Cleaning system and method
US11904599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2021 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Apr 8, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2235/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is provided a method of cleaning a print roller and a system for performing the same. The method comprises providing an ultrasonic cleaning bar having at least one ultrasonic energy source. The ultrasonic cleaning bar is engaged with an ink-carrying surface of the print roller, the ultrasonic cleaning bar and the ink-carrying surface defining a trough therebetween for containing a cleaning fluid. A cleaning routine is executed, the cleaning routine comprising: filling the trough with the cleaning fluid so that the cleaning fluid contacts the ink-carrying surface; activating the ultrasonic energy source for a period of time to remove contaminants from the ink-carrying surface of the print roller so that the contaminants become suspended in the cleaning fluid; and draining the suspension of cleaning fluid and contaminants from the trough. The method comprises executing the cleaning routine at least two times in succession before cleaning of the print roller is complete.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.