Method and apparatus for sterilizing cartons

Details Method and apparatus for sterilizing cartons Method and apparatus for sterilizing cartons

B - Operations, Transporting

65

B

B65B 55/08 (2006.01) A23L 3/28 (2006.01) A61L 9/20 (2006.01)

Patent

CA 2107033

ABSTRACT An ultraviolet (UV) sterilization system for food cartons is disclosed. An elongated UV lamp (6) is mounted in a housing (12). A parabolic cylinder reflector (52) is mounted in the housing with the focus of the reflector coinciding with the axis of the arc (68) in the UV lamp. The shape of the parabolic reflector directs radiation from the lamp into cartons positioned on a conveyor below the lamp. The axis of the arc is parallel to the direction of movement of the cartons on the conveyor. The front surface of the reflector also absorbs heat from the lamp and heat is removed from the reflector (52) by circulating air (Fig. 4) over the back surface of the reflector.

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