Gated proportional flow control valve with low flow control
US5954080A · kind A · utility
40Cited by
10References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0396
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gated proportional control valve is disclosed which allows both high-flow proportional dispensing and precision low flow. The design includes one or more controlled diameter and controlled-shape orifices in the control path, which, when both of the gate valves are opened, allow for consistent low flow dispensing. The gate valves can alternatively be opened or closed to allow proportional dispensing or valve closure. The invention is particularly useful in a fuel dispensing apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.