Patent · US Active

Profile bar screen for digester vessels

US8980061B2 · kind B2 · utility

2Cited by

5References

9Claims

0Family size

Assignee

VALMET AB · SE

Inventors

Mikael Vinje · Karlstad, SE
Jerk Söderman · Karlstad, SE

Key dates

Filing date	Jan 12, 2012
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Jan 12, 2032

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21D5/16
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The improved profile bar screen is for draining treatment liquor from a suspension of comminuted cellulose material and treatment liquor in an essentially cylindrical digester vessel. The profile bar screen is designed with horizontal support arches that have expansion slots allowing the otherwise rigid structure of the support arches to flex and adapt to any unevenness of the vessel wall, thus allowing support shoulders to rest against the inside of the vessel wall.

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