Vacuum cleaning device, comprising a unit with a movable surface for generating an oscillating airflow
US9596969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2011 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Dec 2, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B5/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaning device comprises a unit (1) for aerodynamically affecting dust particles and/or a surface (40) to be cleaned in order for the particles to become dislodged from the surface (40) and to be received by the unit (1). The unit (1) comprises a housing (10) having an internal space (11) enclosed by a housing wall (12) in which at least one opening (13) is arranged, a movable surface (30) which is integrated in the housing wall (12), and means (31) for actuating the movable surface (30), which are adapted to realize an oscillating movement of the surface (30) that causes air to alternately be drawn into the housing (10) through the opening (13) and expelled from the housing (10) through the opening (13). At least a portion of the housing wall (12), particularly a portion of the housing wall (12) in which the opening (13) is located, is movably arranged in the unit (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.