Collapsible container
AssigneeTiddlerinc Limited
InventorPaul Cheney
Life of this patent
Estimating the term…
Abstract
A container (2) for food and/or beverage type items is at least partially defined by two or more wall portions including at least a first sidewall portion, and at least one thin or foldable wall portion (6). The container also includes a base portion and a lid (4). It is convertible between a first substantially flattened storage or transport condition and a second in-use or expanded condition by manipulation of the wall portions and/or base. The thin wall portion (6) is formed or located between a first sidewall portion and the base, and it is between 0.25 mm and 0.5 mm thick.
Claims9
A circular container for both storage and preparation of food or beverage items comprising:
- two or more wall portions of polypropylene that include a first sidewall portion and at least one thin wall portion;
- a base portion;
- and
- a lid,
- wherein the circular container is convertible between a first flattened storage or transport condition and a second in-use or expanded condition by manipulation of the two or more wall portions or said base portion,
- wherein the at least one thin wall portion is located between the first sidewall portion and the base portion,
- wherein the at least one thin wall portion is between 0.25 mm and 0.45 mm thick and the top to bottom length of the at least one thin wall portion is at least 25% greater or longer than the linear distance between the first sidewall portion and a second sidewall portion or the base portion, where the linear distance is the horizontal distance between the first sidewall portion and a second sidewall portion or the base portion when viewed in horizontal or plan cross section in said second or in-use or expanded condition such that the at least one thin wall portion forms a region of flexion that bends at one or more points on the area of the thin wall portion so the at least one thin wall portion rolls when moving the circular container between the first flattened storage or transport condition and the second in-use or expanded condition, and
- wherein the region of flexion non-linear along its length when viewed in vertical cross section in at least the first flattened storage or transport condition and the second in-use or expanded condition, and
- wherein the first sidewall portion and the at least one thin wall portion partition the inside of the circular container into two or more separate compartments for location or separation of food or beverage items when in the first flattened storage or transport condition, said two or more separate compartments concentric with the first sidewall portion, and
- wherein the container is formed by single point injection moulding which ensures the correct molecular alignment of the polymer by flowing the polymer across and not around the at least one thin or foldable wall portion;
- and
- wherein the region of the flexion acts as a spring that biases the circular container into the first flattened storage or transport condition or the second in-use or expanded condition.
Dependencies are inferred from the claim text.