Solvent resistant electrostatic spray gun
US4978075A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Dec 6, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0532
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic spray gun having an internal alternator-turbine power supply is provided with an air circuit which divides the air passages to the front end of the gun on one hand and to the power supply in the other hand at the trigger valve to prevent paint or solvent leakage into the power supply. The power supply is completely encapsulated or potted such that the only parts of the power supply extending through the containment are heat sinks, electrical connectors and a voltage indicator. Lastly, as C-clip is provided to attach the turbine alternator to the rest of the power supply which utilizes an interior groove on the alternator turbine and an exterior groove on the main body of the power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.