Spray system with a dual induction process
US6029909A · kind A · utility
Inventor
Key dates
| Filing date | May 6, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | May 6, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/2424
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dual induction apparatus for high volume low pressure spraying systems is provided. The invention includes an atomizing tube with an entrance, a midpoint and an exit. A jet nozzle is connected to the entrance of the atomizing tube. A first plurality of induction ports pass through the sidewalls of the atomizing tube proximal the jet nozzle. The first plurality of induction ports are in communication with ambient air. When the compressed air passes through the jet nozzle a low pressure field is formed causing ambient air to be drawn into the atomizing tube. A venturi element is located inside the atomizing tube in the area about the midpoint to the exit. A tube in communication with the removable venturi element is passed through the sidewall of the atomizing tube. The tube is affixed in a perpendicular fashion to the aperture in the venturi element on its first side and is further connected to a reservoir of paints, powders, solvents or other substances. The tube may be mated to the atomizing tube in a removable sliding lock fashion. By the prior action of compressed air passing through the jet nozzle the low pressure field is formed and is maintained with ambient air having been…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.