Powder transport method and apparatus
US7273339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Mar 7, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/1472
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to a powder paint delivery method and apparatus employing a pressurized reservoir pump that supplies a controlled stream of densely fluidized or dense phase powder paint to the applicator though a powder delivery conduit. The powder flow rate is a function of the pressure in the reservoir and the flow resistance from the reservoir to the applicator, and is therefore very stable over time, and simple to control. The powder flow can be controlled by holding the resistance of the powder flow path constant and varying the pressure in the reservoir, or by holding the reservoir pressure constant and varying the resistance of the powder flow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.