Nozzle modulators
US5086973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Apr 11, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/087
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved nozzle modulator, an improved nozzle modulator assembly, and an improved coating method comprises a nozzle having a housing. A fluid reservoir communicates with the housing. The nozzle has a nozzle outlet about which a meniscus is formed. A high voltage source is connected to the nozzle. The fluid is dispensed as one or more charged fluid paths from the nozzle upon the actuation of the high voltage source. A plurality of repulsive and attractive electric fields are positioned to surround the fluid path. An electrical biasing means is connected to the electrical fields for biasing the fields and modulating the fluid path to form a homogeneous fog comprising uniformly disbursed droplets moving in a wide variety of directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.