Fluid dispensers
US6398513B1 · kind B1 · utility
41Cited by
12References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 20, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Sep 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid dispense system having a computer control system that operatively controls a stepper motor driving a nutating pump. The stepper motor actuates the nutating pump piston through partial revolutions. The computer control system determines the number of stepper motor steps required to pump a desired amount of fluid by the nutating pump by rotating the piston through segments which are less than a full revolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.