Safety grate cover for a swimming pool

Abstract

A grate cover in combination with a swimming pool being installed in a recess in the top of a sump. The grate is formed of an upper and a lower section. Each of the upper and the lower section exhibit four quadrants therein. The upper section has dome-shaped configuration and has square shaped interstices therein. Each of the quadrants of the upper section has a concave curvature therein at a transition between the upper and the lower section. Each of the quadrants of the lower section have two concave curvatures therein. One curvature extends in a first direction from the upper section toward an outside edge of grate cover. The other second concave curvature extends in a direction which is normal to the first direction. This way, the forceful suction within the sump cannot obtain enough force to suction the skin of a human onto the grate cover to cause any injuries. The curvatures in the top of the grate cover will always induce a lateral flow under a human body no matter how much of the grate is covered by the body.

1 . A pool grate cover in combination with a sump, said grate cover being installed in a top recess of said sump, said grate cover having walls forming a multiple of interstices therein, said grate cover has an upper and a lower section, each of said upper and lower sections having four quadrants, the quadrants of said upper section forming a dome-shaped configuration and having a concave curvature at a transition between said upper section and said lower section, each quadrant of said lower section having a first concave curvature extending in a direction toward an outside of said grate cover. 
   
   
       2 . The pool grate cover of  claim 1 , wherein said interstices of said upper section are of a square configuration. 
   
   
       3 . The pool grate cover of  claim 1  including a flat area on top of said upper section for the reception of information with regard to the specification of said pool grate cover. 
   
   
       4 . The pool grate cover of  claim 1 , wherein said lower section has a further second concave curvature which is normal to said first curvature. 
   
   
       5 . The pool grate cover of  claim 1 , wherein said lower section has interstices of a rectangular configuration. 
   
   
       6 . The pool grate cover of  claim 1 , wherein said walls forming said interstices have reduction ribs therein to limit a contact with the skin of human making contact with said grate cover. 
   
   
       7 . The pool grate cover of  claim 1 , wherein said interstices have a dimension between 7 mm to 11 mm.