Food tray and process for manufacture

• US 5,655,708 A
• Filed: 10/31/1994
• Issued: 08/12/1997
• Est. Priority Date: 06/19/1992
• Status: Expired due to Fees

• Current Assignee: Linpac Plastics International Limited
• Original Assignee: Linpac Plastics International Limited
• Inventors: Grone, Horst-Ditmar
• Primary Examiner(s): Shoap, Allan N.
• Assistant Examiner(s): McDonald, Christopher J
• Application Number:
  US08/332,242
• Time in Patent Office: 1,016 Days
• Field of Search: 229/407, 220/623, 206/557, 206/204, 426/129
• US Class Current: 229/407
• CPC Class Codes: B65D 1/34 Trays or like shallow containers B65D81/3813 takes precedence
• CPC Class Codes: B65D 81/261 for draining or collecting liquids without absorbing them
• CPC Class Codes: B65D 81/262 Rigid containers having false bottoms provided with passages for draining and receiving liquids
• CPC Class Codes: B65D 81/265 the absorbent being placed beneath a false bottom

Abstract

A tray for containing fluid-exuding foods, such as meat, fish and the like, comprises a laminate having upper and lower laminae, with openings in the upper lamina. Fluid retaining cavities are formed in the lower lamina or between adjacent lamina to keep exuded liquids away from the food and out of sight of the purchaser. The upper surface of the lower lamina is embossed to form regularly shaped liquid containment cells. The openings in the upper layer are preferable aligned in accordance with a predefined pattern and in register with the cells on the lower lamina. An intermediate lamina of absorbent material and a reticulate lamina may be disposed between the upper and lower lamina.

Claims

1. A tray for liquid-exuding foods, comprising a laminate having an upper lamina and a lower lamina, each of the upper and lower laminae having opposite upper and lower surfaces, the upper lamina having a plurality of openings intersecting the upper and lower surfaces thereof and the lower lamina having a plurality of cavities formed in the upper surface thereof by a plurality of longitudinally extending walls defining a plurality of longitudinally extending channels in the lower lamina, the upper surface of the lower lamina comprising a plurality of baffles extending between adjacent walls to define liquid containment cells on the lower lamina, the longitudinally extending walls comprising a plurality of interconnected wall sections extending at predetermined angles to each other, the exterior angles of walled sections of adjacent ones of the walls being disposed opposite each other.

2. The tray in accordance with claim 1, wherein the interior angles of wall sections of adjacent walls are opposite each other and wherein the upper surface of the lower lamina further comprises raised pads disposed in the areas between opposite interior angles.

3. The tray in accordance with claim 2, wherein the walls have a predetermined height and wherein the pads have a height substantially equal to the predetermined height.

4. The tray in accordance with claim 1, wherein the baffles extend between adjacent ones of the exterior angles of adjacent walls.

5. The tray in accordance with claim 2, wherein each of the cells comprises at least one of the pads.

6. The tray in accordance with claim 2, wherein the upper lamina and the lower lamina are joined at the pads and the walls.