Patent ID: 8474444

Claim:
A device for attachment to a side wall of a vessel, comprising: a cylindrical element mounted to or attached to said side wall of said vessel at a first elevation above a bottom end portion of said vessel; a perforated portion attached to said cylindrical element and wrapped around the side wall of the vessel in flush contact therewith; and a body element extending from said cylindrical element, wherein said body element comprises a first end portion that is attached to or integrally molded to said cylindrical element and a second end portion which is located at a distance from said side wall, and further wherein said body element has a curved cross-section adapted to extend about a periphery of said vessel, away from said side wall, and downwardly to a second elevation above said bottom end portion of said vessel; wherein said body element includes a bottom portion connected to said second end portion; and wherein said bottom portion comprises a plurality of ventilation openings.