Method and device for measuring the viscosity of an ink
US4856322A · kind A · utility
25Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1988 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Jul 27, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N11/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for monitoring the viscosity of ink in a continuous jet ink jet printer, which method comprises causing at least part of the ink to flow through a restricted orifice into a vessel and measuring the time taken to fill the vessel between a lower level limit and an upper level limit and allowing ink to escape from the vessel to reduce the level to below the lower level limit, characterized in that ink is automatically removed from the vessel by a syphon when the ink has reached the upper level limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.