Patent · US Active

Filter bag for a vacuum cleaner and use thereof

US8070858B2 · kind B2 · utility

4Cited by

7References

37Claims

0Family size

Assignee

EUROFILTERS HOLDING N.V. · BE

Inventors

Jan Schultink · Eksel, BE
Ralf Sauer · Overpelt, BE

Key dates

Filing date	Dec 8, 2006
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Oct 11, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter bag for a vacuum cleaner includes at least three layers, at least two layers which include at least one nonwoven fabric layer and one nonwoven fibre layer being connected by a weld, a high bulk resulting due to the small number of welds per surface area.

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