Papermaking fabric seam with seam flap or extension
US5476123A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1993 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Jun 18, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24785
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A woven fabric, such as a base fabric for a press felt, which is designed for a papermaking machine or the like has along each one of two end edges a plurality of seam loops to be included in a loop seam to form an endless woven fabric. The fabric is characterized in that there is provided, at least at one of the end edges, at least one string of material, preferably in the form of one or more extra yarn threads, extended substantially parallel to the above-mentioned one end edge adjacent the regular thread system of the fabric. The extra yarn thread or threads are woven to only such portions of the seam loops as are facing a first side of the fabric, preferably the paper side thereof. In this manner, there is formed in the seam zone a type of extension of the regular thread system of the fabric, whereby the loop seam is conformed to the rest of the fabric to avoid markings in a paper web at the loop seam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.