Patent ID: 7032773
Filing Date: 2006-04-25
Classification: B65D

Abstract:
1. A container having a dome portion with a substantially planar central portion and a sidewall extending from the central portion of the dome and transitioning to a rim wherein the rim has an interlockable rim structure defined about the periphery of the container in a rim plane, said interlockable rim structure having at least one radially undercut male ridge section and at least one radially undercut female groove section defined therein, as well as a pair of arculate undercut transition sections therebetween, wherein said ridge section and said groove section have generally identical U-shapes and said radially undercut male ridge and radially undercut female groove sections being configured such that the radially undercut male ridge and radially undercut female groove sections on a container having a substantially identical interlockable rim structure will seal with interpenetrating resilient engagement extending substantially entirely around the periphery of said container, the radial undercuts on said ridges and grooves being configured to urge the grooves and ridges on containers having a substantially identical interlockable rim structure into sealing radial engagement and wherein the arculate undercut transition sections are configured such that the arculate undercut transition sections on a container having a substantially identical rim structure will urge the transition sections into virtually sealing engagement when containers with like rim structures are joined to form a closed container.