Collapsible container for holding foodstuffs, and methods of using same

• US 6,182,890 B1
• Filed: 09/10/1999
• Issued: 02/06/2001
• Est. Priority Date: 09/10/1999
• Status: Expired due to Fees

• Current Assignee: Andrew J. Sattler, Gregory A. Dimitroff
• Original Assignee: Andrew J. Sattler, Gregory A. Dimitroff
• Inventors: Sattler, Andrew J., Dimitroff, Gregory A.
• Primary Examiner(s): GEHMAN, BRYON P
• Application Number:
  US09/393,843
• Time in Patent Office: 515 Days
• Field of Search: 229/104, 229/117.03, 229/117.05, 229/117.06, 229/400, 229/938, 206/541, 220/23.83
• US Class Current: 229/400
• CPC Class Codes: A45F 2003/205 Collapsible or foldable cups
• CPC Class Codes: B65D 5/3685 by folding the blank to U-shape to form the base and opposite sides, the remaining sides being formed by extensions of these opposite sides
• CPC Class Codes: B65D 5/48002 integral
• CPC Class Codes: B65D 5/48024 inserted
• CPC Class Codes: B65D 81/3205 Separate rigid or semi-rigid containers joined to each other at their external surfaces B65D81/3288 takes precedence

Abstract

A collapsible, disposable food container includes a main body which is selectively adjustable between an operative, open position and a collapsed, flat position thereof. The container is constructed from a unitary piece of flat stock material folded to define front, back, side, and bottom walls. The container includes a main body having a bottom portion which is shaped substantially as a truncated cone, when the container is in its operative position, such that the bottom portion may be inserted in and stably engage the walls of a circular opening, such as a vehicle cup holder. Most preferably, the lower portion of the main body fits within a circular area 2.75 inches in diameter. In a preferred embodiment of the invention, each side wall includes an indentable gripping brace region, intermediate of upper and lower portions of the side wall, which can be flexed inwardly of the upper and lower portions of the side wall, when inwardly directed pressure is applied thereto. It is preferable that the indentable gripping brace regions be substantially football shaped. In an optional embodiment of the invention, the container further includes a secondary, body integrally formed with the main body, for holding auxiliary foodstuffs such as condiments. Where used, the secondary body defines a pocket connected to one of the front, back or side walls of the main body.

Claims

1. A collapsible, disposable food container, comprising a main body;

said main body being selectively adjustable between an operative, open position and a collapsed, flat position;

said main body being constructed from a unitary piece of flat stock material folded to define a front wall, a back wall, a pair of opposed side walls, and a bottom wall,

wherein each of said side walls includes an upper portion, a middle portion and a lower portion, said middle portion of each side wall comprising an indentable gripping brace region;

wherein said front wall has a pair of opposed medial arcuate cutouts formed therein for supportively reinforcing the indentable gripping brace regions of the side walls; and

wherein a lower portion of said main body is tapered, such that said container may be inserted in, and stably engage the walls of a circular opening, when said main body is in said operative position.

2. A collapsible food container as recited in claim 1, wherein said main body lower portion fits within a circular area in a range of 2.5 to 3 inches in diameter.

3. A collapsible food container as recited in claim 1, wherein each of said side walls includes a support leg which extends below said bottom wall when said main body is in its open position, for stably supporting said container on a flat surface.

4. A collapsible food container as recited in claim 3, wherein said container further includes overlapping panels extending from said side walls, respectively, and connected to portions of at least one of said front and back walls in an overlapping manner;

said overlapping panels also having support legs extending below said bottom wall to provide additional support for said container on a flat surface.

5. A collapsible food container as recited in claim 1, wherein said bottom wall includes:

a front section; and

a rear section separated from said front section by a score line along which said bottom wall is collapsible;

said front and rear sections of the bottom wall being non-symmetric to each other.

6. A collapsible food container as recited in claim 5, wherein the distance between said back wall and said score line along said bottom wall is greater than the distance between said front wall and said score line along said bottom wall for further increasing stability of the container.

7. A collapsible, disposable food container, comprising:

a main body;

said main body being selectively adjustable between an operative, open position and a collapsed, flat position;

said main body being constructed of a unitary piece of flat stock material folded to define a front wall, a back wall, a pair of opposed side walls, and a bottom wall;

wherein each side wall includes an indentable gripping brace region, intermediate of upper and lower portions of the side wall;

said indentable gripping brace region flexing inwardly of the upper and lower portions of the side wall when inwardly directed pressure is applied thereto.

8. A collapsible food container as recited in claim 7, wherein each of said indentable gripping brace regions includes first and second convex side edges which intersect one another to define first and second end points.

9. A collapsible food container as recited in claim 7, wherein the indentable gripping brace regions and the lower portion of said main body fit within a circular area 2.75 inches in diameter.

10. A method of using a disposable container for foodstuffs, comprising the steps of:

a) pressing upwardly on a bottom wall of the container to bow it upwardly and form it into an outwardly concave shape;

b) pressing inwardly on two indentable gripping brace regions formed medially in opposite side walls of the container in a manner such that said gripping brace regions align with, and are reinforcingly supported by, opposed arcuate medial cutouts formed in a wall of the container which is substantially transverse to the side walls when the container is in an open position thereof;

whereby the gripping brace regions temporarily and disengagably lock the container in said open position.

11. The method of claim 10, wherein each of the gripping brace regions of the container includes first and second convex side edges which intersect one another to define first and second end points.