Electrostatic liquid applicator for spraying a liquid surface-coating material
US5720819A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Apr 17, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic liquid applicator; such as an oscillating disk paint gun, for spraying a liquid coating material such as paint or the like onto the surfaces of a wide variety of types of articles. The electrostatic liquid applicator includes a stationary bell, an oscillating drive shaft extending through the stationary bell and which is rotatably driven by an air-controlled drive system. An oscillating disk is fixedly mounted on the drive shaft towards the front side of the stationary bell so as to form a spray slot in a liquid plenum in cooperation with the front side of the stationary bell. The drive system includes a body portion which is located at the rear side of the stationary bell, and includes air supply ports and air exhaust ports and forms a sealed space with the rear side of the stationary bell. A drive member projects radially into this space and is anchored to the drive shaft for pivoting the latter between two end positions which are defined within a predetermined angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.