Method of controlling the flow rate of the liquid by controlling operation of the pump
US8644993B1 · kind B1 · utility
5Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2013 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Apr 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7303
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Integrated, stand-alone, multiple-purpose pump stands are provided for controlled pumping of different liquids from a stand-mounted tank to a downstream use location, e.g., a seed treating device. The pump stands are equipped with an operating assembly including a liquid tank, a powered pump, a liquid flow line equipped with a flow meter from the tank and pump to the use location, and a programmable digital control device. During operation, the control device serves to approach and maintain the flow rate from the pump stand at or about a desired setpoint flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.