Systems and methods for controlling operation of micro-valves for use in jetting assemblies
US11975539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2023 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | May 26, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/05
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A marking system includes a valve body including an orifice plate including multiple orifices and multiple micro-valves. Each micro-valve includes an actuating beam movable from a closed position in which a corresponding one of the orifices is sealed by a portion of the actuating beam such that the micro-valve is closed, into a peak position in response to application of a control signal. A controller is configured to generate a control signal for each of the actuating beams, each control signal including a drive pulse having a predetermined voltage such that the actuating beam moves from the closed position into the peak position in which the corresponding orifice is open and returns to the closed position in a characteristic period, wherein the drive pulse has a duration that substantially corresponds to the characteristic period such that the actuating beam is in the closed position after the drive pulse is complete.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.