Food storage bag

Abstract

A collapsible bag is disclosed having a handle and a compartment attached to the handle, the compartment formed of nine panels comprising front and back trapezoidal panels, a rectangular bottom panel, and left and right triangular expansion zones, each triangular expansion zone formed by an isosceles lower triangular panel and first and second congruent, scalene triangles. The expansion zones occur below a midpoint of the height of the compartment and distributes more space near the bottom of the bag while narrowing the bag at the top of the compartment. Moreover, the distance between the top of the isosceles triangular panels when the bag is open is greater than a width of the rectangular bottom panel and less than the handle width.

1 . A flexible, collapsible bag, comprising:
 a handle having a handle width and an elongate hole extending laterally;   a compartment attached to the handle, the compartment formed of nine panels comprising front and back trapezoidal panels, a rectangular bottom panel, and left and right triangular expansion zones, each triangular expansion zone formed by an isosceles lower triangular panel and first and second congruent, scalene triangles; and   wherein the distance between the tops of the isosceles triangular panels when the bag is open is greater than a width of the rectangular bottom panel and less than a distance between respective tops of the left and right triangular expansion zones; and   wherein, when the flexible, collapsible bag is in a collapsed state, an angle β that a common edge of the first and second congruent scalene triangles forms with the edges of the adjacent isosceles triangle is less than an angle α that a centerline of the rectangular bottom panel forms with the edges of the adjacent isosceles triangle.   
     
     
         2 . The bag of  claim 1 , wherein the bag collapses when empty into a single plane where the rectangular bottom panel folds into first and second symmetric halves. 
     
     
         3 . The bag of  claim 2 , wherein the width of the rectangular bottom panel is greater than a depth of the rectangular bottom panel. 
     
     
         4 . The bag of  claim 3 , wherein the greatest width of the expansion zone falls below a midpoint of a height of the compartment. 
     
     
         5 . The bag of  claim 1  having a plane of symmetry coincident with a plane of the handle. 
     
     
         6 . The bag of  claim 1 , wherein the compartment maintains a triangular profile below the handle when in an open configuration.