Vacuum cleaner having a motor-fan unit and a fine filter disposed in an exhaust air stream thereof
US7698778B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2008 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Aug 27, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/28
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner includes a motor-fan unit and a housing part including a filter receptacle. A filter frame is slidably insertable in an insertion direction into the filter receptacle so as to be disposed in an exhaust air stream of the motor-fan unit. The filter frame has a substantially parallelepiped configuration and is configured to receive a fine filter. The vacuum cleaner includes an air-permeable cover element pivotably disposed on the housing and configured to cover the filter receptacle. The cover element is operable to redirect force resulting from a pivoting movement thereof from the insertion direction to a pressing direction substantially perpendicular to the insertion direction so as to press an edge contour of the filter frame toward a mating contour of the filter receptacle in an inserted position of the filter frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.