Patent ID: 8627987

Claim:
A container comprising: a base surrounded by substantially rigid upstanding outer sidewalls terminating at an upper lip for receiving a lid, the base movably held within the outer sidewalls to move upward within the outer sidewalls and engaging with an inner surface of the outer sidewalls at a plurality of different selected heights to retain the base at the selected heights as the base moves upward; and inner collapsible sidewalls having an upper end elevationally fixed with respect to the upper lip and a lower end elevationally movable with but separate from the base so the base may push upward on the inner collapsible sidewall to collapse the inner collapsible sidewalls wherein when the base is fully downward, an inner volume defined by a space within the inner collapsible sidewalls is a preponderance of the volume defined by the space between the outer sidewalls and greater than a volume between the inner collapsible sidewalls and the outer sidewalls and wherein the space between the inner collapsible sidewalls and the outer sidewall is substantially blocked from access at the upper lip within a portion receiving the lid.