Extrusion method for three dimensional modeling
US6998087B1 · kind B1 · utility
111Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jul 10, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A multi-tip extrusion method and apparatus for building a three-dimensional object deposits modeling materials from distinct supply sources, each in a layerwise predetermined pattern, from dispensers having co-planar dispensing tips. The tip spacing is controlled so that a road of material extruded by a leading one of the tips will cool and shrink from the plane of the tips before a trailing one of the tips passes over the road. In this manner, smearing of the road by a trailing one of the tips is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.