Valuted sub-ceiling illumination system

Claim 2

A sub-ceiling system comprising; (a) a plurality of flourescent illumination means; (b) a gridwork comprised of a plurality of framework members extending between the walled surfaces of a room and interconnecting with one another to provide a support matrix having a plurality of apertures, wherein ones of said framework members exhibit a right angled cross sectional shape and others of said support members exhibit a T cross sectional shape; (c) a plurality of translucent panels supported in ones of said apertures of said gridwork; (d) a plurality of rib members supported in arcuate relation within at least one of said apertures; and (e) means for supporting at least one of said translucent panels in indexed relation to said rib members.

Claim 3

Apparatus as set forth in claim 1 wherein said indexing means comprises a plurality of right angled members secured to an unexposed surface of said rib members.

Claim 4

Apparatus as set forth in claim 1 wherein the peripheral framework members of said gridwork are secured solely to the walled surfaces and a plurality of said T shaped framework members substantially span said room and are rigidly secured at their opposite ends to said peripheral framework members and said walled surfaces.

Claim 5

Apparatus as set forth in claim 1 including a plurality of relatively short T shaped framework members secured at at least one end through an aperture in a relatively long, transversely mounted T member extending between opposite walled surfaces and wherein each end of said rib members is notched to mount about the end of one of said T members.

Claim 6

Apparatus as set forth in claim 1 wherein each of said plurality of rib members exhibits an exposed width substantially the same as each of said T members.

Claim 7

A sub-ceiling system comprising: (a) a gridwork system including a plurality of support members interconnected to one another to form a matrix having a plurality of apertures and secured solely to a plurality of walled surfaces of a room, wherein ones of said support members exhibit a right angled cross sectional shape and others of said support members exhibit a T cross sectional shape, wherein a plurality of relatively long T shaped support members are mounted in spanning parallel relation to opposite ones of said walled surfaces and wherein a plurality of relatively shorter T shaped support members are transversely supported between said spanning T members; (b) a plurality of rib members exhibiting an exposed lower surface identical to a lower surface of each of said T shaped support members, wherein each of said rib members is sized to mount in arched relation between adjacent ones of said spanning T shaped support members and wherein each rib member includes indexing means secured to an upper surface; and (c) a plurality of translucent panels sized to mount within the apertures of said gridwork relative to said indexing means and over said arched rib members.

Claim 8

A sub-ceiling system comprising: (a) a gridwork system including a plurality of support members interconnected to one another to form a matrix having a plurality of apertures and secured solely to a plurality of walled surfaces of a room, wherein ones of said support members exhibit a right angled cross sectional shape and others of said support members exhibit a T cross sectional shape, wherein a plurality of relatively long T shaped support members are mounted in spanning parallel relation to opposite ones of said walled surfaces and wherein a plurality of relatively shorter T shaped support members are transversely supported between said spanning T members; (b) a plurality of rib members exhibiting an exposed lower surface identical to a lower surface of each of said T shaped support members, wherein each of said rib members is sized to mount in arched relation between adjacent ones of said spanning T shaped support members and wherein each rib member includes indexing means secured to an upper surface; and (c) a plurality of translucent panels sized to mount within the apertures of said gridwork relative to said indexing means and over said arched rib members.

Claim 9

Apparatus as set forth in claim 6 including a plurality of flourescent light fixtures mounted in the space between said ceiling system and a ceiling surface of said room.