Abstract: A two-piece long-skirted lid for ice cream containers and the like is provided in which a transparent plastic shell having a raised central web for spanning a container mouth is provided with a dependent sealing skirt defining an annular trough. A printed paper disk is coterminate with the raised web and includes dependent peripheral tabs which fit into the trough and are visible through the skirt. An inturned top curl around the top of the outer wall of the skirt holds the paper and plastic assembled without adhesive and precludes contact of the paper with the container contents.

Abstract: A closely nestable one-piece cup molded from expanded or expandable beads of polystyrene, the cup sidewall having a major portion which extends from a point which is spaced no further from the larger, open end of the cup than the desired stacking space between like cups in a stack thereof and which gradually increases in its thickness and in its angle, relative to the vertical central axis of the cup, as it proceeds inwardly and downwardly toward the bottom of the cup. Also, a mold having spaced apart complementally-shaped concave and convex molding surfaces on molding members that are reciprocatable, relative to one another, into and out of closely spaced apart molding relationship to mold such a cup from expandable or expanded beads.

Abstract: A recessed, rim-locking closure for attachment to a wide-mouth container of the type having an externally projecting curled rim or bead surrounding the open mouth thereof, such as the well-known one-piece nestable container produced from thermoplastic sheet material by a thermoforming process, the peripheral vertical wall surrounding the recessed central portion of the closure having a series of radially outwardly projecting lugs spaced apart therearound, each lug having a lower portion which is tapered upwardly and outwardly to facilitate centering of the closure on the container by mechanical closure-applicating equipment, the lugs also having a substantially vertical upper section to frictionally engage the inside of the mouth of the associated container to improve the resistance of the closure to turning relative to the container. Such a closure may be made of one-piece thermoplastic material by thermoforming a thermoplastic sheet material of a suitable composition, preferably in a female mold.

Abstract: A close nesting, single element, easy-opening tamper-proof closure for wide-mouth containers, especially externally beaded, round, nestable cup-like containers formed from paper or plastic, the closure comprising a central panel adapted to substantially span the mouth of the associated container and formed from paper, a non-shrinkable plastic material, or the like, and further comprising a frusto-conically shaped skirt formed from a double-ended blank of a plastic material which is highly oriented in the direction extending circumferentially of the closure, the overlapped ends of the blank being heat sealed or otherwise joined to one another inwardly of the outermost of the ends thereof, the inner smaller diameter of the skirt being adhesively joined to the outer periphery of the central panel, the skirt being shrinkable, upon the application of heat thereto when the closure is in place over the mouth of a filled container, to shrink into tight engagement with the mouth of the container, the outermost free en