Voltage block monitoring system
US6423143B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1999 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Nov 2, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A coating system includes a source of electrically non-insulative coating material, a dispenser for dispensing the coating material toward an article to be coated thereby, and an electrostatic high potential supply for supplying charge to the coating material. The high potential supply is coupled across the dispenser and the article. The coating system further includes a reservoir, a valve having a housing providing first, second, third and fourth ports, and a component movable within the housing and having a first passageway selectively to connect the first port to the second port to permit the flow of coating material between the first port and the second port. Sensors sense: the flow rate of the eletrically non-conductive fluid and provide an indication when the flow rate of the eletrically non-conductive fliud falls outside a desired range—the pressure of the eletrically non-conductive fliud and provide an indication when the pressure of the eletrically non-conductive fliud falls outside a desired range; the pressure of the coating material and provide an indication when the pressure of the coating material falls outside a desired rande—and the current supplied from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.