Solvent supply for paint sprayer
US5709749A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1994 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Oct 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7788
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cleaning apparatus (10) for removing residual paint from flow passages in a spray painting system comprises a flow passage (12) for conveying paint to a spraying device (14) and a manifold (16) defining a plurality of individual inlets (17) into the flow passage. At least two different paints are supplied to the manifold through the inlets. A solvent supplier (20) supplies a variable pressure and variable volume flow of solvent to the manifold (16) during a cleaning cycle to remove residual paint from the manifold and the flow passage (12) after a completed painting cycle to prepare for a new cycle. The assembly is characterized by including a constant volume flow controller (22) for maintaining a constant volume flow of solvent upstream of the manifold (16) independent of solvent pressure fluctuations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.