Abstract: A raised access flooring system is disclosed, which comprises a raised access flooring system module comprising a space frame web which is supported by adjustable pedestals, wherein the space frame web comprises a plurality of elongate structural members and a grid. A flooring member is fixedly attached to the web. The pedestals may be positioned under the grid. Some of the elongate structural members forming the web are inclined to the flooring member while those close to the edges of the web are more vertically oriented. This space frame arrangement economizes material usage and reduces cost compared to conventional modules. The module is so configured that it can be emplaced as a member of a flooring system, and is easily removable and interchangeable.

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.

Abstract: The present invention relates to a flow rate adjustment device which allows for adjustment of air flow through the fan without changing the rpms of the fan blades. In one embodiment, an adjustable plate is located in the center of the impeller and is movable in such a manner that various lengths of the blade edges are blocked from the intake air at the center of the impeller. In another embodiment of the invention, the plate is replaced by an inflatable blocking device which can be inflated to various degrees thereby blocking various lengths of the blade edges. In both embodiments, the blocking of the blade edges results in less intake air being exposed to the blades, and thus less air moves through the fan even though the rpms remain constant.

Abstract: A modular wall system adapted for use as part of a clean room structure, comprising a plurality of unibody panel sections, each panel section having a uniform width and including an exterior face, an interior face, and laterally opposing assembly flanges extending along the length of each edge of the panel section. Each assembly flange includes (i) a flange side wall extending inward from the interior face, (ii) an interlocking member adapted to be engaged with another interlocking member of a separate panel to secure the two flanges together, and (iii) a sealing member for sealing openings between coupled assembly flanges. A support channel configured in size and shape for snug fit around the coupled assembly flanges includes a channel cap and side channel walls which extend for equal lengths sufficient to abut against the interior faces of the coupled panel sections. These side walls operate as spacer members for aligning panel sections as the assembly flanges are secured within the support channel.

Abstract: An industrial cleanroom structure including a plenum enclosure assembly positioned above a cleanroom enclosure assembly. The plenum assembly includes plenum support structure rigidly attached and including top and bottom covers and sidewall covers sealed to prevent entry of microcontamination into the plenum enclosure. The plenum top cover includes openings for receiving air propelled by overhead fans into the plenum area. The plenum bottom cover comprises a filter system through which air is expelled into the cleanroom enclosure. The cleanroom enclosure includes a plurality of fabricated wall studs removably attached to the plenum support structure in vertical orientation to form wall support structure having exact vertical and horizontal alignment. At least one horizontal span cord is coupled to the plenum support structure and indirectly to the wall support structure to rigidly tie all coupled studs together in load sharing relationship.