Patent · US Active

3D printed tooling for pulp molding process

US12320068B1 · kind B1 · utility

0Cited by

3References

9Claims

0Family size

Assignee

PAPACKS SALES GMBH · DE

Inventors

Tahsin Dag · Cologne, DE
Florian Barth · Cologne, DE

Key dates

Filing date	Feb 2, 2024
Grant date	Jun 3, 2025
Priority date	—
Expiry date	Feb 2, 2044

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/757
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention is directed to a 3D printed mold for creating three dimensional pulp products from a fibrous pulp slurry. Transverse filaments are integrated into an infill structure with an open-cell pattern. The transverse filaments form channels through the interior matrix of the mold. The open cell infill pattern and channels allow for the movement of vacuumed materials through the interior matrix of the 3D printed mold when vacuum pressure is applied. The product surface of the mold comprises an array of beads formed from the over-extrusion of melted material at the ends of the transverse filaments. The beaded array narrows the opening of the channels created by the transverse filaments, preventing the fibers from entering the matrix of the mold and clogging the flow of materials. This causes the fibers to aggregate on the product surface of the mold, forming the three dimensional pulp product.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.