Method of driving liquid-drop spraying device
US6508411B1 · kind B1 · utility
5Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jan 8, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/046
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid-drop spraying device is provided which can perform a stable liquid discharge without producing air bubbles in the liquid of the pressurized room as well as the amount of liquid supply per unit time is increased. The liquid can be flowed into the pressurized room uniformly and without entrainment of bubbles from the nozzle side by making an initial discharge (or charge) time constant larger than a subsequent discharge (or charge) time constant, which in turn allows liquid in the pressurized room to be replaced by slow suction followed by fast suction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.