Patent · US Expired

Filter

US6176890A · kind A · utility

7Cited by

9References

16Claims

0Family size

Assignee

Camfil AB · SE

Inventors

Thomas Svedlind · Trosa, SE
Erik Lans · Trosa, SE

Key dates

Filing date	Mar 26, 1999
Grant date	Jan 23, 2001
Priority date	—
Expiry date	Mar 26, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D46/003
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Filter for air and intended for use in wet environment of folded filter material (1) that is held together by glue strips (2,3) on the front and rear side of the filter material. The glue strings on the front side of the filter are interrupted at the bottom of the folds turned forwards so that transport channels (4) for water (5) are obtained at each forwards turned fold. Furthermore the filter folds are oriented vertically to facilitate for the water to run off.

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