Fluid printing apparatus
US11673409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2019 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/3086
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fluid printing apparatus including substrate, print head, pneumatic system, and print head positioning system. The print head ejects fluid in a continuous stream with a micro-structural fluid ejector consisting of output, elongate input, and tapering portions between the output and elongate input portions. The output portion consists of an exit orifice of an inner diameter ranging between 0.1 μm and 5 μm and an end face having a surface roughness of less than 0.1 μm. The print head is positioned above the substrate with the output portion of the micro-structural fluid ejector pointing downward. During printing, the print head positioning system maintains a vertical distance between the end face and the printable surface of the substrate within a range of 0 μm to 5 μm, and the pneumatic system applies pressure to the fluid in the micro-structural fluid ejector in the range of −50,000 Pa to 1,000,000 Pa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.