Vacuum cleaner filter bag
AssigneeEurofilters Holding N.V.
InventorsRalf Sauer, Jan Schultink
Life of this patent
Estimating the term…
Abstract
The invention relates to a vacuum cleaner filter bag, including an inlet opening (3), a filter bag material which has an inner layer of nonwoven material (10) at least in the region of the inlet opening, and a holding plate (2) which is arranged on the outside of the filter bag in the region of the inlet opening, can be attached to a vacuum cleaner holding means for securing the vacuum cleaner filter bag and on which a closure device (4) for closing the inlet opening is provided, wherein the nonwoven material, in the region of the inlet opening, has a surface (20) which is provided in such a manner that the formation of a filter cake on said surface is avoided.
Claims18
A vacuum cleaner filter bag comprising
- an inlet opening,
- a filter bag material comprising an inner layer of nonwoven material at least in the region of the inlet opening, the nonwoven material, in the region of the inlet opening comprising an area positioned to avoid the formation of a filter cake on the area, and
- a holding plate arranged on an exterior portion of the filter bag in the region of the inlet opening, the holding plate configured for attachment to a vacuum cleaner holding means for mounting the vacuum cleaner filter bag, and on the holding plate a closing device for closing the inlet opening is provided;
- wherein the area is provided so that the closing device is not hindered by formation of the filter cake on the area and the closing device closes the inlet opening.
Dependencies are inferred from the claim text.