Patent · US Expired

Method and apparatus for producing a three-dimensional object

US5647931A · kind A · utility

296Cited by

4References

34Claims

0Family size

Assignee

EOS GmbH Electro Optical Systems · DE

Inventors

David Retallick · Munich, DE
Hans J. Langer · Stadthagen, DE

Key dates

Filing date	Aug 22, 1995
Grant date	Jul 15, 1997
Priority date	—
Expiry date	Aug 22, 2015

Classification

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

Abstract

In a method and an apparatus for producing three-dimensional objects by layerwise solidification of a material the problem is encountered that, in particular when using powdery or pasty material, a material layer having an exactly adjusted thickness can not be generated in a sufficiently fast manner. In order to solve this problem, it is proposed to scrape the material by means of a vibrating wiper member (21, 22) when applying the material or to provide a movable container (13) used for applying the material with such wiper members (21, 22) at the lower side thereof.

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