A door latch activator system for a trailer or truck body coupled to a door latch, including: a plunger installed in a path of the door latch; a switch configurable into one of an open or closed position by the plunger; and a pneumatic valve configured to control flow of pressurized air through the pneumatic valve depending on the position of the switch, wherein the plunger is moved toward or away from the roller switch by the door latch operating in the path, which activates the pneumatic valve to control the pressurized air flowing through the pneumatic valve.

The automated door-locking device comprises a keypad, a locking bar, and a locking bar catch. The locking bar is of a spring-loaded type. In an embodiment, the automated door-locking device is mounted on a classroom door. The locking bar catch is mounted on the classroom door and the keypad is fastened to the wall of the classroom. The classroom door is allowed to open and close normally when no intruder is on premises. The automated door-locking device is engaged by entering a code using the keypad and setting to Lock Mode. The locking bar is automatically rotated to securely engage with the locking bar catch. The automated door-locking device cannot be breached without breaking down the wall or the door. After the threat is over, the user resets the automated door-locking device to the Safe Mode using the same code. The locking bar releases from the locking bar catch.

A gate fastener is provided for securing a double gate, comprising a pivotable body that is fixable to a first gate, wherein the pivotable body comprises at least one recess for receiving a gate rail on the second gate; wherein the pivotable body comprises at least one aperture on a side thereof that is capable of retaining a locking pin; and wherein in a first position, the locking pin spans the recess and prevents movement of the gate rail out of the recess, and wherein in a second position, the locking pin is retracted from the recess such that a portion thereof is retained within the pivotable body without preventing movement of the gate rail out of the recess. Also provided is a gate having said fastener and a method of securing a double gate using the fastener.

A laboratory cabinet, for instance a cold chamber, a heating cabinet, a drying cabinet, or an incubator, can have a housing featuring at least one exterior door, featuring at least one interior space which can be closed by means of an interior door, such that the laboratory cabinet features adjustable means, such that as a function of the position of the means, the interior door can be opened together with the exterior door or independently of the exterior door, such that the means are inaccessible when the exterior door is closed.

A container case with locking device which allows tool-free unlocking and access includes a top cover having a latching protrusion, a base with sliding top cover, and a handle assembly fixed on the base. The handle assembly includes a resilient catch plate and a handle portion having an operating portion and an elastic arm. When the operating portion is forced by a thumb or finger, the latching protrusion is released from the elastic arm and the handle portion, and the top cover can slide free. When top cover is replaced, the latching protrusion slides and forces back the catch plate until the latching protrusion is again latched by the catch plate and the handle portion. The handle assembly is on the side plate of the base, operators need to use only one thumb or finger to open the top cover.

A roller tongue (1) for a locking system includes a spindle, which is securable to the locking system, and a roller (2) rotatably mounted on the spindle. The spindle is formed as a multi-part element and includes a pin (3) and an adapter element (4). The adapter element (4) includes a receiver (5) for the pin (3) arranged eccentrically in the adapter element (4) and is fixable in different orientations onto the pin (3).

A rotary latch assembly for a galley cart compartment door is disclosed comprising a barrel member rotating on a spindle and a handle connected to the barrel member. An interfering block outside the barrel member can prevent rotation of the barrel member when engaged with the barrel member, and be displaced by a lock button diametrically opposed with the interfering block. The handle of the rotary latch bears against the door in a locked position to prevent the door from opening, and the button when depressed releases the barrel member to rotate and the handle to pivot out of the path of the door.

A door lock includes a pivot base installed on a wall locate beside an openable door leaf; a holding unit connected to the pivot base; a guiding unit installed on the wall and located at one side of the holding unit for guiding the latter to move. When the door leaf is closed, the holding unit can be turned about the pivot base and along the guiding unit to a horizontal position for a free end to interfere with the door leaf, and a user can place personal articles on the holding unit. To open the door leaf, the user first takes back the personal articles before the holding unit can be turned and unlocked. Therefore, the door lock can lock a door leaf, hold a user's personal articles when locking the door leaf, and remind the user to take back the personal articles before opening the door leaf.

The present invention is a system and method which comprises a rotating securing plate mounded on a door knob which engages a door frame to facilitate quickly securing a door to a door frame to protect the occupants of a room from an intruder. The system comprises a rotating stop in the doorknob which allows a user to open the door from within the secured room with a minimum of movements and time in the event of a dangerous situation in the room such as fire or other hazards. Through the use of an opening in the door frame, embodiments of the invention are equally applicable to doors that open inwardly and outwardly relative to an area to be secured.

A security gate including an outer gate and an inner gate for selective passage of people and/or pets therethrough. In one example, the security gate includes: an outer frame; an outer gate at least partially disposed within the outer frame; an inner gate disposed within the outer gate, the inner gate comprising an inner frame having at least one recess; a door at least partially disposed within the inner frame; and at least one projection extending from the outer gate and engaging the at least one recess for supporting the inner gate within the outer gate.