Appeal No. 2003-0414 Page 6
Application No. 09/833,831
runners 16 positioned in parallel spaced relation normal to and interconnecting adjacent
parallel longitudinal beams 12. Figures 8-12 illustrate a means for rigidly
interconnecting two aligned cross runners 16 to a respective longitudinal main runner
14 disposed therebetween and in normal relation thereto. The main runner 14 to which
the cross runners 16 are to be connected includes a vertically oriented slot 94. Each
cross runner 16 includes a tongue portion 74. In order to rigidly interconnect the two
cross runners 16 and the main runner 14, the two cross runners 16 are held in
longitudinal alignment and the respective tongue portions 74 are inserted through the
slot 94 in the main runner 14 from opposite sides of the main runner 14, one at a time
and connected together.
O'Brien
O'Brien's invention relates to a suspended ceiling structure. As shown in Figures
1 and 6, the suspended ceiling structure includes a plurality of ceiling panels 10
supported within a suspended grid comprising wall members 11, main runners 12 and
cross members 13. The entire grid is suspended from the ceiling 14 by means of
plurality of vertical wires 15 which are looped through spaced holes 15a which are
formed in the main runners 12. The periphery of the suspended grid is formed by the
plurality of wall members 11 which are of L-shaped cross section with the vertical leg of
the L being fitted against the sidewall and the horizontal leg extending outwardly from
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