Drain guard assembly and system

Abstract

A roof drain assembly includes a drain body, a gravel guard, and a cover. The drain body includes an inlet, an outlet, and a conduit between said inlet and outlet. The gravel guard includes a frame having a top opening, a bottom opening, a plurality of castellations separated from each other by a plurality of gaps. The gravel guard may be removably coupled to the drain body or integral with the drain body. The cover is configured to be removably coupled to a top surface of the gravel guard (e.g., at least a portion of the plurality of castellations). The cover includes a plurality of openings configured to allow fluid to flow therethrough into the drain body.

What is claimed is: 
     
         1 . A roof drain assembly comprising:
 a drain body having an inlet, an outlet, and a conduit between said inlet and outlet;   a gravel guard having a frame having a top opening, a bottom opening, a plurality of castellations separated from each other by a plurality of gaps, wherein the gravel guard is configured to be removably coupled to the drain body; and   a cover configured to be removably coupled to a top surface of the gravel guard, the cover including a plurality of openings configured to allow fluid to flow therethrough into the drain body.   
     
     
         2 . The roof drain assembly of  claim 1 , wherein the cover is configured to be removably coupled to a top surface of at least a portion of the plurality of castellations. 
     
     
         3 . The roof drain assembly of  claim 1 , wherein the cover includes a cover alignment key and wherein gravel guard includes a guard alignment key configured to engage with the cover alignment key to align the cover relative to the gravel guard. 
     
     
         4 . The roof drain assembly of  claim 3 , wherein the cover includes a cover flange including the cover alignment key and wherein at least one of the plurality of castellations includes the guard alignment key. 
     
     
         5 . The roof drain assembly of  claim 4 , wherein the cover alignment key and the guard alignment key include a protrusion configured to be received in a recess. 
     
     
         6 . The roof drain assembly of  claim 1 , wherein at least one of the plurality of castellations includes a cover connector configured to removably secure the gravel guard to the cover. 
     
     
         7 . The roof drain assembly of  claim 1 , wherein substantially the entire cover is disposed above the top surface of the gravel guard. 
     
     
         8 . The roof drain assembly of  claim 1 , wherein the cover is removably secured to the gravel guard using one or more biased tabs. 
     
     
         9 . The roof drain assembly of  claim 8 , wherein the cover includes a cover flange and wherein the biased tab engages the cover flange. 
     
     
         10 . The roof drain assembly of  claim 8 , wherein the biased tab is configured to apply a compressive for that urges the cover against the gravel guard. 
     
     
         11 . The roof drain assembly of  claim 8 , wherein the biased tab is secured to one of the plurality of castellations. 
     
     
         12 . The roof drain assembly of  claim 11 , wherein the biased tab is secured to a threaded aperture extending through the top surface of the one of the plurality of castellations. 
     
     
         13 . The roof drain assembly of  claim 8 , wherein the biased tab is configured to rotate between a secured position in which the cover is secured to the gravel guard and a release position in which the cover is removable from the gravel guard. 
     
     
         14 . The roof drain assembly of  claim 1 , further comprising a web coupling the plurality of castellations together. 
     
     
         15 . A roof drain assembly comprising:
 a drain body having an inlet, an outlet, and a conduit between said inlet and outlet;   a gravel guard having a frame having a top opening, a bottom opening, a plurality of castellations separated from each other by a plurality of gaps, wherein the drain body and the gravel guard are a single part; and   a cover configured to be removably coupled to a top surface of the gravel guard, the cover including a plurality of openings configured to allow fluid to flow therethrough into the drain body.   
     
     
         16 . The roof drain assembly of  claim 15 , wherein the cover is configured to be removably coupled to a top surface of at least a portion of the plurality of castellations. 
     
     
         17 . The roof drain assembly of  claim 15 , wherein the cover includes a cover alignment key and wherein gravel guard includes a guard alignment key configured to engage with the cover alignment key to align the cover relative to the gravel guard. 
     
     
         18 . The roof drain assembly of  claim 17 , wherein the cover includes a cover flange including the cover alignment key and wherein at least one of the plurality of castellations includes the guard alignment key. 
     
     
         19 . The roof drain assembly of  claim 15 , wherein the cover is removably secured to the gravel guard using one or more biased tabs. 
     
     
         20 . The roof drain assembly of  claim 19 , wherein the biased tab is configured to move between a secured position in which the cover is secured to the gravel guard and a release position in which the cover is removable from the gravel guard, and wherein the biased tab is configured to apply a compressive for that urges the cover against the gravel guard.