Abstract: Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Abstract: In combination, extruded aluminum trim strips joined end-to-end and a splice plate, the trim strips together, the trim strip cross-sections including a web and a pair of opposed angles, the angles and web forming a track for receiving a mid-section of the splice plate with a close sliding fit, the splice plate having lever tabs at opposite ends, notches at sides of the plate, the plate being disposed in the tracks of both lengths of trim strips, the lever tabs and associated edges of the lever tabs formed by the notches being outside of the tracks, the associated edge being arranged in a locking manner with outer surfaces of the angles as a result of the lever tabs being bent in place towards the web.

Abstract: Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Abstract: A panel assembly for a suspended ceiling comprising a sheet metal body and support brackets attached to the body, the sheet metal body having a rectangular generally planar face portion, a side portion along each of four edges of the face portion, the side portions extending upwardly from the face portion edges to side portion edges, and flanges extending inwardly from the side portion edges such that the flanges overlie and are spaced from the face portion, the side portions intersecting at corners of the panel assembly and the flanges being adjacent the corners, a hanger bracket associated with each corner abutting and fixed to the flanges adjacent each corner, the hanger bracket having at least one hole for attaching a suspension wire at a location spaced from said each corner a distance substantially greater than a width of the flanges adjacent said each corner.

Abstract: A splice clip for a trim strip of the type having a receiving track with re-entrant flanges, the clip being formed as a single piece sheet metal body having an elongated configuration with parallel edges along opposed long sides lying in a flat plane, a locking tab on each longitudinal half of the body supported on an integral hinge, each locking tab having a locking edge eccentric of the respective hinge, each locking tab being pivotal on the respective hinge from an initial position with said locking edge in said plane to a locking position in which said locking edge is out of said plane whereby it is adapted to frictionally lock against a surface of the trim strip associated with the clip receiving track.

Abstract: A support bar, and method of its manufacture, for suspending grid members of a suspended ceiling, the bar being formed of a length of a sheet metal strip, a lower portion of the bar having regularly spaced holes for receiving and supporting bulbs of grid runners, an upper portion of the bars having longitudinally extending formed ribs, the ribs extending laterally from both sides of a central plane in which the lower portion lies.

Abstract: Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Abstract: Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Abstract: Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Abstract: A rectangular panel for a suspended ceiling, the panel having a suspension spring with two divergent arms at each of two opposed panel edges mounted on a rear side of the panel, each spring being mounted on the panel in an arrangement permitting the arms to lie parallel to a front face of a panel, project rearwardly perpendicular to the front face and to lie outside of the panel parallel to the front face, the spring mounting arrangement enabling the spring to be maintained in the rearward orientation by a force developed by the spring with its arms confined and locator elements for registering the panel with grid members of the ceiling.

Abstract: A rectangular panel for a suspended ceiling, the panel having a suspension spring with two divergent arms at each of two opposed panel edges mounted on a rear side of the panel, each spring being mounted on the panel in an arrangement permitting the arms to lie parallel to a front face of a panel, project rearwardly perpendicular to the front face and to lie outside of the panel parallel to the front face, the spring mounting arrangement enabling the spring to be maintained in the rearward orientation by a force developed by the spring with its arms confined and locator elements for registering the panel with grid members of the ceiling.

Abstract: A perimeter trim attachment clip formed as a single piece sheet metal stamping, the clip having a base, top and bottom rearwardly extending trim engaging grips on the base, the grips having a free edge distal from the base adapted to engage respective top and bottom hems of a perimeter trim channel, a standoff projecting rearwardly of the base beyond the grip edges, the standoff being adapted to abut the side of a grid runner extending parallel along the periphery of a free edge of a ceiling, a squaring tab connected to the base and configured to extend over the parallel extending grid runner and be attached to a reinforcing bulb of a grid runner intersecting the parallel grid runner.

Abstract: A cross member for a narrow channel in a suspended ceiling grid comprising a carrier and a cover, the carrier having a web and a planar flange on a lower edge of the web, end connectors at opposite ends of the carrier web, the cover having a three-dimensional cross-section with an overall width generally equal to the width of the carrier flange and integral bendable tabs, the tabs being adjacent the ends of the cover and short in comparison to a length of the cover, the tabs being constructed to be manually folded over the flange of the carrier to lock the cover to the carrier.

Abstract: A short cross member for a narrow utility channel formed of malleable sheet metal and having a vertical double ply web and a horizontal flange symmetrically disposed on both sides of a lower edge of the web, integral end connectors formed on each end of the cross member from sheet material contiguous with the web, the integral end connectors being arranged to support the flange in coplanar relation with flanges of the channel, the end connectors and the web being weakened at a predetermined vertical line whereby the cross member can be assembled in a narrow channel by bending at the associated line of weakness to shorten the effective overall length of the cross member.

Abstract: An elongated stabilizer bar for maintaining a pair of grid runners in parallel upright positions to support a panel on respective grid runner support surfaces, the stabilizer bar having a horizontal leg and a vertical leg, the horizontal leg having self-penetrating tabs arranged to pierce and thereby grip a core of the panel to fix the stabilizer bar to the panel, a vertical leg having a vertical slot at each end, the slot having an open bottom, the slot having a horizontal width adapted to receive and confine an upper reinforcing bulb of a respective one of the pair of grid runners to thereby restrain the respective grid runner against excessive bowing and twisting deflection.

Abstract: A cross member for a narrow channel in a suspended ceiling grid comprising a carrier and a cover, the carrier having a web and a planar flange on a lower edge of the web, end connectors at opposite ends of the carrier web, the cover having a three-dimensional cross-section with an overall width generally equal to the width of the carrier flange and integral bendable tabs, the tabs being adjacent the ends of the cover and short in comparison to a length of the cover, the tabs being constructed to be manually folded over the flange of the carrier to lock the cover to the carrier.