Heating oil tank cover and containment vessel

Abstract

A containment vessel for a fuel tank comprises two-piece construction with a bottom-top or a left-right side orientation. These parts are rotationally molded with size and shape to receive a fuel oil tank. The two halves have annular flanges which bolt together for sealing the tank within. The top of the containment vessel provides a vented housing for enclosing fill, vent and furnace lines of the fuel oil tank. Heating tape may be provided to prevent freezing. Oil drips from degraded tank seams and from spills are captured within the vessel to prevent environmental damage.

What is claimed is:  
     
         1 . A containment vessel apparatus comprising: two-piece construction with a bottom portion adapted for receiving at least a part of a fuel oil tank within, and a top portion adapted for fitting over and engaging the bottom portion; the top and the bottom portions each providing a corresponding annular horizontally positioned mating flange providing means for mutual joining thereof for fully enclose the fuel oil tank; the top portion providing a vented housing for enclosing fill, vent and furnace lines of the fuel oil tank.  
     
     
         2 . The apparatus of  claim 1  further comprising a fuel oil tank of such size as to be received within the bottom and top portions, the fuel oil tank providing fill, vent and furnace lines positioned within the vented housing.  
     
     
         3 . The apparatus of  claim 2  further providing a means for locking the vent housing to the top portion.  
     
     
         4 . The apparatus of  claim 2  wherein the bottom portion provides access holes for legs of the fuel oil tank.  
     
     
         5 . A containment vessel apparatus comprising: a two-piece construction with a left side portion adapted for receiving at least a part of a fuel oil tank within, and a right side portion adapted for fitting over a remainder of the fuel oil tank and engaging the left side portion; the left and right portions each providing a corresponding annular vertically positioned mating flange providing means for mutual joining thereof for fully enclose the fuel oil tank; one of the left and right portions providing a vented housing for enclosing fill, vent and furnace lines of the fuel oil tank.  
     
     
         6 . The apparatus of  claim 5  further comprising a fuel oil tank of such size as to be received within the left and right side portions, the fuel oil tank providing fill, vent and furnace lines positioned within the vented housing.  
     
     
         7 . The apparatus of  claim 6  further providing a means for locking the vent housing to one of the left and right side portions.  
     
     
         8 . The apparatus of  claim 6  wherein the left and right side portions provide access holes for legs of the fuel oil tank.