3D printer with increased uniformity of build chamber temperature
US12304147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Aug 7, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/118
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An extrusion-based 3D printer configured to print 3D parts in a layer-by-layer manner includes a heated build chamber, a build platen within the chamber and at least one print head configured to extrude material onto the build platen or previously extruded material wherein the at least one print head is configured to move in a print plane. The 3D printer includes at least one air intake and exhaust system that includes ductwork having an inlet configured to intake air from the build chamber and an outlet configured to exhaust air into the build chamber proximate the build plane, a fan proximate the inlet and configured to draw air into the ductwork through the inlet and propel the air towards the outlet, a heater proximate the outlet, the heater configured to heat the air as the air passes the heater and a perforated diffuser plate between the fan and the heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.