Patent · US Active

Dual roller assembly for spreading material in additive manufacturing apparatus

US10994483B2 · kind B2 · utility

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0References

4Claims

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Assignee

EOS of North America, Inc. · US

Inventors

Timothy Beets · Austin, US
R. David Jones · Fort Worth, US
Lance Bruce Shanklin · Georgetown, US
Mike Conner · Ossenvenne, US

Key dates

Filing date	Sep 30, 2019
Grant date	May 4, 2021
Priority date	—
Expiry date	Sep 30, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A dual roller powder spreader assembly for use in layerwise manufacture in a powder bed fusion additive manufacture process utilizes in an embodiment tilting of the dual roller assembly such that a lead roller is raised upwardly relative to the powder bed in a sweep. This is accomplished using a mechanical cam-like engagement initiated at each end of the assembly's travel, causing what will then be the lead roller to rise as a whole relative to the now following roller, the latter pushing the powder pile across the powder bed. The tilt process is reversed at each end of travel.

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