Piezoelectric dispenser and method of calibrating stroke of the same
US10328449B2 · kind B2 · utility
2Cited by
3References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Aug 27, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B17/0607
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A piezoelectric dispenser having a uniform dispensing quality of a viscous liquid by calibrating an operation stroke of a valve rod discharging a viscous liquid (vertical operation displacement of the valve rod) by setting the operation stroke of the valve rod to an initial value during use, and a method of calibrating the operation stroke of the piezoelectric dispenser. Accordingly, a uniform dispensing accuracy of viscous liquid may be maintained, and degradation of the dispensing quality of a viscous liquid due to abrasion of components may be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.