Extrusion apparatus for three-dimensional modeling
US6749414B1 · kind B1 · utility
296Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2001 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jan 5, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a multi-tip extrusion apparatus and design methodology whereby a single extrusion head having approximately co-planar, fixed-position dispensing tips is used in a three-dimensional modeling machine to deposit multiple types of materials from distinct material supply sources. The tips are spaced apart a distance great enough so that a road of material extruded by a leading one of the tips will cool and shrink from the plane of the tips so that it is not smeared by contact with a trailing one of the tips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.