Apparatus for needling a web
US5113563A · kind A · utility
2Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1991 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Jan 16, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H18/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
It is desired to use different needle pitches in the operation of an apparatus for needling a web without a need for replacing the needle board, the stripper and the optionally perforate backing. This is accomplished in that the holes provided in the needle board and serving to receive the needles, the holes of the perforate stripping plate and the holes in an optional perforate backing plate are arranged in at least two groups of holes and the holes in each row of each group are uniformly distributed over the working width of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.