Patent · US Expired

Filter element and method for the manufacture

US6596168B2 · kind B2 · utility

1Cited by

8References

20Claims

0Family size

Assignee

Outokumpu Oyj · FI

Inventors

Kerry Johnson · Somerville, US
Olli Högnabba · Kirkkonummi, FI
Bjarne Ekberg · Turku, FI

Key dates

Filing date	Jan 16, 2001
Grant date	Jul 22, 2003
Priority date	—
Expiry date	May 20, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2237/32
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a filter element and its manufacture to be used in removal of liquid from solids containing material to be dried in a capillary suction dryer which filter element contains a ceramic microporous layer having the pore size under 5 micrometer and supported by a ceramic internal layer having recess areas for liquid flowing. The internal layer is made of at least one substrate which continuously surrounds at least one recess area and which ceramic internal layer is surrounded by at least one essentially continuous microporous surface layer.

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