DE2638672
An indicator device mounted on a vacuum cleaner housing which is under the influence of the pressure differnce between the inlet and outlet of a dust or dirt collector unit of the vacuum cleaner. The outer surface of the indicator device has markings that are continuously visible, and which show the...
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| Format: | Patent |
| Sprache: | eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | An indicator device mounted on a vacuum cleaner housing which is under the influence of the pressure differnce between the inlet and outlet of a dust or dirt collector unit of the vacuum cleaner. The outer surface of the indicator device has markings that are continuously visible, and which show the amount of accumulated dust and dirt filling in the dust collector, at any given time. |
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