A blast-protected window, including a sash including a glass plate surrounded by a first frame, and being carried by a second frame being fixed to an opening of a structure, and a third frame, being fixed to the structure opening, and including a first peripheral surface shaped for closely covering the room side of the second frame, and being configured to block, thereby blast directed from the external environment onto the glass plate knocks onto the first peripheral surface of the third frame disposed close thereto and being configured to block the blast.

Disclosed is a sectional door adapted to withstand high wind load and impact from flying debris. The door includes a glazing bead to secure glazing panels into frames formed by the rails and stiles of the door. The bead is connected with the frame by engagement between extensions on the bead and respective lips along the edges of the frame. The bead is pressed against the frame, causing the extension to elastically flex to allow the extensions to fit between the lips. The extensions are received in gaps formed by the lips to secure the bead in place on the frame. Force on the door cause by high winds is communicated from the glazing panel through the bead and to the frame. The door also includes reinforcements arranged along the rails to communicate forces, such as high wind load forces, from the frame to the edges of the doorway surrounding the door. The reinforcements include endcaps that increase stiffness of the rails to prevent the rails from buckling during severe weather events.

Disclosed is a sectional door adapted to withstand high wind load and impact from flying debris. The door includes a glazing bead to secure glazing panels into frames formed by the rails and stiles of the door. The bead is connected with the frame by engagement between extensions on the bead and respective lips along the edges of the frame. The bead is pressed against the frame, causing the extension to elastically flex to allow the extensions to fit between the lips. The extensions are received in gaps formed by the lips to secure the bead in place on the frame. Force on the door cause by high winds is communicated from the glazing panel through the bead and to the frame. The door also includes reinforcements arranged along the rails to communicate forces, such as high wind load forces, from the frame to the edges of the doorway surrounding the door. The reinforcements include endcaps that increase stiffness of the rails to prevent the rails from buckling during severe weather events.

Certain aspects of the present disclosure provide movable barrier, including: a frame having a first side and a second side parallel to the first side; a first exterior panel connected to the first side of the frame and including: a first non-planar profile; and a first plurality of perforations; a second exterior panel connected to the second side of the frame and including: a second non-planar profile; and a second plurality of perforations; a cavity defined between the first exterior panel and the second exterior panel; and a liner disposed within the cavity and configured to: deform when an air pressure differential acting on a first side of the liner exceeds a pressure differential threshold and allow increased airflow through the movable barrier.

A refrigerator including: a main body forming a storage compartment and a door provided to open and close the storage compartment, wherein the door includes a door frame, a cover arranged in front of the door frame and including a cover fixer, and a door panel arranged in front of the cover, the door panel including a first fixer and a second fixer on a rear surface of the door panel. When the door panel is coupled to a front side of the cover, the first fixer is coupled to the door frame and the second fixer is coupled to the cover.

A shade adapted for covering a classroom viewing window and assisting with compliance with emergency protocol during an emergency is disclosed. The shade may include a plurality folds connected to each other by a plurality of hinges configured to cover a classroom viewing window. Emergency related information and status indicators may be revealed upon the unfolding of the shade to assist teachers, school officials, police, and others to comply with established school emergency protocol. The shade further fulfills the requirement that the classroom viewing window be covered during an emergency lockdown. The shade may function as a standard “Exit” sign during non-emergency time. Another shade may include a case holding a material portion with handles that enable the shade to be moved up and down.

A shade adapted for covering a classroom viewing window and assisting with compliance with emergency protocol during an emergency is disclosed. The shade may include a plurality folds connected to each other by a plurality of hinges configured to cover a classroom viewing window. Emergency related information and status indicators may be revealed upon the unfolding of the shade to assist teachers, school officials, police, and others to comply with established school emergency protocol. The shade further fulfills the requirement that the classroom viewing window be covered during an emergency lockdown. The shade may function as a standard “Exit” sign during non-emergency time. Another shade may include a case holding a material portion with handles that enable the shade to be moved up and down.

A high load retention system for a sectional overhead door enables uninhibited operation of a standard roller track mechanism of a sectional overhead door, while allowing high wind loads to be seamlessly transferred from the track mechanism to a more robust high load jamb retaining element. The system comprises: a plurality of primary door panels, each having a front face; a primary track; engagement elements each having a first end connected to a primary door panel and a second end that rides in the primary track; a high load jamb retaining element positioned adjacent to the primary track and having a clasping portion; and a high load door retaining element connected to a primary door panel and having a clasping portion corresponding to the clasping portion of the high load jamb retaining element.

A window device comprising: a window, window frame, a window holder element, to which the window is attached along a periphery of the window, a window-motion dampening element, and a coupling device via which the window holder element is in engagement with the window frame. The coupling device comprises a projection and a guide recess and is arranged at the inner periphery of the window frame and, from a normal operation position of window, it allows motion of the window holder element in a first direction in which the window holder element is arranged to compress and deform the dampening element, but prevents the window holder element from moving in an opposite second direction.

A window device comprising: a window, window frame, a window holder element, to which the window is attached along a periphery of the window, a window-motion dampening element, and a coupling device via which the window holder element is in engagement with the window frame. The coupling device comprises a projection and a guide recess and is arranged at the inner periphery of the window frame and, from a normal operation position of window, it allows motion of the window holder element in a first direction in which the window holder element is arranged to compress and deform the dampening element, but prevents the window holder element from moving in an opposite second direction.