Abstract: A wall panel hanging system according to the present invention comprises a top hanging track horizontally secured to a wall adjacent the junction of the wall and ceiling which cooperates with clips attached to a panel and by means of which the panel is hung from the top hanging track. The top hanging track has a forwardly facing shank receiving portion at the upper edge thereof and a forwardly extending shoulder therebelow. The track further includes a flange area for receiving fasteners and by means of which the track is secured to a wall. Each clip includes a top shank sized for close reception in said shank receiving portion and a clip shoulder spaced below said top shank and cooperating with said forwardly extending shoulder when the shank is received in said top hanging track. The cooperating shoulders effect positioning of the clip in the track such that the clip shoulder is above and in support engagement with the forwardly facing shoulder of the top hanging track.

Abstract: An improved ceiling panel for use in concealed suspension is disclosed which includes framing a panel body member on the sides and rear face thereof in a manner that the lower surface of the panel is determined by the metal framing members. These members are preferrably extruded aluminum and hence the accuracy thereof and hence the accuracy of the lower surface of the panel can be maintained in a closer tolerance range. In addition the framing members include an inwardly directed flange which preferrably is held by an adhesive within an appropriately located kerfed recess in the edge of the body member. This structure serves to stiffen the panel and reduce deflection thereby providing a ceiling system of substantially improved quality. Height variations in ceiling systems are easily recognized and the present disclosure teaches a system of high quality while providing a system which is easy to install and has the advantages of ready access to the area above the ceiling.

Abstract: According to the present invention, a new suspended ceiling system is possible of the type having a plurality of removable panels which are supported below a grid network. The grid network comprises structural elements interconnected by junction members with the cells of the grid network sized to receive a panel about the periphery thereof. These structural members cooperate with framed panel members to accurately align adjacent panels and position them at a certain height below the grid network. Access to the area above the panels is easily obtained by removal of any of the panel members. Each panel is urged into abutting contact with the grid network to provide a seal therewith such that the area above the ceiling may be used as a return air plenum. The particular frame member for the panels facilitates mechanical connection about and to the body member of the panel and also simplifies removal of the panel.