Containers having improved vacuum resistance

A plastic container comprising:

• a neck defining a mouth of the container;
• and
• a body comprising a plurality of horizontal ribs extending along an outer perimeter of the container, each of the plurality of horizontal ribs is located in a different horizontal plane, the plurality of horizontal ribs comprises a first rib located intermediate two complimentary-shaped indentations, the first rib comprises end portions on the corresponding horizontal plane that intersect sides of the indentations and comprises a middle portion that varies in height from the substantially horizontal plane and is between the end portions, and the first rib curves in a vertical direction such that a vertical distance from the middle portion to the mouth is different than a vertical distance from the end portions to the mouth.

A plastic container comprising:

• a neck that defines a mouth of the container;
• and
• a substantially rectangular shaped body comprising a first plurality of horizontal ribs extending along an outer perimeter of the container, each rib of the first plurality of horizontal ribs is located in a different horizontal plane, and a second plurality of horizontal ribs extending along an outer perimeter of the container, each of the second plurality of horizontal ribs is located in a different horizontal plane and located intermediate two complimentary-shaped indentations, each of the first plurality of horizontal ribs alternates in a vertical direction with each of the second plurality of horizontal ribs, each of the second plurality of ribs comprises end portions on the corresponding horizontal plane that intersect sides of the indentations and comprises a middle portion that varies in height from the substantially horizontal plane and is between the end portions, and each of the second plurality of horizontal ribs curves in a vertical direction such that a vertical distance from the middle portion to the mouth is different than a vertical distance from the end portions to the mouth.