Papermaker's forming fabric with machine direction stitching yarns that form machine side knuckles
US7219701B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/0036
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A papermaking fabric includes a series of repeat units, each of the repeat units including: a set of top machine direction (MD) yarns; a set of top cross machine direction (CMD) yarns interwoven with the set of top MD yarns; a first set of bottom CMD yarns, the first set of bottom CMD yarns arranged in pairs; a second set of bottom CMD yarns, the second set of bottom CMD yarns arranged as single yarns; a set of bottom CMD yarns interwoven with the first and second set of bottom MD yarns; and a set of pairs of MD stitching yarns interwoven with the top and bottom CMD yarns, each pair of MD stitching yarns sandwiching a respective immediately adjacent bottom MD yarn of the second set. Each of the yarns of a pair of the first set of bottom MD yarns interweaves with the bottom CMD yarns in the same pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.