초록 ▼

A disposable, self-supported tray, for holding food in a microwave oven, which tray includes a paperboard center panel coated on at least one side with a conductive material and supported at the periphery and in the center by downwardly extending panels, certain of which have interlocking engagement

A disposable, self-supported tray, for holding food in a microwave oven, which tray includes a paperboard center panel coated on at least one side with a conductive material and supported at the periphery and in the center by downwardly extending panels, certain of which have interlocking engagement with each other.

대표청구항 ▼

A disposable, one-piece, self-supported tray for holding food in a microwave oven, said tray being formed from a unitary blank of dielectric, foldable sheet material, such as paperboard, and comprising: (a) a center panel having a periphery, a center portion, a plurality of side edges, at least one

A disposable, one-piece, self-supported tray for holding food in a microwave oven, said tray being formed from a unitary blank of dielectric, foldable sheet material, such as paperboard, and comprising: (a) a center panel having a periphery, a center portion, a plurality of side edges, at least one surface, and a relatively thin layer of conductive material on said one surface; (b) a plurality of side panels foldably joined to each other and to said side edges and extending downwardly therefrom for supporting said center panel at said periphery; (c) an integral supporting structure, for supporting said center panel center portion, including: (i) first and second support panels formed soley from material cut from said center panel and foldably joined thereto along intersecting fold lines; (ii) said support panels being disposed to extend downwardly from and normal to said center panel and having interlocking engagement with each other to maintain them in supporting position.