Systems, methods, and apparatus are disclosed involving a door blocking apparatus to reduce a likelihood of, and possibly prevent, opening of a door by unauthorized personnel. The apparatus may be networked in a security system and may be connectable to an online security platform. In a particular embodiment, an embodiment of the invention may include a security system involving a plurality of door locations having a plurality of networked door blocking apparatus. Each door blocking apparatus may include a door blocking mechanism operable by a user on a safety side of a door, such as having the user rotate an apparatus handle that rotates the door blocking mechanism between a non-blocking position and a blocking position. In the non-blocking position, the door blocking apparatus does not block the door from opening and closing. In the blocking position, the door blocking apparatus blocks the door from opening and from closing completely.

A latch arrangement for fastening a panel of a door or a window to a frame element, the panel including a depression is provided. The latch arrangement includes a locking element pivotally mounted an the frame element and displaceable between a locked position in which the locking element is engaged with the depression of the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the depression of the panel unlocking thereby the panel from the frame element, a stop latch selectively deployable to secure the locking element in the locked position, precluding thereby displacement of the locking element to the unlocked position; and an actuating mechanism configured to selectively pivot the locking element away from the depression to the unlocked position.

A door-operating assembly has an operating device having a device housing and a device magnet and rotatable in the housing about a first axis between a first functional position and a second functional position, and a status indicator that is coupled with the operating device and has an indicator housing and an indicator magnet movable in the indicator housing along the first axis between a first display position and a second display position. The magnets are so oriented that rotation of the device magnet about the first axis from the respective first functional position into the respective second functional position displaces the indicator magnet axially of the first axis from the first display position into the second display position.

A door assembly is provided having a latch assembly. The latch assembly includes a head portion, a first latch housing, a second latch housing, a latch hub, and a hub cradle. The latch housings both define a respective opening. The hub cradle defines a recess offset from a center of the hub cradle. The hub cradle is positioned between the latch housings, and the latch hub is positioned in the hub cradle so that it is aligned with the recess. The hub cradle is configured to be received in the openings of the latch housings to provide a latch assembly having a short backset panel configuration or a long backset panel configuration. A distance from the head portion to the latch hub in the long backset panel configuration is larger than a distance from the head portion to the latch hub in the short backset panel configuration.

A slide-and-swing wing system includes at least one rail profile. At least two wings, each displaceably mounted in the at least one rail profile via two support elements The at least one rail profile has a lateral outlet opening for unlatching a support element of a wing. One wing functions as a door leaf which, with all other wings in the latched state, is pivotable into the remaining opening. A closure mechanism makes it possible to prevent the door leaf from being opened and includes a drive, and also an operating part, via which the drive can be actuated. The door leaf is displaceable, via the drive, in the rail profile in the direction of the adjacent wing to such an extent that no support element of the door leaf is aligned with the outlet opening, thereby preventing a support element from coming out through the lateral outlet opening.

A hinge lock for locking a door leaf with respect to a door frame and for pivoting the door leaf with respect to the door frame. The hinge lock has a first hinge element for arranging on the door leaf and a second hinge element for arranging on the door frame. The first hinge element and the second hinge element can be locked with respect to one another by means of a bolt which can be moved back and forth in a locking direction between an unlocking position and a locking position and the locking position by means of a drive rod which can be moved transversely to the locking direction. The disclosure further relates to a door having a hinge lock.

A locking mechanism for use with a door structure having a corrugated surface includes a main body having a corrugated surface. The locking mechanism is configured to be adjustable between an unlocked position where the corrugated surface of the main body is not nested relative to the corrugated surface of the door structure and a locked position where the corrugated surface of the main body is nested relative to the corrugated surface of the door structure. The corrugated surface of the main body includes a plurality of engagement surfaces. Each of the engagement surfaces is configured to resist movement and/or deformation of the door structure with respect to a direction of movement of the door structure associated with the door structure being moved from a closed position towards an open position.

A three-dimensional printing system for manufacturing a three-dimensional article includes a chassis, a door, and a plurality of latches. The chassis defines an internal process chamber and a vertical opening for accessing the internal process chamber. A peripheral seal surrounds the vertical opening. The plurality of latches are arranged around the peripheral seal. The latches individually include a hook. The vertical door is mounted to the chassis by a linkage. The door includes a plurality of laterally extending pins individually corresponding to the latches. The pins have locations along the door to be individually engaged by the latches when the door is positioned in the closed position. The latches are individually configured to rotate the hooks around a second lateral axis (Y) when the door is positioned in the closed position with the door closing over the opening to secure the door with respect to a first lateral axis (X).

Systems, methods, and apparatus are disclosed involving a door blocking apparatus to reduce a likelihood of, and possibly prevent, opening of a door by unauthorized personnel. The apparatus may be networked in a security system and may be connectable to an online security platform. In a particular embodiment, an embodiment of the invention may include a security system involving a plurality of door locations having a plurality of networked door blocking apparatus. Each door blocking apparatus may include a door blocking mechanism operable by a user on a safety side of a door, such as having the user rotate an apparatus handle that rotates the door blocking mechanism between a non-blocking position and a blocking position. In the non-blocking position, the door blocking apparatus does not block the door from opening and closing. In the blocking position, the door blocking apparatus blocks the door from opening and from closing completely.

A frame door locking assembly suited for reinforcing doors with additional security measures is presented. The frame door locking assembly comprises a mounting frame, at least one track assembly, at least one latch assembly, at least one actuator, and a processing unit. The at least one track assembly traverses along the mounting frame. The at least one latch assembly is distributed about the mounting frame. The at least one latch assembly is hingedly connected to the at least one track assembly. The at least one actuator is connected adjacent to the mounting frame. The at least one actuator is operatively engaged to the at least one track assembly, where the at least one actuator is configured to move the at least one track assembly in a locked configuration and an unlocked configuration. The processing unit is electronically connected to the at least one actuator.