Patent · US Expired

Method of compressing fibrous bodies

US6625853B2 · kind B2 · utility

0Cited by

10References

5Claims

0Family size

Assignee

SCA HYGIENE PRODUCTS AB · SE

Inventors

Gunnar Edvardsson · Malmö, SE
Claes Goransson · Landvetter, SE

Key dates

Filing date	Sep 17, 2002
Grant date	Sep 30, 2003
Priority date	—
Expiry date	Sep 17, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/1002
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method of compressing fibrous bodies which are held in place on a perforated support by means of negative pressure. Each fibrous body to be compressed is arranged on a first support that includes parts with and without perforations. A first compression of the fibrous body is then brought about over the part without perforations. The partly compressed fibrous body is then transferred to a second support which includes perforations in a part covered by compressed portions of the fibrous body and a part without perforations covered by uncompressed portions of the fibrous body. A second compression of the fibrous body is brought about in those portions of the fibrous body which cover the part without perforations of the second support.

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