Electrostatic spray gun device and cable assembly
US4784331A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | May 27, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/053
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic spray device and cable assembly for charging coating material applied to an article in industrial finishing operations includes a gun body having a powder flow passageway and a dielectric sleeve contained within the passageway such that the discharge opening of the spray device surrounds the sleeve. The cable assembly comprises a dielectric tube having a hollow interior and a high voltage electrostatic cable mounted within the tube and connected at one end to a supply of electrostatic voltage. A particle deflector having an electrode in the form of a resistive sheet is mounted by the tube in charging relationship to a coating particle discharge opening in the spray gun, and the opposed end of the cable is electrically connected to the electrode. An adjustment device acts on the tube and cable to move them as a unit within the passageway in the spray gun to adjust the axial position of the deflector and electrode relative to the particle discharge opening in the spray device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.