A safety open and closing system for an overpressure door on fuselage of an aircraft. Wherein the safety opening and closing system allows safe access through the overpressure door to the compartment. The safety open and closing system including an assembly of a hollow beam, a blocking bar in the hollow beam, a spring biasing the blocking bar with respect to the hollow beam and a lever at the end of the blocking beam which pivots between a position A that allows closure of the overpressure door and a position B preventing closure of the door.

A safety open and closing system for an overpressure door on fuselage of an aircraft. Wherein the safety opening and closing system allows safe access through the overpressure door to the compartment. The safety open and closing system including an assembly of a hollow beam, a blocking bar in the hollow beam, a spring biasing the blocking bar with respect to the hollow beam and a lever at the end of the blocking beam which pivots between a position A that allows closure of the overpressure door and a position B preventing closure of the door.

Structure of fillings for openings comprising a sheet material panel, a frame set, seals, a shock-dampening and absorption system, and insulation materials. With the filling structure for openings, the kinetic energy of a shock wave from an explosion is converted throughout the surface of the filling into a potential energy of the building, i.e. the kinetic energy of the shock wave is absorbed into the building.

Structure of fillings for openings comprising a sheet material panel, a frame set, seals, a shock-dampening and absorption system, and insulation materials. With the filling structure for openings, the kinetic energy of a shock wave from an explosion is converted throughout the surface of the filling into a potential energy of the building, i.e. the kinetic energy of the shock wave is absorbed into the building.

A roller shutter may include a rotatable drum; a shutter curtain including a series of three or more elongate slats pivotally interlocked in a longitudinal-edge-to-longitudinal-edge arrangement and arranged parallel to the rotatable drum, wherein a first and second longitudinal end portions of each elongate slat may be respectively aligned to form a first side border and a second side border, respectively, of the shutter curtain, wherein the first and second longitudinal end portions of each elongate slat may be respectively provided with at least one eyelet-structure which protrudes therefrom, whereby a first and second rows of eyelet-structures are formed along the first and second side borders; and at least a first cord and a second cord respectively strung loosely through all eyelet-structures of respective row of eyelet-structures, and each cord may be configured to confine all eyelet-structures of the respective row of eyelet-structures within a length of each cord.

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.

Door systems having a vision light system that provides resistance to and protection from the elements, such as but not limited to physical impacts (e.g., penetration from projectiles), protection from fire, protection from fluid penetration, or the like. The vision light systems may be customizable in order to provide different protection rating levels depending on the requirements of the structures in which vision light systems will be used. The vision light systems allow for the use of vision lights that extends past the envelope of the door. The vision light systems may utilize one or more interchangeable and/or adjustable components, such as one or more reinforcement members, one or more restraining members, one or more trim members, or the like may be utilized to secure different vision lights within the vision light system in order to provide the desired level of protection.

The application describes a frame assembly comprising: a first inner frame section adapted to be fitted to a first peripheral portion of a first surface of sheet material, the first peripheral portion is adjacent a peripheral edge; a second, separate inner frame section adapted to be fitted to a second peripheral portion of a second surface of sheet material, the second peripheral portion is adjacent a peripheral edge, and the second surface is opposite the first surface; and an outer frame section for receiving the sheet material with the inner frame sections fitted thereto, the outer frame section comprising first and second projections. The first frame section defines a space adapted to receive the first projection of the outer frame section, the space of the first inner frame section cooperates with the received first projection to restrict movement of the first inner frame section relative to the outer frame section.

Embodiments described herein may be directed to the functional application and method of use of the compression gasket for sealing a window installed in a window frame. In accordance with the present disclosure, a compression gasket may comprise soft rubber portion that applies pressure against a window surface. The soft rubber portion may compress, causing a rigid plastic portion that to bow outwardly and engage inner surfaces of the window frame. The bowing out of the rigid plastic portion, which may include a leaf spring, may secure the compression gasket to the window frame. The compression gasket may be designed to stop water leakage that may occur between the window and the window frame.

An overhead door includes a plurality of articulating panels. At least one of the plurality of articulating panels includes a frame defining an opening, the frame having a ledge and a lip extending from the ledge into the opening and a transparent panel having a first side and an opposing second side. The transparent panel is positioned adjacent to both the lip and the ledge with the first side of the transparent panel positionable adjacent the lip. The plurality of articulating panels further includes a retainer member positionable adjacent the second side of the transparent panel and operable to be fastened to the frame.