Three-dimensional printing device for printing polyurethane articles
US12337542B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2022 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Feb 22, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2075/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A 3D printing device includes: a travelling dispenser including: a mixing chamber, a nozzle, a first gear pump, and a second gear pump, each of the first gear pump, the second gear pump and nozzle being in respective fluid communication with the mixing chamber; a first polyurethane reagent supply in fluid communication with the first gear pump; and a second polyurethane reagent supply in fluid communication with the second gear pump. The first polyurethane reagent supply accommodates a polyol mixture, and the second polyurethane reagent supply accommodates a diisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.