Container assembly

Claim 1

IN COMBINATION, A THREE-PIECE CONTAINER ASSEMBLY FOR USE IN PREPARING, STORING, COOOKING OR SERVING FOOD COMPRISING: (A) A CONTAINER OPEN AT THE UPPER END AND TERMINATING IN A RIM; (B) AN INTERMEDIATE SNAP-ON COVER OF FLEXIBLE MATERIAL DETACHABLY ENGAGING THE OPEN UPPER END OF SAID CONTAINER IN SEALING RELATION THERETO AND INCLUDING A PERIPHERAL RIM HAVING RADIALLY INNER AND OUTER RIM WALLS CONNECTED BY A TOP RIM WALL; (C) SAID SNAP-ON COVER INCLUDING A FLAT CENTER WALL PORTION LYING RADIALLY INWARDLY OF SAID INNER RIM WALL; (D) SAID SNAP-ON COVER INCLUDING A BELLOWS-LIKE FLEXIBLE WALL PORTION OF LESS THICKNESS THAN AND CONNECTING BOTH INNER RIM WALL AND SAID FLAT CENTER WALL PORTION, ALONG SUBSTANTIALLY THE ENTIRE LENGTH OF THE RESPECTIVE PERIPHERAL THEREOF; (E) A TOP COVER MEMBER DETACHABLY INTERENGAGEABLE WITH THE UPPER SURFACE OF SAID SNAP-ON COVER MEMBER; (F) COMPLEMENTALLY FORMED MEANS ON THE TOP COVER, INTERMEDIATE SNAP-ON COVER AND ON SAID CONTAINER RIM TO MAINTAIN SAID THREE PIECES IN AN ASSEMBLED RELATIONSHIP TO FACILITATE MERCHANDISING AND STORAGE AS A UNITARY ASSEMBLY.