Patent ID: 7316243

Claim:
A fluid delivery system, comprising: a fluid storage vessel; a first pipe work loop; said fluid storage vessel being in fluid communication with said first pipe work loop; said first pipe work loop including a first pump which urges fluid to flow in a first direction through said first pipe work loop at a first pressure and which follows a path of travel that returns to said fluid storage vessel; at least one pipe work branch; said fluid storage vessel being in fluid communication with said at least one pipe work branch; said pipe work branch including a second pump which urges fluid to flow through said pipe work branch at a second pressure downstream of said second pump; a branch manifold positioned in said pipe work branch downstream of said second pump; said branch manifold having a fluid inlet and at least one fluid outlet; at least a first offtake positioned downstream of said branch manifold; at least a first hose providing fluid communication between at least a first fluid outlet of said branch manifold and said at least a first offtake from which fluid can be drawn from the system; a return manifold in said first pipe work loop, downstream of said first pump, said return manifold having a fluid inlet and at least one fluid outlet; at least a second hose providing fluid communication between said first fluid outlet of said return manifold and said at least one offtake; whereby fluid flows in said first direction through the return manifold and is returned to the fluid storage vessel when all of said offtakes are closed; whereby opening of at least one offtake opens said system to atmospheric pressure; whereby fluid flowing in said first direction from said at least one offtake to said return manifold is made to flow in a second direction opposite to said first direction when said at least one offtake is opened; whereby said at least one offtake is supplied with fluid from said return manifold and said branch manifold when said fluid flow is reversed; whereby said system delivers sterile liquid to at least one remote location downstream from said at least one offtake while maintaining a continuous flow through the system to inhibit bacterial growth; and whereby said system has two fluid-carrying circuits that simultaneously deliver water from said fluid storage vessel to at least one offtake when at least one offtake is open and that keep the water circulating when all offtakes are closed, said constant circulation inhibiting bacterial growth in the absence of disinfectants and elevated fluid temperatures.