Printing sleeve noise reducer
US6938548B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A noise reduction sleeve that fits over a printing sleeve while the printing sleeve is being slid onto or off of a respective cylindrical with the aid of compressed air exiting from holes in the outer surface of the cylinder. The noise reduction sleeve is an open-ended cylinder of felted fibrous material of a length equal to or slightly longer than the printing sleeve, with an axial wall. The noise reduction cylinder has a long section, slightly shorter than the printing sleeve, with an inside diameter slightly larger than the outside diameter of the printing sleeve. The remaining length of the noise reduction sleeve is crimped down to an inside diameter slightly less than the outside diameter of the printing sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.