Patent ID: 8328036
Filing Date: 2012-12-11
Classification: B65D

Abstract:
1. An interference-fit overcap for engaging a radially outwardly protruding rim of a container having a removably attached membrane, wherein the container defines an opening encircled by an inner wall of the container, the overcap comprising: a top panel having a periphery; a skirt extending from the periphery of the top panel to a distal end such that the skirt defines a first inside surface axially spaced from the top panel proximate the distal end of the skirt and defines a second inside surface axially positioned between the first inside surface and the top panel, wherein the first inside surface is diametrically dimensioned to produce an interference-fit with the membrane and rim and the second inside surface is diametrically dimensioned to produce an interference-fit with the rim alone; a first rib projecting inwardly from the skirt and axially located between the first inside surface of the skirt and the distal end of the skirt; a second rib projecting inwardly from the skirt and axially located between the second inside surface and the first inside surface; and a circumferential ring extending from the top panel in a same direction as the skirt extends and located radially inward of the skirt, wherein the circumferential ring defines an outside surface on a radially outermost portion of the circumferential ring; wherein the first rib engages beneath the rim of the container to resist detachment of the overcap when the membrane is attached and the second rib engages beneath the rim of the container to resist detachment of the overcap when the membrane is not attached; wherein the outside surface of the circumferential ring is diametrically dimensioned to produce an interference-fit with the inner wall of the container when the second rib engages beneath the rim of the container, and wherein the circumferential ring comprises a distal surface opposite the top panel and axially positioned to engage the membrane when the first rib engages beneath the rim of the container, such engagement of the circumferential ring with the membrane providing resistance to downward movement of the skirt that would cause the second rib to engage beneath the rim of the container.