Patent · US Expired

Method and apparatus for dewatering a fibrous web

US4584058A · kind A · utility

12Cited by
9References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 21, 1984
Grant dateApr 22, 1986
Priority date
Expiry dateMay 21, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/249981
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An apparatus, method and band for forming and/or dewatering a fibrous web, in which the web or a pulp suspension layer forming the same is conveyed and supported through a significant portion of its run in a paper machine by a specific processing band, while liquid such as water is simultaneously removed therefrom by hydraulically contacting the same with liquid present under vacuum or underpressure within the processing band, through a finely porous, liquid-suction surface on the band that is saturated with liquid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.