Paperboard pressing tool
AssigneeBrown LLC
InventorSteffen Brown
Life of this patent
Estimating the term…
Abstract
A multistage press machine for applying pressure to a blank to form a part comprises an upper plate assembly, a lower plate assembly, a top tool, and a bottom tool. The upper plate assembly couples to a system which lowers and raises the upper plate assembly. The lower plate assembly couples to the system to raise and lower the lower plate assembly. The top tool is attached to the upper plate assembly and configured to form a plurality of upper features in an upper surface of the blank, wherein each upper feature is formed in a respective one of a plurality of stages of a press operation. The bottom tool is attached to the lower plate assembly and configured to form a plurality of lower features in a lower surface of the blank, wherein each lower feature is formed in a respective one of the stages of the press operation.
Claims10
A multistage press machine for forming a food storage container, the multistage press machine comprising:
- an upper plate assembly configured to couple to a system which lowers and raises the upper plate assembly;
- a lower plate assembly configured to couple to the system to raise and lower the lower plate assembly;
- a top tool attached to the upper plate assembly and including:
- a male mold configured to form an inner radius surface of a curved upward wall of the food storage container and an upper surface of a flange of the food storage container,
- a male mold ring insert configured to form an upper surface of an outer portion of a circular central wall of the food storage container, and
- a male mold central insert configured to form an upper surface of an inner portion of the circular central wall;
- and
- a bottom tool attached to the lower plate assembly and including:
- a female mold configured to form an outer radius surface of the curved upward wall and a lower surface of the flange,
- a female mold ring insert configured to form a lower surface of the outer portion of the circular central wall, and
- a female mold central insert configured to form a lower surface of the inner portion of the circular central wall.
Dependencies are inferred from the claim text.