Method and apparatus for disinfecting a product by surface...

A - Human Necessities – 61 – L

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A61L 2/07 (2006.01) A23L 3/18 (2006.01) A23L 3/30 (2006.01) A61L 2/025 (2006.01)

Patent

CA 2437783

A method and an apparatus in form of a disinfecting apparatus comprising a steam device for combatting germs on the surface of products, in particular of food products. The apparatus employs a combination of steam and ultrasound to kill germs on the surface of a product which is conveyed past the steam device. Pressurized steam is fed through a steam passage to an opening conveying the steam to a cavity, in which the steam is made to oscillate at a ultrasonic frequency. The oscillations in the steam prevent the steam from heating the products excessively, while germs presents on the surface of the products are heated and killed.

La présente invention concerne un procédé et un appareil se présentant sous forme d'un appareil de désinfection qui comprend un dispositif à vapeur éliminant les germes sur la surface de produits, plus particulièrement de produits alimentaires. L'appareil utilise une combinaison de vapeur et d'ultrasons pour détruire les germes sur la surface d'un produit qui est transporté et traverse le dispositif à vapeur. De la vapeur sous pression est envoyée par un passage pour la vapeur à une ouverture apportant la vapeur à une cavité, dans laquelle la vapeur est soumise à une oscillation à une fréquence ultrasonore. Les oscillations de la vapeur empêchent cette dernière de chauffer les produits de manière excessive alors que les germes présents sur la surface des produits sont eux, chauffés et détruits.

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