Patent ID: 8505780

Claim:
A proppant storage vessel comprising: a container having a first end wall and a second end wall and a first side wall and a second side wall and a top wall and a bottom wall, said first and second end walls extending between opposite ends of said first and second side walls, said first and second end walls and said first and second side walls and said top and bottom walls defining an interior volume of said container; a bottom hatch formed on said bottom wall of said container, said bottom hatch movable between an open position and a closed position; a first inclined surface positioned in said interior volume, said first inclined surface extending from said first end wall toward said bottom hatch; a second inclined surface positioned in said interior volume, said second inclined surface extending from said second end wall toward said bottom hatch; a third inclined surface positioned in said interior volume, said third inclined surface extending from said first side wall toward said bottom hatch; a fourth inclined surface positioned in said interior volume, said fourth inclined surface extending from said second side wall toward said bottom hatch; a top hatch formed generally centrally on said top wall, said top hatch movable between an open position and a closed position; a first support brace affixed to said first and second end walls and extending therebetween, said first support brace extending across said interior volume of said container; and a second support brace affixed to said first and second side walls and extending therebetween, said second support brace extending across said interior volume of said container; a first support member having one end affixed to said bottom wall and extending angularly upwardly therefrom, said first support member having an opposite end affixed centrally to said first inclined surface; and a second support member having one end affixed to said bottom wall and extending angularly upwardly therefrom, said second support member having an opposite end affixed centrally to said second inclined surface.