Systems and methods for providing compostable food containers which preserve the quality of a food product for an extended duration of time, and which optionally allow for cooking of the food product therein. In some implementations, the food containers are sturdy, stackable, insulating, and require minimal or no manual labor to assemble. In some implementations, the food container includes a base and a cover which cooperate to form a closed chamber for supporting, protecting, insulating and optionally cooking a food product, such as a pizza. The base and cover may each be formed of a single layer of material including, but not limited to, molded sugarcane fiber (bagasse), molded wood fiber, molded bamboo fiber, molded paper or plastic.

A packaging box is provided, which comprising a box body with a top opening and an openable cover connected at a top of the box body. The box body comprises a bottom wall and a side wall connected to a peripheral edge of the bottom wall, and a top of the side wall forms an arc top edge folding outward. The openable cover further comprises a top wall and a fastening part connected to a peripheral edge of the top wall. A convex rib is formed on the fastening part which matches with the arc top edge. The convex rib blocks at a lower edge of the fastening part. A concave recess is respectively arranged on opposite sides of the side wall. The sealing performance as well as the strength of the packaging box is effectively improved, while the structure of the packaging box is convenient for operation.

A sheet metal lid has a rim portion removably secured and sealed to a container and the lid includes a vent button having a top wall portion surrounded by a side wall portion and an outwardly projecting flange portion. The flange portion of the button has a short arcuate score or shear line extending substantially into the sheet metal, and additional score lines extend into the flange portion at lesser depths to protect a coating on the inner surface of the lid. A resilient sealant material may be bonded to the inner surface of the vent button, and the opposing sheet metal portions of the score line form a small gap for releasing a vacuum or pressure from the container in response to a controlled downward pressure on the top wall portion of the vent button.

The container with a lid and threaded closure mechanism includes a receptacle having a mouth surrounded by a thread, a lid, a sealing ring and a closure mechanism formed by a disc with a hollow interior and a perimetral tubular skirt provided with an engagement configuration complementary to the thread of the receptacle. The closure mechanism surrounds the lid and holds it against the mouth of the receptacle by means of a threaded attachment between the engagement configuration of the closure mechanism and the thread of the receptacle, assuring proper hermetic closure of the lid with the receptacle in cooperation with the sealing ring. The lid and the closure mechanism have mutually engaging elements with a complementary non-circular geometry and size, with both elements being tightly fitted preventing relative rotation of the closure mechanism with respect to the lid.

A chip and dip container has a dip bowl that couples to a dip bowl lid, and the dip bowl has a circular, vertically-extending protrusion that extends from a bottom surface of the dip bowl. Additionally, the chip and dip container has a chip bowl that couples to a chip bowl lid, and the chip bowl has a vertically-extending, circular wall centrally located on a floor of the chip bowl and forming a first opening, the first opening configured and sized to secure the vertically-extending protrusion thereby limiting movement of the dip bowl when in transport or when stored.

A sheet metal lid has a rim portion removably secured and sealed to a container and the lid includes a vent button having a top wall portion surrounded by a side wall portion and an outwardly projecting flange portion. The flange portion of the button has a short arcuate score or shear line extending substantially into the sheet metal, and additional score lines extend into the flange portion at lesser depths to protect a coating on the inner surface of the lid. A resilient sealant material may be bonded to the inner surface of the vent button, and the opposing sheet metal portions of the score line form a small gap for releasing a vacuum or pressure from the container in response to a controlled downward pressure on the top wall portion of the vent button.

An expandable bowl has an open top and a plurality of configuration changing side members connecting the open top to a base member. The configuration changing side members are designed to allow a user to pull the base member to changing the side members from a collapsed configuration to an expanded configuration, thereby increasing the overall volume of the bowl. The expandable bowl may be useful for various products, such as pre-packaged salads, where the salads may be packaged and displayed in the collapsed configuration, thereby minimizing shelf space, and may be changed to the expanded configuration by a user to permit tossing of the salad without risking spillage of the contents of the bowl.

A lid component for a paperboard packaging container, the lid component comprising a lid part and a connecting part, the lid part comprising a top portion and a side wall portion, the top portion having an outer lid surface, an inner lid surface opposite to the outer lid surface, and a peripheral edge surrounding the outer lid surface; and the connecting part comprising an upper portion and a lower portion and having a lower edge surface. Stacking members are arranged on the outer lid surface and comprise a lid component stacking step and a container stacking step, the lid component stacking step being arranged laterally outboard and below the container stacking step. The lower portion of the connecting part is adapted to be supported by the lid component stacking step. A lid component comprising a locking arrangement and paperboard packaging container comprising a lid component are also disclosed.

A lid for a drinking cup enables drinking while inhibiting splashing and spilling. The lid features a drinking spout having an outer wall, an inner wall and a top wall. A dispensing well formed in the spout includes a bottom wall, two end walls, and at least two opposed sidewall openings. Nearly all vertical beverage splashes impinge upon the underside of the bottom wall, while the opposed openings allow splashes entering the dispensing well to be drained through the opposite opening. A plurality of vent holes can be provided to allow air to enter the cup as beverage is consumed. Vent holes near the dispensing well can be blocked during drinking, when the cup is full and the beverage is hot, but unblocked as the beverage cools and is consumed. Interior baffle walls around the dispensing well can inhibit swirling or laterally-splashing beverage from entering the dispensing well.