Abstract: A portable or operable wall system utilizing wall panels defining a wall or partition extending between a floor surface and a ceiling surface with the portable wall system including wall panels which are completely separable from the ceiling surface and includes lower support means for movably supporting the panels on a floor surface to facilitate movement of the panels to a desired location. The operable wall system includes ceiling trackways which suspend the panels to enable movement to a desired location.

Abstract: A folding door or other closure comprising a plurality of panels of extruded material each having a male hinge element along one edge thereof and a female hinge element along the other edge thereof with each panel being of unitary, one-piece construction. The hinge elements are so constructed that interconnection and separation of the panels is attained by longitudinal sliding movement of the male and female hinge elements in relation to each other. A locking means is provided in the form of a projecting means associated with one of the hinge elements which engages with recess means associated with the other hinge element to preclude relative longitudinal movement between adjacent panels while permitting relative pivotal movement between adjacent panels.

Abstract: A portable wall system utilizing portable wall panels defining a wall or partition extending between a floor surface or other lower surface and a ceiling surface or other overhead surface. The portable wall panels each include lower support means for movably supporting the panels on a floor surface to facilitate movement of the panels to a desired location. The upper edge of each panel is provided with a spring biased ceiling or overhead surface engaging member and the lower edge of each panel includes a vertically extendible and retractable floor surface engaging member so that the wall panels will form a complete partition between the floor surface and ceiling surface and be easily installed, removed or released and relocated. The side edges of the wall panels are constructed for inter-engagement with similar panel modules or wall mounted receptors.

Abstract: A hinge strip for a dual wall accordion folding door in the form of a continuous strip of resilient, flexible plastic material, or the like, defining a seal and hinge connecting the edge of four panels together thereby defining the interior hinge for the dual wall accordion folding door. The strip includes a central body adapted to be supported from an overhead track and four flanges projecting from the central body and connected with the panel edges. The central body and flanges may be of many shapes and configurations with a basic form of the strip including a solid central body and equally spaced identical flanges radiating therefrom. Another form of the strip includes a hollow central body and certain of the flanges being interconnected by a flexible web to define a pair of hollow interior areas to retain acoustical isolation of the panels from each other and one wall of the door from the other while at the same time stabilizing and controlling the hinge axes of the panels.

Abstract: A door or other closure, partition or the like incorporating a plurality of substantially rigid panels having interengaging hinge structures formed unitarily along each side edge thereof with certain of the panels being supported by roller equipped carriage assemblies adapted to engage an overhead track. The hinge structures include means permitting relative vertical movement between adjacent panels to enable quick assembly and disassembly. An end clip for the hinge structures prevents relative vertical movement between adjacent panels after assembly with the clip being removable for disassembly. The overhead track is connected to a ceiling supported bracket or rail by an insert or latch which enables lateral engagement of the track with the bracket or rail to facilitate quick assembly and also to enable lateral disengagement of the track from the bracket or rail to enable quick removal or disassembly.