A system for improved window fall prevention provides removable attachment of a window screen frame to a window frame. Systems according to the disclosure provide removable attachment of a window screen frame to an anchor positioned in the window frame by means of a plurality of cables. The cables attach to the screen frame or rest against an exterior portion of the screen frame at an exterior end, are threaded through the screen frame, and include on an interior end, opposite the exterior end, a releasable attachment to the window frame anchor. The releasable attachment may be between a loop of cable formed at the interior end and the window frame anchor, where the window frame anchor may be a T-screw.

A system for improved window fall prevention provides removable attachment of a window screen frame to a window frame. Systems according to the disclosure provide removable attachment of a window screen frame to an anchor positioned in the window frame by means of a plurality of cables. The cables attach to the screen frame or rest against an exterior portion of the screen frame at an exterior end, are threaded through the screen frame, and include on an interior end, opposite the exterior end, a releasable attachment to the window frame anchor. The releasable attachment may be between a loop of cable formed at the interior end and the window frame anchor, where the window frame anchor may be a T-screw.

A roller assembly for supporting a sliding security grille from an above-mounted track is disclosed. The roller assembly has a shank for securing the roller assembly to a panel of the sliding security grille and a rotatable collar that couples the shank to the wheels of the roller assembly to allow the axial rotation of the wheels about the shank. The roller assembly also includes an axle support that couples the wheels to the rotatable collar, and the axle support is sized to interfere with the lips of the track to limit the axial rotation to keep the wheels aligned in the longitudinal direction of the track.

The present sliding security door system includes a sliding security door extending between an upper track and a lower track. Separate motive and locking assemblies drive and secure the door, respectively. A control assembly in the system is capable of separately activating motive and locking effectors to allow for separate movement and locking/unlocking of the door. Because of this, the system is compact and capable of deployment in otherwise too-small spaces.

A burglar trapping system includes a grill assembly having a collapsible grill door adapted to be operated in a collapsed condition and an expanded condition and a motor adapted to operate the collapsible grill door. A sensing module is configured to detect a pressure applied on an object and a communication unit is configured to receive the detected pressure from the plurality of sensors and/or a triggering input from a remote electronic device and generate an input based on one of the detected pressure and the triggering input. A control unit in communication with the communication unit is configured to receive the input from the communication unit and operate the motor to move the collapsible grill door in the expanded condition.

A rail slider assembly to includes a rail adapted to be attached to a roof of the hangar and including a strut having a pair of lips arranged aligned to each other and defining an opening therebetween. At least one curtain is arranged to extend through the opening. A plurality of sliders is movably arranged inside the strut to support the at least one curtain and move the at least one curtain into an expanded configuration and a folded configuration. Each of the plurality of sliders comprises a frame arranged inside the strut, and a plurality of balls attached to the strut and supported on the lips. The plurality of balls is arranged to slide on the lips to facilitate the movement of the slider inside the strut. The at least one curtain is arranged at an entrance of a hangar.

A rail slider assembly to includes a rail adapted to be attached to a roof of the hangar and including a strut having a pair of lips arranged aligned to each other and defining an opening therebetween. At least one curtain is arranged to extend through the opening. A plurality of sliders is movably arranged inside the strut to support the at least one curtain and move the at least one curtain into an expanded configuration and a folded configuration. Each of the plurality of sliders comprises a frame arranged inside the strut, and a plurality of balls attached to the strut and supported on the lips. The plurality of balls is arranged to slide on the lips to facilitate the movement of the slider inside the strut. The at least one curtain is arranged at an entrance of a hangar.