Patent ID: 8578673

Claim:
In a grid ( 25 ) in a suspended ceiling ( 20 ) having a span between opposing parallel walls ( 30 , 31 ), the grid having (a) a wall molding ( 21 ) secured along each of the opposing parallel walls ( 30 , 31 ), and (b) inverted T-beams ( 40 ) extending between the opposing parallel walls ( 30 , 31 ), that are supported at their ends on the wall moldings ( 21 ), the improvement comprising (c) a span of up to about twelve feet having a support track ( 50 ) secured along each opposing parallel wall ( 30 , 31 ), above the wall molding ( 21 ); and (d) a gusset stay ( 60 ) at each end of a T-beam ( 40 ) that 1) is connected at its upper end to a support track ( 50 ), 2) extends diagonally downward from the support track ( 50 ), and 3) is connected at its lower end to an inverted T-beam ( 40 ) extending between the opposing walls ( 30 , 31 ); wherein (1) a parallel wall, (2) a gusset stay, and (3) the end of an inverted T-beam form a truss that supports a T-beam away from the wall, whereby the span of ceiling between the parallel walls supported without hang wires from a structural ceiling, is increased.