylinder is turned by a proper key independently of the sleeve to a predetermined angle, as tumblers provided within the key cylinder are disengaged from the sleeve. Then, the pin comes into engagement with and is rotated with the connector together to unlock the lock device.

Abstract: A cylinder lock is disclosed having significant resistance to damage or tampering. The cylinder lock comprises an axial cam provided on the key cylinder; a rotator which may be engaged with the sleeve and be in contact with the axial cam of the key cylinder; a stopper positioned adjacent to the rotator and having a pair of lugs engageable with a recess of the casing; and an axial spring positioned between the stopper and a connector for resiliently urging the stopper toward the rotator. The rotator and stopper are axially moved by the axial cam of the key cylinder to release engagement of the rotator with the sleeve and also to release engagement of the stopper with the casing when the key cylinder is rotated independently of the sleeve by a correct key, thereby the rotator comes into engagement with the connector. By further rotating the key cylinder, the rotator, stopper and connector are rotated as a unit to a locked or unlocked position.

Abstract: A cylinder lock for use in motor vehicles and elsewhere has a case for a rotatable and axially movable sleeve-like guide which receives a rotatable cylinder having a keyhole and being locked to the guide by tumblers when the key is withdrawn. A detent is installed between the case and the guide to normally prevent rotation of the guide except when the guide is acted upon by a large force which causes it to deactivate the detent as a result of certain axial movement of the guide and cylinder in the case. A clutch between the cylinder and a motion transmitting element for a bolt of the lock is engaged as long as the detent is operative but is disengaged not later than when the detent permits the guide to turn in the case.

Abstract: A lock housing for an automobile steering lock device has a heat-treated, very hard protective cylinder between a cylindrical wall of the housing and the lock. The lock has a rod-shaped dead bolt extending in a same-shaped hollow space in the housing to extend into one of the grooves in an elongate rod member to immovably lock the rod member in an elongate tubular member in any one of a plurality of positions.

Abstract: A tamper resistant pop-handle lock is disposed in the door of a vending machine or similar closure, and is used to restrict operation of a spring-biased handle which is seated in a recessed housing and is adapted for manually latching and unlatching the door. The lock has a cylindrical barrel and a rotatable key plug mounted within an opening in the barrel. An axially extending eccentric lug at the inner end of the plug is received in a recess formed on a retractable locking bolt, such that rotation of the plug relative to the barrel causes the locking bolt to move through a second opening in the barrel. A locking surface on the lug-receiving recess engages the eccentric lug when the key plug is in a locked position to prevent radial movement of the bolt and extension of the handle.

Abstract: A lock device includes a hollow cylindrical rod body with two retaining holes. The rod body has a closed end and an open end. A key plug assembly includes a tubular outer housing fixed in the open end of the rod body, and a push rod extending through the outer housing and movable in the outer housing between an unlocking position, where a portion of the push rod extends from the outer end of the outer housing, and a locking position, where the push rod extends from the inner end of the outer housing. In the rod body, a resilient element pushes a locking plate assembly toward the key plug assembly. When the push rod is pushed inward and is locked in the locking position in the outer housing, the resilient element is compressed between the locking plate assembly and the end wall of the rod body so that two notched lock bars extend through the retaining holes and the small-sized portions of the locking holes in the locking plate assembly, thereby preventing removal of the lock bars from the rod body.

Abstract: This invention relates to a steering wheel lock and in particular to one including a square tubular member having a seat formed with a groove and a hole in the inner side, a movable cylinder slidably inserted into the square tubular member and having a plurality of holes, a rod member slidably inserted into the movable cylinder and a having a plurality of annular grooves, and a lock core composed of a central block, a rotatable member, an engaging pin, a fixing pin and a spring, whereby the lock may be easily assembled and contracted in two stages when not in use.

Abstract: An apparatus to prevent the insertion of the prongs of an electric cord plug into an electric outlet, where at least one of the prongs has a hole through it, includes a casing having ports for receiving the prongs of the plug, a latch within the casing for sliding through the prong hole, a lock connected to the latch such that the lock controls the operation of the latch, and a key for operating the lock. At least one channel may optionally be provided in the casing into which the portion of the cord extending from the locked plug can be laterally fitted.

Abstract: In an anti-theft hand brake arrangement for a motor vehicle having a ratchet release mechanism operable by a push button, exposed at the end of a handbrake lever, the push-button incorporates a cylinder lock. In the locked condition, the push-button may still be depressed, but without acting on the ratchet release mechanism, while in the unlocked condition an abutment member at the inner end of the push-button is so positioned as to engage a release member of the ratchet release mechanism when the push-button is depressed, thereby to release the brake ratchet.

Abstract: A cylinder lock includes a tubular housing in which a fixed hollow cylinder and a rotatable hollow cylinder are coaxially mounted. Several axial bores are formed in an end surface of the fixed hollow cylinder. The rotatable hollow cylinder also has several axial bores formed therethrough. Several tumbler units are received in the bores of the cylinders. Each of the tumbler units consists of a first tumbler pin, a second tumbler pin and a tumbler spring. A locking bar extends through the cylinders. A guide pin is mounted securely on the rotatable hollow cylinder and received slidably in the axially extending slide slot of the locking bar so as to enable synchronous rotation and relative sliding movement of the rotatable hollow cylinder and the locking bar. The engagement of the guide pin in the slide slot retains the locking bar on the lock. A resilient element biases the actuated end of the locking bar to extend from the housing. A spring-loaded retaining element is disposed on the fixed hollow cylinder.

Abstract: A code lock includes an intermediate bead seat, upper and lower bead seats, all of which are provided with tumbler bead holes receiving tumbler beads. The upper and lower bead seats are slidable relative to the intermediate bead seat between a normal position in which the bead holes of the upper and lower bead seats are aligned with first bead holes of the intermediate bead seat and a resetting position in which the bead holes thereof are aligned with second bead holes of the intermediate bead seat. The combination of the tumbler beads can be changed by using a code key which selectively transfers some tumbler beads from the first to the second bead holes.

Abstract: An inside operator for a lock having a spring biased bolt includes a shaft which can be immobilized, thus preventing longitudinal bolt motion, by applying force in the axial direction to the handle of the operator. The operator shaft is telescopic to ensure that the coupling of the operator shaft to the bolt is not interrupted as the operator is switched between operational modes.

Abstract: A hatch latch with a peripheral top surface adapted to fit through an opening in a hatch has a rotatable axial shaft with a latch member toward its lower end, the shaft being partially enclosed in an outer housing and having a central cavity at its upper end surrounded by a groove in the peripheral top surface which makes the hatch latch waterproof by draining water to the periphery by one or more channels leading to an edge of the peripheral top surface. The cavity is adapted to contain a locking device for locking a hatch that needs to be both latched and locked or a plug to fill the top of the cavity when the hatch requires only latching. A bail, D-ring or the like is used to raise and lower the shaft between secured and latched positions and, to rotate the shaft between latched and unlatched positions.

Abstract: A pin lock device which can be permanently attached to the frame of a sliding curtain shutter type door. The pin lock device has a rigid body with a bore which may be attached to the frame of the shutter type door. A bolt located in the bore is movable between first and second positions in the bore, but cannot be completely withdrawn. The bolt can be immobilized in the locked position in the rigid body, thereby allowing the sliding shutter door to be locked, and is restrained from being fully withdrawn in the unlocked position to allow the bolt to be safe from loss or tampering when the sliding shutter door is opened.

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 steering wheel lock protector has a two-piece housing which wraps around the ignition-steering wheel lock in the steering column of a modern automobile. The automobile lock is completely enclosed except that access is provided through a rotatable key-slotted disc to the ignition-steering wheel lock. The two-piece housing is engaged and disengaged from its steering wheel housing wraparound position by means of two axially aligned lock pins which are lock-actuated to engage in lock pin bosses.

Abstract: A lockable handle assembly includes a handle supported on a backplate, with a lock body retained in a slideway in the head of the handle. The lock body has a protruding first pin which engages within the back plate in a locking position, and a second pin which travels along a second recess. A biasing spring is retained against the second pin.