Device for hydrodynamic needling of fleeces, tissues, or the like
US6055710A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1997 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Nov 10, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B23/025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The permeable drum for needling tissues, nonwovens, or other permeable materials of a certain width consists of a normally perforated sheet metal drum on which strips that are thin and extend axially over the length of the drum are arranged with small distances between them around the drum. The strips radially support a very thin sheet metal jacket with microfine perforations and produce a uniform flow of liquid through the material that rests externally against the sheet metal jacket. The strips can be joined together for example to form a honeycomb profile and thus uniformly transfer the hydrodynamic load developed during needling to the screen drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.