Constant pressure liquid spraying system controller
US6259220A · kind A · utility
9Cited by
15References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Oct 19, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spray controller accepts a spray pressure input and a pressure control input, and provides a pressure control output. The controller includes an amplifier and pressure transducer, and its pressure control output is the product of the amplifier's gain and the sum of (a) a preset calibration voltage and (b) the product of the pressure transducer's gain and electrical response. The pressure control input controls the gain of the transducer to vary the pressure control output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.