Abstract: An overhead door interlock device provides an electrical signal indication of the locked or unlocked status of an overhead door, and interfaces with control circuitry of the door's opener to allow or disallow operation of the door based on the locked or unlocked status. In one embodiment, a lever is pivotably attached to the doors track, with the lever engaging with a switch mechanism to indicate the locked or unlocked status of the door. A spring mechanism automatically returns the lever to an unlocked position when the door's lock bar is retracted, with the lever mechanically inhibiting locking of the door until the lever is moved by a user.

Abstract: The invention belongs to the technical field of daily necessities, and particularly relates to an unlocking and locking method of a cabinet lock and a cabinet safety lock. During unlocking, a lock rod is displaced relative to a locking assembly to release the locking of the lock rod, and a first lock rod is rotated to an unlocked position. During locking, the first lock rod is rotated to a locked position and the locking assembly is engaged with the lock rod to lock the second lock rod. The method and the cabinet safety lock have a novel operating mode, have a firm structure, are convenient to use, and can effectively avoid unauthorized operation by children.

Abstract: The present invention generally relates to waste containers and, more particularly, relates to a safety locking device for waste containers. The locking device contains a base unit and a pivoting unit pivotally mounted to the base unit. The base unit contains a pinion member, having a cam thereon, non-movably attached to the base member. The pivoting unit includes a lock casing defining a cavity which houses a locking mechanism. The locking mechanism contains a locking member which is pivotally movable between a blocking position to prevent relative movement between the pivoting unit and the base unit, and a release position to permit the relative movement between the pivoting unit and the base unit.

Abstract: A payload perimeter protecting bumper and method of stopping an approaching vehicle from coming too close to a parked vehicle which includes a male receiver insert structure, which is configured to be inserted into and coupled to a hitch receiver on a truck, an intermediate portion disposed between male receiver insert structure and bumper member, which provides for the pivoting ability. The bumper member has an elongated pivotable structural member. The system is configured so that if you were to be trapped, you could unlock the pivot limiting pin and pivot upward the elongated pivotable structural member, thereby creating more space to move to exit the parking spot. In some embodiments, the elongated pivotable structural member could have a remote controlled linear actuator, with a length that could be automated.

Abstract: In various embodiments, the present disclosure provides an door locking assembly splice including an extension tube having opposing top and bottom ends, a lock rod connection assembly connected to the top end of the extension tube, a handle connection assembly connected to the extension tube between the top end and the bottom end of the extension tube, and a cam assembly connected to the bottom end of the extension tube, that enables a damaged door rod locking assembly to be easily, quickly, and efficiently repaired.

Abstract: A deployable storage system is provided for a truck. That deployable storage system includes a truck bed wall and a storage cabinet that is integrated into the truck bed wall. The storage cabinet is configured to be displaceable between a stowed position held within the truck bed wall and a deployed position extending above the truck bed wall.

Abstract: A shipping container includes walls, one or more doors, a locking device and a security device. At least one door is movable between an open position and a closed position. The locking device is configured to secure the at least one door in its closed positioned. The locking device defines an opening and includes a first fastener and a second fastener. At least one of the fasteners is attached to the door. The security device is insertable through the opening of the locking device. The security device includes a first wing substantially covering the first fastener and a second wing substantially covering the second fastener to substantially prevent access to the first fastener and the second fastener when the security device is inserted through the opening of the locking device. Other example shipping containers, security devices, etc. are also disclosed.

Abstract: A device and method for securing an orifice flowmeter and preventing unauthorized access to the flowmeter while in service is disclosed. The security device includes a housing having a top surface, a bottom surface, a closed end, an open end, a front surface, and a back surface forming a cavity. Through bores extend coaxially through the top surface and the bottom surface proximate the open end. Some embodiments include protrusions coupled to the interior of cavity. The protrusions together with the back surface of the housing are configured to surround exposed portions of the flowmeter, such that the addition of a shackle portion of a locking device through the through bores will prevent removal of the security device from the flowmeter and subsequently prevent access to the flowmeter.

Abstract: A blocking mechanism for preventing the opening of a tail gate on a vehicle having a hitch member, the blocking mechanism comprising a triangularly shaped frame having two horizontal members and two diagonal members, wherein each of the two diagonal members include an upper and lower end and each of the two horizontal members include a proximal and distal end; the lower ends of the two diagonal members are rotationally connected to a connecting bracket and the upper ends are attached to angled brackets, wherein the connecting member is attached to hitch member; the distal ends of the two horizontal members are attached to the angled brackets and the proximal ends are joined via a pair of connection elements; and a padlock is configured to lock the pair of connection elements.

Abstract: A locket comprises a connection pin, a lock bracket and a lock rod. A first end of the connection pin is fixed to a first connection. A notch is provided on a sidewall of a second end of the connection pin. The lock bracket is fixed to a second connection. The lock rod is rotatable within the lock bracket between an open position and a closed position. A groove is provided on a sidewall of a first end of the lock rod. The groove of the lock rod accommodates the second end of the connection pin passing through the second connection when the lock rod is open, such that the connection pin is moveable in an axial direction. The first end of the lock rod is accommodated within the notch of the connection pin when the lock rod is closed to prevent the connection pin from moving axially.

Abstract: A locking device for a container having a hinged lid, comprises a base unit adapted to be fixed to the container and a pivotable unit mounted to the base unit and pivotally movable between open and closed positions. The base unit includes a locking mechanism comprising a casing, a rotatable shaft, a blocking member fixed to the shaft and disposed in the casing, and a rolling member. The pivotable unit is mounted to the shaft of the base unit. The rolling member is provided to move within the casing between a blocking position wherein the rolling member blocks movement of the pivotable unit relative to the casing to prevent unauthorized opening of the lid, and a release position wherein the rolling member moves away from the blocking member to permit the movement of the blocking member relative to the casing thereby permitting opening of the lid.

Abstract: A vehicle body has, in a state in which a battery unit is not installed, a frame configuring a part of the lower surface of the vehicle body. A vehicle battery unit installation apparatus for installing a battery unit in the lower part of the vehicle body includes: a striker device configured to be secured to the vehicle body and a locking device secured to the battery unit. The striker device includes a base plate and a striker secured to the base plate. The striker has a support part capable of supporting a load. The locking device is capable of securing the support part. The base plate is configured to be secured to the frame. The striker has ends secured to the base plate such that the support part is located below the frame.

Abstract: A connector system is provided suitable for use in disconnecting a pair of pivotally connected panels in a multi-panel structure when the connector system is applied to the multi-panel structure. The connector system has a plurality of first connectors having first and second members, with the first member affixable to a first panel and the second member affixable to a second panel, the first and second members of the first connectors comprising at least two openings to permit passage therethrough of a pin that, when in place, permits relative pivotal movement of the first and second panels when the first and second members are connected to the first and second panels, where the first connectors may be easily detached upon actuation of an actuator by a user to remove the pin from the openings. The actuator may be manually and/or automatically operated.

Abstract: Anti-theft device for an inverter assembly including an inverter having a housing with a rear panel, a mounting plate to which the inverter is attached and a locking pin connected at one end to the mounting plate and extending through a hole in the rear panel of the inverter housing when the inverter is in a mounted position, wherein the locking pin includes an opening at the other end through which a U-lock can be inserted.

Abstract: Disclosed is an overhead door lock with a mounting plate which mounts to a door header and has a locking aperture therein; a barricade with a bracket which fastens to a top of an overhead door and a faceplate affixed thereto, the faceplate having an aperture and a flange extending generally perpendicularly to the faceplate, the flange having an aperture; and a coupling sized to pass through the faceplate aperture and having a first end which affixes into the mounting plate locking aperture and a second end with an aperture positioned such that when the first end of the coupling is inserted through the faceplate aperture and affixed into the mounting plate locking aperture, the coupling aperture and the faceplate flange aperture are coaligned for inserting a locking device which prevents the overhead sliding door from being opened, either from the outside or inside.

Abstract: An aircraft panel latch comprises an upper latch member comprising a rotatable lock member, a lock member movement means, and a lock position visual indicator. The lower latch member is mounted to a support structure. The lower latch and the upper latch members are pivotally connected. The lower latch member comprises a lock member retention structure. The visual indicator can comprise color coded indicia, where the alignment of a first color set indicates an unlocked position and the alignment of a second color set indicates a locked position. The visual indicator can comprise the physical location of the lock member movement means relative to the lock member. The visual indicator can comprise the physical location of the lock member movement means in combination with the colored indicia. The lock member retention structure can further comprise a ramp, a spring, or both a ramp and spring. The latch can be locked and unlocked using a hex tool.

Abstract: Embodiments of the invention provide enclosures for electronic components and methods for manufacturing the same. In one embodiment, the enclosure includes first and second sidewalls formed from a single elongated piece of sheet metal. The first sidewall, the second sidewall, a third sidewall, and a fourth sidewall define an interior space of the enclosure. At least one of the first and second sidewalls includes an edge region folded inwardly relative to the interior space to form a mounting channel. The enclosure further includes a backwall coupled with first edges of the sidewalls and a door hingedly coupled with a second edge of at least one of the sidewalls.

Abstract: A gate latch includes a bracket that has flanges with a plurality of holes for receiving fasteners that enable the bracket to be mounted to a bracket mounting surface. The bracket has a raised portion joined with the flanges and cooperates with the bracket mounting surface to define a space therebetween. The latch also includes a latch arm having an end portion thereof pivotally joined with the raised portion and capable of limited pivotal movement relative to the bracket. The latch arm is received in the space between the raised portion and the mounting surface when the bracket is secured to the mounting surface. The latch further includes a catch to be mounted to a catch mounting surface adjacent to the bracket and the latch arm. The catch includes a latch arm receiving region and a movable lock.

Abstract: A lock guard is provided for padlocks securing different type J-hook latches of roll up doors in their locking position. The lock guard shrouds the shackle of the padlock thereby deterring vandals use of cutting tools to sever the shackle.

Abstract: A gravity actuated locking device for a container having a hinged lid, comprises a base unit adapted to be fixed to the container and a pivoting unit pivotally mounted to the base unit. The pivoting unit includes a locking mechanism mounted therein for rotation about the base unit. In turn, the locking mechanism comprises a circular rolling member that translates from a blocking position preventing relative movement between the pivoting unit and the base unit to a release position permitting relative movement between the pivoting unit and the base unit.

Abstract: Snap hook assemblies in which additional components have been incorporated are detailed. The assemblies maintain the general shapes of carabiners rather than those of conventional versions of the incorporated components. Included among the incorporated components may be light sources, knife blades, compasses, can or bottle openers, and watches, for example, although other components may be incorporated instead.

Abstract: An aircraft panel latch comprises an upper latch member comprising a rotatable lock member, a lock member movement means, and a lock position visual indicator. The lower latch member is mounted to a support structure. The lower latch and the upper latch members are pivotally connected. The lower latch member comprises a lock member retention structure. The visual indicator can comprise color coded indicia, where the alignment of a first color set indicates an unlocked position and the alignment of a second color set indicates a locked position. The visual indicator can comprise the physical location of the lock member movement means relative to the lock member. The visual indicator can comprise the physical location of the lock member movement means in combination with the colored indicia. The lock member retention structure can further comprise a ramp, a spring, or both a ramp and spring. The latch can be locked and unlocked using a hex tool.

Abstract: A multiple padlock lock system for locking a first post to a second post has a common plate and connecting links. Padlocks connect the common plate and the connecting links around the first post lock the common plate to the first post. Connecting links or a tongue plate lock the common plate to the second post. At least two padlocks must be unlocked to remove the lock system.

Abstract: An improved door lock of a cargo container having a burglarproof function is disclosed. The door lock includes a handle hub, in which supporting pieces are integrally formed, welded to a locking rod, a rear supporting piece of the supporting pieces having a fastening hole, a front supporting piece of the supporting pieces integrated with an inward locking protrusion having a screw coupling groove, a handle including a connecting part and having a locking recess with a fastening hole such that the inward locking protrusion of the front supporting piece is inserted into and locked in the fastening hole due to pivot of the handle, and a bolt fastened into the screw coupling groove through the fastening hole of the rear supporting piece. Therefore, robbery is prevented and tamper-evident is easily checked during transfer of the cargo container so that measure against the tamper-evident can be easily taken.

Abstract: A gate locking assembly includes an anchor shaft that has rectilinear-shaped first and second sections orthogonally registered with each other. The first section travels horizontally along a linear plane and the second section is disposed vertically and travels adjacent to a vertical frame portion of an existing gate. A rectilinear tubular rod has an axial bore formed therein and a proximal end positioned about the first section of the anchor shaft. The rod has a distal end provided with a pair of apertures formed in an outer surface thereof, and lays contiguously against the gate. A bracket is coupled to the vertical frame portion of the gate and has a sleeve oriented along a longitudinal length of the vertical frame portion. A lock is attached to the rod and channeled through the passageway.

Abstract: A lock box assembly for enclosing and protecting a plastic security seal on the latch assembly of the door on a cargo container or trailer. The lock box includes first and second box members that together form an enclosure for the hasp assembly that holds the seal. Cooperating latch arm slots in the sides of the box members capture the latch arm, thereby securing the lock box to the latch assembly and preventing access to the seal. Aligned holes in the sides of the box members receive a lock pin. This configuration provides a lock box that is simple in design and easy to attach and remove using any conventional lock pin. The box is secured to the latch assembly by capturing the latch arm in the slots, eliminating the need for any structure to pass through the hasps, leaving the seal undisturbed.

Abstract: A latch in a door is protected from an unauthorized entry by forming a first bracket that fits around the latch, and a second bracket that is rotatably connected to the first latch. The second bracket covers the latch when rotated to be in a first position, and exposes the latch when rotated to be in a second position.

Abstract: A lock guard is provided which is particularly well suited to protect a padlock employed to secure a stanchion lever securing one or more doors of a cargo container, trailer truck or moving van. The lock guard includes an interior locking tab with a vertical opening through which a hinged leg of a padlock shackle extends when the unhinged leg of the shackle is passed through an opening in a component of the stanchion door and the shackle is closed by abutting it against an abutment on the underside of the roof of the guard. The lock guard, which provides a protective housing or shield for the shackle of the padlock when the padlock is in its installed locking position, is particularly compact thereby minimizing access of cutting tools to the padlock shackle.

Abstract: A protective cover for cargo seals. The cover has two parts with intermating elements on the two parts, and a pair of apertures that can be aligned in the two parts. When the apertures are aligned a padlock hasp can be passed through the aligned apertures.

Abstract: A plurality of separately keyed padlocks, ranging in number from 7 to 150 or more, are securely held within a circular assembly that is rotated for selection of a specific padlock. This assembly of locks can be placed at a level for easy reach from a car window. Visible imprinted numbers provide a quick way for authorized members of a group to locate the padlock which a specific key will open. When opened and the padlock is turned opposite a slotted bar, moving the bar actuates a separately installed automatic gate-opener for access to an area. Alternatively, the system can be adapted for use manually by authorized personnel to lock or unlock a gate, door, or secured equipment. No padlock can be removed from the assembly except for periodic changing of a lock when an individual leaves the group and thus is no longer permitted to enter the closed area.

Abstract: An enclosure assembly for enclosing a tamper-evident security seal sealing a hasp assembly comprises a first enclosure portion and a second enclosure portion. A post is coupled to the first enclosure portion for extending through the generally aligned holes of the hasp members of the hasp assembly to secure the hasp members together and position the first enclosure portion behind the security seal. The second enclosure portion includes an aperture formed therein for receiving the post so that the second enclosure member engages the first enclosure portion and covers the security seal. In this manner, the first enclosure portion and the second enclosure portion cooperate to at least substantially enclose the security seal. A latching member secures the second enclosure portion to the first enclosure to limit unauthorized access to the security seal.

Abstract: A door latching device is disclosed that is mountable to conventional doors, including cargo container doors and garage doors, for preventing opening thereof. A conventional keyed lock, such as a padlock or puck-shaped protected shackle lock, couples with the latching device to lock the latching device in a latched position with a door. The latching device includes a rigid housing having an attachment bolt affixed thereto for securing the latching device to the door, a slidable locking pin having an opening for receiving a locking pin ingress/egress. In a locked position, the locking pin protrudes from the housing, and the lock is coupled with the locking pin to prevent movement of the same. In an unlocked position, the lock is uncoupled from the locking pin to permit sliding of the locking pin. The housing provides limited access to the lock once the lock is coupled with the locking pin.

Abstract: The specification discloses a locking device for a cargo-container closure of the type comprising a pair of doors hingedly mounted to a body of the cargo-container, each door having associated therewith in spaced-apart relation at least one upright lockrod the lockrods being adapted for securement to the body in a closed condition of the doors, and in which closed condition of the doors the lockrods are laterally spaced-apart a finite distance. The locking device comprises a pair of separate arms, each arm having a principal length extending between first and second ends, the first end of each arm defining a stop adapted to confront one of the lockrods, and the second ends of the arms being adapted for secure interconnection in end-to-end abutting relation.

Abstract: A hasp and lock cover for installation on a camming handle of a cargo door of cargo carrying vehicles and shipping containers to substantially cover existing top and bottom hasp elements and the shackle of a lock device installed through the hasp elements. The cover is a unitary rigid box-like device having a contiguous front wall, laterally opposed side walls, a top end wall, an open back side, and an open bottom end defining an interior. Axially aligned apertures through each laterally opposed side wall are sized and shaped to slidably receive the camming handle of the cargo door. A recess in the top end wall is sized and shaped to allow pivotal movement therethrough of the top hasp element into and out of the cover interior. The open bottom end allows the lock device to be manually inserted upwardly therethrough into the interior and manipulated to secure the shackle through aligned apertures in the top and bottom hasp elements.

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 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 latching apparatus to facilitate the latching, positioning, securing, disengagement and travel of a door, window, gate or similar structure. In one exemplary embodiment of the invention, a first connecting member is attached to a first attachment structure and a latching member is pivotally attached to a second connecting member and a second attachment structure. Insertion of securing mechanisms into strategically positioned securing apertures prohibits disengagement and travel of a structure secured by the improved latching apparatus. Removal of either one of two said securing mechanisms from either side of a previously secured structure facilitates disengagement and travel of said previously secured structure.

Abstract: Housing apparatus for protecting a padlock includes plate elements securable to a door with an aperture in the back of the housing for receiving a fixed hasp plate secured either to a second door or to a door frame. The housing includes a slot in a back plate for receiving the hasp plate and an open bottom for receiving a padlock. A front plate includes an aperture through which a key may be extended into a front opening padlock.

Abstract: Rotatable door lock with an integrated security feature is used in a housing having a lockable door panel. The housing has an opening therein. The lockable door panel includes a lock cylinder having a passage extending substantially radially therethrough. The lockable door panel further includes a door panel of sufficient size to cover the opening, the door panel having a door panel opening therein for receiving the lock cylinder, and at least one door panel recess in an outside of the door panel and leading to the door panel opening such that, when the lock cylinder is turned to a locking position relative to the door panel, the passageway is accessible through the at least one door panel recess. When the door panel is moved to a closed position to cover the opening, the lock cylinder in the door panel is received in the opening and is turnable to the locking position to lock the lockable door panel to the housing.

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 lock for railway car sliding doors of the plug type that secures the center bottom edge of the door against unintentional outward movement caused by accidental impact from within the car. The lock is secured to the rail car surface adjacent the bottom edge of the door and is pivoted into door engagement on the center bottom of the door.

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 latch assembly (40) for the top of a pivotal endgate of a dump body includes a pivotal locking lug (48) actuated by a handle (52) which can be positively secured in a closed position. A second embodiment (60) is also disclosed.

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 protector device for hardware latch members used in conventional containers and trailers to secure in place the pivoting locking bar members. The device includes a housing having a substantially rectangular cross-section defined by side walls, a top wall and a bottom wall. Hingedly mounted tabs extending outwardly from the inner edge of the side walls are foldable within the housing and secured on the hardware latch members of the door being protected. The distal ends of the latch members include openings though which a conventional protective seal member is passed. Upper and lower concave members join the walls' outer edges and they are separated defining aperture inbetween. In front of the aperture a convex wall is mounted to the outer edges of the side walls and cutouts on the upper and lower walls permit a protective seal member through. The latch members are completely covered and protected.

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 plurality of walls form a housing cavity in which a latch hasp is received. An opening in the housing receives therethrough the latch hasp, the latch enclosing the cavity. The bolt seal has a shank with a head at one end or with a U-shaped bight in a second embodiment. The head engages a housing wall and a locking body engages and locks to the shank at a shank end distal the head. The shank between the head and lock body is fully enclosed by the housing and latch to preclude access to the shank by tampering tools. In a second embodiment, the shank bight engages the received hasp of a latch. The shank distal the bight is locked to the housing by a locking body. The latch depends into and encloses the housing cavity open at the top. The shank between the bight and the locking body is fully enclosed in the cavity. Different housings are disclosed wherein the head may be enclosed or exposed for access by a shank breaking tool. A reusable bolt and locking body is disclosed for use with several embodiments.

Abstract: A reversible gate and door latch having a striker bar attached to a grip handle and a rear handle. The gate and door latch is locked in a closed position behind a pronged keeper by immobilizing a security plate that slides vertically in relation to the pivoting action of the striker bar. The security plate is held in place by the striker bar, which passes through it, and slides vertically through a upper and lower horizontal stirrup. The slidable security plate is immobilized by placing a padlock or security pin in a security plate aperture. A striker handle is attached to the striker bar in a parallel fashion to allow for facile griping and pivoting of the striker bar by the user. A rear handle secured to the opposite side of the gate or door allows for operation of the latch from opposite the locking side.

Abstract: A lock guard (10) for use with a padlock (200) and a conventional tractor trailer door latch system (100). The lock guard (10) comprises a main housing unit (11) dimensioned to cover the door latch system (100) and including an exterior auxiliary housing unit (13) provided with a cut-out (61) dimensioned to receive a padlock (200) and an interior center piece unit (13) having an aperture (42) dimensioned to receive a portion of the padlock for captively engaging portions of the trailer door latch system.