Disclosed is an automatic released foldable door having a two-way door structure, which foldable door comprises a first closing door device (11) and a second closing door device (13), wherein a first door leaf (2) is connected to one side of the first closing door device (11), the second closing door device has one side connected to the first door leaf (2) and the other side thereof connected to a second door leaf (6), the second door leaf (6) is a door-in-door and a two-way door structure; and the foldable door further comprises a plurality of fixing devices (3, 31, 7) and at least one hinge (4). The foldable door has a relatively small turning radius and can be folded for receiving, and the door-in-door can be rotated in different directions.

A garage door includes a package delivery door. The package delivery door is located at an opening through a panel of the garage door. The package delivery door comprises a frame which defines a package delivery opening and a delivery door which is movable between a first position in which it closes the package delivery opening and a second position in which it does not. In the second position, the door may serve as a ramp for sliding package into the garage space behind the garage door. A stop limits rotation of the delivery door to the second position. The package door may be lockable and include a bar code scanner.

This invention is directed toward a window for a garage door panel, where the window has an opening that is surrounded by a body portion, and can be manufactured as part of the manufacture of a garage door panel, or retrofitted into an existing garage door panel. The window has a sliding door that can be slid open to allow for air ventilation, and has bars so that pets cannot escape through the window when it is open, and some combination of a sliding screen and optional security bars to keep insects out and keep pets in the garage. The optional security bars can be bolted or otherwise attached to the panel, thereby not only strengthening the panel but also making it harder for pets to escape and any burglars to enter.

A Garage door with a secure door assembly including a garage door with a horizontally extending panel having a framework including parallel spaced apart horizontal members extending along a top edge and a bottom edge thereof and a secure package door assembly carried by the horizontally extending panel. The secure package door including an outer portion and an inner portion coupled together with the parallel spaced apart horizontal members captured therebetween. A door coupled by hinges to the outer portion and moveable between an open position and a closed position, A locking mechanism is included for locking the door in the closed position.

Provided is an attachable window for a windproof vinyl including: a door frame attachable to a windproof vinyl, defining a first opening, and serving as a frame of the first opening, wherein the windproof vinyl is installed on a window frame; a door cap covering the first opening; and first and second detachable members provided on a front side of the door frame and a back side of the door cap, respectively, and detachably attaching the door cap to the door frame.

An improved vertical lift door roller assembly has a wheel pivotally mounted to a shaft. The shaft is placed within a spring loaded locking cylinder. The locking cylinder is movable between a first position where it restricts pivoting of the wheel and a second position where the wheel is able to pivot. The door roller assembly is mountable to a support a vertical lift door, such as a bracket or a hinge. The roller wheel can be pivoted to decouple the roller from a vertical lift door wheel track and to reseat the wheel in the track.

A smaller door for the ingress and egress of persons through a garage door opening is provided within the larger garage door. The smaller door allows the ingress and egress of persons through a garage door opening without the need to open the larger garage door, which is sized to allow the passage of relatively larger vehicles.

A fire shelter including: a foundation including a slab; an internal frame mounted on the slab; external cladding formed from heat resistant masonry panels supported by the internal frame, the external cladding including wall cladding including wall panels and defining a door opening and roof cladding including roof panels; and a door mounted in the door opening, the door including a door frame hingedly connected to the internal frame adjacent to the door opening and door cladding including door panels formed from heat resistant masonry panels supported by the door frame, wherein when the door is in a closed position, the door cladding closes the door opening.

A door is formed into a folding door by dividing the door into two parts to left and right, that is, a hanging door and a door-end door pivotally supported by the hanging door, and the door-end door is used as the pressure difference mitigating mechanism, and the two doors are integrally operated in a normal time, while if a pressure difference is generated, the door-end door can be first opened in order to reduce an opening force, and the door device with a pressure difference mitigating mechanism with excellent operability is provided. A handle position, a latch position, and a torque are adjusted for a handle for door opening/closing, a door closer, a hinge closer for rotating the door-end door with respect to the hanging door, a latch A of the door-end door to a door frame, and a latch B of the door-end door to the hanging door.

A shelter includes: a shelter framework including (a) first and second frames, and (b) a plurality of purlin members, each purlin member interposing between the first frame and the second frame; a cover positioned over the shelter framework; a doorcase, secured to and positioned within the first frame, having a central portion, a first side portion and a second side portion, the central portion having an upper section that includes tracks on each side; a center door, extending from a top of the central portion of the doorcase to a bottom of the central portion of the doorcase, having a sliding structure on each side edge; and a first and a second door, each extending from the top of the corresponding side portion of the doorcase to the bottom of the corresponding side portion of the doorcase, the side doors being positioned on opposing sides of the center door, each side door including a track on the side adjacent the center door. When the center door is closed, the sliding structure is positioned within the tracks of the upper portion of the doorcase and the tracks of the side door.