John D. Correll has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A box blank for a pizza carton or other food carton that comprises one or more of the following features: (1) a structure that enables multiple blanks to be mated end-to-end for a material savings, (2) a rigidizing fold line structure for connecting a flap to a wall panel in a way that minimizes flap movement during box blank manuf acture, and (3) a frictionizing slot-forming slit that creates a tight-gripping cover flap receiving slot in the erected carton.
Abstract: A non-fastened food carton embodying one or more of the following structural features: (1) a slanting-wall-enabling cover side flap structure, (2) a bottom panel that has a front-to-rear length that's longer than a left-to-right width of the bottom panel and a full-length cover panel that has a front-to-rear length that's shorter than the bottom panel's front-to-rear length, (3) a bottom panel having a front-to-rear length that's at least six millimeters longer than the diameter of a pizza contained within the carton and a full-length cover panel having a front-to-rear length that's at least eight millimeters shorter than the diameter of the pizza, (4) a stack of inward-slanting-wall pizza cartons that have no stacking-impeding tabs projecting beyond the cover panel, (5) a non-rectangular carton structure involving a cover front flap that has a height that's substantially shorter than the height of the front wall, and (6) a rigidizing rear wall in which the rear wall has a left-to-right width at least six mil
Abstract: A method and an associated holder for consuming a sandwich such as a hamburger. It involves the provision of a particular sandwich-loaded fold-back sandwich-holder comprising a bottom panel and at least one side section attached thereto and having a fold-back portion.
Abstract: A wall-engageable pizza carton folded into a non-wall-engaged format and which (a) has thermal-legs for holding the bottom of the box above a table top, (b) has an improved hole-covering flap that can function as an inner panel interlock means, and (c) can be stacked in a level stack with other cartons even though it has thermal-legs and the cover front flap is projecting forward.
Abstract: A heat-retaining boxing and holding method involving placing a recently-cooked pizzeria pizza into a corrugated box having one or more thermal-legs, thereby creating a pizza-loaded thermal-leg-equipped box.
Abstract: A paperboard clamshell carton having a cover member that has a distance between opposing lateral panel fold lines that is slightly longer than a distance between the top edges of opposing side walls. In addition, the height of the first and second side walls is such that the side walls extend virtually all the way from the bottom panel to the top panel of the carton. Thereby, lateral panels of the cover member are disposed on an exterior side of the side walls and the top panel rests on the top edge of the side walls, particularly when downward pressure is applied to the cover member. The invention is envisioned for use in packaging food products such as pizza, breadsticks, chicken, hamburgers, salads, and the like; however, it could be used in other applications, as well.
Abstract: A quality-enhancing pizza carton having an improved fall-back side wall structure with a diagonal wall for verticalizing the fall-back side wall, an improved corner wall structure having a connector panel disposed at an oblique angle to the bottom panel, and a cover anti-shift structure.
Abstract: A hot food carton having a heat-retention structure comprising a unitary plurality of hingedly connected heat-retention panels disposed interior to the walls, cover, and bottom panel of the carton. Also included with the carton is a cover closure retention means providing for secure cover closure without use of a cover front flap. Intended uses include packaging of pizza, breadsticks, chicken wings, and fried foods.
Abstract: A pizza carton having an improved side wall structure and improved cover structure for a D-type box, an improved structural arrangement of major and minor diagonal walls, an improved fold line structure containing a pressure-releasing slit, and an easy-grasp tab on the cover.
Abstract: A plastic food cup fitable within a corner space of a loaded pizza box and having a non-radially-symmetrical top edge perimeter having a corner-fitting component and a diagonal connecting component and, in the preferred embodiment, resembling the shape of an isosceles right triangle.
Abstract: A slanting-wall, one-piece, four-wall, rear-wall-reclinable pizza box comprising a tray member and a cover member hingedly attached thereto. The tray member comprises a bottom panel, a reclinable rear wall, a front wall, and opposing left and right slanting side walls extending between the front and rear walls. The cover member comprises a cover panel hingedly attached to a top edge of the rear wall and having a left-to-right width that is greater than a left-to-right width of the bottom panel.
Abstract: A non-rectangular, non-collapsible, expandable box having a roll-over expandable wall section comprising a roll-over wall structure, a single-panel wall structure, and an angle-changeable wall structure. The roll-over wall structure comprises parallel inner and outer wall panels, the single-panel wall structure comprises a wall panel and a corner flap panel attached thereto, and the angle-changeable wall structure comprises a plurality of foldline-connected movable panels that is movable from a first disposition to a second disposition. A method of use is associated with the box. The primary purpose of the box is for packaging pizza and similar products.
Abstract: A designer-type pizza box employing one or more unique structural elements including: (a) at least six walls comprising front and rear walls, a pair of forward side walls, and a pair of non-parallel rearward side walls, with the length of the front wall being longer than the length of the rear wall; (b) an easy-folding rear diagonal side wall structure comprising a diagonally-disposed rearward side wall and a unitary plurality of hingedly connected connector panels extending between the rearward side wall and a rear wall; (c) a type of thermal-leg comprising a corner flap attached to the end of a wall and disposed between the panels of a double-panel wall and projecting through a hole in the bottom of the box; (d) a hole-covering double-panel wall structure comprising a hole-covering flap attached to the bottom edge of an inner panel of a double-panel wall and covering an opening in the bottom of the box; and (e) a strengthened double-panel wall comprising inner and outer panels joined by a double-panel conne
Abstract: A pizza box blank having a special double-panel wall structure and a non-centrally-positioned interlock receptor means that allows the inner panel of the double-panel wall structure to be formed into a special shape that, in turn, allows the box blank to be made with less material than would be required if the blank contained a conventional double-panel wall structure and interlock receptor means.
Abstract: A one-piece expandable pizza box having a bottom panel, a fully-reclinable rear wall, a cover attached to the rear wall, at least one fall-back side wall structure with a side wall that can assume both a vertical position and a fall-back position, and a double-panel wall adjacent the side wall; plus an associated method of use involving placing a pizza into the partially-erected expandable pizza box and causing the side wall to move from the fall-back position to the vertical position.
Abstract: A versatile multi-function pizza carton capable of assuming a variety of configurations and of providing various features and functions. Specific disclosed structure includes double-panel V-walls, convertible side walls, convertible cover flaps, fall-back side walls, fall-back-wall retention means, wall-angling fold line, easy-tear corner fold line, and thermal-legs.