Method for acoustically ejecting a droplet of fluid from a reservoir by an acoustic fluid ejection apparatus
US7717544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2004 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Feb 28, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/0458
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides apparatuses and methods for acoustically ejecting the fluid from a reservoir contained in or disposed on a substrate. The reservoir has a portion adapted to contain a fluid, and an acoustic radiation generator is positioned in acoustic coupling relationship to the reservoir. Acoustic radiation generated by the acoustic radiation generator is transmitted through at least the portion of the reservoir to an analyzer. The analyzer is capable of determining the energy level of the transmitted acoustic radiation and raising the energy level of subsequent pulses to a level sufficient to eject fluid droplets from the reservoir. The invention is particularly suited for delivering fluid from a plurality of reservoirs in an accurate and efficient manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.