Radiant energy – Supported for nonsignalling objects of irradiation – With source support
Patent
1988-07-19
1989-10-31
Berman, Jack I.
Radiant energy
Supported for nonsignalling objects of irradiation
With source support
2504531, 2504541, 2504921, 422 24, A61L 210
Patent
active
048779644
ABSTRACT:
An ultraviolet sterilizing apparatus includes a sterilization chamber defining an enclosed space and having an entrance and an exit, a roller conveyor arranged between the entrance and the exit for conveying products to be sterilized through the interior of the sterilization chamber, and a plurality of sterilizing ultraviolet lamps arranged about the path along which the products are conveyed. The apparatus is characterized in that some of the ultraviolet lamps are situated below the conveyance path, each of these ultraviolet lamps being interposed between mutually adjacent ones of the rollers in the roller conveyor and arranged far enough below the conveyance plane of the roller conveyor so as not to contact the products being conveyed. This ultraviolet lamp arrangement makes it possible to uniformly sterilize products over their entire surface without requiring that the products be turned over on the conveyor. The apparatus is further provided with auxiliary chambers each having an ultraviolet radiation shielding curtain suspended from an inlet and outlet of the apparatus to prevent ultraviolet rays from leaking out of the sterilization chamber.
REFERENCES:
patent: 2095502 (1937-10-01), Johnston
patent: 2275788 (1942-03-01), Meeker et al.
patent: 4055769 (1977-10-01), Sander
Saitou Shirou
Tanaka Yoshio
Berman Jack I.
Kureha Chemical Industry Co. Ltd.
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