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
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.
대표청구항▼
1. 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
1. 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, anda 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. 2. The vacuum cleaner filter bag according to claim 1, wherein the area is formed completely or in part by a foil. 3. The vacuum cleaner filter bag according to claim 1, wherein the area is formed completely or in part by paper, cardboard or paperboard, particularly self-adhesively coated paper, self-adhesively coated cardboard, or self-adhesively coated paperboard. 4. The vacuum cleaner filter bag according to claim 1, wherein the area is formed completely or in part by compacted nonwoven material. 5. The vacuum cleaner filter bag according to claim 1, wherein the area is formed completely or in part by a liquid, the liquid forming a film while drying. 6. The vacuum cleaner filter bag according to claim 1, wherein the area comprises a strip extending around the inlet opening. 7. The vacuum cleaner filter bag according to claim 6, wherein the strip has a varying width. 8. The vacuum cleaner filter bag according to claim 6, wherein the strip is ring-shaped. 9. The vacuum cleaner filter bag according to claim 7, wherein the strip has a width ranging from 5 mm to 150 mm. 10. The vacuum cleaner filter bag according to claim 1, wherein the closing device comprises a pivotable closing element. 11. The vacuum cleaner filter bag according to claim 10, wherein the closing element is arranged in the interior of the filter bag in the region of the inlet opening. 12. The vacuum cleaner filter bag according to claim 2, wherein the foil comprises a sealing element between filter bag and holding means of the vacuum cleaner. 13. The vacuum cleaner filter bag according to claim 12, wherein the foil is made from a thermoplastic elastomer. 14. The vacuum cleaner filter bag according to claim 4, wherein the compacted nonwoven material comprises a sealing element between filter bag and holding means of the vacuum cleaner. 15. The vacuum cleaner filter bag according to claim 2, wherein the foil is made antistatic. 16. The vacuum cleaner filter bag according to claim 2, wherein the foil comprises a self-adhesively coated foil. 17. The vacuum cleaner filter bag according to claim 1, wherein the area comprises self-adhesively coated paper, self-adhesively coated cardboard, or self-adhesively coated paperboard. 18. The vacuum cleaner filter bag according to claim 7 wherein the strip has a width ranging from 10 mm to 50 mm.
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이 특허에 인용된 특허 (5)
Moyher ; Jr. George C. ; Urso Joseph P., Bactericidal vacuum cleaner filter bag.
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