Patent ID: 6029413
Filing Date: 2000-02-29
Classification: E04B,Y10S

Abstract:
A support frame in combination with for a dropped ceiling formed of a plurality of individual ceiling panels, comprising:a plurality of elongated primary rails disposed substantially parallel to one another and having upper and lower faces, forward and rearward ends, and opposing sides;a plurality of elongated secondary rails disposed substantially parallel to one another and supported transversely between a pair of primary rails to form a grid system with a plurality of openings, said secondary rails each including opposing first and second ends, upper and lower faces and opposing sides;at least one ceiling panel having opposite side edges and opposing end edges positioned in an opening, with the end edges supported on a pair of primary rails and the side edges supported on a pair of secondary rails; andeach primary rail having an elongated support member removably connected to the upper face thereof and extending the length thereof, for suspending the rail from a ceiling;said secondary rails have a ridge on the upper face thereof with opposing ends projecting beyond the ends of the secondary rails, the secondary rail ends being removably connected to the primary rail support members to suspend and support the secondary rails.