Abstract: A mobile ballistic bunker has a deployment mode and a storage mode. The ballistic bunker has a frame for holding ballistic panels in a vertical disposition for deployment and a horizontal disposition for storage. At least one of the ballistic panels is a vision panel made of a ballistic glass or other see-through ballistic material. The frame is supported by wheels that permit movement of the bunker over rough terrain. The wheels can be retractable to enhance the low-footprint of the bunker for storage.

Abstract: A batten system includes a stud, at least one removable flange and at least one closure strip. The at least one removable flange is secured to the stud by the closure strip without the use of a screw. The stud includes a neck opening with at least one receiving trough. The stud also includes a hammerhead-nut channel. The hammerhead-nut channel has a predetermined profile. In some embodiments, the screw-less batten system includes a hammerhead-nut.

Abstract: An extruded aluminum bottom-load ceiling used in conjunction with cleanrooms comprises main tees and cross tees with removable flanges. The tees are connected via cam-lock devices or splice bars and may be hung on a 4?×4? or 8?×8? configuration. The tees also include hammerhead-nut slots used to suspend the tees from the building structure above and hang AMHS hangers from the tees. Grid stiffeners are included to increase the carrying capacity of the tees.

Abstract: A raised access floor has panels suspended by pedestals. Each panel may have a top surface and a frame extending around the top surface. Each panel may have extruded aluminum components including four edge members, two intermediate members, and a center member. Each edge member may have a frame portion with a box beam configuration. The frame portions can be press-fitted with corner members to provide the frame. Two edge members, the intermediate members, and the center member may have top surface portions coupled together to form the top surface. The top surface may be supported by support ribs with enlarged bottom ends that resist bending. The ends of the support ribs are press-fitted against the frame. Components may be modified or removed to alter the panel geometry. A cover plate may be used to cover the top surface. The cover plate and/or top surface may be continuous or perforated.

Abstract: A sealable ceiling assembly is provided for use in applications such as clean rooms. The sealable ceiling assembly may include main beams suspended from a support ceiling parallel to each other and cross beams that run perpendicular to the main beams to attach the main beams together. Each cross beam has a bore from which coupling members extend to either side. Each coupling member has a head with a cam surface designed to interlock with a retention slot of the main beam in response to ninety-degree rotation of the coupling member. The coupling members are attached within the bores of the cross beams via set screws that can be rotated after engagement to urge retraction of the coupling members into the bore to tighten engagement of the cross beams with the main beams. Stiffeners may be attached to top nut slots of any of the beams that need reinforcement.

Abstract: A modular raised access floor panel includes a frame, a first edge member, a second edge member, and a center member. The first edge member has a first floor surface. The second edge member is disposed substantially perpendicular to the first edge member and has a second floor surface. The first center member is disposed adjacent to the first edge member and has a third floor surface. When the floor panel is assembled, the first floor surface, the second floor surface, and the third floor surface are disposed substantially within the same plane.

Abstract: A wall assembly includes at least two panel elements which are configured for contiguous placement adjacent to one another. Each of the panel elements defines a hollow internal passageway. The panels are configured to permit a contiguous placement whereby the respective passageways of the panels are brought into registration with one another. A connection element is positioned within one of the passageways. The connection element is accessible through a slot defined within the sidewall of the panel wherein the connection element resides. The connection element is slidable whereby it may be displaced partially into the second panel element. The connection element is thereafter actuatable whereby its lateral dimension is increased to form a pressure fit union with the interior sidewalls of the two passageways. In its spatially expanded configuration, the connection element provides a means of interconnecting the two panel elements together.

Abstract: A wall assembly includes at least two panel elements which are configured for contiguous placement adjacent to one another. Each of the panel elements defines a hollow internal passageway. The panels are configured to permit a contiguous placement whereby the respective passageways of the panels are brought into registration with one another. A connection element is positioned within one of the passageways. The connection element is accessible through a slot defined within the sidewall of the panel wherein the connection element resides. The connection element is slidable whereby it may be displaced partially into the second panel element. The connection element is thereafter actuatable whereby its lateral dimension is decreased to form a pressure fit union with the interior sidewalls of the two passageways. In its spatially decreased configuration, the connection element provides a means of interconnecting the two panel elements together.

Abstract: A ceiling structure within a cleanroom, including an array of cleanroom filters supported in openings of a grid support structure, wherein the ceiling structure includes a gel track coupled either at the top of the grid support channel. The cleanroom filters including a peripheral flange are suspended in the ceiling structure by having a ceiling edge of the peripheral flange either immersed in the gel track at the top of the grid support structure or using a cleanroom filter having gel or the lower knife edge seal thereof engaging a portion of the top of the grid support channel. Filtered air passes through the channel structure into the vortex region to reduce the vortex region or dead air space below the channel as well as prevent the accumulation of particulate material in the interior of the channel. A damper may be provided with the grid support structure to control the flow of filtered air into the interior of the grid support structure.

Abstract: A ceiling structure within a cleanroom, including an array of conventional HEPA filters supported in openings of a grid support structure, wherein the ceiling structure includes a gel track coupled near a lowest interior perimeter of each of the openings of the grid support structure. HEPA filters including a peripheral flange are suspended in the ceiling structure by having a ceiling edge of the peripheral flange immersed in the gel track in near proximity with the ceiling level. An inclined channel is formed along an inclined wall of the gel track such that a downward extension of the inclined wall projects into the vortex region under the grid support structure. Filtered air passing from the HEPA filter is then directed into this flow channel at a sufficient rate of speed to flush the particulate contaminate from the vortex region.

Abstract: A floor panel having a substantially planar upper tread surface comprises a cast grating havingfirst and second pairs of substantially planar, external sidewalls with upper side edges of the sidewalls approximately coinciding with the upper tread surface;a pair of substantially planar slats spaced closely adjacent to each other and extending from the first pair of opposite sidewalls across the frame, with the central, longitudinal planes of the slats being oriented substantially perpendicular to the upper tread surface of the floor panel and substantially parallel to each other, and further with upper side edges of the slats approximately coinciding with the upper tread surface, wherein the spacing between the slats is such that a fastener can be frictionally engaged between the slats for secure attachment to the slats;a plurality of substantially planar ribs extending from the first pair of opposite sidewalls across the frame, and being spaced apart from each other and from the pair of slats; anda plurality

Abstract: A device attachable to a suspended floor member (i) for collecting materials which fall through grid openings in the floor member and (ii) for controlling the rate of airflow through the grid openings in an adjustable manner. The device includes a spill container for positioning under the grid openings of the floor member in a coordinated position such that a venting path is provided for permitting airflow past the spill container from above the floor member while retaining the capacity to collect liquids and particulate matter flowing through the grid openings. Adjustable dampening structure is coupled with the spill member to provide selection of differing vent openings to control rate of airflow through the structure.

Abstract: A modular wall system including a plurality of wall panels removably attached between a floor and a ceiling by a head track assembly and a floor track assembly respectively. The wall panels include a core material covered on each face by a thin metal skin and are of sufficient strength and rigidity to allow their placement between the head and floor track assemblies without the requirement of stud members or the like. The head track and the floor track assemblies both comprise gasket elements which prevent the passage of microcontamination around the panel members, and the side surfaces of each panel member contains a gasket which abuts and seals against an adjacent panel member to prevent the flow of microcontaminants around the sides of the panel. The floor track assembly also comprises a fastening member which securely holds the bottom of the wall panel to prevent relative movement therewith.

Abstract: A floor panel having a substantially planar upper tread surface comprises a cast grating havingfirst and second pairs of substantially planar, external sidewalls with upper side edges of the sidewalls approximately coinciding with the upper tread surface;a plurality of substantially planar ribs extending from the first pair of opposite sidewalls across the frame, and being spaced apart from each other;a plurality of substantially planar cross ribs extending from the second pair of opposite sidewalls across the frame, and further being spaced apart from each other and forming common intersections with the ribs;wherein the ribs and cross ribs form subdomains between intersections of the respective ribs and cross ribs, the ribs and cross ribs contained within one of said subdomains being left out to form an opening through the floor panel which is larger in size than other openings representing smaller subdomains within the floor panel, said larger opening including a perimeter notch formed at an upper edge of t

Abstract: A floating connector system is provided for airtight sealing between a ceiling structure and a wall structure. The connector system comprises an elongate channel member which has a generally U-shaped cross section. The elongate channel member is attached to the ceiling structure such that the elongate channel member is supported by the ceiling structure and forms a continuous, airtight seal with the ceiling structure. An elongate cap member is attached to the wall structure to form the top edge of the wall structure. The cap member is received within the elongate channel member, with the sides of the cap member being spaced in flatwise orientation from the sides of said channel member. A pair of elongate, elastomeric seal members are positioned between the respective sides of the cap member and the channel member.

Abstract: A modular wall system including a plurality of wall panels removably attached between a floor and a ceiling by a head track assembly and a floor track assembly respectively. The wall panels include a core material covered on each face by a thin metal skin and are of sufficient strength and rigidity to allow their placement between the head and floor track assemblies without the requirement of stud members or the like. The head track and the floor track assemblies both comprise gasket elements which prevent the passage of microcontamination around the panel members, and the side surfaces of each panel member contains a gasket which abuts and seals against an adjacent panel member to prevent the flow of microcontaminants around the sides of the panel. The floor track assembly also comprises a fastening member which securely holds the bottom of the wall panel to prevent relative movement therewith.