Liquefier assembly for use in extrusion-based additive manufacturing systems
US8647098B2 · kind B2 · utility
16Cited by
54References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jun 1, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2009/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A liquefier assembly for use in an extrusion-based additive manufacturing system, the liquefier assembly comprising a downstream portion having a first average inner cross-sectional area, and an upstream having a second average inner cross-sectional area that is less than the first inner cross-sectional area, the upstream portion defining a shoulder configured to restrict movement of a melt meniscus of a consumable material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.