Spray gun
US5538190A · kind A · utility
Inventors
Key dates
| Filing date | Apr 27, 1995 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Apr 27, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/76
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic spray gun including a housing for receiving a replaceable fluid container, a nozzle from which fluid is to be sprayed, apparatus for expelling the fluid from the container and a high voltage generator for applying electrostatic potential to the fluid to form an electrically charged atomized spray at the nozzle. The replaceable fluid container is externally insulating and the electrical path from the generator passes through the fluid entering it at a point remote from the nozzle. A piston is employed to expel the fluid from the nozzle during spraying. The electrostatic spray gun has the advantage that it does not employ propellants and the paint need not be stored in a flexible plastic container thereby preventing loss of solvent during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.