Spiral wound papermaking-machine felt
US5268076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1992 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Sep 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/90
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A felt, especially for the press part of a papermaking machine, includes at least one support belt and at least one fiber belt deposited on and affixed to it. In order to impart to such a felt improved operational properties while retaining adequate transverse stability and in order to manufacture it at substantially lower cost, the support belt(s) 45, 50, 57, 58, 64, 71, 72 each are composed of at least one support-belt strip 46, 51, 52, 59, 60, 65, 66, 73, 74, 75 with a width less than that of the support belt(s) 45, 50, 57, 58, 64, 71, 72 , said strip(s) being continuously wound essentially in the direction of advance of the felt 42, 47, 53, 61, 67 and also spirally transverse to it. Basically manufacture is carried out by means of the following method steps: PA0 a) first a belt of material is manufactured, PA0 b) at least one support-belt strip 46, 51, 52, 59, 60, 65, 66, 73, 74, 75 is affixed to the belt of material and evinces a width less than that of the finished felt 42, 47, 53, 61, 67, PA0 c) the belt of material is displaced in the direction of advance, PA0 d) the first support belt 45, 50, 57, 58, 64, 71, 72, and where called for other support belts 45, 50, 57, 58, 64, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.