Patent ID: 8240630

Claim:
A hanger bar assembly comprising: a first hanger bar member comprising a first rail comprising a first end, a second end, and a first attachment structure disposed on the first end; a second hanger bar member comprising a second rail comprising a first end, a second end, and a second attachment structure disposed on the first end, the second hanger bar member being adjacent to the first hanger bar member wherein the first and the second attachment structures each comprise: a first wall coupled to the first end and disposed perpendicular to a longitudinal axis of the first rail, the first wall comprising a top end and a bottom end and a fastener aperture disposed between the top end and the bottom end and providing a passageway through the first wall; a mounting flange coupled to the bottom end of the first wall and extending out from the first wall in a substantially perpendicular direction from the first wall; an elongated slot aperture disposed along and providing a passageway through the mounting flange; and an attachment tab extending upward from the top end of the first wall, the attachment tab comprising a second fastener aperture disposed through the attachment tab, wherein the second fastener aperture is positioned above the fastener aperture of the first wall and provides a passageway through the attachment tab that is parallel with passageway provided by the fastener aperture through the first wall.