A receptacle comprising a flange closure, consisting of a bottom part, in particular a meal tray (12), comprising a bottom, side walls adjacent thereto as well as an edge flange (22) which surrounds the top edge thereof and is directed outwardly, and further consisting of a cover (28) as a top part consisting...http://www.google.com/patents/US4629112?utm_source=gb-gplus-sharePatent US4629112 - Receptacle with flange closure
