Abstract: A combination crash rail and railing system provides walking-aid support along a wall and protects the wall from impact damage. The system includes a distinct handrail and crash rail components, and one or more wall-mounting brackets. The handrail and crash rail components are independently mounted along the wall on common wall-mounting brackets that are secured to the wall. The wall-mounting brackets have a universal design that allows flexibility in the choice of the types of handrail and crash rail components that can be installed. In one universal design, a wall-mounting bracket includes a base plate, which can be secured to a wall surface, and separate handrail- and crash rail-mounting flanges that are disposed at the ends of a pair of arms that extend from the base plate.

Abstract: An expansion joint for building panels, such as concrete floor slabs, comprises a U-shaped drape of a flexible, fire-resistant, impermeable material such as stainless steel foil. The opposite legs of the U-shaped drape are fastened between respective adjacent slabs and a mat of expandable fire-resistant material inserted within the U-shaped drape between the slabs. The impermeability and flexibility of the drape, coupled with the insulating property of the mat provide an inexpensive, effective fire seal between building panels that can also accommodate seismic displacement.

Abstract: A door is constructed with a separate member joined to the door edge by a tongue-and-groove coupling and screws so as to be readily removable and replaceable. The separate member sustains the impacts imparted to the door by carts or wagons pushed past the door and can be readily replaced when damaged, thus avoiding replacement of the entire door. A flexible cover snaps over the outer surface of the separate member to add impact resistance and aesthetic appeal. Intumescent strips may be inserted inside or outside of the cover to enhance sealing between the door, and at the adjacent door or door frame, thereby improving the fire resistance rating of the door. Accent strips or reveals of contrasting or complementary colors may be incorporated to add to the aesthetic appeal of the door. The door construction is of particular utility in schools, health care facilities and other institutions.