Collapsible container

1. A collapsible container comprising:

a bottom portion and a side wall that define an interior, wherein the bottom portion and the side wall are made of a foldable material;

a top portion with an opening that allows access to the interior; and

a rim member connectable to the top portion and sized and shaped to extend around the perimeter of the opening,

wherein the collapsible container is positionable in an open configuration where the rim member is connected to the top portion in a manner than maintains the opening in an open position, wherein the collapsible container is positionable in a collapsed configuration where at least a portion of the rim member is disconnected from the top portion, and wherein in the collapsed configuration, the collapsible container takes on a substantially flat shape having a longest dimension less than the longest dimension of the opening when the collapsible container is in the open configuration, and

wherein the top portion comprises a flap that creates a pocket, wherein at least a portion of the rim member is contained within the pocket, wherein the pocket extends the entire perimeter around the opening, and wherein the rim member is contained within only a portion of the pocket when the collapsible container is in the collapsed configuration.

2. A collapsible container according to claim 1 wherein the rim member is the only rigid structure in the collapsible container.

3. A collapsible container according to claim 1 wherein the bottom portion and the side wall are made of water impermeable material.

4. A collapsible container according to claim 1 wherein the bottom portion and the side wall are made of water permeable material.

5. A collapsible container according to claim 1 further comprising a lid that can cover the opening when the collapsible container is in the open configuration.

6. A collapsible container according to claim 1 wherein the entire rim member is contained within the pocket when the collapsible container is in the open configuration.

7. A collapsible container according to claim 1 wherein the rim member is permanently contained within a portion of the pocket.

8. A collapsible container according to claim 1 wherein the entire rim member is removable from the pocket.

9. A collapsible container according to claim 1 wherein the side wall is cylindrical, wherein the opening is circular, and wherein the rim member is a wire in the form of a circular hoop.

10. A collapsible container according to claim 9 wherein the circular hoop is a collapsible hoop.

11. A collapsible container according to claim 10 wherein the circular hoop can be collapsed by twisting the circular hoop into a FIG. 8 and then doubled over to create a double hoop having a diameter about half the diameter of the uncollapsed circular hoop.

12. A collapsible container comprising:

a bottom portion and a side wall that define an interior, wherein the bottom portion and the side wall are made of a foldable material;

a top portion with an opening that allows access to the interior; and

a rim member connectable to the top portion and sized and shaped to extend around the perimeter of the opening,

wherein the collapsible container is positionable in an open configuration where the rim member is connected to the top portion in a manner than maintains the opening in an open position, wherein the collapsible container is positionable in a collapsed configuration where at least a portion of the rim member is disconnected from the top portion, wherein in the collapsed configuration, the collapsible container takes on a substantially flat shape having a longest dimension less than the longest dimension of the opening when the collapsible container is in the open configuration, and wherein the rim member is contained within the collapsed container when in the collapsed configuration.

13. A collapsible container according to claim 12 wherein the side wall is cylindrical, wherein the opening is circular, and wherein the rim member is a wire in the form of a circular hoop.

14. A collapsible container according to claim 13 wherein the circular hoop is a collapsible hoop.

15. A collapsible container according to claim 12 wherein the circular hoop can be collapsed by twisting the circular hoop into a FIG. 8 and then doubled over to create a double hoop having a diameter about half the diameter of the uncollapsed circular hoop.

16. A collapsible container according to claim 12 wherein the rim member is the only rigid structure in the collapsible container.

17. A method of collapsing a container, the method comprising:

providing a collapsible container comprising

a bottom portion and a side wall that define an interior, wherein the bottom portion and the side wall are made of a foldable material,

a top portion with an opening that allows access to the interior, and

a rim member connectable to the top portion and sized and shaped to extend around the perimeter of the opening;

maintaining the collapsible container in an open position by connecting the rim member to the top portion in a manner that maintains the opening in an open position;

using the container by providing an object in the interior;

disconnecting at least a portion of the rim member from the top portion;

folding the bottom portion and the side wall to collapse the collapsible container into a collapsed configuration, wherein the rim member is contained within the collapsed configuration, and wherein in the collapsed configuration, the collapsible container takes on a substantially flat shape having a longest dimension less than the longest dimension of the opening when the collapsible container is in the open configuration; and

returning the collapsible container to its open position so that it may be used again.

18. A method according to claim 17 wherein the rim member is a collapsible hoop and wherein the method comprises collapsing the collapsible hoop into a double hoop having a reduced diameter.