Precision liquid dispensing system
US7410615B2 · kind B2 · utility
13Cited by
24References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Feb 16, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for dispensing microdrops of reagent in small, precisely metered quantities maintains the fluid reagent to be dispensed in a reservoir under a controlled pressure. The reagent is dispensed through multiple nozzles connected to solenoid-actuated valves that control the flow of the reagent from the reservoir to the nozzles. Each valve is connected to one of the nozzles and electrical pulses are supplied separately to each of the valves to separately control the opening and closing of each valve to dispense predetermined quantities of the reagent through each nozzle at predetermined times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.