ApplicationNo. 497789 filed on 08/15/1974
US Classes:99/451, ELECTRIC, RADIANT OR VIBRATIONAL TREATING MEANS219/700, Conveyor219/725, Cookware (e.g., vessel, utensil, etc.)426/234, TREATMENT OF PACKAGED PRODUCT BY ELECTRICAL OR WAVE ENERGY426/412, Heat treatment of encased food99/443C, Conveyor99/470, With sequential heating and cooling99/483NON-COOKING HEAT TREATMENT OF FOOD
ExaminersPrimary: Wilhite, Billy J.
Assistant: Niegowski, James A.
Attorney, Agent or Firm
AbstractAn apparatus for sterilizing food packaged in flexible pouches in a contius process employing microwaves for heating the food within the sealed flexible pouches to sterilizing temperatures. The pouches of food are conveyed thru the apparatus between a pair of conveyor belts which are permeable to microwaves and which comprise a layer of thermal insulation which is also permeable to microwaves. The pouches are also permeable to microwaves. The apparatus is pressurized to prevent bursting of the flexible pouches at the high sterilizing temperatures attained.