Electrostatic spraying apparatus
US4765539A · kind A · utility
90Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1986 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Feb 19, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0255
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and process for spraying liquids wherein liquid emerging from a sprayhead is subjected to an electrical field sufficiently high for the liquid to be drawn from the sprayhead in the form of one or more filaments. The filament or filaments become unstable and subsequently break up into droplets. A stream of gas is caused to flow through the region of the high electrical field, the gas flowing in a direction parallel or substantially parallel with the direction in which the liquid emerges from the sprayhead. Droplets are thus removed from the region and a built-in in space charge is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.