Patent · US Active

Method and device for conveying particulate material during the layer-wise production of patterns

US9469074B2 · kind B2 · utility

28Cited by

138References

21Claims

0Family size

Assignee

VOXELJET AG · DE

Inventors

Ingo Ederer · Geltendorf, DE
Andreas Hartmann · Stadtbergen, DE

Key dates

Filing date	Apr 11, 2014
Grant date	Oct 18, 2016
Priority date	—
Expiry date	Jul 16, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to apparatus, devices and methods for conveying particulate material during the manufacture of patterns in layers, wherein powder is conveyed out of a reservoir into a spreader unit and, if applicable, excess powder fed to the spreader unit is again conveyed back into the reservoir and wherein this conveying takes place in a closed conveying circuit.

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