Method and an installation for needling a fibre fleece using two needle bars
US7373705B2 · kind B2 · utility
4Cited by
14References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2005 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Jun 10, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H18/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The installation includes two needling apparatuses (2, 3) which succeed each other on one side of the path (1) for the fleece to be needled. The needles (47) have an “elliptical” movement, i.e. their reciprocating movement of penetration is combined with a reciprocating movement parallel to the direction of progression. The two mechanisms are actuated at the same speed but with a phase shift of 180° between them. The installation is used for balancing horizontal vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.