Three-dimensional printing excess deposited particulate handling
US10144207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2015 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/251
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A three-dimensional printing apparatus is disclosed has one or more troughs for receiving excess deposited particulate. Such troughs may be positioned to receive the excess deposited particulate into a particulate receiving chamber of the trough. An evacuation chamber is located at the bottom of each trough. A partition separates the evacuation chamber from the receiving chamber of the trough. The partition is selectively perforated to permit a desired amount of the particulate to flow into the evacuation chamber from the receiving chamber. The evacuation chamber is connected to a vacuum source to periodically or continuously draw ambient gas from a gas inlet to the evacuation chamber and/or from the receiving chamber through the perforations of the partition and then through the evacuation chamber toward the vacuum source to entrain an amount of the particulate and carry the entrained particulate out of the evacuation chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.