Food surface sanitation tunnel

• US 7,160,566 B2
• Filed: 02/07/2003
• Issued: 01/09/2007
• Est. Priority Date: 02/07/2003
• Status: Expired due to Fees

• Current Assignee: BOC, Inc.
• Original Assignee: BOC, Inc.
• Inventors: Pearsal, Charles, Fink, Ronald G, Ellis, Walter
• Primary Examiner(s): BHAT, NINA NMN
• Application Number:
  US10/248,671
• Publication Number:
  US 20040156959A1
• Time in Patent Office: 1,432 Days
• Field of Search: 426/399, 426/320, 426/235, 426/248, 422/24, 422/27
• US Class Current: 426/235
• CPC Class Codes: A23L 3/26 by irradiation without heating
• CPC Class Codes: A23L 3/266 with corona irradiation
• CPC Class Codes: A23L 3/28 with ultraviolet light
• CPC Class Codes: A23L 3/3409 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
• CPC Class Codes: A23L 3/358 Inorganic compounds

Abstract

This invention is a modular, adjustable, easy to maintain, portable or fixed food sanitation tunnel, comprising an enclosing means for subjecting food to sanitizers including UV light, ozone, hydroperoxides, superoxides and hydroxyl radicals, and a method for using the system. The enclosing means includes one or more UV radiation sources and one or more target rods located within a tunnel, such as a c-shaped shell. The UV radiation sources are preferably UV light sources that emit UV light of approximately 185 to 254 nm. The target rods are approximately up to 0–30% titanium dioxide, up to 0–30% silver and up to 0–30% copper, by weight. The system may include a mister for the efficient production of hydroxyl radicals by the UV light sources. Parts of the system are easily removable for cleaning and for maintenance. Also, in an alternative embodiment, the tunnel is located on a frame, and the frame is on wheels.

Claims

1. A method for sanitizing food comprising exposing a surface of the food within an enclosure generally simultaneously to UV light, ozone, and at least one target member for providing superoxides, hydroperoxides, and hydroxyl radicals.

2. A method for sanitizing food comprising general simultaneously exposing food to radiation, ozone, and at least one target member for providing plasma.

3. The method according to claim 2, wherein the exposing of the food occurs within an enclosure.

4. The method according to claim 2, wherein the plasma comprises a radical selected from the group consisting of a hydroperoxide, a superoxide, and a hydroxyl.

5. The method according to claim 4, wherein the hydroperoxide, superoxide and hydroxyl radicals are combined.

6. The method according to claim 2, further comprising packaging of the food.

7. The method according to claim 2, further comprising directing water mist toward the food.

8. A method for sanitizing food comprising exposing a surface of the food within an enclosure simultaneously to UV light, ozone, and at least one target member for providing a sanitizing plasma.

9. The method according to claim 8, including simultaneously sanitizing more than one side of the food surface.

10. The method according to claim 8, wherein the sanitizing plasma includes at least one of hydroperoxides, superoxides, or hydroxyl radicals.

11. The method according to claim 8, including applying a water mist to the enclosure to add moisture in the enclosure.

12. The method according to claim 11, including interacting UV light with oxygen in air to form ozone and with the moisture to form at least one of hydroxyl radicals, superoxides, hyperoxides, or hydroperoxides in the sanitizing plasma.

13. The method according to claim 11, including applying the water mist toward the food surface.