Abstract: A flexible paper microwave package in the form of an easily expandable, nontrapping bag (18) is disclosed including a bottom wall (20) and a top wall (22) interconnected together adjacent their circular outer peripheries (20a, 22a) by first and second interconnection portions (26a, 26b). In one preferred form, the top wall (22) is formed from a first portion (22d) having an oval shaped access opening closed by an oval shaped closure portion (22e) interconnected by a seal (40) to the first portion (22d). The bottom and top walls (20, 22) expand into an opposing double domed shape as the food product is being popped, puffed, or expanded in the microwave oven. This domed shape of the bottom wall (22) keeps the food product huddled closer together and enhances the bag (18) to rock to maximize gravimetric separation.

Abstract: A flexible paper microwave package in the form of an easily expandable, nontrapping bag (18) is disclosed including a bottom wall (20) and a top wall (22) interconnected together adjacent their circular outer peripheries (20a, 22a) by first and second interconnection portions (26a, 26b). In one preferred form, the top wall (22) is formed from a first portion (22d) having an oval shaped access opening closed by an oval shaped closure portion (22e) interconnected by a seal (40) to the first portion (22d). The bottom and top walls (20, 22) expand into an opposing double domed shape as the food product is being popped, puffed, or expanded in the microwave oven. This domed shape of the bottom wall (22) keeps the food product huddled closer together and enhances the bag (18) to rock to maximize gravimetric separation.

Abstract: A flexible paper microwave package in the form of an easily expandable, nontrapping bag (18) is disclosed including a bottom wall (20) and a top wall (22) interconnected together adjacent their circular outer peripheries (20a, 22a) by first and second interconnection portions (26a, 26b). In one preferred form, the top wall (22) is formed from a first portion (22d) having an oval shaped access opening closed by an oval shaped closure portion (22e) interconnected by a seal (40) to the first portion (22d). The bottom and top walls (20, 22) expand into an opposing double domed shape as the food product is being popped, puffed, or expanded in the microwave oven. This domed shape of the bottom wall (20) keeps the food product huddled closer together and enhances the bag (18) to rock to maximize gravimetric separation.

Abstract: A collapsible, tubular carton (12) is disclosed having a non-linear fold line between the side edges (20) of the front panel (18) and the second side panel (32) which are planar in the collapsed condition of the carton (12). The fold line extends in a non-linear manner between top and bottom locations (72, 74) at the top edges (48, 68) and the bottom edges (40, 44) of the front and side panels (18, 32). In the preferred form, the fold line includes first and second, arcuate portions (82, 84) in the form of a sine curve extending from and on opposite sides of a linear line (76) extending between the top and bottom locations (72, 74). In its erect condition in the most preferred form, the carton (12) has a right parallelepiped shape, with the front and second side panels (18, 32) forming two of the sides of the parallelepiped shape.

Abstract: A pan (10) is formed from a single blank (12) of plastic-coated paperboard and is foldable between a three-dimensional, erect condition and a flat condition. In the flat condition, first and second isosceles trapezoid-shaped side panels (20) are folded about the side edges (18) of a bottom panel (14) to overlie the bottom panel (14) and with their upper edges (22) abutting. Additionally, in the flat condition, first and second triangular panels (34) are folded about the side edges (32) of end panels (28) to overlie the end panels (28). The end panels (28) are in the shape of isosceles trapezoids and are integrally connected to the opposite end edges (16) of the bottom panel (14) and extend continuously therefrom in the flat condition. Attachment panels (38) are foldable about the outer edges (36) of the triangular panels (34) and are secured to the side panels (20) with the side edges (24) of the side panels (20) abutting with and being foldable with the outer edges (36) of the triangular panels (34).