Patent ID: 8007016

Claim:
In combination, a latch assembly, a cover, a grease interceptor with upwardly extending walls, and an extension of said grease interceptor walls, said latch assembly adapted to releasably secure said cover onto said extension without the use of a tool, said extension being attached to a top edge of the upwardly extending walls of said grease interceptor in a watertight manner, said extension having a wall for extending a height of said grease interceptor walls, the latch assembly comprising: a catch member secured to said extension transverse to said wall of said extension at an upper end of said wall of said extension; and a latch member pivotally mounted to said cover adjacent an edge of said cover and positioned to register with said catch member; said latch member having a hook portion and a lever portion, wherein pivoting said lever portion when said cover is positioned on said extension causes said hook portion to engage and disengage with said catch member; wherein said extension comprises at least one collar extension, wherein said collar extension is comprised of at least two parts joined together and further comprising a sealing compound disposed between said at least two parts such that the two parts are joined together to be watertight.