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.

Abstract: Apparatus for fireproof cover of expansion voids consisting of expansion joint cover structure spanning the expansion void and supporting at least one layer of stainless steel foil and other refractory material in continual coverage across said void.

Abstract: The present invention consists of a metal trench grating and the method of manufacture by which it is constructed. The trench grating consists of plural cross bars having equi-spaced slots and a plurality of elongated rails inserted within the respective cross bar slots, and wherein a single weldment across the bottom of each cross bar provides complete fastening of the assembled trench guard. The method of manufacture stresses simplicity and quick assembly as the plural longitudinal rails are inserted in the plural-slotted cross bars and supported for final welding across the bottom central slot of each cross bar to produce the final form trench grating.

Abstract: Apparatus for fireproof and/or radiation resistant cover of expansion voids consisting of expansion joint cover structure spanning the expansion void and supporting at least one layer of stainless steel foil and/or lead foil and other refractory material in continual coverage across said void.

Abstract: Fire-resistant expansion joint apparatus of a type having opposed base connectors secured to movable structures defining an expansion void therebetween, and a fire barrier assembly slidingly maintained between said base connectors with a saturated adsorbent contained within the barrier assembly that releases coolant liquid by a wicking process into cooling chambers formed within said base connectors during application of high heat condition.

Abstract: Apparatus for concealment and abridgement of relatively larger expansion joint voids between structures exhibiting orthogonal relative movement. The assembly consists of base plate and slide structure secured in orthogonal disposition on opposite sides of an expansion void, with angular matching cover plate structure supported on said base plate and slide structure.

Abstract: A heat insulative barrier for use in isolating potential fire zones relative to expansion joint voids which comprises the use of a sealed sheet of ceramic felt material secured across an expansion void and including one or more refractory cloth sheets sealingly secured contiguous to the ceramic felt sheet on one or both sides thereof and adjacent to the potential fire zone.

Abstract: Apparatus for covering relatively wider building structure expansion voids which includes a cover panel, base member extrusions for opposite side support and a lazy tong centering assembly for both supportive attachment to the cover panel and maintaining proper alignment and relative positioning to said void in tolerance of orthogonal relative displacements between adjacent structures.

Abstract: A wear-resistant phosphorescent material consisting of a mixture of a selected ratio of phosphorescent pigment and bleached aluminum oxide as carried by a catalyst-hardened epoxy resin, such phosphorescent material being placeable in selected array on a tread plates or other tread surface.

Abstract: Fire-resistant expansion joint apparatus of a type having opposed base connectors secured to movable structures defining an expansion void therebetween, and a fire barrier assembly slidingly maintained between said base connectors with a saturated adsorbent contained within the barrier assembly that releases coolant liquid by a wicking process into cooling chambers formed within said base connectors during application of high heat condition.