Patent attributes
Disclosed is an expanded polystyrene cooler having a body, a lid and a lid locking mechanism, said lid locking mechanism including a transversely-extending ridge near the perimeter of the underside surface of the lid, with the ridge surrounding the majority of said underside surface. There are at least two opposed flanges on the underside surface having extended portions extending towards the edge of the lid, as well as at least two horizontal channels on the inner surface of the body, each channel including an opening at one end facing the flanges and configured to receive one of the flanges and including a section having an extension towards the inside of the body, said section configured to rest upon the flange extended portion and lock the lid with the body, when the flange is positioned below the extension, whereby the lid is in place atop the cooler body.
