Transportation of pulverulent build-up material for producing three-dimensional objects
US11446873B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Nov 2, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y10/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In the field of producing three-dimensional objects by additive manufacturing, methods and apparatuses are provided for transporting powdered build material that is used for the production of three-dimensional objects. In order to furnish a simple, reliably operating, and maintenance-free solution for material transportation from one space to another while simultaneously influencing gas exchange between the two spaces, in particular while maintaining gas separation of the spaces, it is proposed that a powder column be formed with the build material, which column influences the gas exchange, in particular prevents a gas exchange between the spaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.