Patent ID: 8809817

Claim:
An apparatus for sterilization of a fluid, comprising: a plurality of fluid ducts; a plurality of cylindrical rods; a movement rod; and a shielding enclosure; wherein the fluid ducts conduct the fluid into and out of an upper portion of the shielding enclosure of the apparatus allowing fluid to flow through an upper region of the shielding enclosure wherein it may be sterilized by radiation, wherein the cylindrical rods are in a fixed arrangement axially around and parallel to the movement rod and emit radiation; wherein the fixed rod arrangement is movable along vertical axis; wherein the movement rod directs movement of the fixed rod arrangement along the vertical movement axis between a closed position where all radiation-emitting cylindrical rods are in a position below the upper region of the shielding enclosure through which fluid flows, and an open position where at least a portion of the radiation-emitting cylindrical rods are in a vertical position within the upper region of the shielding enclosure such that fluid passing through the upper region of the shielding enclosure is subjected to radiation from the cylindrical rods; wherein further vertical movement of the cylindrical rods while in the open position may expose the fluid to more or less radiation based on how much of the vertical extent of the cylindrical rods is present within the upper region of the shielding enclosure, thereby regulating radiation emission dosage received by fluid passing through the upper portion of the shielding enclosure; and wherein the shielding enclosure fully encloses the apparatus and prevents radiation contamination from leaking during operation.