Abstract: A double lock T-handle is disclosed having a tray which includes an inwardly dished handle receiving area, a second recessed handle receiving region, and a recessed padlock receiving depression. The tray further includes a lock cylinder casing having a locking cylinder and a shaft cylinder casing having a shaft. The lock cylinder functions as a first lock and a padlock functions as a second lock for the double lock T-handle. The T-handle includes a locking shoulder and a fracturable throat section which deters forced breakage of the T-handle and undesirable opening of a locked door.

Abstract: A freezer door handle and lock assembly comprises a pull handle having a mounting end formed with a slot that is adapted to be mounted to a freezer door. A deadbolt is mounted in the pull handle mounting end for reciprocal movement along a path of travel between deadbolt locking and unlocking positions. A manual push bar extends from the deadbolt to the exterior of the handle mounting end through the mounting end slot. Means are provided for locking the deadbolt in its locking position. A strike is also provided for receiving the deadbolt.

Abstract: A bolt seal protector includes a V-shape or trapezoidal shape set of side and front walls. A set of transverse walls are attached to the side walls in the interior space defined by the side and front walls and include bolt shank receiving apertures. The transverse walls are attached to the side walls by projections. Top and bottom walls may be provided to enhance security. Flanges may be attached to the side walls. The flanges may extend inwardly or outwardly relative to the interior space at the top and bottom side wall edges. The transverse walls are recessed for receiving the bracket of a hasp of a keeper bar assembly which hasp is received between the transverse walls. Slots are provided in the side walls to receive a keeper bar handle and to provide clearance for hasp bracket fasteners and the like. Different thickness walls and flange shapes are provided for a given security need. Different embodiments are disclosed including a tool for use with certain of the embodiments.

Abstract: A locking system is disclosed for use with a cargo container. The locking system comprises a housing which is adapted to be mounted to a door of the cargo storing container. Three rods extend from the housing with the rods having a locked position extending beyond the periphery of the door and an unlocked position not extending beyond the periphery of the door. A handle extends from the housing. The handle rotatably engages a cam plate contained within the housing. The cam plate is operatively engaged with the three rods whereby rotation of the handle rotates the cam plate which moves the rods from one position to the other. A locking tab extends forwardly from the cam plate into a recess in the housing. The locking tab is engaged by a circular lock while the recess prevents movement of the engaged circular lock.

Abstract: A heavy duty steering wheel securing anti-theft device. Embodiments are described herein that also protect any air bag contained in the steering wheel.

Abstract: A heavy duty steering wheel securing anti-theft device. Embodiments are described herein that also protect any air bag contained in the steering wheel.

Abstract: A heavy duty steering wheel securing anti-theft device. Embodiments are described herein that also protect any air bag contained in the steering wheel.

Abstract: A heavy duty steering wheel securing anti-theft device. Embodiments are described herein that also protect any air bag contained in the steering wheel.

Abstract: A heavy duty steering wheel securing anti-theft device. Embodiments are described herein that also protect any air bag contained in the steering wheel.

Abstract: A latch cover is secured over a latch to be protected by the lock which locks the latch, and the latch cover restricts access to the latch to reduce the chance of tampering with the latch. The latch cover includes a cover plate sized to cover a substantial portion of the latch and lock when held in a position in front of the latch. Holding plates extend from the cover plate over the sides of the latch where a lock member of a lock locking the latch extend. Such lock member extends from the opposite sides of the latch and through holes in the holding plates to secure the cover in place. Side plates preferably extend between the holding plates to form a box structure to more fully cover the latch. Notches in the side plates receive items extending into or from the latch and help position the cover. The cover allows access to the lock so the lock and latch can be opened when desired and the cover removed.

Abstract: An apparatus comprising modified cabinet doorknobs, a lock shaft and a pressure activated lock for mating with the connecting shaft. The lock shaft fits through the holes in the doorknobs. The lock comprises a housing, spring loaded window or pin, and a spring. When a user presses down on the lock the pin or window would move allowing passage of the lock shaft through the lock. When released, the pin or window would engage the holes, grooves or flanges of the shaft locking the shaft and preventing removal of the shaft from the lock.

Abstract: A latching assembly that requires three distinct operations must be performed with two hands to allow the handle of the latch assembly to be rotated to unlock a cabinet door or the like. The assembly provides substantial flexibilities in installation. A base portion is secured to a door and receives a handle portion with a shaft attached, the shaft extending through the sleeve. Cooperative rotation restriction portions on the handle and on the base portion restrict the motion of the handle to a limited rotation range. Said limited rotation range may be altered by moving a key guide in one of the cooperative rotation restriction portions. A first release mechanism comprising a trigger portion which extends from the handle and a detent which engages a detent opening in the base portion requires depression of the trigger portion before rotation of the handle to an unlatched position. The detent mechanism is within the handle and a cap contained and encloses in the detent mechanism.

Abstract: The disclosure relates to a swivel lever actuator which can be secured by a padlock for the closure of switch cabinet doors or the like, with a dish which is arranged on the outer surface of the door or the like and in which is arranged the lock shaft, wherein an actuating lever is articulated at the free end of the lock shaft as to be swivelable out of the dish about an axis extending transverse to the shaft axis, and with a projection carried by the actuating lever, wherein an eyelet is arranged at the free end of the projection in such a way that when the lever is swiveled into the dish a padlock inserted through the eyelet prevents the actuating lever from swiveling out. The projection is mounted at the actuating lever so as to be displaceable, rotatable and/or swivelable in such a way that it can move relative to a second projection securely fastened to the actuating lever such that the two eyelets are aligned with one another and a padlock can be inserted through the eyelets.

Abstract: The disclosure relates to a swivel lever actuator which can be secured by a padlock for the closure of switch cabinet doors or the like, with a dish which is arranged on the outer surface of the door leaf or the like and in which is arranged the lock shaft, wherein an actuating lever is articulated at the free end of the lock shaft as to be swivelable out of the dish about an axis extending transverse to the shaft axis, and with a projection supported by the dish, wherein an eyelet is arranged at the free end of the projection in such a way that when the lever is swiveled into the dish the projection and a padlock inserted through the eyelet prevents the actuating lever from swiveling out. The actuating lever, forms an offset surface in the area of the opening, which offset opening receives the shackle inserted through the eyelet.

Abstract: A valve security guard is provided for a storage tank having a valve for dispensing material from the tank and includes a cover with a closed end and an interior with an open end for enclosing a valve handle, and a shaft member that extends through apertures in the cover that is lockable in a fixed position located behind the valve handle to secure the cover thereon.

Abstract: A locking apparatus which is suitable for use with a manually operated control. The control is of a type which has a body and a handle. The handle is rotatable relative to the body and which is restricted to rotate between a first position defined by a first pair of abutment surfaces touching one another. In such a condition, a second pair of abutment surfaces are spaced apart to define a first gap between them. Rotation to a second limiting position is defined by the second pair of abutment surfaces touching one another and the first pair of abutment surfaces being spaced apart to define a second gap. The locking apparatus includes a first member which is attachable to the handle and a second member which is attached to the first member. The second member fits for use into either one of the first or second gap and provides further abutment surfaces each disposed to abut a respective adjacent abutment surface on the body of the control thereby to restrict rotation of the handle relative to the body.

Abstract: A latching assembly that requires three distinct operations must be performed with two hands to allow the handle of the latch assembly to be rotated to unlock a door from a door frame. The assembly provides substantial flexibilities in installation. A base portion having a sleeve which defines an aperture is secured to a door and receives a handle portion with a shaft attached, the shaft extending through the aperture in the sleeve. Cooperative rotation restriction portions on the handle and on the base portion restrict the rotation of the handle to a limited range. The limited rotation range may be altered by selectively positioning a key guide in one of the cooperative rotation restriction portions. A first release mechanism comprising a trigger portion which extends from the handle and a detent which engages a detent opening in the base portion requires depression of the trigger portion before rotation of the handle to an unlatched position.

Abstract: A locking mechanism used to provide heightened security for storage containers. The locking mechanism uses a padlock to lock the doors, but unlike past inventions the padlock has only limited exposure to the outside of the storage container. This prevents thieves or vandals from being able to pry or break the lock open. Further, the essential components of the locking mechanism are all housed in a protective frame which prohibits tampering with the individual components of the door lock mechanism.

Abstract: A security bracket for use with a door latch mechanism of the type having a pivoting handle actuator disposed on the exterior of the door. The bracket is sandwiched between the door latch mechanism and the door and includes an opening through which the operating mechanism of the latch can extend through an opening in the door. The bracket includes a pair of tabs extending away from the door, each with an opening. A padlock shackle extends through the tab openings to overlie the door latch and prevent its operation.

Abstract: A locomotive locket device for disabling the forward/reverse control system of a locomotive or other powered railway vehicle has an axially-expandable plug portion which may be inserted into a keyhole chamber in a locomotive controller. The plug portion comprises upper and lower tubular truncated cylinders having complementary angled faces. When drawn together, the cylinders offset axially from one another, expanding their combined axial diameter. The device may be locked in a closed position.

Abstract: A steel plate hasp is permanently fixedly attached to a door keeper bar, the bar for rotating about its longitudinal axis between door closed and open states. A casing has a plurality of walls forming a housing cavity in which the hasp is received through an opening in a housing wall with bolt seal shank apertures aligned in the hasp and housing. The casing may be permanently secured to the door by bolts or welds or may be selectively attached and removed from the hasp in a locked and unlocked state without fixed attachment to the door. A bolt seal has a shank with a head at one end wherein the head engages a housing wall and a locking body engages and locks to the shank other end and to a further housing wall. The shank between the head and lock body is fully enclosed by the housing and door to preclude access to the shank by tampering tools. The casing when secured to the hasp cooperates with the door to prevent the keeper bar from rotating open.

Abstract: A security locking and reinforcement device to be used with doors, such as residential door and roll-up doors of the type that includes a plurality of horizontal slots defined by adjacent joined horizontal members, wherein the door is mounted within a substantially rectangular opening in a wall, and comprising a supporting plate assembly having a hanging plate removably mounted to the wall adjacent to the door; an elongated plate assembly hingedly mounted to the supporting plate assembly and having inner and outer surfaces. A security locking and reinforcement device also includes an assembly for locking the elongated plate assembly to the supporting plate assembly when the former is brought against the latter, and further including an assembly, such as a threaded rod, to engage the commonly found slots in commercial roll-up doors so that the door is kept locked in place which simultaneously enhancing its structural integrity of the roll-up door.

Abstract: A locking apparatus is provided for locking the rear doors of a trailer that has door closing members that include left and right vertical bars on the doors and horizontal clasps that attach respectively to the bars. The apparatus includes a pair of structural blocks that are attached to the doors using bolting or welding for example. A hollow spanning member is transversely positioned to span between the blocks, the spanner member having a central open-ended bore that communicates with preferably both end portions of the bar. Each of the blocks has a receptacle that slidably receives an end portion of the bar. One of the blocks has a vertical channel that extends through the block between its upper and lower surfaces and which communicates with the receptacle. This enables a locking member to be positioned in the channel and form a connection with the bar at the intersection of the receptacle and the channel.

Abstract: A steering wheel lock including a lock body, a U-shaped shackle bar mounted on the lock body for securing to the lock body to the rim of the steering wheel to be locked, a hook bar integral with the lock body for hooking on the rim of the steering wheel, and a polygonal stop bar fixed to the lock body for stopping at a fixed location inside the motor vehicle, the polygonal stop bar having square drive ends at both ends for use as L-shaped wrench means for turning bolts and nuts by means of sockets.

Abstract: A locking device for a valve having a rotatable shaft including a stop plate, and a stop secured to a housing, including a hollow body having a first chamber for receiving the shaft, a threaded aperture extending into the first chamber for receiving a screw, a second chamber surrounding the screw, a lockable closure preventing access to the screw, and a tab coupled to the hollow body adapted to be received between the stop plate and the stop.

Abstract: Paddle handle locks for securing push-pull, paddle-style door latches. In a first preferred embodiment the paddle handle lock is characterized by a handle lock having a frame with parallel side plates separated by spacers and fitted with a clamp arm pivotally attached to one of the spacers. Registering frame pilot holes and clamp arm pilot holes facilitate locking the clamp within the frame, such that the respective spacers prevent movement of the paddle door handle upon which the handle lock device is mounted. The padlock can be removed to allow pivotal extension of the clamp arm and manipulation of the door handle or removal of the handle lock from the door handle, to render the door latch operable. In another preferred embodiment a lockset handle lock is provided which includes a cylinder lock mounted in a lock housing and fitted with a pivoting clamp arm, one end of which clamp arm extends into the lock housing and engages a conventional cylinder bolt on the lock cylinder.

Abstract: An anti-theft device is provided for use with semi-trailers of the type which have a Dolly-Leg, a Dolly-Leg crank, and a Dolly-Leg crank handle. The anti-theft device includes a housing, a locking bar, and a lock. The housing has a top, an end panel, a first side, a second side, and a notched bottom, with the first side and the second side each having formed therein a first side aperture and a second side aperture respectively. The notched bottom has downwardly depending therefrom at least two lock chain guide harnesses. The locking bar has formed therein at one end thereof a locking bar aperture. The locking bar extends through both the first side and the second side of the housing, such that the locking bar passes through both the first side aperture as well as the second side aperture. The lock is secured to the locking bar by attachment thereto through the locking bar aperture. The device also preferably includes a chain, with the chain also being secured to the locking bar.

Abstract: The invention is a cam locking rod devices for securing doors on intermodal cargo containers, semi-trailers, utility trailers, trucks, and other similar cargo storage compartments. The lock rod device is used in conjunction with a rotatable cam lock rod, having cam locks on each end, mounted on a container door for securing the container door in a locked condition. A locking cylinder, through which the cam lock rod extends, has at least one locking projection thereon which interacts with at least one projection on a sliding latch, which when intermeshed prevents rotation of the cam lock rod. A pad lock is used in conjunction with the sliding latch to lock projections on the locking cylinder and slide latch in a meshed position which prevents rotation of the cam lock rod.

Abstract: An improved spring-loaded latching and locking mechanism for a rotatable control of the type having a stem journaled in a body and rotatable about an axis in a boss on the body. The stem has a protuberance for engagement with the handle. The handle comprises a boss-engaging end portion, a stem-engaging portion, a slider-riding portion, and a grip end portion. The slider-riding portion has a slider with a tang extending therefrom. Each side of the slider-riding portion also includes a pair of springs mounted on a rail cutout so that the springs provide resistance against movement of the slider. The slider-riding portion includes an aperture for securing a lock to arrest movement of the slider. The boss has surfaces located to correspond to predetermined positions of the stem. These surfaces are engageable by the tang which, when so engaged, restrains the handle from rotation and prevents removal of the handle from the stem.

Abstract: A removably securable locking device especially suitable for use with the loading door of a railroad freight car whereby the rotatable door handle which latches the door in a closed position is secured against unauthorized movement by a two-piece locking device wherein a handle securing portion of an insertion piece encircles a part of the door handle, and then telescopes into a receiving piece which engages a portion of the door gear box such that upon securing the two pieces of the locking device in telescoped engagement, the door handle is locked against movement until the two pieces are moved out from each other a distance sufficient to release the door handle from engagement.

Abstract: A locking handle for an access door includes a housing with a cam rotatably mounted within the housing. The cam is connected to a locking pin for the pin to move transversely in response to rotational movement of the cam. A locking bar is slidably received on the housing and moved to a locked position to prevent rotation of the cam.

Abstract: A latch handle (20) includes a grip portion (22) and a housing portion (24) with a spindle (28) extending therefrom to actuate a latch. The handle (20) rotates about an escutcheon (26) and is configured for receiving two or more padlocks. The handle grip portion (22) includes a padlock receiving portion (32) while the escutcheon (26) has a raised portion (34) aligning with the lock receiving portion (32). The escutcheon (26) takes on a second embodiment (126) for rotation in an opposite direction. A defeater device (30) includes a retainer (40) coupled to a plunger member (50). The plunger member (50) slides axially within a bore (70) and rotates relative to an insert (60). The insert includes a cammed surface (62) which receives tabs (52) of the plunger member (50). The plunger member (50) is biased by compression spring (48) and torsion spring (56) to urge the tabs (52) against the cammed surface (62) so that the plunger member (50) moves axially as the retainer (40) is rotated.

Abstract: A steering wheel restraint for providing a vehicle theft deterrent has interfitting steel cover members adapted for placement over the steering wheel to disable the steering function. An externally mounted removable locking device is housed within a protector ring that is mounted to one of the cover members. A marginal flange of the cover members is coincidental to a peripheral rim of the steering wheel and provides a protective shield to prevent cutting of the rim. A rotation restrictor flap concealable behind the cover member is extendible for contact with an interior surface of the vehicle to thereby block rotation of the cover members. A stabilizer tab is concurrently projectible into the path of movement of a spoke of the wheel to prevent wheel rotation independently of the cover members. The components can be readily disassembled and the rotation restrictor flap and stabilizer tab can be displaced to a compact space-saving inactive position for storage.

Abstract: A water faucet rotation prevention device that prevents injury to children and the like by preventing the inadvertent and unwanted rotation and opening of bathtub water faucet valves. The water faucet rotation prevention device includes an upper portion, a lower portion, pivoting apparatus, and maintaining apparatus. The upper portion removably receives a part of a pair of spaced apart water faucets. The lower portion is pivotally mounted to the upper portion and removably receives a remaining part of the pair of spaced apart water faucets. When the water faucet rotation prevention device is in the open position the pair of spaced apart water faucets are accessible for rotation and when the water faucet rotation prevention device is in the closed position the pair of spaced apart water faucets are unaccessible for rotation. The pivoting apparatus pivotally mounts the upper portion to the lower portion.

Abstract: A guard shield is provided as a protective security device in the cockpit of an aircraft to prevent instruments in the aircraft control panel from being removed by thieves. The guard shield is formed of a flat, laterally expansive, rigid plate with a pair of parallel slots defined in its lower edge. The slots extend upwardly into the interior of the plate and terminate in blind ends. The slots are laterally spaced from each other a distance equal to the distance of the separation of the steering columns for the steering yokes utilized by the pilot and copilot. The guard shield is mounted so as to rest upon the steering columns with the steering columns residing at the upper extremities of the slots in the blind ends thereof. A locking mechanism is employed to hold the guard shield closely adjacent to the surface of the instrument control panel, so as to prevent the removal of instruments therefrom.

Abstract: A motorcycle throttle clamp comprised of a pair of rectangular blocks having a semi-circular indentation on outer surfaces thereof. The semi-circular indentations are adapted to engage a round tubular handlebar of a motorcycle. The pair of rectangular blocks have a locking component. The locking component receives a motorcycle throttle therein to prevent the throttle from being operated.

Abstract: A disabling device is designed for a steering wheel of a motor vehicle, which consists of an elongated rod. Components which utilize conventional padlocks are provided for locking the elongated rod onto the steering wheel, to prevent a would-be thief from turning the steering wheel when attempting to steal the motor vehicle. Three embodiments of the instant invention foil a thief because they are just to large and bulky to permit the steering wheel to be operated when locked in place, while an alternative fourth embodiment provides security by actually disabling both the steering wheel and brake pedal simultaneously.

Abstract: A plate pivotally mounted to a padlock hasp adjacent a reciprocally movable operator handle is pivotable from a stored position to one covering the opening of the hasp, the plate having a hole aligned with the opening and smaller than the opening to receive the shackle of a single, scissors-type safety lockout and maintain the shackle in position to block movement of the operator handle to an operated position. The hole is preferably rectangular to conform to the flat, thin shape of the safety lockout shackle to maintain the shackle properly oriented. An additional round hole for a smaller diameter padlock shackle may be provided in said plate.

Abstract: A door curtain assembly (10) for temporarily closing the door opening of a loading dock doorway for a warehouse, or similar industrial building, including a framework (20) mounted within the door jamb of the doorway. A door curtain (42) is movably mounted to the framework (20) and is formed from a durable, porous material that enables light and air to readily pass therethrough, but which retards the passage of insects, etc. through the open door of a warehouse. The door curtain (42) is slidably mounted on a curtain rod (66) and is movable across the width of the door opening to open and close the door opening. A locking handle (96) is provided along one side edge (49) of the door curtain (42) for locking the door curtain (42) in its closed position for enclosing the door opening.

Abstract: A debris cap is provided with a locking post that is insertable into an opening in the closure of the cap so that a lock engaging the manipulating handle of the cap and the locking post prevents unauthorized removal of the cap.

Abstract: A security device for use with rotatable door knobs which incorporates a pair of generally cylindrical members positioned on a door knob and telescoped together to receive a padlock to prevent separation. The housing members rotate relative to each other and to the door knob to prevent actuation of the door knob and access to any keyed lock that may be incorporated in the knob.

Abstract: A valve lock has a body and a moveable jaw for releasably gripping a lever handle of the valve against the body. The jaw has a threaded shaft that extends through a hole in the body, and a locking cleat is slidable on the threaded shaft. An arm is attached to the shaft between the body and the locking cleat, and is rotatable about the shaft to abut either the valve or a pipe connected to the valve. A hand wheel is threaded onto the shaft and can be tightened against the locking cleat which then forces the arm against the body to inhibit rotation of the arm about the shaft. The locking cleat has an aperture for receiving the shackle of a padlock, and the hand wheel has a plurality of notches in an exterior surface with one of the notches receiving the shackle to restrict movement of the wheel along the shaft.

Abstract: A valve handle latching assembly having a selectable latching slider which engages a detent on a fluid control device such as a ball valve. During assembly, a particular slider is selected for inclusion in the final assembly resulting in a valve tailored for its intended purpose. Depending upon which latching slider is selected, the valve handle latching assembly latches in the open and/or closed position(s) thereby preventing inadvertent rotation. The latching handle assembly may be manually disengaged to permit rotation of the handle in the opposite rotational direction.

Abstract: A lock comprised of a cylindrical body having a first passage extending axially through the body which passage is configured to enable a locking bar to be passed through the body, the bar having at least one orifice intermediate its extremities, the lock body having a second partial passageway extending from the side wall of the body at least into the first passageway and normal to the latter so that the orifice in the bar can be disposed in register with the second passageway. A cylindrical lock configured to fit slidably in the second passageway so that at least a portion of the lock may be thrust in the second passageway and through the bar orifice when the latter is disposed in register with the second passageway, when the lock may be secured by a key to be withdrawn from the outer end of the lock. This lock and bar may employed with external plates to secure adjacent members from movement relative to each other.

Abstract: A retaining mechanism for a dispensing valve operated by a pivotal handle comprised of a retainer and a hook, the retainer having a base, a catch member and a latch member fastened to the base of the retainer, the catch member and latch member being arranged for movement relative to the base. The hook is threadably fastened to the retainer. A lock secures the catch member and latch member together.

Abstract: A gate valve locking arrangement in which a steel bracket is clamped on a portion of the truss extending upwardly from the valve bonnet and supporting the gate valve spindle and wheel, the bracket having a rigid bar extending upwardly and capped by a L-shaped member seating against the inside of the wheel. The bracket may be secured in a fixed portion relative to the wheel by a cylindrical lock having a recess into which the vertical portion of the L-shaped member is inserted and locked, or by a padlock in certain applications.

Abstract: A handle assembly for operating a valve of the type having a valve body and a pivotally mounted actuating spindle extending from the valve body has a mounting means to secure the assembly to the spindle, a handle portion connected to the mounting means and a pivotally mounted locking member. The locking member is pivotable, either by camming surfaces on the handle portion and the locking member or by a key, between a first, locked position in which it engages with a portion of the valve body, and a second, unlocked position in which it is free from the valve body and enables the valve spindle to be rotated by the handle portion.The locking member is provided with a number of apertures which can be aligned with corresponding apertures in the mounting means and the handle portion when the locking member is in its locked position. The apertures are shaped to receive tamper-sensitive tape or wire or the shackle of a padlock, to indicate or prevent unauthorized use of the valve.

Abstract: A lock device locks a steering wheel in an automobile and has a retaining plate unit which includes an elongated plate body that covers two diametrically opposed portions of a rim of the steering wheel, a first pawl member fixed on the plate body and a second pawl member spaced from the first pawl member and mounted pivotally on the plate body. A blocking rod is mounted movably on the plate body. A locking mechanism includes a key plug unit and a locking rod member which locks the blocking rod releasably on the plate body in combination with the second pawl member so as to extend a portion of the blocking rod from an end portion of the plate body.

Abstract: A motorcycle infrared rays lock for a motorcycle include a housing, an infrared rays receiving unit and a movable block contained in the housing and an infrared rays emitting unit. The infrared rays emitting unit is deposited in a separated case to be inserted in a front opening of the housing for turning on the emitter to emit a preset data signal to a sensor to actuate a receiving IC for examining the signal and turning on a transistor to actuate an electro-magnetic switch to retract a movable block. The movable block has a tooth end engaging a rack in an end portion of a hook rod locking a free end of a chain wound around a portion of a motorcycle wheel so that the chain can be taken off the hook rod and then off the wheel.

Abstract: A tamper-resistant security lock assembly for use on lockrods of cargo container doors to prevent unauthorized opening of the doors. The lock assembly includes a pair of adjustably telescopically interengaged hasps with hook configurations on opposite ends adapted to connect with the lockrods in spanning relationship to a door opening and prevent opening of the door. A plurality of openings are formed through the hasps in positions to be in registry with one another when the hasps are appropriately adjusted relative to one another, for receiving a staple and padlock to lock the hasps against relative movement. According to one feature of the invention, the openings in one hasp are spaced differently than the openings in the other hasp, whereby smaller increments of adjustment can be obtained than if the openings were all spaced the same.