Patent ID: 8336843

Claim:
An attachment device useful in suspended ceiling grid systems, the attachment device comprising: a clip configured to matingly engage a ceiling tee; and a reinforcing sleeve configured to matingly engage the clip to provide a secure connection to the tee, the clip being formed by resilient sheet metal and being symmetrical about a central vertical plane, the clip having a top portion adapted to be suspended from an overlying structure and a bottom portion for engaging a bulb of the tee, the bottom portion being formed by a pair of spaced side portions, lower edges of the side portions forming inturned protrusions, a lead face of each protrusion being inclined upwardly and inwardly whereby the clip can be snapped over a bulb by thrusting the clip downward onto the tee such that the side portions are laterally adjacent the bulb and the protrusions underlie the bulb, the protrusions in a free state of the clip in assembled condition on the bulb being proportioned to substantially underlie the bulb, the reinforcing sleeve having an inverted U-shape and a central slot for receiving the top portion of the clip, the sleeve being proportioned to slip over the bottom portion of the clip and increase retention of the clip on the bulb, one of said side portions of the clip including a locking tab that lies alongside the bulb when the clip is installed on the tee and the reinforcing sleeve has a vertical side with a slot for receiving the locking tab.