Abstract: A door assembly includes a door base, a door disposed pivotally on the door base for covering openably the door base, and a locking mechanism. The locking mechanism includes a first body biased to move relative to the door base in a first direction, a first engaging portion disposed at the first body, a pushing portion disposed at the first body, a second body disposed at the door, and a second engaging portion disposed at the second body. A lock is operable to move the first body relative to the door base in a second direction opposite to the first direction. The first engaging portion is biased to move in the first direction to thereby engage the second engaging portion, so as to lock the door at a locked position for covering the door base.

Abstract: An apparatus and method for enhancing the security of a cluster box unit which includes a protective enclosure, internal cabinetry, door, hinge and locking system. The cluster box unit may also include outgoing mail compartment doors that are heavily constructed and rigidly reinforced, with the locks carried thereon protectively shielded, and with the extensible bolts of these locks being engaged by brackets that not only lock the outgoing mail compartment doors but also the master loading doors of the cluster box units. The cluster box unit may also include master loading doors are provided with hinges that extend the full height of the doors—hinges that are defined by pivotally interfitting elements of extrusions that very sturdily mount the master loading doors, that prevent prying or bending the doors in the vicinities of their hinges.

Abstract: A latch and latch handle recessed into the computer cover is provided, with the latch handle preferably presently a cam surface internally that interacts with a compatible cam surface associated with a lock bar. Preferably, a key lock is functionally integrated with the latch in such a way that when the key lock is unlocked the latch handle and latch are free to displace and to then urge the retention bar to disengage detents or hooks from slots or receptacles, by way of releasing the cover from a chassis or body of the desktop or workstation. Accordingly, in essentially one efficient movement via engaging the latch handle, a user will be able to quickly remove the cover.

Abstract: A low cost locking device for securing special forms in paper trays when a printer is unattended that can be easily be field installed without screws or other fasteners or tools includes a bracket tray lock, a tray lock plate assembly and a padlock that cooperate to prevent the paper trays from being removed from the printer without a key for the padlock.

Abstract: A draft shield for a balance, the draft shield having a rear wall and rails extending forward from the top corners of the rear wall. The rails contain guide tracks for a top cover panel and two sidewalls. A draft shield of this design allows for easy cleaning and also permits the parts to be cleaned to be removed without a tool. To this end, a bottom edge of a front wall of the draft shield is inserted into a seat, such that the front wall can then be pivoted into flush alignment against the top cover panel and the sidewalls and can be secured in this position by locking elements arranged at the front ends of the rails.

Abstract: An improved electrical panel design provides a modular, power-reliable, buss-lockout and true emergency-stop capabilities. Through the use of an interface, the approach eliminates numerous outdated, if not antiquated, parts, including safety locks, mechanical disconnect switches, E-stop safety relays, and safety Programmable controllers. The modular panel design saves interior panel space, permitting the use of single-door access, in some cases. Panel doors cannot be opened with live electricity without some form of electronic authorization, and a record of access is stored for future reference. Power may not then be reactivated with the doors opened, thereby virtually eliminating disconnect related accidents. Automatic shut down further occurs with a plant network emergency, ground-fault interruption, or panel door violation.

Abstract: A linkage assembly includes a frame, an arm movement coordinating member slidably supported by the frame, and a pair of arms pivotally connected to the frame and connected to the coordinating member to ensure that the arms pivot in unison when the coordinating member is slided relative to the frame by depressing a push button that is connected to the frame for translation relative thereto. Either of the arms can be link-connected to a latch assembly for operating either a single latch assembly or for concurrently operating a pair of latch assemblies in response to depression of the push button. An optional emergency release cable may connect with the arm movement coordinating member to facilitate latch operation from inside a tonneau cover of a pickup truck or the like that is held closed by the latch or latches.

Abstract: A tamper resistant lock assembly is disclosed which is configured to prevent keyless operation of the lock assembly. The tamper resistant lock assembly includes a lock housing having a bolt slidably supported therein and a strike. The lock housing is secured to a mounting plate which is adapted to be fastened to a movable member such as a door. The strike is adapted to be fastened to a support member such as a door jam at a position to facilitate engagement between the bolt and the strike when the movable member is in a closed position. The strike includes a C-shaped catch member defining a recess having an opening which is configured to receive an engagement portion of the strike when the movable member is in the closed position. The engagement portion of the strike is also C-shaped and defines a recess.

Abstract: A cabinet lock controlled by a press-button lock is disclosed to include an upright track affixed to the back side of the cabinet, a sliding locking bar vertically movably mounted in the upright track and adapted to hook the drawers in the cabinet, a linkage coupled between the top end of the upright track and the top end of the sliding locking bar and driven by the lock cylinder of the press-button lock through a push bar to move the sliding locking bar, and a spring member adapted to push the sliding locking bar upwards from the locking position to the unlocking position.

Abstract: A locking system for toolboxes, industrial cabinets and the like includes a push button operator assembly connected by at least one movable link to at least one latch mechanism configured to latchingly engage an associated striker to releasably retain a first structure (such as a closure) on which the striker is mounted in a closed position relative to a second structure (such as a cabinet) on which the locking system is mounted. The push button operator assembly has a button that, when unlocked, can be depressed to move the associated link to unlatch the latch mechanism from the striker, and that, when locked, is inoperable when depressed to move the link.

Abstract: A locking apparatus of a game machine has the following components: a locking bar provided with a plurality of first engaging portions; engaging members having second engaging portions engageable with the first engaging portions; and a locking bar actuating member for actuating the locking bar from an engaging position where the first engaging portions engage with the second engaging portions to a disengaged position where the first engaging portions are out of engagement with the second engaging portions. A locking device performs, in accordance with operation of a key, a change-over between an unlocked state which permits the actuation of the locking bar into a disengaged position by the locking bar actuating member and a locked state which prohibits the actuation of the locking bar into the disengaged position by the locking bar actuating member.

Abstract: An improved anchor assembly for a multiple drawer locking system having a "C" shaped lock bar with an access slot, the anchor assembly including an anchor having an anchor element for slidably mounting in the lock bar and a mounting device; a multi-faceted locking pin for engaging the mounting device and an indexing plate between the anchor element and the pin and including at least one anti-rotational element extending through the slot into the lock bar to prevent the anchor element from rotating and aligning with the slot; the indexing plate may also include a first indexing device and the locking pin may include a second indexing device for constraining the pin to lock with one of the facets in a predetermined position; the indexing plate may also include at least one gripping edge for gripping the lock bar to prevent sliding of the assembly.

Abstract: A security locking system includes a plurality of compartments each having a door giving access thereto and a lock for locking each such door; a console for controlling operation of the locks to permit access to the compartments, wherein the console includes a circuit for accepting a plurality of selected multiple digit codes, each of which codes electronically opens an individual lock associated with that particular selected code; and an additional circuit associated with each lock for allowing all of the locks to be connected by common wiring to the console.

Abstract: A self-locking lock assembly for a cabinet or locker door includes a rotary operating member (25) having a head (26) adapted to be operated from the exterior of the door, and an inner bolt (31) provided with a rib (36) inclined with respect to the axis of said operating member so that its cooperation with a flange (14) of a door opening (3) causes it to rotate while compressing a return spring (41) whenever the door is manually pushed. The lock assembly can advantageously be used in cabinets or lockers the doors of which must be opened only by safety personnel, but may be closed by maintenance personnel.

Abstract: A cedar chest lock remains unlocked unless positive actuation of a strike engaging member is effected. The lock includes a strike member projecting from the chest lid for cooperation with a locking latch plate retained in a housing mounted in the side wall of the chest. The housing thus has an opening for receipt of the strike member. A latch plate is pivotally mounted in the housing and is spring biased to a position which avoids engagement with the strike member upon insertion of the strike member through the housing opening. A push button in the housing may be actuated to engage and position the latch plate for cooperation with the strike member. Actuating the push button and subsequent positioning of the strike member through the opening in the latch housing permits the latch plate to engage the strike member thereby locking the chest lid in a closed position. The push button may include a key operated lock.