Air turbine drive for electrostatic spray gun
US4462061A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1983 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Jun 29, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/001
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic spray gun having a rotatable voltage generator for providing electrical energy at low voltage for conversion within the spray gun into electrostatic high voltage energy, wherein a rotating voltage generator is driven by an air turbine under the influence of a pressurized input air supply, the pressurized air passing through conduits in the handle of the spray gun, an air valve actuated by a trigger, an air flow regulator, and into impinging contact against rotatable turbine blades. The air supply is exhausted from the spray gun through internal passages which provide cooling air to the electrical components within the spray gun, and through further passages opening from the bottom of the spray gun handle which minimize the audible noise caused by such air flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.