Filament drive mechanism for use in extrusion-based digital manufacturing systems
US7896209B2 · kind B2 · utility
156Cited by
39References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Jan 27, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/321
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A filament drive mechanism comprising a rotatable component comprising a central hole defined at least in part by an internally-threaded surface, and is configured to receive a filament strand through the central hole to engage the internally-threaded surface with the filament strand. The filament drive mechanism further comprises at least one rotation mechanism configured to rotate the rotatable component, thereby allowing the engaged internally-threaded surface to drive the filament strand through the central hole of the rotatable component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.