Vacuum filter cleaner bag
US8372174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2009 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/102
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner filter bag includes (a) a bag wall made of filter material, an inlet opening being provided in the bag wall, (b) a deflecting strip for deflecting an air flow entering through the inlet opening, the deflecting strip being disposed in the interior of the vacuum cleaner filter bag, (c) a material strip which is disposed in the interior of the vacuum cleaner filter bag and connected to the bag wall, at least a part of the edge of the material strip not being connected to the bag wall, and (d) a spacing means which is configured such that the material strip is at a spacing at least partially from the bag wall during operation of the vacuum cleaner filter bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.