Patent · US Expired

Water draining device

US6716315B2 · kind B2 · utility

1Cited by

15References

22Claims

0Family size

Assignee

Voith Paper Patent GmbH · DE

Inventors

Karl Steiner · Herbrechtingen, DE
Robert Wolf · Woodbury, US
Hans Prinzing · Heidenheim, DE

Key dates

Filing date	Jan 12, 2001
Grant date	Apr 6, 2004
Priority date	—
Expiry date	Feb 25, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S162/07
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Water draining device for a paper machine or the like, in particular for a felted press of such a paper machine, including a receiving tank extending at least essentially over the machine width. The receiving tank includes a first chamber that receives arriving water and is under ambient pressure, and a second chamber that is connected to the first chamber and is under vacuum, into which the water collecting in the first chamber is aspirated and from which the water is eventually drained. A water receiving device of improved efficiency is also provided by forming a water receiving device by at least one suction channel projecting into the wedge-shaped area between the upper press roll and the dewatering belt, and extending transverse to the pulp web, which suction channel is connected to a source of reduced pressure.

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