Testing colorant condition
US11274030B2 · kind B2 · utility
0Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Liquid dispenser and method for operating such a liquid dispenser, such as a dispenser for tinting pastes. The dispenser comprises at least one liquid container and at least one reciprocating pump. First, a suction stroke is carried out at a set pump speed. After the suction stroke, the pump is closed off. Then, a pressure stroke is started while the pump is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.