Apparatus and methods for handling materials in a 3-D printer
US8185229B2 · kind B2 · utility
89Cited by
211References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 2011 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jun 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86187
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of controlling the flow of unbound powder in a build chamber. A build surface for receiving the powder is provided, with the build surface including a first plate defining holes and a second plate defining a plurality of openings spaced apart and offset from the plurality of holes in the first plate. The second plate is disposed below and spaced from the first plate. A vacuum source is provided below the build surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.