Liquid dispensing apparatus
US6460980B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed a device for dispensing liquids, in particular dyes or inks. The device comprises a liquid tank, a dispensing nozzle, and a liquid conduit with an end connected to the liquid tank for supplying liquid from the liquid tank to the dispensing nozzle. The device is provided with vibrator means, particularly a piezoelectric transducer. The transducer is used for inducing a vibrating action of the dispensing nozzle, and by the vibrating action resulting in an acceleration of the nozzle, to an extent that is sufficient to cause the detachment of the liquid from the nozzle, The invention also relates to a printing head and system utilising the inventive dispensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.