Patent ID: 8056294

Claim:
A suspended ceiling system comprising elongated metal grid members and rectangular composite acoustical panels, the panels having edges at their peripheries, the grid members having a cross section generally with the shape of an inverted T such that they provide a vertical web and flanges extending from opposite sides of the vertical web, the flanges having a horizontal portion adjacent the web and a vertical portion distal from the web, the flanges being adapted to support the panels at the edges of the panels, a resilient element provided on the vertical portion of each flange away from the web, the resilient element being arranged to be temporarily resiliently deflected by a camming action with a contacting edge of a panel with forcible upward movement of the panel to permit the panel to be raised from below the grid member into an installed position and to extend itself to hold such panel in position on the grid, and to be temporarily resiliently deflected by a camming action with a contacting edge of a panel with forcible downward movement of the panel to permit the panel to be removed, in the installed position a portion of the panel edge underlying the resilient element.