Patent ID: 6761287
Filing Date: 2004-07-13
Classification: B44D,B65D

Abstract:
A port assembly for a can with a removable lid, the port assembly adapted to allow inspection of and access to an interior of the can without removal of the lid, the port assembly comprising:a) a port in the lid; and b) a port stopper adapted to interface with the port to create a closed configuration in which contents of the can cannot escape and an open configuration that provides access to contents of the can, the port stopper having at least one portion thereof that is substantially transparent and substantially colorless to allow visual inspection of the contents of the can in the closed configuration; wherein the port comprises an opening in the lid and a port collar affixed in the opening for interfacing with the port stopper;wherein the port stopper comprises a first set of threads and the port collar comprises a second set of threads for interfacing with the first set of threads; andwherein the first set of threads is located on a bottom portion of the port stopper, the bottom portion comprising a hollow cylinder having an open end, and wherein the port collar comprises a threaded well comprising an inner tube having an outer surface, an outer tube having an inner surface, a connecting ring between the inner tube and the outer tube, and an annular region between the inner surface of the outer tube and the outer surface of the inner tube, the second set of threads being located on one of the inner surface of the outer tube or the outer surface of the inner tube.