Multi-stage wash system for vat polymerization-based 3D printed parts
US12365138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | May 11, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention is generally a system for drying, recycling, and washing off residual resin from three-dimensionally (3D) printed objects. Exemplary systems may include a wash reservoir, a fan module, and one or more air exchange vents. The wash reservoir contains a wash solvent and a propeller fully or partially submerged into the wash solvent. The propeller splashes the wash solvent upwards to disperse on the 3D printed object, thereby largely washing away the resin residue present in the 3D printer object. The fan module is connected to the wash reservoir to create a positive or negative air pressure inside the wash reservoir, thereby redirecting the airflow to the wash reservoir. The air exchange vents are provided between a splash guard and a platform/lid of the wash reservoir to act as an air intake when the fan module blows air out of the wash reservoir and as an exhaust vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.