Liquid interface techniques for additive fabrication and related systems and methods
US11312074B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Apr 18, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y30/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
According to some aspects, an additive fabrication apparatus is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a supporting liquid or a film disposed within a container, in addition to the build platform, a liquid photopolymer, and/or a previously formed layer of a material. The additive fabrication apparatus may comprise a container and a leveling element, wherein the leveling element is configured to move across a liquid-liquid interface to promote or create a flat interface between the two liquids. According to some aspects, the additive fabrication comprises a film disposed between two liquids, wherein the film maintains or provides a flat surface at the interface of the two liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.