A method is provided for reducing dynamic forces on doors and windows and barriers and their supports. At least one impact receiver 10 is provided to receive the dynamic forces from its source. At least one impact reducer 20 is provided to transfer the dynamic forces from the impact receiver 10 to the supports while undergoing elastic deformation. Elastic deformation of the impact reducer 20 elongates the duration of the dynamic force, and reduces the dynamic forces on the doors and windows and barriers and their supports.

A frame door with a split connection frame is provided, including a split connection frame. The split connection frame includes a first connection frame which is provided in a frame door and a second connection frame which is provided in an other frame door. The first connection frame is provided with a slide rail groove, the second frame is provided with a slide plate which engages with the slide rail groove. The slide rail groove has a C-shaped cross section so as to wrap edges of the slide plate. By using the split connection frame design, and using the sliding connection solution of slide rail groove and slide plate, on the one hand, the operation is convenient, time and labor are saved by the preset slide track during mounting process. On the other hand, the frame door is enable to be positioned in the mounting process via the preset slide track, thereby avoiding the assembly error caused by improper operation when using the existing mounting method and improving the assembly accuracy.

A panel assembly includes a frame panel including a front surface, an upper surface, a side surface, and a rear surface and is formed as a single sheet of a metal plate, and a corner member disposed in a gap formed between the upper surface of the frame panel and the side surface of the frame panel, wherein the corner member includes: an insertion member inserted into the gap to fill the gap, and a fixing member integrally formed with the insertion member and coupled to the rear surface of the frame panel to fix the corner member to the frame panel.

This invention relates to doors having internal blocking components that reduce or eliminate telegraphing of the outer surface of the door facings. In particular, the invention relates to steel-edge steel doors that have internal solid wood blocks that have one or more integral cantilever beams formed into the blocks to interact with the adjoined oppositely arranged door facings in order to eliminate visually apparent door telegraphing. The blocks are modified to contain notches formed therein to form the cantilever beams.

A fire resistant panel for a fire door, the panel including a frame providing a rigid bordering structure for the panel and having an inner face, an outer face, an inner side and an outer side, the frame surrounding an inner space; and a core disposed within the inner space, the core having a peripheral edge adjacent the inner side of the frame.

A frame assembly for retaining an IG unit in an opening in a door or other panel structure may include a first frame configured to engage a surface of the door or other panel structure about a periphery of the opening and to engage the IG unit about an outer periphery thereof, and having a first coupling portion, a second frame integral with, or configured to engage, an opposite surface of the door about a periphery of the opening and to engage the IG unit about the outer periphery thereof, and having a second coupling portion, and an alignment member to engage each of the first and second coupling portions, between the periphery of the opening and the outer periphery of the IG unit, to align the first and second coupling portions with one another.

This invention relates to doors having internal blocking components that reduce or eliminate telegraphing of the outer surface of the door facings. In particular, the invention relates to steel-edge steel doors that have internal solid wood blocks that have one or more integral cantilever beams formed into the blocks to interact with the adjoined oppositely arranged door facings in order to eliminate visually apparent door telegraphing. The blocks are modified to contain notches formed therein to form the cantilever beams.

This invention relates to doors having internal blocking components that reduce or eliminate telegraphing of the outer surface of the door facings. In particular, the invention relates to steel-edge steel doors that have internal solid wood blocks that have one or more integral cantilever beams formed into the blocks to interact with the adjoined oppositely arranged door facings in order to eliminate visually apparent door telegraphing. The blocks are modified to contain notches formed therein to form the cantilever beams.

This invention relates to doors having internal blocking components that reduce or eliminate telegraphing of the outer surface of the door facings. In particular, the invention relates to steel-edge steel doors that have internal solid wood blocks that have one or more integral cantilever beams formed into the blocks to interact with the adjoined oppositely arranged door facings in order to eliminate visually apparent door telegraphing. The blocks are modified to contain notches formed therein to form the cantilever beams.

Building systems including a frame with a horizontal member from which first and second vertical bars downwardly extend and a panel attached to the frame. The building systems include at least one of an integrated fastener cover that is moveable to a closed position that covers a portion of a fastener, a gusset assembly with a junction cover positioned at a corner junction between two adjacent portions of a panel, and hinge assemblies that reduce the sagging of a panel, such as a door.