Abstract: An improved cold formed, sheet metal profiled building unit and method of making the same are disclosed. The building unit incorporates at least one longitudinal stiffening rib in a longitudinal flat region of the type having a tendency to buckle when subjected to compressive forces. The longitudinal stiffening rib is formed not by drawing-in sheet metal as in current roll forming practices, but, instead, by stretching a segment of the sheet metal. Each longitudinal rib has a profile width, as measured along the centerline of the rib, which is greater than the linear of the sheet metal segment from which it was stretched-in. Roll forming machines incorporating the principles of this invention utilize fewer roll stands than do roll forming machines incorporating the principles of current roll forming practices.

Abstract: An improved cold formed, sheet metal profiled building unit and method of making the same are disclosed. The building unit incorporates at least one longitudinal stiffening rib in a longitudinal flat region of the type having a tendency to buckle when subjected to compressive forces. The longitudinal stiffening rib is formed not by drawing-in sheet metal as in current roll forming practices, but, instead, by stretching a segment of the sheet metal. Each longitudinal rib has a profile width, as measured along the centerline of the rib, which is greater than the linear of the sheet metal segment from which it was stretched-in. Roll forming machines incorporating the principles of this invention utilize fewer roll stands than do roll forming machines incorporating the principles of current roll forming practices.

Abstract: An elevated access floor, or pedestal floor wherein a two-cell duct element spans one or more support pedestals is disclosed. The duct element distributes two different services, such as high and low voltage wiring to various locations in the access floor area. A feeder unit having removable covers extends transversely of the duct element and serves to feed the wiring of the two services from central locations, such as a telephone closet and a power closet, to the duct elements.

Abstract: A floor panel for use in elevated floor assemblies, having a unique flexible edge construction including a relatively thin, flexible strip extending around the entire perimeter of the panel and projecting laterally outwardly from contiguous side and end faces of the panel. Plural panels supported on spaced pedestals are disposed in side-by-side relation with adjacent side and end faces spaced from each other but with adjacent flexible strips in edge-overlapped relation.

Abstract: A preset access housing for use with metal cellular flooring units of the type placed in building floors, and which provide generally parallel enclosed cells separated by troughs. The housing spans between the confronting webs of two of the cells and has side walls depending into the region between the cells to enclose a trough space. A connection formed in part from portions of the end walls of the housing and in part by slots in the generally vertically webs of the cells, connects the housing to the flooring unit. Deflectible means associated with the side walls of the housing, engage a surface of the flooring unit in the region between the cells, are deflected, and urge the housing upwardly relative to the flooring unit thereby to retain the connection between the housing and the flooring unit.

Abstract: An adjustable pedestal adapted to support individually removable panel members in accurate, edge-aligned relation and in a common horizontal, that is level plane. The pedestal includes a head assembly supported on an upper end of a support. The head assembly includes a head member having a generally flat upper surface which is adjustable vertically, rotationally and laterally of the support rod. Abutment means adjustable along the support rod, is engaged by the head member and establishes a position of the head member wherein the upper surface resides in the horizontal plane. Clamping means clamps the head member to the support rod. Radially extending lugs extend above the upper surface of the head member. The arrangement is such that an adjacent pair of lugs of one pedestal cooperates with adjacent pairs of lugs from adjacent pedestals to define a panel supporting surface which is horizontal and which coincides with said horizontal plane.

Abstract: A metal cellular flooring unit presents at least two enclosed cells separated by a lengthwise trough. A distinct partitioning element substantially coextensive in length with the first cell, divides the first cell into first and second subcells. A set of access openings is provided including distinct crest and web access openings in the crest and one web of the first cell providing access solely to the first and second subcells, respectively; and a web access opening in that web of the second cell opposite to web access opening of the first cell, providing access to the second cell. The flooring unit is thereby adapted for separate distribution of the wiring of three different services, such as, computer or like services, telephone and power. Access to all three services is available at each location along the length of the flooring unit at which a set of access openings is provided.

Abstract: A metal cellular decking section comprising a fluted upper element and a lower element secured to the upper element along contiguous portions thereof. At least one longitudinally extended expanded metal zone is provided in the lower element. The upper element may include a formation defining a channel which extends parallel with the expanded metal zone and which presents an opening adjacent to the expanded metal zone. In the present metal cellular decking section, the expanded metal zone promotes mechanical bonding of subsequently applied fireproofing material to the underside of the lower element; increases the coverage width for a given steel girth; and provides access to the channel for attachment of hanger means. A method of fabricating the present metal cellular decking section is disclosed.

Abstract: An underfloor access housing adapted for use with cellular flooring units of the type normally placed in building floors, and which provide plural cells separated by troughs. The access housing presents a dual outlet opening in its top wall, spans across a trough, and is secured to the crests of adjacent cells. Trough closures positioned on opposite sides of the access housing, enclose a trough space accessible through the dual outlet opening. Cell access openings provided in the webs of the flooring unit establish communication between the cells and the trough space. A partition divides the interiors of the housing and of the trough space into separate compartments, each including one of the cell access openings and one including the dual outlet opening. The partition is adapted to support at least one electrical plug receptacle whereby electrical connections may be made beneath the level of the finished floor.