Patent ID: 7805904

Claim:
A system comprising: a plurality of frame members defining an open gridwork suspended over a floor, the plurality of frame members including a first frame member and a second frame member extending substantially parallel to the first frame member; a plurality of tiles supported by the plurality of frame members, including a first tile supported between the first and second frame members; and a grid spanner including: a channel member having a first end and a second end, defining a length between the first and second ends, and forming an inner track extending lengthwise along the channel member; a hanger assembly slidably received in the track of the channel member, wherein the hanger assembly includes a first hook member and a second hook member each having a base portion slidably received in the inner track of the channel member and wherein the first hook member and the second hook member are adapted to mate in a complementary fit; a first end bracket fixedly connected to the first end of the channel member and having a first hook portion that is releasably secured to the first frame member, the first hook portion having a lateral width that is greater than a thickness of the first hook portion; and a second end bracket connected to the second end of the channel member and releasably secured to the second frame member, wherein the first frame member includes a web portion that is substantially vertical and a flange portion that is substantially horizontal, and further wherein the first end bracket includes a hook portion adapted to extend over the web portion, a body portion adapted to extend along the web portion, a tread portion adapted to extend along the flange portion, and a riser portion adapted to extend below the flange portion, the first tile being supported on the tread portion, and the channel member being spaced from the tread portion by the riser portion such that the channel member is disposed below the flange portion.