Air operated low pressure spraying system
US4850809A · kind A · utility
Inventor
Key dates
| Filing date | Apr 14, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Apr 14, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87627
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus for converting high pressure, low volume air to low pressure, high volume filtered air in order to successfully atomize fluids, such as paint, of various viscosities. The invention makes it possible to utilize safe, economical compressor air to atomize fluids by a portable enclosure including a variable jet venturi induction pump which separates the pump from the area of application and other potentially contaminating elements. Ambient air is introduced into the portable enclosure after regulation and filtration. A low pressure field is established in the induction pump by increasing the velocity of the compressor air in a venturi section of the pump but is free of contaminates generated, for example, by overspray in the vicinity of the area of application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.