| EUROFILTERS HOLDING N.V. Patent applications |
| Patent application number | Title | Published |
|---|
| 20160022105 | Vacuum Cleaner Filter Bag - The invention provides a vacuum cleaner filter bag comprising a first filter layer and a second filter layer, wherein the first filter layer is arranged upstream of the second filter layer in air flow direction, and wherein the first filter layer has at least 3 and at most 25 individual plies, especially at least 5 and at most 15 individual plies, wherein each individual ply is a dry-laid nonwoven having a basis weight of 5 g/m | 01-28-2016 |
| 20140165325 | Vacuuming Device Comprising a Vacuum Cleaner and a Bag Filter - The invention relates to a vacuum-ceaning apparatus comprising a vacuum cleaner and a filter bag made of non-woven fabric, wherein the vacuum cleaner has a nominal electric input power of less than 1200 W, preferably less than 1100 W, more preferably less than 900 W, wherein the vacuum cleaner comprises a motor-fan unit and a controlling device controlling the vacuum cleaner such that the airflow is kept substantially constant at a value of at least 34 l/s, preferably substantially constant at a value of at least 37 l/s, more preferably substantially constant at a value of at least 40 l/s when the filter bag is loaded with DMT8 test dust analogous to EN 60312, and wherein the filter bag is a disposable filter bag made of non-woven fabric which has an airflow drop of less than 15%, preferably less than 10%, more preferably less than 5% in tests demonstrating the reduction of the maximum airflow with a partially filled dust container analogous to EN 60312. | 06-19-2014 |
| 20130198994 | Vacuum-Cleaning Apparatus with Vacuum-Cleaner Unit and Filter Bag - The invention relates to a vacuum-cleaning apparatus with a vacuum-cleaner unit and a filter bag, in which the filter bag is designed as a flat bag, as a nonwoven filter bag and as a disposable filter bag, and the vacuum-cleaner unit has a filter-bag-accommodating chamber with rigid walls, wherein the filter-bag-accommodating chamber has an opening which can be closed by a flap and has a predetermined opening surface area, through which the filter bag can be inserted into the filter-bag-accommodating chamber. The invention is distinguished in that the ratio between the surface area of a rectangle corresponding to the opening surface area and the surface area of the filter bag is greater than 0.70, preferably greater than 0.85, and highly preferably greater than 1.0. | 08-08-2013 |
| 20130036717 | Vacuum Cleaner Filter Bag Having a Side Fold - The invention comprises a vacuum cleaner filter bag having at least one side fold formed by two fold legs, wherein the vacuum cleaner filter bag is designed as a tubular bag, wherein, in a turned-in state, the at least one side fold has at least three edges, wherein two of the edges are formed by a respective weld seam, and wherein the side fold can be turned out with the edges formed by a weld seam. | 02-14-2013 |
| 20120272628 | Flat bag for vacuum cleaners - A flat bag is for vacuum cleaners. The bad includes, in the interior thereof, at least one diffuser which forms an intermediate plane and is made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life. | 11-01-2012 |
| 20090272083 | Holding Plate for a Vacuum Cleaner Filter Bag - The invention relates to a holding plate ( | 11-05-2009 |
