| 摘要 |
A food tray delivery system is provided having an upper surface, at least one food retention area, and a cover. The food retention area has a food retention area upper surface and a food retention area sidewall extending generally upwardly from the food retention area upper surface. The food retention area upper surface is spaced a distance below the upper surface and has a peripheral edge. The upper surface has a rib projecting upwardly adjacent the upper surface, with the rib above the upper surface having a width of less than 2 mm and a height of less than 2 mm and with the cover being secured to the upwardly projecting rib, preferably at its upper surface. In one embodiment of the invention, an intermediate raised area is positioned between the upper surface and the rib above the upper surface. The food tray delivery system preferably includes a plurality of food retention areas, with each of the retention areas having a respective food retention area sidewall separating the food retention areas from one another. Preferably, the rib above the upper surface has a width of less than 1 mm and a height of less than 1.5 mm. More preferably, the rib has a width of less than 1 mm and a height in the range of between 0.5-1.5 mm. In the preferred embodiment of the invention, the rib above the upper surface is positioned intermediate the upper surface peripheral edge and all the food retention areas. More preferably, the rib above the upper surface is also positioned intermediate at least two food retention areas. Most preferably, an upwardly extending rib extends around each food retention area.
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