Cleanroom suspended ceiling molding having a gasket

Abstract

A wall molding for a suspended ceiling comprising a roll-formed sheet metal body having a vertical leg and horizontal leg connected at a substantially ninety-degree angle, the vertical leg having a polygonal shape creating an apex and opposite void along with a gasket projecting in a direction away from the horizontal leg wherein the gasket is adapted to create an air-tight seal between the wall molding and the wall when the wall molding is attached to the wall. The molding may also include a second gasket projecting upward from the top surface of the horizontal leg in a direction away from the vertical leg wherein the gasket is adapted to create an air-tight seal between the wall molding and the ceiling panel when a ceiling panel is laid in the grid opening.

What is claimed is: 
     
         1 . A wall molding for a suspended ceiling attached to a wall, the wall molding comprising:
 a vertical leg having
 a top end and opposite bottom end, 
 a polygonal shape creating an apex on a first surface the vertical leg and a corresponding void in a second surface opposite the first surface, and 
 a wall gasket projecting outward from the second surface; 
   a horizontal leg projecting outward from the bottom end of the vertical leg at a substantially ninety-degree angle, the horizontal leg having
 a top surface and opposite bottom surface, and 
 a terminal end opposite the bottom end; 
   wherein the gasket is adapted to create an air-tight seal between the wall molding and the wall when the wall molding is attached to the wall.   
     
     
         2 . The wall molding of  claim 1 , further comprising:
 a beam gasket projecting upward from the top surface.   
     
     
         3 . The wall molding of  claim 1 , wherein the wall gasket is a sheet, semi-circular shape, L-shape, finger, or combination thereof. 
     
     
         4 . The wall molding of  claim 3 , wherein the wall gasket is a combination of a sheet and a finger. 
     
     
         5 . The wall molding of  claim 1 , wherein the void closer to the bottom end than the top end of the vertical leg. 
     
     
         6 . The wall molding of  claim 1 , wherein the wall gasket is located within the void. 
     
     
         7 . The wall molding of  claim 1 , wherein the vertical leg and horizontal leg are formed of sheet metal. 
     
     
         8 . The wall molding of  claim 1 , wherein the wall gasket is a polymer. 
     
     
         9 . The wall molding of  claim 2 , wherein the beam gasket projects in a direction away from the vertical leg. 
     
     
         10 . The wall molding of  claim 2 , wherein the beam gasket is a polymer. 
     
     
         11 . A ceiling system for a cleanroom, the ceiling system comprising:
 a beam attached to a wall molding, the wall molding comprising:
 a vertical leg having 
 a top end and opposite bottom end, 
 a polygonal shape creating an apex on a first surface the vertical leg and a corresponding void in a second surface opposite the first surface, and 
 a wall gasket projecting outward from the second surface; 
 a horizontal leg projecting outward from the bottom end of the vertical leg at a substantially ninety-degree angle, the horizontal leg having 
 a top surface and opposite bottom surface, and 
 a terminal end opposite the bottom end; 
 wherein the gasket is adapted to create an air-tight seal between the wall molding and the wall when the wall molding is attached to the wall. 
   
     
     
         12 . The wall molding of  claim 11 , further comprising:
 a beam gasket projecting upward from the top surface.   
     
     
         13 . The wall molding of  claim 11 , wherein the wall gasket is a sheet, semi-circular shape, L-shape, finger, or combination thereof. 
     
     
         14 . The wall molding of  claim 13 , wherein the wall gasket is a combination of a sheet and a finger. 
     
     
         15 . The wall molding of  claim 11 , wherein the void closer to the bottom end than the top end of the vertical leg. 
     
     
         16 . The wall molding of  claim 11 , wherein the wall gasket is located within the void. 
     
     
         17 . The wall molding of  claim 11 , wherein the vertical leg and horizontal leg are formed of sheet metal. 
     
     
         18 . The wall molding of  claim 11 , wherein the wall gasket is a polymer. 
     
     
         19 . The wall molding of  claim 12 , wherein the beam gasket projects in a direction away from the vertical leg. 
     
     
         20 . The wall molding of  claim 12 , wherein the beam gasket is a polymer.