Patent · US Expired

Suction device

US5974684A · kind A · utility

4Cited by

6References

36Claims

0Family size

Assignee

Voith Sulzer Papiermaschinen GmbH · DE

Inventors

Karl Steiner · Herbrechtingen, DE
Hans Prinzing · Heidenheim, DE
Karl Gaugenmaier · Heidenheim, DE

Key dates

Filing date	Feb 5, 1998
Grant date	Nov 2, 1999
Priority date	—
Expiry date	Feb 5, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H2406/362
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A suction device for a machine to produce a fibrous pulp web is provided that includes a suction unit extending transverse to a web run direction over a width of the web, a vacuum source coupled to the end of the suction unit, and a plurality of suction openings distributed over the web width, where the plurality of suction openings form an entire suction zone extending over the width of the web, and where the entire suction zone includes a plurality of partial suction zones successively arranged transverse to the web run direction.

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