Patent · US Expired

Extended nip press for a paper machine

US4496429A · kind A · utility

20Cited by
6References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 25, 1983
Grant dateJan 29, 1985
Priority date
Expiry dateMar 25, 2003

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S162/901
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An extended nip press for a paper machine for removing water from a wet paper, cardboard or that kind of a fibrous or porous web. The press comprises a rotatable press roll and two band rolls parallel to the press roll and an endless press band running around them which is pressed against the press roll for forming an extended press zone. The paper web to be dried is conveyed through the pressing zone with a dewatering felt. The press band consists of several separate parallel band strips, in the pressure zone. Each band strip is equipped with its own stretching device for individual regulation of the tension of the band strip.

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