Abstract: An entry grid includes a plurality of spaced, side-by-side, grid sections each having a tread rail and a depending support leg with sections interlocked by a locking bar extending transversely through respective locking holes in the support legs. The support legs include locking teeth engaged by complementally configured element teeth of corresponding locking elements extending radially from the locking bar shaft.

Abstract: Portal apparatus (40) is provided for interconnection between adjacent first and second structures (32, 34) in order to maintain operative communication between the structures (32, 34) under seismic conditions. The apparatus (40) includes a portal assembly (36) together with coupling assemblies (38, 40) permitting translation and rotational movement of the portal assembly (36) about three orthogonal axes (X, Y and Z) in space. The first coupling assembly (38) serves to secure assembly (36) to structure (32) and permits rotation about and translation along the X axis, as well as rotation about the Y and Z axes. The second coupling assembly (40) slidably connects the remote end of assembly (36) to structure (34) and accommodates Y and Z axes translation.

Abstract: A support for connecting a facade to at least one and preferably two buildings permits limited movement of the facade during seismic disturbances. The support includes a coupler presenting a projecting member and a mount presenting a receiver complementally configured with the projecting member. In one application, the projecting member and receiver define a track for permitting relative translational movement therealong, while in another application the projecting member and receiver define a hinge which may permit both limited pivotal movement and limited translational movement between the projecting member and the receiver.

Abstract: A preferred foot traffic grid has a plurality of grid sections including an initial grid section, a terminating grid section, and a plurality of intermediate grid sections therebetween. Adjacent grid sections are coupled using a pair of spaced connectors received in corresponding channels in the adjacent connector. The channels and connectors are positioned on opposed sides of a support leg.

Abstract: An improved expansion joint assembly (10, 70) is provided for bridging an expansion void (12, 72) between adjacent, relatively shiftable structural sections (14, 6, 74, 76). The assembly (10, 70) includes a pair of supports (18, 20, 78, 80) respectively secured to the sections (14, 16, 74, 76), as well as a bridging member (22, 82) operatively engaging the supports (18, 20, 78, 80). A resilient compressible filler (24, 128, 130) is located between a bridging member (22, 82) and adjacent portions of the supports (18, 20, 78, 80). The filler (24, 128, 130) is preferably in the form of a compressible, resilient body including walls (62) defining a series of openings (64), so that the filler can accommodate significant movement without bulging or failure.