Food tray with integral cover

Claim 1

In a package of the class described: a. a vessel segment to contain a packaged product defined by a bottom wall and side walls integral with said bottom wall along the edges thereof, said side walls being arranged to diverge from each other away from the bottom wall, a flange integral with said side walls at their edges remote from said bottom and extending outwardly from the axis of said vessel in a plane substantially perpendicular to said axis; b. a cover segment having top wall, side walls and flange substantially as described with respect to said vessel and a hinge connecting said segments between the flange on one side of the vessel and the flange on one side of the cover and adpated to cause the flanges of vessel and cover to come into aligned registry with each other upon relative rotation of the cover about the hinge toward the vessel; c. a skirt extending from the flange of one of said segments from the outer edges thereof free of said hinge in a direction away from said segment; d. a recessed surface extending across the face of said skirt remote from said hinge providing a flute across said face and adapted to ride over the opposing portion of the vessel flange upon closure of the package; and; e. a slot across said flute adapted to receive said opposing portion of the flange of the other segment upon closure of the package and thereby provide a mechanical latch inhibiting casual opening of the package.